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Find cheap flights from Phoenix to Idaho from $48

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Phoenix to Idaho departing on 6/18. 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

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Best Idaho Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Boise
Boise1 stop$93

Good to know

Cheapest flight

$48
Flight from Phoenix Sky Harbor Airport to Boise

FAQs - booking Idaho flights

  • How does KAYAK find such low prices on flights from Phoenix to Idaho?

    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 Phoenix to Idaho.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Idaho from Phoenix 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 Phoenix to Idaho?

    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 Idaho with an airline and back to Phoenix with another airline.

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

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

See more FAQs

Book cheap flights from Phoenix to Idaho

Recent round-trip flight deals

6/15Sat
1 stopSpirit Airlines
7h 44mPHX-BOI
6/18Tue
1 stopSpirit Airlines
14h 36mBOI-PHX
$93
6/15Sat
1 stopSpirit Airlines
7h 44mPHX-BOI
6/18Tue
1 stopSpirit Airlines
14h 36mBOI-PHX
$94
7/19Fri
nonstopAllegiant Air
2h 03mAZA-BOI
7/22Mon
nonstopAllegiant Air
2h 06mBOI-AZA
$111
7/5Fri
nonstopAllegiant Air
2h 03mAZA-BOI
7/8Mon
nonstopAllegiant Air
2h 06mBOI-AZA
$152
6/15Sat
2 stops
21h 41mPHX-BOI
6/18Tue
1 stop
14h 36mBOI-PHX
$157
6/26Wed
1 stop
7h 31mPHX-BOI
7/8Mon
nonstop
2h 09mBOI-PHX
$164
9/5Thu
nonstopAmerican Airlines
2h 07mPHX-BOI
9/9Mon
nonstopAmerican Airlines
2h 07mBOI-PHX
$189
9/5Thu
nonstopAlaska Airlines
2h 12mPHX-BOI
9/9Mon
1 stopAlaska Airlines
8h 21mBOI-PHX
$198
9/23Mon
nonstopAmerican Airlines
2h 07mPHX-BOI
9/28Sat
nonstopAmerican Airlines
2h 13mBOI-PHX
$214
9/16Mon
nonstopAlaska Airlines
2h 12mPHX-BOI
9/21Sat
1 stopAlaska Airlines
4h 54mBOI-PHX
$228

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Recent one-way flight deals

6/18Tue
1 stopSpirit Airlines
5h 23mPHX-BOI
$48
6/5Wed
1 stopSpirit Airlines
7h 31mPHX-BOI
$53
6/17Mon
nonstopAllegiant Air
2h 05mAZA-BOI
$68
7/17Wed
1 stop
11h 36mPHX-GEG
$87
6/7Fri
nonstopAllegiant Air
2h 05mAZA-BOI
$91
6/4Tue
nonstopAmerican Airlines
2h 43mPHX-GEG
$97
10/3Thu
nonstopAmerican Airlines
2h 07mPHX-BOI
$100
6/4Tue
1 stopDelta
5h 47mPHX-GEG
$106
10/3Thu
1 stopDelta
7h 29mPHX-BOI
$109
7/4Thu
2 stops
24h 54mPHX-IDA
$110

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Last minute flights from Phoenix to Idaho

Last minute flight, train and bus deals

6/4Tue
multi-stopSpirit Airlines
8h 00mPHX-BOI
6/7Fri
multi-stopSpirit Airlines
14h 36mBOI-PHX
$106
6/4Tue
multi-stopSpirit Airlines
4h 05mPHX-BOI
6/8Sat
multi-stopSpirit Airlines
14h 36mBOI-PHX
$199
6/4Tue
multi-stop
4h 05mPHX-BOI
6/7Fri
nonstop
2h 05mBOI-PHX
$208
6/4Tue
multi-stop
8h 00mPHX-BOI
6/7Fri
multi-stop
16h 29mBOI-PHX
$248
6/4Tue
multi-stopAlaska Airlines
6h 52mPHX-IDA
6/5Wed
multi-stopAlaska Airlines
6h 28mIDA-PHX
$308
6/4Tue
multi-stopUnited Airlines
7h 18mPHX-GEG
6/6Thu
multi-stopUnited Airlines
8h 11mGEG-PHX
$314
6/4Tue
nonstopAmerican Airlines
2h 08mPHX-BOI
6/7Fri
nonstopAmerican Airlines
2h 15mBOI-PHX
$318
6/1Sat
nonstopAmerican Airlines
2h 43mPHX-GEG
7/17Wed
nonstopAmerican Airlines
2h 38mGEG-PHX
$328
6/1Sat
multi-stopAlaska Airlines
5h 00mPHX-GEG
7/17Wed
multi-stopAlaska Airlines
6h 40mGEG-PHX
$337
6/3Mon
multi-stopUnited Airlines
7h 18mPHX-GEG
6/6Thu
multi-stopUnited Airlines
8h 11mGEG-PHX
$420

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Flights to Idaho

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