$85+ 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 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Jun 17 — Jun 241
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 May 18, 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 May 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Thu 6/410:27 pm
PHX
- IDA
1 stop16h 41m
Multiple Airlines
Mon 6/810:56 pm
IDA
- PHX
1 stop12h 57m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$173
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 7/1012:20 pm
PHX
- IDA
1 stop8h 37m
Multiple Airlines
Mon 7/1310:47 pm
IDA
- PHX
1 stop25h 10m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Thu 7/2310:27 pm
PHX
- IDA
1 stop16h 33m
Multiple Airlines
Mon 7/2710:47 pm
IDA
- PHX
1 stop15h 08m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 6/1110:32 pm
PHX
- IDA
1 stop16h 36m
Multiple Airlines
Mon 6/1510:56 pm
IDA
- PHX
1 stop14h 59m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Fri 6/57:40 am
PHX
- IDA
1 stop7h 28m
Multiple Airlines
Mon 6/810:56 pm
IDA
- PHX
1 stop12h 57m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$227
This Booking.com deal was found by Cheapflights users on 5/18. 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 6/86:51 pm
PHX
- BOI
1 stop16h 39m
Frontier
Thu 6/111:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 5/18![Frontier logo]()
$235
This Southwest deal was found by Cheapflights users on 5/13. 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.
Thu 6/410:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Tue 6/95:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 5/13![Southwest logo]()
$237
This Expedia deal was found by Cheapflights users on 5/14. 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 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 6/86:12 pm
BOI
- PHX
1 stop6h 44m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$238
This Booking.com deal was found by Cheapflights users on 5/15. 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.
Sat 9/510:57 am
PHX
- BOI
1 stop24h 12m
Frontier
Tue 9/81:04 pm
BOI
- PHX
1 stop23h 38m
Frontier
Deal found 5/15![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/157:45 am
PHX
- IDA
1 stop7h 23m
Multiple Airlines
Mon 6/2210:56 pm
IDA
- PHX
1 stop14h 59m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 5/15. 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 6/99:30 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Sat 6/136:00 pm
BOI
- PHX
Nonstop2h 10m
Southwest
Deal found 5/15![Southwest logo]()
$242
This Travelocity deal was found by Cheapflights users on 5/16. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:40 am
PHX
- BOI
1 stop4h 49m
Multiple Airlines
Tue 8/182:55 pm
BOI
- PHX
Nonstop2h 19m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$243
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 May 18, 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 May 18, 2026.
This Southwest deal was found by Cheapflights users on 5/13. 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.
Thu 6/410:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Tue 6/95:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 5/13![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 5/15. 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 6/35:16 pm
PHX
- SUN
1 stop3h 43m
Delta
Mon 6/81:10 pm
SUN
- PHX
1 stop3h 56m
Delta
Deal found 5/15![Delta logo]()
$271
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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 7/84:56 pm
PHX
- GEG
1 stop4h 37m
Alaska Airlines
Tue 7/145:00 am
GEG
- PHX
1 stop4h 49m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$277
This United Airlines deal was found by Cheapflights users on 5/17. 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 10/271:45 pm
PHX
- JAC
1 stop6h 17m
United Airlines
Sat 10/314:25 pm
JAC
- PHX
1 stop6h 26m
United Airlines
Deal found 5/17![United Airlines logo]()
$320
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 6/117:49 pm
AZA
- BOI
2 stops40h 28m
Allegiant Air
Thu 6/183:07 pm
BOI
- AZA
1 stop8h 39m
Allegiant Air
Deal found 5/17![Allegiant Air logo]()
$375
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Thu 5/219:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Tue 6/91:25 pm
BOI
- AZA
2 stops32h 23m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$476
This Delta deal was found by Cheapflights users on 5/18. 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 6/135:15 pm
PHX
- SUN
1 stop3h 54m
Delta
Mon 6/223:15 pm
SUN
- PHX
1 stop3h 56m
Delta
Deal found 5/18![Delta logo]()
$271
This Southwest deal was found by Cheapflights users on 5/17. 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 7/19:30 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Sat 7/411:50 am
BOI
- PHX
1 stop6h 05m
Southwest
Deal found 5/17![Southwest logo]()
$288
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:00 am
PHX
- BOI
1 stop8h 34m
Alaska Airlines
Thu 6/116:13 pm
BOI
- PHX
1 stop6h 41m
Alaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 5/16. 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 5/278:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sun 5/315:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 5/16![Southwest logo]()
$296
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 7/154:56 pm
PHX
- BOI
Nonstop2h 14m
Alaska Airlines
Sun 7/192:55 pm
BOI
- PHX
Nonstop2h 19m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$296
This United Airlines deal was found by Cheapflights users on 5/16. 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 10/249:23 am
PHX
- JAC
1 stop4h 49m
United Airlines
Sat 10/312:40 pm
JAC
- PHX
1 stop5h 02m
United Airlines
Deal found 5/16![United Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/15. 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 7/154:02 pm
PHX
- BOI
1 stop5h 56m
Delta
Sun 7/196:42 pm
BOI
- PHX
1 stop5h 49m
Delta
Deal found 5/15![Delta logo]()
$306
This Southwest deal was found by Cheapflights users on 5/13. 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.
Sat 7/117:50 am
PHX
- BOI
Nonstop2h 05m
Southwest
Fri 7/173:25 pm
BOI
- PHX
2 stops6h 35m
Southwest
Deal found 5/13![Southwest logo]()
$301
This United Airlines deal was found by Cheapflights users on 5/15. 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 6/136:00 am
PHX
- WYS
1 stop6h 32m
United Airlines
Wed 6/172:19 pm
WYS
- PHX
1 stop7h 11m
United Airlines
Deal found 5/15![United Airlines logo]()
$353
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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 11/113:31 pm
PHX
- IDA
1 stop8h 11m
Alaska Airlines
Sat 11/141:53 pm
IDA
- PHX
1 stop8h 56m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 5/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:05 am
PHX
- WYS
1 stop5h 20m
Delta
Tue 6/21:10 pm
WYS
- PHX
1 stop5h 55m
Delta
Deal found 5/14![Delta logo]()
$324
This Southwest deal was found by Cheapflights users on 5/15. 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 7/115:40 am
PHX
- BOI
1 stop4h 50m
Southwest
Sat 7/185:40 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 5/15![Southwest logo]()
$306
This Delta deal was found by Cheapflights users on 5/16. 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 6/129:45 am
PHX
- SUN
1 stop3h 49m
Delta
Fri 6/197:20 am
SUN
- PHX
1 stop5h 55m
Delta
Deal found 5/16![Delta logo]()
$325
This Southwest deal was found by Cheapflights users on 5/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/298:05 am
PHX
- BOI
2 stops5h 35m
Southwest
Sun 8/29:00 pm
BOI
- PHX
1 stop4h 10m
Southwest
Deal found 5/14![Southwest logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 5/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/244:10 pm
PHX
- IDA
1 stop5h 46m
Alaska Airlines
Sun 9/274:14 pm
IDA
- PHX
1 stop8h 08m
Alaska Airlines
Deal found 5/14![Alaska Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 5/219:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Sat 5/232:10 pm
BOI
- AZA
2 stops18h 48m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$505
This Delta deal was found by Cheapflights users on 5/16. 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 6/309:45 am
PHX
- JAC
1 stop6h 15m
Delta
Tue 7/76:05 pm
JAC
- PHX
1 stop6h 26m
Delta
Deal found 5/16![Delta logo]()
$345
This Southwest deal was found by Cheapflights users on 5/14. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/44:00 pm
PHX
- GEG
1 stop8h 30m
Southwest
Mon 6/812:20 pm
GEG
- PHX
2 stops7h 30m
Southwest
Deal found 5/14![Southwest logo]()
$334
This United Airlines deal was found by Cheapflights users on 5/16. 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 6/96:00 am
PHX
- IDA
1 stop6h 25m
United Airlines
Sat 6/134:10 pm
IDA
- PHX
1 stop5h 20m
United Airlines
Deal found 5/16![United Airlines logo]()
$448
This Alaska Airlines deal was found by Cheapflights users on 5/13. 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.
Sat 6/207:00 am
PHX
- IDA
1 stop5h 06m
Alaska Airlines
Fri 6/264:14 pm
IDA
- PHX
1 stop5h 23m
Alaska Airlines
Deal found 5/13![Alaska Airlines logo]()
$379
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 6/57:57 am
AZA
- BOI
2 stops28h 20m
Allegiant Air
Thu 6/113:07 pm
BOI
- AZA
1 stop8h 39m
Allegiant Air
Deal found 5/15![Allegiant Air logo]()
$561
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 5/219:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Thu 5/284:00 pm
BOI
- AZA
2 stops16h 08m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$518
This Delta deal was found by Cheapflights users on 5/15. 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 6/131:10 pm
PHX
- JAC
1 stop4h 46m
Delta
Sat 6/206:05 pm
JAC
- PHX
1 stop5h 09m
Delta
Deal found 5/15![Delta logo]()
$354
This Southwest deal was found by Cheapflights users on 5/15. 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 7/295:50 am
PHX
- GEG
2 stops8h 25m
Southwest
Tue 8/410:55 am
GEG
- PHX
1 stop6h 30m
Southwest
Deal found 5/15![Southwest logo]()
$342
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated May 18, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated May 18, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Thu 6/410:27 pm
PHX
- IDA
1 stop16h 41m
Multiple Airlines
Mon 6/810:56 pm
IDA
- PHX
1 stop12h 57m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$173
This Southwest deal was found by Cheapflights users on 5/13. 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.
Thu 6/410:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Tue 6/95:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 5/13![Southwest logo]()
$237
This Expedia deal was found by Cheapflights users on 5/14. 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 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 6/86:12 pm
BOI
- PHX
1 stop6h 44m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 5/14. 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.
Fri 6/57:40 am
PHX
- IDA
1 stop7h 28m
Multiple Airlines
Mon 6/810:56 pm
IDA
- PHX
1 stop12h 57m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$227
This Southwest deal was found by Cheapflights users on 5/15. 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 6/510:45 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Sun 6/79:00 pm
BOI
- PHX
1 stop4h 10m
Southwest
Deal found 5/15![Southwest logo]()
$247
This Expedia deal was found by Cheapflights users on 5/15. 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 6/54:23 pm
PHX
- BOI
1 stop5h 14m
Multiple Airlines
Thu 6/111:25 pm
BOI
- PHX
1 stop19h 20m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$248
This American Airlines deal was found by Cheapflights users on 5/16. 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.
Sat 6/62:26 pm
PHX
- BOI
Nonstop2h 15m
American Airlines
Tue 6/98:11 am
BOI
- PHX
Nonstop2h 18m
American Airlines
Deal found 5/16![American Airlines logo]()
$251
This Booking.com deal was found by Cheapflights users on 5/18. 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 6/86:51 pm
PHX
- BOI
1 stop16h 39m
Frontier
Thu 6/111:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 5/18![Frontier logo]()
$235
This Southwest deal was found by Cheapflights users on 5/15. 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 6/99:30 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Sat 6/136:00 pm
BOI
- PHX
Nonstop2h 10m
Southwest
Deal found 5/15![Southwest logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 6/1110:32 pm
PHX
- IDA
1 stop16h 36m
Multiple Airlines
Mon 6/1510:56 pm
IDA
- PHX
1 stop14h 59m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$225
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 6/157:45 am
PHX
- IDA
1 stop7h 23m
Multiple Airlines
Mon 6/2210:56 pm
IDA
- PHX
1 stop14h 59m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$241
This Expedia deal was found by Cheapflights users on 5/17. 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 6/164:56 pm
PHX
- BOI
Nonstop2h 14m
Multiple Airlines
Thu 6/251:25 pm
BOI
- PHX
1 stop11h 04m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$253
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 May 18, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated May 18, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 7/1312:20 pm
PHX
- IDA
1 stop8h 37m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 8/1210:27 pm
PHX
- GEG
1 stop21h 57m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 5/15. 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 7/810:27 pm
PHX
- GEG
1 stop21h 34m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$90
This Super.com deal was found by Cheapflights users on 5/14. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/96:53 pm
PHX
- GEG
1 stop16h 43m
Frontier
Deal found 5/14![Frontier logo]()
$92
This Super.com deal was found by Cheapflights users on 5/15. 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 8/114:48 pm
PHX
- GEG
1 stop18h 49m
Frontier
Deal found 5/15![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 5/17. 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
Deal found 5/17![Multiple Airlines logo]()
$95
This Super.com deal was found by Cheapflights users on 5/15. 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 7/72:15 pm
PHX
- GEG
1 stop21h 22m
Frontier
Deal found 5/15![Frontier logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 8/1310:27 pm
PHX
- IDA
1 stop16h 38m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 5/17. 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 7/1012:20 pm
PHX
- BOI
1 stop24h 10m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$105
This Priceline deal was found by Cheapflights users on 5/13. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/85:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Deal found 5/13![Frontier logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 5/16. 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 7/1012:20 pm
PHX
- IDA
1 stop8h 37m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$107
This Frontier deal was found by Cheapflights users on 5/18. 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 8/136:40 am
PHX
- BOI
1 stop4h 49m
Frontier
Deal found 5/18![Frontier logo]()
$109
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 May 18, 2026.
Round-trip from | $173 (Kiwi.com) |
|---|---|
One-way from | $85 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $309 |
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 May 18, 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
Thu 6/4
10:45 pm-1:45 am
Nonstop2h 00m
Boise Air Term. Gowen Fld
Tue 6/9
5:30 am-6:35 am
Nonstop2h 05m
$237
PhoenixHailey
PHX - SUN
PHXSUN
Phoenix Sky Harbor Intl
Wed 6/3
5:16 pm-9:59 pm
1 stop3h 43m
Hailey Sun Valley-Friedman
Mon 6/8
1:10 pm-4:06 pm
1 stop3h 56m
$271
PhoenixHailey
PHX - SUN
PHXSUN
Phoenix Sky Harbor Intl
Sat 6/13
5:15 pm-10:09 pm
1 stop3h 54m
Hailey Sun Valley-Friedman
Mon 6/22
3:15 pm-6:11 pm
1 stop3h 56m
$271
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Wed 7/8
4:56 pm-9:33 pm
1 stop4h 37m
Spokane
Tue 7/14
5:00 am-9:49 am
1 stop4h 49m
$277
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 7/1
9:30 pm-12:30 am
Nonstop2h 00m
Boise Air Term. Gowen Fld
Sat 7/4
11:50 am-4:55 pm
1 stop6h 05m
$288
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 6/9
6:00 am-3:34 pm
1 stop8h 34m
Boise Air Term. Gowen Fld
Thu 6/11
6:13 pm-11:54 pm
1 stop6h 41m
$291
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 5/27
8:25 pm-11:30 pm
Nonstop2h 05m
Boise Air Term. Gowen Fld
Sun 5/31
5:30 am-6:35 am
Nonstop2h 05m
$296
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 7/15
4:56 pm-8:10 pm
Nonstop2h 14m
Boise Air Term. Gowen Fld
Sun 7/19
2:55 pm-4:14 pm
Nonstop2h 19m
$296
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 7/11
7:50 am-10:55 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Fri 7/17
3:25 pm-9:00 pm
2 stops6h 35m
$301
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 7/15
4:02 pm-10:58 pm
1 stop5h 56m
Boise Air Term. Gowen Fld
Sun 7/19
6:42 pm-11:31 pm
1 stop5h 49m
$306
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-IDA
PHX-GEG
PHX-BOI
PHX-SUN
AZA-BOI
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-IDA
PHX-GEG
PHX-BOI
PHX-SUN
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 April is currently the most expensive (average of $148). 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 May 18, 2026.
It’s typically best to fly out from Phoenix to Idaho in the afternoon. Doing so could potentially save you 26% 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 May 9, 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.
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 May 18, 2026.
The most flights from PH1 to USID are scheduled on a Monday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (2 on average).
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 May 18, 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
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
Boarding
8.1
Food
7.0
Comfort
7.8
Crew
8.5
Overall
7.9
Entertainment
7.0
Reviews
1 / 20
8.0
ExcellentEugene,Mar 2026
MFR - SEA
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 May 18, 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 May 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$405 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$166 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$124 | Average$198 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$246 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$147 | Average$266 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$359 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$456 | FlexibilityNo cancel fee | On-time69% |