$90+ 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 5/21. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
May 29 — Jun 51
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 April 29, 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 April 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/410:27 pm
PHX
- IDA
1 stop16h 41m
Multiple Airlines
Mon 6/1510:56 pm
IDA
- PHX
1 stop14h 59m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$158
This Frontier deal was found by Cheapflights users on 4/27. 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.
Mon 6/15:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Wed 6/312:33 pm
GEG
- PHX
1 stop10h 56m
Frontier
Deal found 4/27![Frontier logo]()
$200
This Expedia deal was found by Cheapflights users on 4/26. 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.
Wed 5/206:00 am
PHX
- BOI
1 stop8h 34m
Multiple Airlines
Sun 5/241:25 pm
BOI
- PHX
1 stop11h 04m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$204
This Frontier deal was found by Cheapflights users on 4/25. 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.
Thu 6/45:15 am
PHX
- BOI
1 stop6h 23m
Frontier
Thu 6/111:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/25![Frontier logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 4/23. 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 6/29:00 am
PHX
- BOI
1 stop8h 14m
Alaska Airlines
Wed 6/36:08 pm
BOI
- PHX
Nonstop2h 09m
Alaska Airlines
Deal found 4/23![Alaska Airlines logo]()
$208
This Expedia deal was found by Cheapflights users on 4/25. 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 6/45:15 am
PHX
- BOI
1 stop6h 23m
Multiple Airlines
Mon 6/86:08 pm
BOI
- PHX
Nonstop2h 09m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$209
This Expedia deal was found by Cheapflights users on 4/24. 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.
Fri 6/57:59 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Sun 6/71:33 pm
BOI
- PHX
1 stop19h 11m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$214
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/287:40 am
PHX
- IDA
1 stop26h 10m
Multiple Airlines
Mon 6/14:43 pm
IDA
- PHX
1 stop19h 40m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$217
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:17 pm
PHX
- GEG
1 stop19h 21m
Frontier
Mon 5/1812:33 pm
GEG
- PHX
1 stop8h 37m
Frontier
Deal found 4/27![Frontier logo]()
$218
This Expedia deal was found by Cheapflights users on 4/27. 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 5/285:15 am
PHX
- BOI
1 stop6h 15m
Multiple Airlines
Wed 6/36:35 am
BOI
- PHX
1 stop7h 10m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$219
This Frontier deal was found by Cheapflights users on 4/26. 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.
Mon 5/115:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Fri 5/1512:33 pm
GEG
- PHX
1 stop8h 37m
Frontier
Deal found 4/26![Frontier logo]()
$221
This Expedia deal was found by Cheapflights users on 4/25. 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.
Fri 5/227:59 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Sun 5/241:25 pm
BOI
- PHX
1 stop19h 19m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$223
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 April 29, 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 April 29, 2026.
This Delta deal was found by Cheapflights users on 4/26. 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 5/306:05 am
PHX
- BOI
1 stop5h 06m
Delta
Wed 6/38:58 am
BOI
- PHX
1 stop8h 37m
Delta
Deal found 4/26![Delta logo]()
$237
This Southwest deal was found by Cheapflights users on 4/24. 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.
Mon 6/810:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Wed 6/105:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/24![Southwest logo]()
$247
This United Airlines deal was found by Cheapflights users on 4/24. 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.
Thu 7/1611:12 am
PHX
- BOI
1 stop4h 32m
United Airlines
Mon 7/205:46 pm
BOI
- PHX
1 stop5h 13m
United Airlines
Deal found 4/24![United Airlines logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 5/197:59 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Mon 5/256:08 pm
BOI
- PHX
Nonstop2h 09m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$302
This Orbitz deal was found by Cheapflights users on 4/28. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/75:15 am
PHX
- BOI
1 stop6h 12m
Multiple Airlines
Sat 5/236:08 pm
BOI
- PHX
Nonstop2h 09m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$316
This Kiwi.com deal was found by Cheapflights users on 4/26. 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.
Sun 5/319:00 am
AZA
- BOI
1 stop5h 10m
Allegiant Air
Sun 6/73:07 pm
BOI
- AZA
1 stop5h 17m
Allegiant Air
Deal found 4/26![Allegiant Air logo]()
$354
This Delta deal was found by Cheapflights users on 4/27. 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.
Tue 5/195:16 pm
PHX
- BOI
1 stop5h 48m
Delta
Mon 5/258:56 am
BOI
- PHX
1 stop7h 03m
Delta
Deal found 4/27![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 4/28. 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.
Tue 6/95:10 pm
PHX
- GEG
1 stop6h 35m
Southwest
Tue 6/1612:25 pm
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 4/28![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 4/25. 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 6/43:55 pm
PHX
- BOI
1 stop5h 16m
Delta
Sat 6/67:05 am
BOI
- PHX
1 stop5h 20m
Delta
Deal found 4/25![Delta logo]()
$247
This Southwest deal was found by Cheapflights users on 4/28. 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 6/179:35 pm
PHX
- GEG
Nonstop2h 30m
Southwest
Tue 6/235:00 am
GEG
- PHX
1 stop5h 15m
Southwest
Deal found 4/28![Southwest logo]()
$247
This Delta deal was found by Cheapflights users on 4/24. 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 5/285:16 pm
PHX
- BOI
1 stop3h 28m
Delta
Fri 5/2912:55 pm
BOI
- PHX
1 stop6h 10m
Delta
Deal found 4/24![Delta logo]()
$257
This Expedia deal was found by Cheapflights users on 4/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/136:53 pm
PHX
- SUN
1 stop13h 45m
Alaska Airlines
Thu 7/1610:20 am
SUN
- PHX
1 stop7h 25m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$321
This Southwest deal was found by Cheapflights users on 4/25. 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 6/1210:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Wed 6/244:20 pm
BOI
- PHX
Nonstop2h 15m
Southwest
Deal found 4/25![Southwest logo]()
$276
This Delta deal was found by Cheapflights users on 4/25. 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 6/43:55 pm
PHX
- BOI
1 stop5h 16m
Delta
Wed 6/108:42 am
BOI
- PHX
1 stop7h 11m
Delta
Deal found 4/25![Delta logo]()
$267
This United Airlines deal was found by Cheapflights users on 4/24. 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 5/96:00 am
PHX
- WYS
1 stop6h 28m
United Airlines
Wed 5/132:03 pm
WYS
- PHX
1 stop5h 59m
United Airlines
Deal found 4/24![United Airlines logo]()
$358
This Alaska Airlines deal was found by Cheapflights users on 4/28. 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 6/18:30 pm
PHX
- GEG
Nonstop2h 44m
Alaska Airlines
Wed 6/33:20 pm
GEG
- PHX
Nonstop2h 42m
Alaska Airlines
Deal found 4/28![Alaska Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sun 5/249:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Sat 5/302:10 pm
BOI
- AZA
2 stops18h 48m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$380
This Delta deal was found by Cheapflights users on 4/28. 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.
Thu 6/45:35 pm
PHX
- BOI
1 stop5h 18m
Delta
Sat 6/136:10 pm
BOI
- PHX
1 stop6h 26m
Delta
Deal found 4/28![Delta logo]()
$267
This Southwest deal was found by Cheapflights users on 4/23. 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 7/155:45 am
PHX
- BOI
2 stops5h 45m
Southwest
Tue 7/286:30 am
BOI
- PHX
2 stops5h 55m
Southwest
Deal found 4/23![Southwest logo]()
$296
This United Airlines deal was found by Cheapflights users on 4/26. 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 6/26:00 am
PHX
- SUN
1 stop6h 47m
United Airlines
Wed 6/32:38 pm
SUN
- PHX
1 stop6h 52m
United Airlines
Deal found 4/26![United Airlines logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sun 5/249:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Thu 5/284:00 pm
BOI
- AZA
2 stops16h 08m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$383
This United Airlines deal was found by Cheapflights users on 4/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
PHX
- SUN
1 stop6h 16m
United Airlines
Thu 7/161:57 pm
SUN
- PHX
2 stops10h 33m
United Airlines
Deal found 4/28![United Airlines logo]()
$378
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 7/141:05 pm
PHX
- GEG
1 stop10h 02m
Alaska Airlines
Fri 7/175:00 am
GEG
- PHX
1 stop4h 49m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$384
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 7/129:45 am
PHX
- JAC
1 stop6h 15m
Delta
Wed 7/156:05 pm
JAC
- PHX
1 stop6h 26m
Delta
Deal found 4/28![Delta logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 4/25. 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.
Sun 5/249:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Sun 5/314:00 pm
BOI
- AZA
2 stops16h 08m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$437
This Alaska Airlines deal was found by Cheapflights users on 4/24. 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.
Sat 6/67:00 am
PHX
- IDA
1 stop5h 17m
Alaska Airlines
Sun 6/76:00 am
IDA
- PHX
1 stop5h 46m
Alaska Airlines
Deal found 4/24![Alaska Airlines logo]()
$401
This Delta deal was found by Cheapflights users on 4/25. 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.
Sun 7/191:20 pm
PHX
- JAC
1 stop5h 17m
Delta
Fri 7/246:05 pm
JAC
- PHX
1 stop6h 26m
Delta
Deal found 4/25![Delta logo]()
$311
This Southwest deal was found by Cheapflights users on 4/24. 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 5/273:35 pm
PHX
- GEG
2 stops7h 10m
Southwest
Sat 5/301:45 pm
GEG
- PHX
1 stop7h 25m
Southwest
Deal found 4/24![Southwest logo]()
$394
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Sat 5/302:10 pm
BOI
- AZA
2 stops18h 48m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$441
This Alaska Airlines deal was found by Cheapflights users on 4/27. 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 7/136:53 pm
PHX
- GEG
1 stop5h 06m
Alaska Airlines
Tue 7/145:00 am
GEG
- PHX
1 stop4h 49m
Alaska Airlines
Deal found 4/27![Alaska Airlines logo]()
$418
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated April 29, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated April 29, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 4/26. 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.
Mon 5/115:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Fri 5/1512:33 pm
GEG
- PHX
1 stop8h 37m
Frontier
Deal found 4/26![Frontier logo]()
$221
This Frontier deal was found by Cheapflights users on 4/28. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/145:15 am
PHX
- BOI
1 stop6h 12m
Frontier
Sun 5/171:22 pm
BOI
- PHX
1 stop11h 07m
Frontier
Deal found 4/28![Frontier logo]()
$201
This Trip.com deal was found by Cheapflights users on 4/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/144:17 pm
PHX
- GEG
1 stop19h 21m
Frontier
Mon 5/1812:33 pm
GEG
- PHX
1 stop8h 37m
Frontier
Deal found 4/27![Frontier logo]()
$218
This Expedia deal was found by Cheapflights users on 4/26. 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.
Wed 5/206:00 am
PHX
- BOI
1 stop8h 34m
Multiple Airlines
Sun 5/241:25 pm
BOI
- PHX
1 stop19h 19m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$204
This Expedia deal was found by Cheapflights users on 4/25. 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.
Fri 5/227:59 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Sun 5/241:25 pm
BOI
- PHX
1 stop19h 19m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$223
This Alaska Airlines deal was found by Cheapflights users on 4/25. 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.
Sat 5/237:59 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Sat 5/306:08 pm
BOI
- PHX
Nonstop2h 09m
Alaska Airlines
Deal found 4/25![Alaska Airlines logo]()
$217
This Expedia deal was found by Cheapflights users on 4/25. 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 5/267:59 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Thu 5/281:25 pm
BOI
- PHX
1 stop21h 40m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$225
This Expedia deal was found by Cheapflights users on 4/25. 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 5/285:15 am
PHX
- BOI
1 stop6h 15m
Multiple Airlines
Mon 6/16:08 pm
BOI
- PHX
Nonstop2h 09m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 4/24. 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 5/287:40 am
PHX
- IDA
1 stop26h 10m
Multiple Airlines
Mon 6/14:43 pm
IDA
- PHX
1 stop19h 40m
Multiple Airlines
Deal found 4/24![Multiple Airlines logo]()
$217
This Expedia deal was found by Cheapflights users on 4/27. 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 5/285:15 am
PHX
- BOI
1 stop6h 15m
Multiple Airlines
Wed 6/36:35 am
BOI
- PHX
1 stop7h 10m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$219
This Southwest deal was found by Cheapflights users on 4/27. 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 5/289:35 am
PHX
- BOI
Nonstop2h 05m
Southwest
Wed 6/36:40 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/27![Southwest logo]()
$227
This Frontier deal was found by Cheapflights users on 4/24. 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 5/295:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Mon 6/112:33 pm
GEG
- PHX
1 stop8h 37m
Frontier
Deal found 4/24![Frontier logo]()
$200
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 April 29, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated April 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/2110:27 pm
PHX
- IDA
1 stop13h 33m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$90
This deal was found by Cheapflights users on 4/27. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/285:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Deal found 4/27![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:27 pm
PHX
- GEG
1 stop21h 28m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:40 am
PHX
- GEG
1 stop12h 15m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$97
This Super.com deal was found by Cheapflights users on 4/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Deal found 4/25![Frontier logo]()
$99
This Super.com deal was found by Cheapflights users on 4/25. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/24:29 pm
PHX
- GEG
1 stop19h 09m
Frontier
Deal found 4/25![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 5/2010:27 pm
PHX
- GEG
1 stop21h 28m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$107
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/217:40 am
PHX
- GEG
1 stop12h 15m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$108
This Alaska Airlines deal was found by Cheapflights users on 4/26. 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 5/267:59 pm
PHX
- BOI
Nonstop2h 12m
Alaska Airlines
Deal found 4/26![Alaska Airlines logo]()
$109
This Super.com deal was found by Cheapflights users on 4/28. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/105:15 am
PHX
- BOI
1 stop6h 12m
Frontier
Deal found 4/28![Frontier logo]()
$110
This Frontier deal was found by Cheapflights users on 4/25. 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.
Sun 6/216:40 am
PHX
- BOI
1 stop4h 50m
Frontier
Deal found 4/25![Frontier logo]()
$115
This Delta deal was found by Cheapflights users on 4/26. 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.
Tue 5/266:05 am
PHX
- BOI
1 stop4h 51m
Delta
Deal found 4/26![Delta 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 April 29, 2026.
Round-trip from | $158 (Kiwi.com) |
|---|---|
One-way from | $90 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $266 |
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 April 29, 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
Sat 5/30
6:05 am-12:11 pm
1 stop5h 06m
Boise Air Term. Gowen Fld
Wed 6/3
8:58 am-4:35 pm
1 stop8h 37m
$237
Quickest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Mon 6/8
10:45 pm-1:45 am
Nonstop2h 00m
Boise Air Term. Gowen Fld
Wed 6/10
5:30 am-6:35 am
Nonstop2h 05m
$247
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 5/19
5:16 pm-12:04 am
1 stop5h 48m
Boise Air Term. Gowen Fld
Mon 5/25
8:56 am-2:59 pm
1 stop7h 03m
$247
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Tue 6/9
5:10 pm-11:45 pm
1 stop6h 35m
Spokane
Tue 6/16
12:25 pm-3:00 pm
Nonstop2h 35m
$247
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 6/4
3:55 pm-10:11 pm
1 stop5h 16m
Boise Air Term. Gowen Fld
Sat 6/6
7:05 am-11:25 am
1 stop5h 20m
$247
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Wed 6/17
9:35 pm-12:05 am
Nonstop2h 30m
Spokane
Tue 6/23
5:00 am-10:15 am
1 stop5h 15m
$247
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 7/16
11:12 am-4:44 pm
1 stop4h 32m
Boise Air Term. Gowen Fld
Mon 7/20
5:46 pm-9:59 pm
1 stop5h 13m
$257
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 5/28
5:16 pm-9:44 pm
1 stop3h 28m
Boise Air Term. Gowen Fld
Fri 5/29
12:55 pm-6:05 pm
1 stop6h 10m
$257
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 6/4
3:55 pm-10:11 pm
1 stop5h 16m
Boise Air Term. Gowen Fld
Wed 6/10
8:42 am-2:53 pm
1 stop7h 11m
$267
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 6/4
5:35 pm-11:53 pm
1 stop5h 18m
Boise Air Term. Gowen Fld
Sat 6/13
6:10 pm-11:36 pm
1 stop6h 26m
$267
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
PHX-GEG
PHX-SUN
AZA-BOI
PHX-TWF
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
PHX-GEG
PHX-SUN
AZA-BOI
How far ahead should I book a flight from Phoenix to Idaho?
Booking 86 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 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 January is currently the most expensive (average of $122). 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 April 29, 2026.
It’s typically best to fly out from Phoenix to Idaho in the afternoon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.
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 April 25, 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.
How much does it cost to fly round-trip from Phoenix to Idaho?
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 April 29, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, 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.
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Boarding
8.1
Overall
8.0
Entertainment
7.5
Comfort
8.0
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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
See prices for flight routes from nearby airports that may be better suited for you.
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 April 29, 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 April 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$402 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$165 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$124 | Average$198 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$246 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$262 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$358 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$456 | FlexibilityNo cancel fee | On-time69% |