Find flights
Deals
Insights
When to book
FAQs & Tips
Airlines

TYS - SFO

$95 Find cheap flights from Knoxville to San Francisco

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to San Francisco departing on 9/18. 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 San Francisco

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Francisco, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Knoxville to San Francisco, as well as popular online travel agencies
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 Knoxville to San Francisco (TYS-SFO)

 
These are the cheapest deals for flights from Knoxville to San Francisco currently on KAYAK along with options from the most popular airlines KAYAK users selected for this route. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.

Recent round-trip flight deals from Knoxville to San Francisco

Recommended round-trip deals departing in the coming months from the most popular airlines that fly from Knoxville to San Francisco.

Recent one-way flight deals from Knoxville to San Francisco

Only flying one-way? Below are some of the best one-way flight deals from Knoxville to San Francisco found on KAYAK recently.

Recent last minute flight deals from Knoxville to San Francisco

Leaving soon but still want a bargain? Check out these latest deals for last minute flights from Knoxville to San Francisco.

Recent direct flight deals from Knoxville to San Francisco

The latest deals for direct flights from Knoxville to San Francisco so you can sit back and relax without the need for a layover.

Cheap bus & train deals from Knoxville to San Francisco

Find recent round-trip train or bus tickets from Knoxville to San Francisco.

All round-trip flight deals to San Francisco

The cheapest plane tickets to San Francisco found on KAYAK recently.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
6:17 pm - 11:58 pmTYS-SFO
8h 41m1 stop
12:58 am - 4:42 pmSFO-TYS
12h 44m1 stop
$230Frontier
Find Deal
Wed, Aug 14 - Thu, Aug 15
6:17 pm - 11:58 pmTYS-SFO
8h 41m1 stop
7:42 pm - 4:50 pmSFO-TYS
18h 08m1 stop
$235Frontier
Find Deal
Wed, Aug 14 - Fri, Aug 16
2:52 pm - 7:47 pmTYS-SFO
7h 55m1 stop
1:38 pm - 11:50 pmSFO-TYS
7h 12m1 stop
$247American Airlines
Find Deal
Wed, Sep 11 - Wed, Sep 18
2:52 pm - 8:59 pmTYS-SFO
9h 07m1 stop
5:00 am - 3:40 pmSFO-TYS
7h 40m1 stop
$265American Airlines
Find Deal
Wed, Sep 18 - Mon, Sep 23
7:10 pm - 12:51 amTYS-SFO
8h 41m1 stop
11:45 pm - 10:14 amSFO-TYS
7h 29m1 stop
$338United Airlines
Find Deal
Mon, Jul 1 - Mon, Jul 8
7:00 am - 11:21 amTYS-SFO
7h 21m1 stop
12:35 am - 1:24 pmSFO-TYS
9h 49m1 stop
$348United Airlines
Find Deal
Wed, Sep 11 - Tue, Sep 17
6:00 am - 5:14 pmTYS-SFO
14h 14m1 stop
8:07 pm - 9:47 pmSFO-TYS
22h 40m2 stops
Mon, Jun 10 - Fri, Jun 14
6:00 am - 4:41 pmTYS-SFO
13h 41m1 stop
11:59 pm - 5:18 pmSFO-TYS
14h 19m2 stops
Mon, Jul 1 - Mon, Jul 8
12:14 pm - 4:47 pmTYS-SFO
7h 33m1 stop
9:30 am - 11:00 pmSFO-TYS
10h 30m2 stops
$777Delta
Find Deal
Thu, Jun 13 - Tue, Jun 25
10:12 am - 1:54 pmTYS-SFO
6h 42m1 stop
5:25 pm - 9:22 amSFO-TYS
12h 57m2 stops
$827Delta
Find Deal
Wed, Jun 12 - Wed, Jun 19
6:17 pm - 11:58 pmTYS-SFO
8h 41m1 stop
$95Frontier
Find Deal
Wed, Sep 18
10:41 pm - 7:11 amTYS-SFO
11h 30m1 stop
$104Frontier
Find Deal
Mon, Jun 10
4:10 pm - 10:45 pmTYS-SFO
9h 35m1 stop
$123American Airlines
Find Deal
Tue, Sep 24
10:41 pm - 7:11 amTYS-SFO
11h 30m1 stop
$145Frontier
Find Deal
Mon, Jun 17
5:55 pm - 11:59 pmTYS-SFO
9h 04m2 stops
$179United Airlines
Find Deal
Wed, Sep 18
6:30 am - 8:18 amTYS-SFO
28h 48m3 stops
Thu, Jul 25
6:30 am - 10:52 pmTYS-SFO
19h 22m2 stops
Mon, Jun 10
6:00 am - 10:52 pmTYS-SFO
19h 52m2 stops
Thu, Jun 27
12:44 pm - 7:36 pmTYS-SFO
9h 52m1 stop
$268American Airlines
Find Deal
Thu, Jun 27
6:55 pm - 9:28 amTYS-SFO
17h 33m2 stops
$399United Airlines
Find Deal
Mon, Oct 21
4:01 pm - 11:59 pmTYS-SFO
10h 58m1 stop
12:59 am - 6:47 pmSFO-TYS
14h 48m1 stop
$398Frontier
Find Deal
Fri, May 31 - Tue, Jun 4
11:07 am - 6:18 pmTYS-SFO
10h 11m1 stop
6:00 am - 5:34 pmSFO-TYS
8h 34m1 stop
$537American Airlines
Find Deal
Fri, May 31 - Wed, Jun 5
2:43 pm - 9:13 pmTYS-SFO
9h 30m1 stop
12:10 pm - 12:24 amSFO-TYS
9h 14m2 stops
$592American Airlines
Find Deal
Fri, May 31 - Wed, Jun 5
12:11 pm - 8:01 pmTYS-SFO
10h 50m2 stops
11:59 pm - 12:14 pmSFO-TYS
9h 15m2 stops
$887American Airlines
Find Deal
Fri, May 31 - Wed, Jun 5
11:16 am - 5:33 pmTYS-SFO
9h 17m1 stop
12:40 am - 2:44 pmSFO-TYS
11h 04m2 stops
$2,226Delta
Find Deal
Fri, May 31 - Tue, Jun 4
3:45 pm - 12:10 amTYS-SFO
11h 25m2 stops
12:40 am - 2:44 pmSFO-TYS
11h 04m2 stops
$2,895Delta
Find Deal
Fri, May 31 - Tue, Jun 4

Flights from Knoxville to San Francisco - Travel Insights & Trends

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

What’s the cheapest day of the week to fly from Knoxville to San Francisco?

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

What is the cheapest month to fly from Knoxville to San Francisco?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Knoxville to San Francisco, 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 Knoxville to San Francisco is February, where tickets cost $400 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $558 and $552 respectively.

How far in advance should I book a flight from Knoxville to San Francisco?

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Knoxville to San Francisco, 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 Knoxville to San Francisco, you should book around 4 days before departure. For the absolute cheapest price, our data suggests you should book 47 days before departure.

Which airlines provide the cheapest flights from Knoxville to San Francisco?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The cheapest return flight ticket from Knoxville to San Francisco found by KAYAK users in the last 72 hours was for $230 on Frontier, followed by American Airlines ($247). One-way flight deals have also been found from as low as $95 on Frontier and from $123 on American Airlines.

Good to know

Low season

February

High season

June

Cheapest flight

$95
Best time to beat the crowds with an average 22% drop in price.
Most popular time to fly with an average 8% increase in price.
Flight from Knoxville to San Francisco

When to book flights from Knoxville to San Francisco

Are your dates flexible? Find out the best times to travel from Knoxville to San Francisco 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 Knoxville to San Francisco

  • What is the cheapest flight from Knoxville to San Francisco?

    In the last 3 days, the lowest price for a flight from Knoxville to San Francisco was $95 for a one-way ticket and $230 for a round-trip.

  • Do I need a passport to fly between Knoxville and San Francisco?

    Even though you are not required to have a passport, keep in mind that an official ID is needed to board the airplane.

  • Which aircraft models fly most regularly from Knoxville to San Francisco?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Knoxville to San Francisco?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Knoxville and San Francisco, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Knoxville to San Francisco, Delta or United Airlines?

    The two airlines most popular with KAYAK users for flights from Knoxville to San Francisco are Delta and United Airlines. With an average price for the route of $477 and an overall rating of 8.0, Delta is the most popular choice. United Airlines is also a great choice for the route, with an average price of $589 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Knoxville to San Francisco?

    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 Knoxville to San Francisco.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to San Francisco from Knoxville 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 Knoxville to San Francisco?

    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 San Francisco with an airline and back to Knoxville with another airline. Booking your flights between Knoxville and SFO can sometimes prove cheaper using this method.

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

    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 San Francisco from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top 4 airlines serving from Knoxville to San Francisco

 
See real verified KAYAK customer reviews for airlines flying from Knoxville to San Francisco. 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 Knoxville to San Francisco? 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.
8.0
DeltaOverall score based on 10457 reviews
7.9Comfort
8.6Crew
8.2Boarding
8.0Entertainment
7.4Food
Airline reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

8.0 ExcellentLiam, May 2024SLC - SJC
Read more about Delta reviews

Had to change aircraft due to a faulty door. Surprisingly it only caused about an hour and a half of delay. Delta handled this situation as well as can be expected.

Your crew could maybe answer the call bell at least one of the times I pressed it. I pressed it first time with 2.5 hours left in our flight bc my partner was hungry and wanted a sandwich. We finally got the sandwich with 40 mins left in the flight.

The Flight crew didn’t serve us until about 1.5 hours into the flight because of turbulence but after it ended it was fine to move around. They served us water only and snacks and then NEVER, NOT ONE TIME came through to collect trash until right before landing about 1.5 hours later. There was absolutely no need for that. They crew was just standing around talking and visiting with each other and really never tried to see if we might want something besides water or even try to come pick up trash. This is VERY unusual for a Delta flight but it was not what I would have expected for a 4 hour flight.

From Atlanta to Cabo I would have hoped on a plane that size I would have been able to breathe and wiggle my feet a little! The leg room in that plane is non existent and I am only 5”4’. And the air vent either wasn’t working very well or just could not blow air from the ceiling to the seat area as I was suffocating through the entire flight! And please don’t say I would have been more comfortable in first class because I cannot afford those rates and have always travelled Main Cabin without issues !

There was a loud squeaky sound the whole time we were flying.

Had a broken tray in business class. Crew just shrugged it off.

I didn’t like that I could not select my seat and was assigned a seat when I checked in at LAX

Great experience overall. Check in at Austin was congested as they only have about 6 check in kiosks, one was broken, and there was a lot of Spring Break travelers.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Everything was very good other than I had selected a specific seat when I booked the flight and they changed it once I checked-in the day before my flight. I was still in first class but lost my aisle seat for a window seat. Being tall, the aisle offers more comfort so I always select an aisle seat.

Dinner was okay but the breakfast was not eatable on the flight San Francisco to Zurich.

I’ve had a couple flights this week on United that were delayed by an hour or more

Should have video screens Plane audio was poor and without wired connection hard to understand crew. Should serve more than just cups of water and pretzels on six hour flight. Did not see crew rest of flight. Fix charging sockets to retain charging blocks.

Do not like the feeling of being in the basic economy. Everyone should feel good no matter what.

So so. Terrible aircraft choice for that leg of the flight.

delay several times and wait extra long to board. no entertainment service because there are problem for some rows. always encounter some delays for the last flight of the day.

This was a Lufthansa flight. Disappointing main meal. Very rough over Canada and arrival at FRA. IFE was almost unusable.

I was not able to buy food in the flight. They refer to include your Credit card in the APP, and if you are not from USA (i have a credit card form Canada) it is not possible

United airline kept delaying our flight back to Phoenix for 8 hours before they cancelled it! If they know that we are not flying out for whatever the reason is, why did they keep lying to us for hours. We could find another flight earlier or even find a hotel with a shuttle. But cancellation at about midnight was not fun. We stayed in the airport all night till the following morning when we bought an Alaska tickets to go back to Phoenix. Total of 14 hours in the airport.

Poor seating comfort, seat cushion too thin, very uncomfortable. My luggage didi not make the flight due to equipment change. At least. United had it delivered the next day. I was without my toilet items for one day.

There were delays on both ends. It made it less than excellent. This plane was great though

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Attendants were rude. Scowling. Seats were miserable and we paid extra.

Somehow I got “offloaded” even though I had my boarding pass and was in transit Food is horrible Staff were nice and cheerful No headphones were provided on 11 hours flight

Fight crew was not very attentive and the bastions were gross!

Our flight was great we left Kona earlier and got into LAX almost an 1hour earlier as well. LAX AA is in repair so to get out and found our bus to get pick up was a bit confusing.

Plane was good but was delayed. probably not AA fault but caused a 1 hour delay. Seating was cramped.

The staff were very helpful with lots of refreshments on offer. The toilets were clean. The seats were comfortable and entertainment was good. No complaints, it was excellent.

5 hour flight - full flight - not enough room to use my computer - slightly delayed - Admirals club was excellent quality food, drink made up for flight seating. No food offerred on flight, you ahd to prebook.

We experience delays on departure and connecting flights resulting in 14 hour to our next departure. We were accommodated with a night's stay but was only provided a 12 dollar meals accommodation. The airlines rules state.at least 50 dollars. In any case, it can not make up for the whole day missed on our vacation in Sydney Australia.

9hrs delay and didn’t provided anything until after flight landed $75 voucher for fiuture travel no meals or anything.

It was ridiculously hard to check in for the flight, and Frontier charged us a LOT of money to have a carry on suitcase, and then told everyone we could not carry on bags and had to check them through at the gate, and didn't refund the extra money we paid to have the suitcase as carry on.

I had a terrible experience with Frontier. I arrived before the 60 minute cut off and was told that Frontier has a two hour window for bags. I was then told the next available flight wasn’t until the end of the day (I had booked a 6am flight). I took a look around and saw other people being told that they could not board their flights or that they had to pay additional fees. I opted to rebook on American Airlines. There’s absolutely no straightforward way to contact Frontier, so this ticket was a complete waste of money. Oh - and the kicker is that the lady lied about the two hour cut off.

Frontier won’t help you at the airport without paying $25. Carry on was $75. Then you get on the plain and every beverage or snack is also a charge. Seats are hard and real packed in. I would never fly them again.

Worst experience I have seen. The flight was cancelled without any reason.

My experience with frontier staff at the Denver airport was absolutely horrible. The manager on duty was even worst if was the worst experience I have ever had, I have never been treated so poorly as a customer in my life! The staff was extremely rude, eye rolls and attitude and then refusal to help me at all. I wish I could never fly frontier again that’s how horrible it was!

The Frontier app wasn’t working. So I could not pay for a carry on the week prior to flying. They charged me 99$ at the gate to carry on a duffle bag.

Good for the price. My only complaint is that the pilot should keep the air flowing while passengers are waiting to getting out of airplane.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Book cheap flights from Knoxville to San Francisco

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Knoxville to San Francisco found on KAYAK in the last 72 hours.
9/18Wed
1 stopFrontier
8h 41mTYS-SFO
$95
6/10Mon
1 stopFrontier
11h 30mTYS-SFO
$104
9/24Tue
1 stopAmerican Airlines
9h 35mTYS-SFO
$123
6/17Mon
1 stopFrontier
11h 30mTYS-SFO
$145
9/18Wed
2 stopsUnited Airlines
9h 04mTYS-SFO
$179
7/25Thu
3 stops
28h 48mTYS-SFO
$226
6/10Mon
2 stops
19h 22mTYS-SFO
$234
6/27Thu
2 stops
19h 52mTYS-SFO
$243
6/27Thu
1 stopAmerican Airlines
9h 52mTYS-SFO
$268
10/21Mon
2 stopsUnited Airlines
17h 33mTYS-SFO
$399

Search by stops

Search by airline

Search by price

Last minute flights from Knoxville to San Francisco

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 Knoxville to San Francisco that are departing in the next 10 days.
5/31Fri
multi-stopFrontier
10h 58mTYS-SFO
6/4Tue
multi-stopFrontier
14h 48mSFO-TYS
$398
5/31Fri
multi-stopAmerican Airlines
10h 11mTYS-SFO
6/5Wed
multi-stopAmerican Airlines
8h 34mSFO-TYS
$537
5/31Fri
multi-stopAmerican Airlines
9h 30mTYS-SFO
6/5Wed
multi-stopAmerican Airlines
9h 14mSFO-TYS
$592
5/31Fri
multi-stopAmerican Airlines
10h 50mTYS-SFO
6/5Wed
multi-stopAmerican Airlines
9h 15mSFO-TYS
$887
5/31Fri
multi-stopDelta
9h 17mTYS-SFO
6/4Tue
multi-stopDelta
11h 04mSFO-TYS
$2,226
5/31Fri
multi-stopDelta
11h 25mTYS-SFO
6/4Tue
multi-stopDelta
11h 04mSFO-TYS
$2,895

Search by stops

Search by airline

Search by price

Knoxville - San Francisco Flights

Departure:

Knoxville (TYS)United States

Destination:

San Francisco (SFO)United States

Return flight deals:

San Francisco - Knoxville

Cabin classes: