$56+ Cheap flights from Phoenix to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Aug 2 — Aug 91
Round-trip
1 adult, Economy
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Cheapest flights from Phoenix to IdahoExplore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.
Explore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:58 pm
PHX
- IDA
1 stop17h 07m
Multiple Airlines
Mon 8/1010:54 pm
IDA
- PHX
1 stop15h 05m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:30 pm
PHX
- IDA
1 stop11h 17m
Multiple Airlines
Mon 8/245:33 pm
IDA
- PHX
1 stop20h 26m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:20 pm
PHX
- IDA
1 stop8h 44m
Multiple Airlines
Fri 8/285:08 pm
IDA
- PHX
1 stop20h 40m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Mon 7/272:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$260
This Expedia deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:11 am
PHX
- BOI
1 stop5h 35m
Multiple Airlines
Sun 8/2312:24 pm
BOI
- PHX
1 stop12h 15m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$261
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:26 pm
PHX
- BOI
Nonstop2h 14m
American Airlines
Wed 8/198:01 am
BOI
- PHX
Nonstop2h 22m
American Airlines
Deal found 6/30![American Airlines logo]()
$262
This Vliegwinkel deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:02 am
PHX
- BOI
1 stop8h 29m
Alaska Airlines
Sun 8/234:17 pm
BOI
- PHX
1 stop6h 43m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:08 am
PHX
- BOI
1 stop12h 12m
Alaska Airlines
Sat 9/122:16 pm
BOI
- PHX
1 stop6h 32m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$265
This Expedia deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Thu 8/62:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$266
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:30 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Sun 8/308:03 am
BOI
- PHX
1 stop5h 59m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$267
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/14:05 pm
PHX
- GEG
2 stops8h 05m
Southwest
Mon 8/312:20 pm
GEG
- PHX
2 stops7h 35m
Southwest
Deal found 7/3![Southwest logo]()
$267
This Frontier deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/187:05 am
PHX
- BOI
1 stop6h 52m
Frontier
Sun 9/2012:59 pm
BOI
- PHX
1 stop5h 41m
Frontier
Deal found 6/30![Frontier logo]()
$268
Best flights from Phoenix to IdahoDiscover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2026.
Discover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 3, 2026.
This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:30 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Sun 8/305:52 pm
BOI
- PHX
1 stop6h 46m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$267
This Delta deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:20 pm
PHX
- BOI
1 stop3h 39m
Delta
Sun 8/301:06 pm
BOI
- PHX
1 stop6h 01m
Delta
Deal found 6/30![Delta logo]()
$277
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/93:00 pm
PHX
- BOI
2 stops6h 15m
Southwest
Wed 9/1611:30 am
BOI
- PHX
2 stops7h 45m
Southwest
Deal found 6/28![Southwest logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/208:50 am
AZA
- BOI
Nonstop2h 11m
Allegiant Air
Mon 11/301:40 pm
BOI
- AZA
1 stop9h 53m
Allegiant Air
Deal found 7/2![Allegiant Air logo]()
$327
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/191:16 pm
PHX
- SUN
1 stop7h 35m
United Airlines
Fri 7/241:57 pm
SUN
- PHX
1 stop5h 02m
United Airlines
Deal found 7/2![United Airlines logo]()
$401
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/209:30 am
AZA
- BOI
2 stops8h 28m
Multiple Airlines
Mon 11/303:29 pm
BOI
- AZA
Nonstop2h 07m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$545
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/86:00 am
PHX
- WYS
1 stop3h 46m
Delta
Mon 8/171:09 pm
WYS
- PHX
1 stop3h 48m
Delta
Deal found 7/3![Delta logo]()
$293
This Alaska Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:30 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Mon 9/77:20 am
BOI
- PHX
1 stop16h 13m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$293
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/227:35 am
PHX
- BOI
2 stops5h 55m
Southwest
Sun 8/234:45 pm
BOI
- PHX
1 stop5h 25m
Southwest
Deal found 7/2![Southwest logo]()
$295
This Alaska Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:00 am
PHX
- GEG
1 stop15h 49m
Alaska Airlines
Thu 9/102:02 pm
GEG
- PHX
2 stops8h 25m
Alaska Airlines
Deal found 7/1![Alaska Airlines logo]()
$294
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/3010:45 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Thu 8/64:55 pm
BOI
- PHX
Nonstop2h 15m
Southwest
Deal found 6/30![Southwest logo]()
$305
This Delta deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Mon 8/173:25 pm
SUN
- PHX
1 stop3h 42m
Delta
Deal found 6/29![Delta logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/198:30 am
AZA
- BOI
1 stop6h 20m
Allegiant Air
Mon 11/303:29 pm
BOI
- AZA
Nonstop2h 07m
Allegiant Air
Deal found 7/2![Allegiant Air logo]()
$344
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/213:10 pm
PHX
- GEG
2 stops7h 00m
Southwest
Fri 8/283:40 pm
GEG
- PHX
1 stop6h 30m
Southwest
Deal found 7/2![Southwest logo]()
$307
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:11 am
PHX
- BOI
2 stops14h 22m
Alaska Airlines
Wed 8/58:00 pm
BOI
- PHX
1 stop17h 23m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$308
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:10 am
PHX
- BOI
2 stops8h 00m
Southwest
Mon 8/103:45 pm
BOI
- PHX
1 stop5h 45m
Southwest
Deal found 7/2![Southwest logo]()
$308
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/85:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Sat 8/153:25 pm
SUN
- PHX
1 stop3h 27m
Delta
Deal found 6/28![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/107:08 am
PHX
- BOI
2 stops14h 17m
Alaska Airlines
Sun 9/136:23 am
BOI
- PHX
1 stop7h 39m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$315
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/176:00 am
PHX
- JAC
1 stop5h 15m
Delta
Fri 8/211:10 pm
JAC
- PHX
1 stop3h 47m
Delta
Deal found 7/1![Delta logo]()
$344
This Alaska Airlines deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:23 am
PHX
- SUN
1 stop6h 38m
Alaska Airlines
Fri 8/1410:20 am
SUN
- PHX
1 stop7h 25m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:25 pm
PHX
- GEG
Nonstop2h 30m
Southwest
Sun 8/237:05 am
GEG
- PHX
Nonstop2h 40m
Southwest
Deal found 6/28![Southwest logo]()
$345
This United Airlines deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/256:00 am
PHX
- WYS
1 stop6h 20m
United Airlines
Sat 8/295:45 pm
WYS
- PHX
1 stop17h 49m
United Airlines
Deal found 6/29![United Airlines logo]()
$508
This Delta deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:51 am
PHX
- JAC
1 stop6h 06m
Delta
Mon 8/177:40 am
JAC
- PHX
1 stop5h 26m
Delta
Deal found 7/1![Delta logo]()
$363
This United Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
PHX
- WYS
1 stop6h 21m
United Airlines
Fri 8/284:44 pm
WYS
- PHX
2 stops21h 21m
United Airlines
Deal found 6/30![United Airlines logo]()
$527
This Alaska Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/911:23 am
PHX
- SUN
1 stop6h 38m
Alaska Airlines
Sat 8/1510:20 am
SUN
- PHX
1 stop7h 25m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$365
This Southwest deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/17:50 pm
PHX
- GEG
Nonstop2h 40m
Southwest
Sun 10/46:25 pm
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 6/30![Southwest logo]()
$366
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/241:20 pm
PHX
- PIH
1 stop4h 04m
Delta
Sun 9/277:00 pm
PIH
- PHX
1 stop5h 46m
Delta
Deal found 7/2![Delta logo]()
$377
This United Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:00 am
PHX
- WYS
1 stop6h 32m
United Airlines
Fri 7/245:45 pm
WYS
- PHX
1 stop16h 15m
United Airlines
Deal found 7/2![United Airlines logo]()
$540
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:47 pm
AZA
- BOI
2 stops19h 30m
Multiple Airlines
Sun 7/193:07 pm
BOI
- AZA
1 stop5h 22m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$669
This Delta deal was found by Cheapflights users on 6/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/75:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Sat 8/153:25 pm
SUN
- PHX
1 stop3h 27m
Delta
Deal found 6/28![Delta logo]()
$379
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated July 3, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated July 3, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/204:48 pm
PHX
- BOI
1 stop18h 41m
Frontier
Thu 7/231:24 pm
BOI
- PHX
1 stop21h 47m
Frontier
Deal found 7/2![Frontier logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Mon 7/272:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$260
This Expedia deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/306:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Thu 8/62:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$266
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:45 am
PHX
- IDA
1 stop7h 15m
Multiple Airlines
Fri 8/710:54 pm
IDA
- PHX
1 stop25h 11m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$239
This Southwest deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/14:05 pm
PHX
- GEG
2 stops8h 05m
Southwest
Mon 8/312:20 pm
GEG
- PHX
2 stops7h 35m
Southwest
Deal found 7/3![Southwest logo]()
$267
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/69:58 pm
PHX
- IDA
1 stop17h 07m
Multiple Airlines
Mon 8/1010:54 pm
IDA
- PHX
1 stop15h 05m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:20 pm
PHX
- IDA
1 stop8h 44m
Multiple Airlines
Fri 8/285:08 pm
IDA
- PHX
1 stop20h 40m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$241
This American Airlines deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/147:26 pm
PHX
- BOI
Nonstop2h 14m
American Airlines
Wed 8/198:01 am
BOI
- PHX
Nonstop2h 22m
American Airlines
Deal found 6/30![American Airlines logo]()
$262
This Expedia deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:11 am
PHX
- BOI
1 stop5h 35m
Multiple Airlines
Sun 8/2312:24 pm
BOI
- PHX
1 stop12h 15m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:30 pm
PHX
- IDA
1 stop11h 17m
Multiple Airlines
Mon 8/245:33 pm
IDA
- PHX
1 stop20h 26m
Multiple Airlines
Deal found 6/29![Multiple Airlines logo]()
$225
This Vliegwinkel deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:02 am
PHX
- BOI
1 stop8h 29m
Alaska Airlines
Sun 8/234:17 pm
BOI
- PHX
1 stop6h 43m
Alaska Airlines
Deal found 6/30![Alaska Airlines logo]()
$263
This Alaska Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/275:30 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Sun 8/308:03 am
BOI
- PHX
1 stop5h 59m
Alaska Airlines
Deal found 7/3![Alaska Airlines logo]()
$267
One-way flights from Phoenix to IdahoSearch for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated July 3, 2026.
This CheapOair deal was found by Cheapflights users on 6/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/309:31 am
AZA
- BOI
Nonstop2h 09m
Allegiant Air
Deal found 6/29![Allegiant Air logo]()
$56
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/262:04 pm
PHX
- GEG
1 stop19h 18m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:09 pm
PHX
- GEG
1 stop11h 10m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:55 pm
PHX
- GEG
1 stop16h 39m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2910:09 pm
PHX
- GEG
1 stop11h 13m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/129:58 pm
PHX
- GEG
1 stop22h 26m
Multiple Airlines
Deal found 7/2![Multiple Airlines logo]()
$98
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/279:03 am
PHX
- IDA
1 stop24h 19m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$111
This Kiwi.com deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:55 pm
PHX
- BOI
1 stop15h 02m
Frontier
Deal found 7/2![Frontier logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:55 pm
PHX
- IDA
1 stop16h 05m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$115
This Kiwi.com deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/299:58 pm
PHX
- GEG
1 stop22h 03m
Multiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$118
This Alaska Airlines deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:37 pm
PHX
- BOI
Nonstop2h 08m
Alaska Airlines
Deal found 7/2![Alaska Airlines logo]()
$119
This Southwest deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/128:25 pm
PHX
- GEG
Nonstop2h 30m
Southwest
Deal found 7/2![Southwest logo]()
$119
Find flight deals from Phoenix to Idaho
Keep the following information in mind while searching for Phoenix to Idaho flight deals. Data was last updated July 3, 2026.
Round-trip from | $184 (Kiwi.com) |
|---|---|
One-way from | $56 (CheapOair) |
Popular in | June |
Cheapest in | January |
Average price | $306 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2026.
Use the filters below to find and compare flights from Phoenix to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 8/27
5:30 pm-8:42 pm
Nonstop2h 12m
Boise Air Term. Gowen Fld
Sun 8/30
5:52 pm-11:38 pm
1 stop6h 46m
$267
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 8/27
7:20 pm-11:59 pm
1 stop3h 39m
Boise Air Term. Gowen Fld
Sun 8/30
1:06 pm-6:07 pm
1 stop6h 01m
$277
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 9/9
3:00 pm-10:15 pm
2 stops6h 15m
Boise Air Term. Gowen Fld
Wed 9/16
11:30 am-6:15 pm
2 stops7h 45m
$292
PhoenixWest Yellowstone
PHX - WYS
PHXWYS
Phoenix Sky Harbor Intl
Sat 8/8
6:00 am-10:46 am
1 stop3h 46m
West Yellowstone
Mon 8/17
1:09 pm-3:57 pm
1 stop3h 48m
$293
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 9/3
5:30 pm-8:42 pm
Nonstop2h 12m
Boise Air Term. Gowen Fld
Mon 9/7
7:20 am-10:33 pm
1 stop16h 13m
$293
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Mon 8/31
7:00 am-10:49 pm
1 stop15h 49m
Spokane
Thu 9/10
2:02 pm-10:27 pm
2 stops8h 25m
$294
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 8/22
7:35 am-2:30 pm
2 stops5h 55m
Boise Air Term. Gowen Fld
Sun 8/23
4:45 pm-9:10 pm
1 stop5h 25m
$295
Quickest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 7/30
10:45 pm-1:50 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Thu 8/6
4:55 pm-6:10 pm
Nonstop2h 15m
$305
PhoenixHailey
PHX - SUN
PHXSUN
Phoenix Sky Harbor Intl
Sat 8/8
5:10 pm-10:08 pm
1 stop3h 58m
Hailey Sun Valley-Friedman
Mon 8/17
3:25 pm-6:07 pm
1 stop3h 42m
$307
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Fri 8/21
3:10 pm-10:10 pm
2 stops7h 00m
Spokane
Fri 8/28
3:40 pm-10:10 pm
1 stop6h 30m
$307
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Phoenix with our price prediction graph.
PHX-BOI
AZA-BOI
PHX-SUN
PHX-WYS
PHX-GEG
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Phoenix to Idaho
PH1-USID
PHX-BOI
AZA-BOI
PHX-SUN
PHX-WYS
What is the cheapest month to book a flight from Phoenix to Idaho?
Currently, August is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $78). Flying from Phoenix to Idaho in March is currently the most expensive (average of $154). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHX to ID?
Find hourly flight availability from Phoenix to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2026.
It’s typically best to fly out from Phoenix to Idaho in the morning. Doing so could potentially save you 37% on the flight price compared to flying in the evening, which is usually more expensive.
How much does it cost to fly round-trip from Phoenix to Idaho?
How far ahead should I book a flight from Phoenix to Idaho?
Booking 77 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Phoenix to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Phoenix to Idaho. Price data was last updated on June 27, 2026.
Travelers seeking maximum savings on their Phoenix to Idaho flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated July 3, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines,Southwest, andDelta from Phoenix to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Boarding
8.1
Comfort
7.8
Crew
8.5
Food
7.1
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
4.0
OkayAnonymous,Jun 2026
SEA - RNO
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Phoenix to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Idaho by cabin class
Find flights from Phoenix to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Phoenix and Idaho flights
Browse other Phoenix and Idaho flight options. Last updated on July 3, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Phoenix to Idaho flights
Consider these flights traveling from Phoenix to Idaho.
Top 7 airlines flying from Phoenix to Idaho
Discover the top 7 airlines that operate flights from Phoenix to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$416 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$193 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$137 | Average$207 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$268 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$276 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$166 | Average$368 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$417 | FlexibilityNo cancel fee | On-time69% |