$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 10/5. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Aug 13 — Aug 201
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 14, 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 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 9/1710:55 pm
PHX
- IDA
1 stop12h 09m
Multiple Airlines
Mon 9/216:21 pm
IDA
- PHX
1 stop17h 28m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Mon 8/107:45 am
PHX
- IDA
1 stop7h 20m
Multiple Airlines
Mon 8/1710:54 pm
IDA
- PHX
1 stop15h 05m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/77:45 am
PHX
- IDA
1 stop7h 20m
Multiple Airlines
Fri 8/1410:54 pm
IDA
- PHX
1 stop25h 11m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$246
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 8/302:29 pm
PHX
- BOI
1 stop8h 15m
Alaska Airlines
Mon 9/145:42 pm
BOI
- PHX
Nonstop2h 13m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$246
This Expedia deal was found by Cheapflights users on 7/10. 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 8/285:30 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Sun 8/3012:24 pm
BOI
- PHX
1 stop22h 47m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$247
This Frontier deal was found by Cheapflights users on 7/9. 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 stop11h 50m
Frontier
Deal found 7/9![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Mon 8/36:53 pm
PHX
- BOI
1 stop16h 36m
Frontier
Tue 8/111:24 pm
BOI
- PHX
1 stop11h 03m
Frontier
Deal found 7/11![Frontier logo]()
$249
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 8/186:53 pm
PHX
- BOI
1 stop24h 27m
Alaska Airlines
Wed 8/263:30 pm
BOI
- PHX
Nonstop2h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$250
This Southwest deal was found by Cheapflights users on 7/10. 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 8/18:55 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Wed 8/511:30 am
BOI
- PHX
2 stops7h 45m
Southwest
Deal found 7/10![Southwest logo]()
$251
This Southwest deal was found by Cheapflights users on 7/11. 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 9/810:35 am
PHX
- BOI
Nonstop2h 05m
Southwest
Sat 9/1211:35 am
BOI
- PHX
2 stops8h 20m
Southwest
Deal found 7/11![Southwest logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/96:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Tue 8/112:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/59:58 pm
PHX
- BOI
2 stops13h 31m
Frontier
Tue 8/111:24 pm
BOI
- PHX
1 stop11h 03m
Frontier
Deal found 7/11![Frontier logo]()
$254
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 14, 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 14, 2026.
This Southwest deal was found by Cheapflights users on 7/12. 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 10/2310:35 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Mon 10/265:40 am
BOI
- PHX
Nonstop2h 00m
Southwest
Deal found 7/12![Southwest logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 7/13. 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 10/2011:31 am
PHX
- BOI
1 stop5h 46m
Alaska Airlines
Sat 10/247:41 am
BOI
- PHX
1 stop7h 22m
Alaska Airlines
Deal found 7/13![Alaska Airlines logo]()
$257
This Delta deal was found by Cheapflights users on 7/13. 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 8/285:10 pm
PHX
- BOI
1 stop5h 49m
Delta
Wed 9/26:45 pm
BOI
- PHX
1 stop4h 26m
Delta
Deal found 7/13![Delta logo]()
$267
This KAYAK deal was found by Cheapflights users on 7/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/273:41 pm
PHX
- BOI
1 stop7h 05m
United Airlines
Sat 10/312:39 pm
BOI
- PHX
1 stop5h 18m
United Airlines
Deal found 7/10![United Airlines logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 7/10. 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.
Tue 9/299:28 am
AZA
- BOI
3 stops49h 36m
Multiple Airlines
Mon 10/51:30 pm
BOI
- AZA
Nonstop2h 05m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$282
This Southwest deal was found by Cheapflights users on 7/13. 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 8/257:10 am
PHX
- BOI
2 stops8h 00m
Southwest
Wed 8/262:25 pm
BOI
- PHX
1 stop6h 55m
Southwest
Deal found 7/13![Southwest logo]()
$262
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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
Tue 9/87:20 am
BOI
- PHX
1 stop5h 11m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$272
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/176:00 am
PHX
- SUN
1 stop6h 54m
United Airlines
Thu 8/272:50 pm
SUN
- PHX
1 stop6h 40m
United Airlines
Deal found 7/13![United Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 7/9. 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 8/36:15 pm
PHX
- BOI
1 stop5h 10m
Southwest
Fri 8/77:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 7/9![Southwest logo]()
$271
This Delta deal was found by Cheapflights users on 7/13. 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 8/249:51 am
PHX
- SUN
1 stop3h 52m
Delta
Fri 9/41:06 pm
SUN
- PHX
1 stop3h 51m
Delta
Deal found 7/13![Delta logo]()
$305
This Alaska Airlines deal was found by Cheapflights users on 7/9. 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 9/312:13 pm
PHX
- BOI
1 stop7h 07m
Alaska Airlines
Sun 9/67:20 am
BOI
- PHX
1 stop5h 11m
Alaska Airlines
Deal found 7/9![Alaska Airlines logo]()
$281
This deal was found by Cheapflights users on 7/11. 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.
Tue 8/115:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Thu 8/133:25 pm
SUN
- PHX
1 stop3h 42m
Delta
Deal found 7/11![Delta logo]()
$305
This United Airlines deal was found by Cheapflights users on 7/13. 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 9/286:00 am
PHX
- JAC
1 stop5h 44m
United Airlines
Wed 10/74:28 pm
JAC
- PHX
1 stop6h 31m
United Airlines
Deal found 7/13![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 9/107:49 pm
PHX
- GEG
1 stop28h 04m
Alaska Airlines
Sun 9/136:00 am
GEG
- PHX
1 stop16h 27m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$284
This Southwest deal was found by Cheapflights users on 7/11. 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 8/48:20 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Tue 8/113:40 pm
BOI
- PHX
Nonstop2h 15m
Southwest
Deal found 7/11![Southwest logo]()
$287
This United Airlines deal was found by Cheapflights users on 7/11. 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 10/118:00 am
PHX
- JAC
1 stop4h 45m
United Airlines
Thu 10/158:00 am
JAC
- PHX
1 stop8h 00m
United Airlines
Deal found 7/11![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 7/10![Alaska Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/38:20 am
AZA
- BOI
1 stop7h 08m
Multiple Airlines
Sun 9/133:52 pm
BOI
- AZA
2 stops29h 33m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$393
This Delta deal was found by Cheapflights users on 7/9. 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 8/205:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Tue 8/251:06 pm
SUN
- PHX
1 stop3h 58m
Delta
Deal found 7/9![Delta logo]()
$342
This United Airlines deal was found by Cheapflights users on 7/9. 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 8/161:34 pm
PHX
- JAC
1 stop6h 06m
United Airlines
Thu 8/207:00 am
JAC
- PHX
1 stop4h 37m
United Airlines
Deal found 7/9![United Airlines logo]()
$311
This Southwest deal was found by Cheapflights users on 7/13. 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 8/129:05 am
PHX
- GEG
1 stop6h 00m
Southwest
Wed 8/197:30 am
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 7/13![Southwest logo]()
$317
This Delta deal was found by Cheapflights users on 7/9. 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 9/45:10 pm
PHX
- SUN
1 stop3h 58m
Delta
Sun 9/67:40 am
SUN
- PHX
1 stop5h 26m
Delta
Deal found 7/9![Delta logo]()
$342
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/308:20 am
AZA
- BOI
1 stop7h 08m
Multiple Airlines
Sun 9/133:38 pm
BOI
- AZA
2 stops23h 48m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$420
This United Airlines deal was found by Cheapflights users on 7/14. 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 8/131:34 pm
PHX
- JAC
1 stop6h 06m
United Airlines
Thu 8/204:25 pm
JAC
- PHX
1 stop6h 44m
United Airlines
Deal found 7/14![United Airlines logo]()
$323
This Southwest deal was found by Cheapflights users on 7/9. 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 8/223:50 pm
PHX
- GEG
Nonstop2h 30m
Southwest
Mon 8/244:20 pm
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 7/9![Southwest logo]()
$324
This Delta deal was found by Cheapflights users on 7/9. 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 9/2410:37 am
PHX
- PIH
2 stops6h 47m
Delta
Sun 9/277:00 pm
PIH
- PHX
1 stop5h 46m
Delta
Deal found 7/9![Delta logo]()
$346
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/29:15 am
AZA
- BOI
2 stops50h 14m
Multiple Airlines
Sun 8/93:14 pm
BOI
- AZA
1 stop5h 15m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$422
This United Airlines deal was found by Cheapflights users on 7/9. 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 9/243:30 pm
PHX
- JAC
1 stop4h 16m
United Airlines
Fri 9/258:00 am
JAC
- PHX
1 stop8h 00m
United Airlines
Deal found 7/9![United Airlines logo]()
$331
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 8/51:05 pm
PHX
- GEG
2 stops7h 51m
Alaska Airlines
Fri 8/75:00 am
GEG
- PHX
1 stop4h 49m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$367
This Delta deal was found by Cheapflights users on 7/12. 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 8/195:42 pm
PHX
- LWS
1 stop5h 17m
Delta
Wed 8/269:23 am
LWS
- PHX
1 stop7h 18m
Delta
Deal found 7/12![Delta logo]()
$346
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated July 14, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated July 14, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 7/10. 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 8/18:55 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Wed 8/511:30 am
BOI
- PHX
2 stops7h 45m
Southwest
Deal found 7/10![Southwest logo]()
$251
This Delta deal was found by Cheapflights users on 7/10. 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 8/15:15 pm
PHX
- BOI
1 stop4h 26m
Delta
Wed 8/55:00 pm
BOI
- PHX
1 stop7h 00m
Delta
Deal found 7/10![Delta logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 7/11. 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.
Mon 8/36:53 pm
PHX
- BOI
1 stop16h 36m
Frontier
Tue 8/111:24 pm
BOI
- PHX
1 stop11h 03m
Frontier
Deal found 7/11![Frontier logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/59:58 pm
PHX
- BOI
2 stops13h 31m
Frontier
Tue 8/111:24 pm
BOI
- PHX
1 stop11h 03m
Frontier
Deal found 7/11![Frontier logo]()
$254
This Super.com deal was found by Cheapflights users on 7/11. 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.
Thu 8/66:40 am
PHX
- BOI
1 stop4h 49m
Frontier
Sun 8/91:24 pm
BOI
- PHX
1 stop11h 03m
Frontier
Deal found 7/11![Frontier logo]()
$248
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 8/77:45 am
PHX
- IDA
1 stop7h 20m
Multiple Airlines
Fri 8/1410:54 pm
IDA
- PHX
1 stop25h 11m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$246
This Kiwi.com deal was found by Cheapflights users on 7/11. 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 8/96:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Tue 8/112:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/13. 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.
Mon 8/107:45 am
PHX
- IDA
1 stop7h 20m
Multiple Airlines
Mon 8/1710:54 pm
IDA
- PHX
1 stop15h 05m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 8/139:58 pm
PHX
- BOI
2 stops38h 26m
Multiple Airlines
Thu 8/2012:24 pm
BOI
- PHX
1 stop20h 16m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$252
This Alaska Airlines deal was found by Cheapflights users on 7/12. 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 8/186:53 pm
PHX
- BOI
1 stop24h 27m
Alaska Airlines
Wed 8/263:30 pm
BOI
- PHX
Nonstop2h 18m
Alaska Airlines
Deal found 7/12![Alaska Airlines logo]()
$250
This Expedia deal was found by Cheapflights users on 7/10. 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 8/285:30 pm
PHX
- BOI
Nonstop2h 12m
Multiple Airlines
Sun 8/3012:24 pm
BOI
- PHX
1 stop22h 47m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$247
This Alaska Airlines deal was found by Cheapflights users on 7/10. 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 8/302:29 pm
PHX
- BOI
1 stop8h 15m
Alaska Airlines
Mon 9/145:42 pm
BOI
- PHX
Nonstop2h 13m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$246
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 14, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated July 14, 2026.
This Booking.com deal was found by Cheapflights users on 7/10. 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 10/59:31 am
AZA
- BOI
Nonstop2h 09m
Allegiant Air
Deal found 7/10![Allegiant Air logo]()
$56
This CheapOair deal was found by Cheapflights users on 7/14. 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.
Mon 10/269:31 am
AZA
- BOI
Nonstop2h 09m
Allegiant Air
Deal found 7/14![Allegiant Air logo]()
$66
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 9/1610:55 pm
PHX
- GEG
1 stop10h 24m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$70
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 9/910:55 pm
PHX
- BOI
1 stop15h 02m
Frontier
Deal found 7/13![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 9/910:55 pm
PHX
- GEG
1 stop10h 24m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 7/14. 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 9/125:55 pm
PHX
- GEG
1 stop15h 24m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 7/9. 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
Deal found 7/9![Allegiant Air logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 9/1010:55 pm
PHX
- BOI
1 stop15h 02m
Frontier
Deal found 7/10![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 10/810:40 pm
PHX
- BOI
1 stop15h 17m
Frontier
Deal found 7/13![Frontier logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 7/12. 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 8/139:58 pm
PHX
- IDA
1 stop17h 07m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 10/75:55 pm
PHX
- BOI
1 stop20h 02m
Frontier
Deal found 7/13![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 7/13. 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 7/13![Multiple Airlines logo]()
$88
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 14, 2026.
Round-trip from | $170 (Kiwi.com) |
|---|---|
One-way from | $56 (Booking.com) |
Popular in | June |
Cheapest in | January |
Average price | $331 |
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 14, 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
Quickest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 10/23
10:35 pm-1:40 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Mon 10/26
5:40 am-6:40 am
Nonstop2h 00m
$257
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 10/20
11:31 am-6:17 pm
1 stop5h 46m
Boise Air Term. Gowen Fld
Sat 10/24
7:41 am-2:03 pm
1 stop7h 22m
$257
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 8/25
7:10 am-4:10 pm
2 stops8h 00m
Boise Air Term. Gowen Fld
Wed 8/26
2:25 pm-8:20 pm
1 stop6h 55m
$262
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 8/28
5:10 pm-11:59 pm
1 stop5h 49m
Boise Air Term. Gowen Fld
Wed 9/2
6:45 pm-10:11 pm
1 stop4h 26m
$267
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Mon 8/3
6:15 pm-12:25 am
1 stop5h 10m
Boise Air Term. Gowen Fld
Fri 8/7
7:30 am-8:35 am
Nonstop2h 05m
$271
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 9/3
5:30 pm-8:42 pm
Nonstop2h 12m
Boise Air Term. Gowen Fld
Tue 9/8
7:20 am-11:31 am
1 stop5h 11m
$272
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 10/27
3:41 pm-11:46 pm
1 stop7h 05m
Boise Air Term. Gowen Fld
Sat 10/31
2:39 pm-6:57 pm
1 stop5h 18m
$278
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 9/3
12:13 pm-8:20 pm
1 stop7h 07m
Boise Air Term. Gowen Fld
Sun 9/6
7:20 am-11:31 am
1 stop5h 11m
$281
PhoenixBoise
AZA - BOI
AZABOI
Phoenix-Mesa Gateway
Tue 9/29
9:28 am-12:04 pm
3 stops49h 36m
Boise Air Term. Gowen Fld
Mon 10/5
1:30 pm-2:35 pm
Nonstop2h 05m
$282
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Thu 9/10
7:49 pm-11:53 pm
1 stop28h 04m
Spokane
Sun 9/13
6:00 am-10:27 pm
1 stop16h 27m
$284
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.
AZA-BOI
PHX-BOI
PHX-GEG
PHX-JAC
PHX-SUN
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
AZA-BOI
PHX-BOI
PHX-GEG
PHX-JAC
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 14, 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.
Weekly flight availability from Phoenix to Idaho
Explore weekly flight availability from Phoenix to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 14, 2026.
The most flights from PH1 to USID are scheduled on a Tuesday (7 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 on average).
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 58 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 July 11, 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 14, 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.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Crew
8.6
Entertainment
7.5
Food
7.0
Overall
8.0
Comfort
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
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 July 14, 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 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$418 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$200 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$137 | Average$207 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$147 | Average$286 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$278 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$168 | Average$369 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$419 | FlexibilityNo cancel fee | On-time69% |