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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 6/19. 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
Thu 7/11
Thu 7/18

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Best Idaho Flight Deals

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

Boise
Boisenonstop$79

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

9/6Fri
nonstopAllegiant Air
2h 06mAZA-BOI
9/9Mon
nonstopAllegiant Air
2h 07mBOI-AZA
$79
7/9Tue
1 stopSpirit Airlines
9h 07mPHX-BOI
7/16Tue
1 stopSpirit Airlines
8h 23mBOI-PHX
$90
6/26Wed
1 stop
7h 31mPHX-BOI
7/1Mon
nonstop
2h 09mBOI-PHX
$131
9/6Fri
nonstopAmerican Airlines
2h 07mPHX-BOI
9/9Mon
nonstopAmerican Airlines
2h 07mBOI-PHX
$143
12/4Wed
nonstopAmerican Airlines
2h 18mPHX-BOI
12/7Sat
nonstopAmerican Airlines
2h 18mBOI-PHX
$155
9/26Thu
nonstop
2h 12mPHX-BOI
9/30Mon
1 stop
8h 31mBOI-PHX
$161
9/6Fri
1 stopAlaska Airlines
7h 56mPHX-BOI
9/9Mon
nonstopAlaska Airlines
2h 08mBOI-PHX
$165
12/4Wed
1 stopDelta
8h 17mPHX-BOI
12/7Sat
1 stopDelta
5h 50mBOI-PHX
$174
7/9Tue
1 stopDelta
7h 03mPHX-GEG
7/10Wed
1 stopDelta
6h 48mGEG-PHX
$178
7/9Tue
1 stopAlaska Airlines
5h 14mPHX-BOI
7/16Tue
1 stopAlaska Airlines
5h 09mBOI-PHX
$198

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Recent one-way flight deals

6/19Wed
1 stopSpirit Airlines
7h 31mPHX-BOI
$48
6/26Wed
1 stopSpirit Airlines
7h 31mPHX-BOI
$49
7/15Mon
nonstopAllegiant Air
2h 03mAZA-BOI
$60
9/19Thu
nonstopAmerican Airlines
2h 07mPHX-BOI
$66
9/3Tue
1 stopDelta
8h 16mPHX-BOI
$78
7/30Tue
nonstopAmerican Airlines
2h 35mPHX-GEG
$80
7/20Sat
1 stopDelta
7h 03mPHX-GEG
$89
7/1Mon
nonstopAllegiant Air
2h 05mAZA-BOI
$91
7/13Sat
1 stop
10h 37mPHX-GEG
$93
7/15Mon
3 stops
34h 30mAZA-BOI
$162

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Last minute flights from Phoenix to Idaho

Last minute flight, train and bus deals

6/13Thu
multi-stopSpirit Airlines
7h 33mPHX-BOI
6/18Tue
multi-stopSpirit Airlines
14h 36mBOI-PHX
$215
6/13Thu
multi-stopSpirit Airlines
7h 33mPHX-BOI
6/19Wed
multi-stopSpirit Airlines
14h 47mBOI-PHX
$222
6/14Fri
nonstopAllegiant Air
2h 05mAZA-BOI
6/21Fri
nonstopAllegiant Air
2h 07mBOI-AZA
$316
6/13Thu
multi-stop
7h 33mPHX-BOI
6/28Fri
nonstop
2h 09mBOI-PHX
$369
6/16Sun
multi-stop
29h 44mPHX-BOI
6/17Mon
multi-stop
13h 13mBOI-PHX
$373
6/14Fri
nonstopAllegiant Air
2h 05mAZA-BOI
6/17Mon
nonstopAllegiant Air
2h 07mBOI-AZA
$385
6/13Thu
multi-stopAlaska Airlines
6h 23mPHX-GEG
6/18Tue
multi-stopAlaska Airlines
6h 08mGEG-PHX
$386
6/15Sat
nonstopAmerican Airlines
2h 43mPHX-GEG
6/18Tue
nonstopAmerican Airlines
2h 38mGEG-PHX
$395
6/12Wed
nonstopAmerican Airlines
2h 43mPHX-GEG
6/17Mon
nonstopAmerican Airlines
2h 39mGEG-PHX
$414
6/16Sun
nonstopAlaska Airlines
2h 09mPHX-BOI
6/17Mon
nonstopAlaska Airlines
2h 09mBOI-PHX
$415

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Flights to Idaho

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