Find flights
Deals
Insights
When to book
FAQs & Tips
Direct Flights
Airlines

CHI - LON

$198 Find cheap flights from Chicago to London

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to London departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 6/29
Sat 7/6

Search hundreds of travel sites at once for deals on flights to London

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to London.
In the last 7 days travelers have searched 42,686,544 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Bundle and saveSave money when you bundle your flight + hotel.

Cheap flight deals from Chicago to London (CHI-LON)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to London that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
8:10 pm - 9:40 pmORD-LHR
19h 30m1 stop
5:00 pm - 6:05 pmLHR-ORD
31h 05m1 stop
$466Scandinavian Airlines
Find Deal
Mon, Nov 18 - Tue, Nov 26
8:10 pm - 9:35 pmORD-LHR
19h 25m2 stops
6:40 pm - 6:05 pmLHR-ORD
29h 25m1 stop
$470Scandinavian Airlines
Find Deal
Mon, Nov 18 - Tue, Nov 26
10:25 pm - 12:15 pmORD-LHR
7h 50mnonstop
6:15 am - 2:20 pmLHR-ORD
14h 05m1 stop
$519Iberia
Find Deal
Sun, Sep 8 - Tue, Sep 17
7:30 pm - 8:20 pmORD-LHR
18h 50m1 stop
1:05 pm - 9:15 pmLHR-ORD
14h 10m1 stop
$525Icelandair
Find Deal
Sun, Sep 8 - Tue, Sep 17
9:25 pm - 11:15 amORD-LHR
7h 50mnonstop
7:15 pm - 11:45 amLHR-ORD
22h 30m1 stop
$529British Airways
Find Deal
Wed, Oct 2 - Mon, Oct 7
10:00 am - 10:40 pmORD-LHR
7h 40mnonstop
6:20 am - 2:25 pmLHR-ORD
14h 05m1 stop
$530Iberia
Find Deal
Sun, Oct 27 - Wed, Nov 6
4:50 pm - 9:30 amORD-LHR
10h 40m1 stop
7:15 pm - 11:45 amLHR-ORD
22h 30m1 stop
$534British Airways
Find Deal
Wed, Oct 9 - Mon, Oct 14
10:15 pm - 11:55 amORD-LHR
31h 40m1 stop
1:05 pm - 6:15 pmLHR-ORD
11h 10m1 stop
$535Icelandair
Find Deal
Sun, Aug 18 - Mon, Aug 26
10:10 pm - 2:55 pmORD-LHR
10h 45m1 stop
8:10 am - 10:45 amLHR-ORD
8h 35mnonstop
$551American Airlines
Find Deal
Wed, Oct 9 - Tue, Oct 22
10:10 pm - 2:55 pmORD-LHR
10h 45m1 stop
9:55 am - 12:50 pmLHR-ORD
8h 55mnonstop
$552American Airlines
Find Deal
Wed, Oct 23 - Tue, Nov 5

Flights from Chicago to London - Travel Insights & Trends

Get data-powered insights and trends into flights from Chicago to London to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to London flight route?

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for one-way flights from Chicago to London.
Our data shows that the cheapest route for a one-way flight from Chicago to London cost $432 and was between Chicago O'Hare Intl Airport and London Heathrow Airport. On average, the best prices are found if you fly this route. The average price for a return flight for this route is $558.

What’s the cheapest day of the week to fly from Chicago to London?

The average price of all flights from Chicago to London clicked on KAYAK for each day over the last 12 months.
For Chicago to London, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from London back to Chicago, the best deals are generally found on Wednesday, with Saturday being the most expensive.

What is the cheapest month to fly from Chicago to London?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Chicago to London, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.
The cheapest month for flights from Chicago to London is February, where tickets cost $629 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,133 and $1,040 respectively.

How far in advance should I book a flight from Chicago to London?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Chicago to London, removes the top 0.1% to account for outliers, and then takes the average of all the values for each month.
To get a below average price on the flight from Chicago to London, you should book around 1 day before departure. For the absolute cheapest price, our data suggests you should book 86 days before departure.

Which airlines provide the cheapest flights from Chicago to London?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Icelandair ($238) and TAP AIR PORTUGAL ($330). The cheapest round-trip tickets were found on Scandinavian Airlines ($466) and TAP AIR PORTUGAL ($502).

Which airlines fly most frequently between Chicago and London?

American Airlines connects Chicago to London up to 12 flights per day, followed by British Airways (4 flights per day), and United Airlines (3 flights per day).

Which airlines fly non-stop between Chicago and London?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Chicago to London.
There are 3 airlines that fly nonstop from Chicago to London. They are: American Airlines, British Airways and United Airlines. The cheapest price of all airlines flying this route was found with United Airlines at $571 for a one-way flight. On average, the best prices for this route can be found at American Airlines.

How many flights are there between Chicago and London per day?

Each day, there are between 19 and 20 nonstop flights that take off from Chicago and land in London, with an average flight time of 7h 55m. The most common departure time is 6:00 pm and most flights take off in the evening, while the most flights land at London Heathrow Airport. Each week, there are 136 flights. The most frequent day of departure is Saturday, when 15% of all weekly flights depart. The fewest flights depart on a Sunday.

Which cabin class options are there for flights between Chicago and London?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 4 cabin class options for the route. These are First, Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Chicago to London take?

The average nonstop flight takes 7h 30m, covering a distance of 3,945 miles.

What’s the earliest departure time from Chicago to London?

Early birds can take the earliest flight from Chicago at 8:10 am and will be landing in London at 10:10 pm.

What’s the latest departure time from Chicago to London?

If you prefer to fly at night, the latest flight from Chicago to London jets off at 10:45 pm and lands at 12:15 pm.

Good to know

Low season

January

High season

June

Cheapest flight

$198
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 48% increase in price.
Flight from Chicago Midway Airport to London Gatwick Airport

When to book flights from Chicago to London

Are your dates flexible? Find out the best times to travel from Chicago to London based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Chicago to London

  • Does London Heathrow Airport have an airport hotel?

    Yes. If you wish to stay overnight or in a day room at LHR, book your stay at the Aerotel London Heathrow. The establishment is located in Terminal 3 landside and has 82 guest rooms which can be rented hourly or for overnight stays. You can rent the room for 6h, 9h, 12h, or 24h.

  • What are the transport options from London Heathrow Airport?

    LHR has a bus station, just a short walk from Terminals 2 and 3, but you’ll also find some buses outside Terminals 4 and 5. Various companies provide these buses, and their services extend to downtown London, west London, railway stations, and many more. You can also take the Heathrow Express, a train from LHR to Paddington Station. Trains leave every 15min. The other train is the Heathrow Connect which departs every 30min but offers a slower service. The Underground or the Tube to Piccadilly is another train option from LHR. Taxis and rental cars are also available at Heathrow Airport.

  • What are the most eco-friendly airlines flying from Chicago to London?

    Around 1,602 kg of carbon is emitted per passenger on flights from Chicago to London. Fly with Delta, KLM, or British Airways for a more sustainable journey. These airlines emit 32%, 20%, and 20% less carbon per passenger on these flights to London. Moreover, each of these airlines offers nonstop flights from Chicago to London.

  • Which accessible services are offered at London Gatwick Airport?

    LGW is an accessible airport with barrier-free access to all areas of the airport complex. Reserved spots are available at the parking, and lifts and ramps have been provided too. The airport has unisex accessible toilets dotted around the airport for those in wheelchairs. The airport also has special help points with telephones where passengers with any disability can call and get assistance. The airport also has a one-of-a-kind sensory room which provides a calming and relaxing environment for passengers with disabilities like autism and dementia.

  • Which airport should I fly into in London?

    You should select your arrival airport depending on where you are staying in the UK. Travel times will also differ depending on the type of transport you take. Heathrow Airport is 14 miles west of central London and arguably the easiest airport for getting into town, with connections to the London Underground, the Heathrow Express, and bus services. Gatwick is located 25 miles from the city center and is served by the Gatwick Express, Southern, and Thameslink trains.

  • Where can I get a meal at Chicago O’Hare?

    There are over 60 places to dine at Chicago O’Hare, from full service restaurants to soups and salads. Order a glass of wine or ale, savor a Chicago-style hot dog, or purchase a healthy snack to go at one of these convenient and cozy locations.

  • Can I go shopping at Chicago Airport?

    Browse through more than 30 shops at Chicago airport and pick up last-minute items before you fly. International travelers can choose from a large selection of duty-free items as well as cosmetics, luxury apparel, and travel accessories.

  • I’m traveling with a baby. What kind of facilities are available?

    If you’re looking for a place to feed your child, six Mother’s rooms are located within Chicago airport and are equipped with comfortable seats, a sink, and changing table. For the convenience of traveling families, there are also a number of unisex restrooms and changing stations in each terminal.

  • What is the cheapest flight from Chicago to London?

    In the last 3 days, the lowest price for a flight from Chicago to London was $198 for a one-way ticket and $466 for a round-trip.

  • Do I need a passport to fly between Chicago and London?

    Yes

  • Which airports will I be using when flying from Chicago to London?

    Chicago has 2 major airports: Chicago Midway and Chicago O'Hare Intl. London is served by 5 airports: London City, London Gatwick, London Heathrow, London Southend, and London Stansted. You’ll usually find the cheapest deals if you fly from Chicago O'Hare Airport and land at London Heathrow Airport.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to London?

    All the following airlines offer inflight Wi-Fi service on the Chicago to London flight route: British Airways, Finnair, Iberia, American Airlines, Lufthansa, SWISS, and United Airlines.

  • Which aircraft models fly most regularly from Chicago to London?

    The Boeing 787-9 Dreamliner is the aircraft model that flies most regularly on the Chicago to London flight route.

  • Which airline alliances offer flights from Chicago to London?

    oneworld, and Star Alliance are the airline alliances operating flights between Chicago and London, with oneworld being the most commonly used for this route.

  • On which days can I fly direct from Chicago to London?

    There are nonstop flights from Chicago to London on a daily basis.

  • Which is the best airline for flights from Chicago to London, Finnair or Scandinavian Airlines?

    The two airlines most popular with KAYAK users for flights from Chicago to London are Finnair and Scandinavian Airlines. With an average price for the route of $785 and an overall rating of 7.7, Finnair is the most popular choice. Scandinavian Airlines is also a great choice for the route, with an average price of $446 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Chicago to London?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to London.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to London?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to London from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to London?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to London with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to London?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to London from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding a cheap flight from Chicago to London

  • Looking for a cheap flight? 25% of our users found flights on this route for $543 or less one-way and $691 or less round-trip.
  • Chicago O’Hare International Airport (ORD) is a massive airport with four terminals and nine concourses. For easy access to all airport areas, the airport has the ATS, an automated train that travels between terminals and loops the entire airport complex.
  • Pets are required to remain within their carriers when traveling through ORD. The airport has also provided pet relief areas inside and outside the terminal building. You’ll find outdoor areas around Terminals 1, 2, and 5 and the indoor area in Terminal 3’s rotunda.
  • If traveling to south London, consider flying to London Gatwick Airport (LGW) over Heathrow. LHR is in west London, ideal for people traveling to west and central London, while LGW is 30 miles south of central London.
  • For those looking to land close to central London, consider flying to London City Airport (LCY). However, it is the only airport actually in London, however, note that all flights from Chicago headed into LCY usually have at least one stop en route, usually in Amsterdam.
  • Midway Airport (MDW) is much smaller and less busy than ORD, meaning quicker clearing processes and shorter queues. It also offers flights to London, but there are no nonstop flights to London from MDW.
  • Flights from Chicago to London usually depart from Chicago O’Hare International Airport and arrive at Heathrow or Gatwick airport in London. The average flight time for this route is 8 hours and 17 minutes.
  • Direct flights from Chicago to London can be booked through a number of airlines including Iberia, British Airways, American Airlines, and United. Non-stop flights are generally more expensive than flights with layovers.
  • The Public Art program at Chicago O’Hare showcases the creativity of the city to passengers passing through the terminals. Inspired by air travel, urban life, and Chicago’s beloved musicians, a diverse collection of paintings, murals, sculptures, and exhibits can be found throughout the airport terminals.
  • Plant lovers will enjoy visiting the Aeroponic Garden in Terminal 3 of Chicago Airport. This green space features 26 vertical towers and over a thousand plants that are grown without soil. A number of the airport’s restaurants including Tuscany Café and Tortas Frontera harvest fresh herbs, edible flowers, and varieties of lettuce that are used in their restaurants daily.
  • U.S. military personnel and their families are welcome to use the USO lounges in Terminals 2 and 3 of Chicago Airport. Open 24/7, facilities include travel and lodging information, refreshments, and lounges with television. US military travelers also receive a discount on food, shops, and facilities at Chicago O’Hare with a valid military ID.
  • If you want to stretch, meditate, or relax before your long flight to London, visit the dedicated Yoga Room in the T3 Rotunda. Spa outlets in the terminal also offer invigorating massages, manicures, and pedicures while you wait.
See more tips

Prefer to fly non-stop from Chicago to London?

Find which airlines fly direct from Chicago to London, which days they fly and book direct flights.

Nonstop departures

Chicago to London

Monday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Tuesday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Wednesday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Thursday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Friday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Saturday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

Sunday

Aer Lingus, Air Canada, Alaska Airlines, +14 more

Aer Lingus, Air Canada, +15 more

See more direct flights

Nonstop returns

London to Chicago

Monday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Tuesday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Wednesday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Thursday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Friday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Saturday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

Sunday

Aer Lingus, Air Canada, Alaska Airlines, +13 more

Aer Lingus, Air Canada, +14 more

See more direct flights
See more direct flights

Top 5 airlines serving from Chicago to London

 
See real verified KAYAK customer reviews for airlines flying from Chicago to London. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to London? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
Scandinavian AirlinesOverall score based on 1402 reviews
8.1Crew
7.3Comfort
7.7Boarding
6.7Entertainment
6.8Food
Airline reviews

SAS is the representation of the Scandinavian minimalism, which I like. I wished they had a more relaxed policy on free water distribution beyond one bottle (500 ml) per person and two drinks, including water, per overseas flight.

8.0 ExcellentAnonymous, May 2024JFK - CPH
Read more about Scandinavian Airlines reviews

SAS is the representation of the Scandinavian minimalism, which I like. I wished they had a more relaxed policy on free water distribution beyond one bottle (500 ml) per person and two drinks, including water, per overseas flight.

Bathrooms weren’t too clean. Onboard entertainment was light. Other than that everything was great. Food, service, comfort and crew. Although it was hard to understand the crew announcements.

Much better, not their fault but my plane was so delayed causing me to have to take this airline rather than my earlier connecting flight

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

All was good. I think the back of the plane should be boarded first. It would be faster. Minimal waiting time behind passengers loading their carry on baggage.

My return flight has been changed to JFK from EWR without any notice or reason

This was my first time flying SAS and used them for 4 flights. The crews, flight and communication was outstanding. I flew premium economy and was extremely impressed by their SAS lounges. I will 100% ise SAS again. Everyone was so pleasant!

I upgraded to economy plus and it’s so worth the price. The crew is exceptional and the food is pretty decent. I would definitely fly with them again.

The flight was on time and loading was fine. I really disliked that all drinks other than coffee or tea had a cost. Deplaning was also an issue as people did not wait for those in front of them to get out before they pushed forward

Flight was delayed 3 hours. Pilot cancelled flight under 4 people volunteered to change their seats to economy from business class.

very very tight seats unfriendly crew who do not seem to care about the comfort of their passengers and do not know how to smile poor ground staff support at LHR and PHX

So uncomfortable to sit in the tiny space on a long, international. Food was rough. Please, less white flour and processed food.

Our flight was delayed 2.5 hrs due to plane being too hot! After 1.5 hrs, airline decided to use another plane but had to wait for gate, baggage transfer & beverage transfer. Anyone could tell after first half hour that another plane was required and although did not affect us many would miss connecting flights at Heathrow. I have found the stewards are not the friendliest in the industry and the food is questionable, even as I like airplane food normally, the best of the 2 flights was the yogurt & granola for breakfast.

Terrible boarding , Business class seats are sub standard. As usual crew will miss your food too

Just get Economy Plus for international flights, so worth it the extra room, bigger seats…

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Good flights. Departure and arrivals were on time. DFW was a little problematic in that the Skytrain without prior notice bypassed the Echo terminal so that delayed my arrival at my connecting flight.

Because I can’t stand very long in one place, I was allowed to reword.

The return trip was a customer service disaster. American Airlines needs an overhaul of how they treat their customers.

Was flying in premium eco and there were around 5-6 movies I wanted to watch and none of those could I play for some reasons. Not just me we checked w the person sitting next to me. Few of the movies were only playable :( Also that was not great that we couldn't upgrade to business however tried to, many times before the flight :(

Ability to select seating would be nice. We were family of three and they had us seated back to back and one of us on the other side of the plane??? That is pretty goofy. Especially when tickets were placed two months in advance.

I am quite satisfied. The flight was on time and landed early. Staff was friendly.

Needed more info on connecting flight. Late flight made very short connection. Lost luggage that we still do not have!

Seats comfortable on economy plus and attendants very helpful. Food was ok. Bathrooms needed servicing.

Original flight was cancelled - After waiting 2 hours for new take-off times. Then had to stand in line for 3 hours, ending at 2:30 am - to be told, " No hotel rooms anywhere in Dallas". No way for me to get any rest at DFW at that time of night.

I liked the friendly crew and desk staff, all very helpful. I was surprised and a little annoyed on my outbound flight from LGW to MCO as I had prepaid and booked my seat, which was all correct at check in on my boarding pass. when I got on the plane someone was in my seat ! I was moved to another seat. The food choice is quite limited and I feel that an option of a muffin for breakfast snack would be welcomed, not everyone wants egg or bacon wrap. The choice of entertainment is good, plenty to keep you busy on a long haul flight. I liked the option offered to have the cabin bag checked into the hold, it saved me as an older, lone traveller lifting my case into the overhead locker or finding there was no space.

good service from crew. Before the would have an option between cookies or nuts as snacks.. Now, there are only cookies. too bad. People who can not have sugar don't have a choice.

I’m hoping for WiFi included. Everything else was very good

This flight was a code share for both Iberia and American Airlines and run by what I assume is a charter company Level. It was difficult if not impossible to get a seat assigned, check bags or use any customer service functions. I would skip it!

Rude security cunts. However the lady that issued my boarding ticket when I was flying back from New York was lovely & helpful!!

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

First time flying with BA and I will do it again. Staff at airport and on board were very nice and helpful

Wonderful service and very comfy in the bulkhead in Economy Plus! Delicious food.

The BA team at Sky Harbor is deplorable, full of unnecessary attitude and poor communication. It seems like every member of the team was looking at another to solve the problem, instead of taking agency to do so themselves. I saw no less than 6 altercations with the same gate agent where he threatened to revoke the passengers boarding pass for asking a wildly reasonable question, something as simple as where the cue to board was. I’ve complained to BA before but it seems this isn’t an issue for them, which is very disappointing

Boarding poor in London,ok in Chicago. Don’t like Heatrow/terminal5

It was very good. We got a late start by about an hour and a half. However I worked rather have that than crash. It was purely mechanical. They had our tickets ready when we came off the plane in London for the next leg. The only mishap was when we got to Lisbon my husbands luggage made or bit mine didn't. All was not lost because I did finally get it 2 days later. I was really pleased that they c made the effort.

Liked that my American Airlines status seamlessly transferred to BA so luggage check was free. Flights were on time, boarding quick. Wish they didn’t assign connecting gate so late at Heathrow.

The entire process was flawless and as expected flying first class. The only thing that I have a complaint on...when first boarding, the plane was EXTREMELY cold; then when we were trying to sleep, it was way too hot - just better regulating (especially trying to sleep) would have made it perfect.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working.

- OK plane. Basic accommodations. OK food. The digital window shade wasn't working. - Expect to be woken up more than an hour before landing when they start dinging the bell and making announcements and turning on all cabin lights to serve a snack. I would prefer they remain quiet and only serve people who want to wake up.

Book cheap flights from Chicago to London

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Chicago to London found on KAYAK in the last 72 hours.
7/13Sat
1 stop
15h 29mMDW-LGW
$198
9/4Wed
1 stop
28h 47mMDW-LGW
$206
10/8Tue
1 stopIcelandair
10h 25mORD-LHR
$238
9/24Tue
1 stopIcelandair
16h 05mORD-LHR
$244
9/24Tue
nonstopIberia
7h 50mORD-LHR
$382
9/29Sun
nonstopAmerican Airlines
7h 50mORD-LHR
$404
9/29Sun
1 stopBritish Airways
13h 20mORD-LCY
$424
7/14Sun
nonstopIberia
7h 50mORD-LHR
$444
11/13Wed
1 stopBritish Airways
16h 55mORD-LCY
$449
7/14Sun
1 stopAmerican Airlines
10h 30mORD-LHR
$462

Search by stops

Search by airline

Search by price

Last minute flights from Chicago to London

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Chicago to London that are departing in the next 10 days.
6/1Sat
nonstopBritish Airways
7h 50mORD-LHR
6/12Wed
nonstopBritish Airways
8h 40mLHR-ORD
$736
5/31Fri
multi-stopBritish Airways
22h 30mORD-LHR
6/19Wed
nonstopBritish Airways
8h 40mLHR-ORD
$747
6/1Sat
nonstopFinnair
7h 50mORD-LHR
6/8Sat
nonstopFinnair
8h 42mLHR-ORD
$753
6/2Sun
multi-stop
42h 25mORD-LGW
6/4Tue
multi-stop
19h 34mLGW-ORD
$779
6/4Tue
multi-stopAmerican Airlines
12h 21mORD-LHR
7/30Tue
multi-stopAmerican Airlines
13h 54mLHR-ORD
$890
6/2Sun
multi-stopAmerican Airlines
28h 08mORD-LHR
6/17Mon
multi-stopAmerican Airlines
26h 35mLHR-ORD
$909
5/31Fri
nonstopIberia
7h 50mORD-LHR
6/11Tue
nonstopIberia
8h 40mLHR-ORD
$926
5/31Fri
nonstopIberia
7h 50mORD-LHR
6/12Wed
nonstopIberia
8h 40mLHR-ORD
$945
6/3Mon
multi-stopIcelandair
10h 20mORD-LGW
8/23Fri
multi-stopIcelandair
11h 15mLGW-ORD
$1,044
6/4Tue
multi-stopIcelandair
16h 05mORD-LHR
6/18Tue
multi-stopIcelandair
26h 50mLHR-ORD
$1,071

Search by stops

Search by airline

Search by price

Flights to London

Return flight deals:

London - Chicago

Cabin classes:

$4,656
$2,603
$1,451
$558