$70+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Apr 10 — Apr 171
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Phoenix to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Phoenix to Idaho
Cheapest
Best
Last-minute
One-way
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 March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/26:30 am
PHX
- GEG
1 stop5h 57m
Delta
Tue 5/53:30 pm
GEG
- PHX
1 stop6h 21m
Delta
Deal found 3/6![Delta logo]()
$165
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/168:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1911:53 am
BOI
- PHX
1 stop12h 49m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$184
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Sat 5/26:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 3/10![American Airlines logo]()
$186
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/158:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sat 4/188:04 pm
BOI
- PHX
1 stop4h 23m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$187
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/28:30 am
PHX
- BOI
Nonstop2h 30m
American Airlines
Sun 4/56:33 pm
BOI
- PHX
Nonstop2h 21m
American Airlines
Deal found 3/11![American Airlines logo]()
$188
This Orbitz deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Fri 4/108:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1212:03 pm
BOI
- PHX
1 stop6h 44m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$189
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/295:00 am
PHX
- BOI
1 stop7h 52m
Alaska Airlines
Sat 5/21:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$190
This Southwest deal was found by Cheapflights users on 3/9. 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.
Wed 4/156:30 am
PHX
- BOI
2 stops8h 55m
Southwest
Sat 4/187:05 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/9![Southwest logo]()
$192
This Super.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/212:34 pm
PHX
- GEG
Nonstop2h 40m
Frontier
Thu 4/93:40 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/7![Frontier logo]()
$192
This Southwest deal was found by Cheapflights users on 3/11. 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.
Sat 4/257:00 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sat 5/24:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/11![Southwest logo]()
$193
This Expedia deal was found by Cheapflights users on 3/10. 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.
Tue 4/77:00 am
PHX
- GEG
1 stop8h 34m
Multiple Airlines
Mon 4/135:11 pm
GEG
- PHX
Nonstop2h 33m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$193
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/98:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1212:03 pm
BOI
- PHX
1 stop24h 42m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$194
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 March 11, 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 March 11, 2026.
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/46:30 am
PHX
- GEG
1 stop8h 19m
Delta
Sat 5/95:37 pm
GEG
- PHX
1 stop5h 23m
Delta
Deal found 3/6![Delta logo]()
$165
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/26:00 am
PHX
- BOI
1 stop16h 02m
Alaska Airlines
Sat 5/166:08 pm
BOI
- PHX
Nonstop2h 09m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 3/9. 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.
Wed 4/156:30 am
PHX
- BOI
2 stops8h 55m
Southwest
Sat 4/187:05 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/9![Southwest logo]()
$192
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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.
Fri 4/176:00 am
PHX
- SUN
1 stop6h 35m
United Airlines
Fri 4/242:24 pm
SUN
- PHX
1 stop5h 21m
United Airlines
Deal found 3/7![United Airlines logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Thu 4/210:00 am
AZA
- BOI
1 stop5h 23m
Allegiant Air
Mon 4/65:54 pm
BOI
- AZA
Nonstop2h 09m
Allegiant Air
Deal found 3/9![Allegiant Air logo]()
$297
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 3/236:40 am
PHX
- TWF
1 stop4h 20m
Multiple Airlines
Fri 3/271:40 pm
TWF
- PHX
2 stops6h 22m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/48:35 pm
PHX
- BOI
1 stop3h 50m
Southwest
Sat 4/1111:00 am
BOI
- PHX
1 stop6h 55m
Southwest
Deal found 3/6![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Fri 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Mon 4/202:22 pm
BOI
- PHX
1 stop5h 16m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$201
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/55:40 pm
PHX
- GEG
1 stop5h 35m
Delta
Fri 5/85:37 pm
GEG
- PHX
1 stop5h 23m
Delta
Deal found 3/7![Delta logo]()
$205
This Alaska Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/95:00 am
PHX
- BOI
1 stop7h 52m
Alaska Airlines
Sun 5/106:00 am
BOI
- PHX
1 stop6h 14m
Alaska Airlines
Deal found 3/7![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/175:23 pm
PHX
- SUN
1 stop3h 19m
Delta
Fri 4/2412:42 pm
SUN
- PHX
2 stops11h 32m
Delta
Deal found 3/7![Delta logo]()
$222
This Southwest deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 5/14:10 pm
PHX
- BOI
2 stops5h 45m
Southwest
Fri 5/812:05 pm
BOI
- PHX
1 stop4h 55m
Southwest
Deal found 3/8![Southwest logo]()
$222
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/158:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Wed 4/227:43 am
BOI
- PHX
1 stop16h 00m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$220
This Southwest deal was found by Cheapflights users on 3/11. 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.
Mon 4/610:50 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Fri 4/107:55 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/11![Southwest logo]()
$232
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/39:42 am
PHX
- JAC
1 stop6h 05m
Delta
Sun 4/125:50 pm
JAC
- PHX
1 stop6h 49m
Delta
Deal found 3/6![Delta logo]()
$245
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 4/216:00 am
PHX
- SUN
1 stop6h 35m
United Airlines
Wed 4/292:24 pm
SUN
- PHX
1 stop6h 55m
United Airlines
Deal found 3/9![United Airlines logo]()
$301
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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 4/157:00 am
PHX
- BOI
1 stop15h 47m
Alaska Airlines
Sat 4/188:04 pm
BOI
- PHX
1 stop4h 23m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$235
This Southwest deal was found by Cheapflights users on 3/9. 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.
Tue 3/319:30 pm
PHX
- GEG
Nonstop2h 40m
Southwest
Wed 4/152:25 pm
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 3/9![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 3/10. 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.
Tue 3/318:45 am
PHX
- GEG
1 stop6h 00m
Delta
Wed 4/153:30 pm
GEG
- PHX
1 stop7h 48m
Delta
Deal found 3/10![Delta logo]()
$254
This United Airlines deal was found by Cheapflights users on 3/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/26:00 am
PHX
- JAC
1 stop6h 21m
United Airlines
Sat 4/114:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 3/10![United Airlines logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 3/9. 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.
Tue 5/53:43 pm
PHX
- GEG
1 stop6h 37m
Alaska Airlines
Fri 5/85:00 am
GEG
- PHX
1 stop18h 59m
Alaska Airlines
Deal found 3/9![Alaska Airlines logo]()
$241
This Southwest deal was found by Cheapflights users on 3/10. 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 3/2810:50 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 3/315:40 am
BOI
- PHX
1 stop5h 40m
Southwest
Deal found 3/10![Southwest logo]()
$246
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/97:00 am
PHX
- JAC
1 stop5h 21m
United Airlines
Mon 4/134:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 3/7![United Airlines logo]()
$318
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/39:42 am
PHX
- JAC
1 stop6h 05m
Delta
Wed 4/151:09 pm
JAC
- PHX
2 stops11h 05m
Delta
Deal found 3/6![Delta logo]()
$272
This Southwest deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 5/79:55 pm
PHX
- GEG
Nonstop2h 35m
Southwest
Sat 5/95:10 am
GEG
- PHX
2 stops6h 45m
Southwest
Deal found 3/8![Southwest logo]()
$255
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 5/193:48 pm
PHX
- BOI
1 stop6h 10m
Delta
Sat 5/236:41 pm
BOI
- PHX
1 stop3h 40m
Delta
Deal found 3/8![Delta logo]()
$275
This United Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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.
Wed 4/86:00 am
PHX
- JAC
1 stop6h 21m
United Airlines
Mon 4/134:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 3/6![United Airlines logo]()
$337
This Southwest deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/910:00 am
PHX
- BOI
2 stops7h 20m
Southwest
Mon 4/135:40 pm
BOI
- PHX
1 stop6h 30m
Southwest
Deal found 3/6![Southwest logo]()
$267
This Alaska Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/256:00 am
PHX
- IDA
1 stop8h 29m
Alaska Airlines
Wed 4/296:00 am
IDA
- PHX
2 stops17h 43m
Alaska Airlines
Deal found 3/6![Alaska Airlines logo]()
$302
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 3/2610:00 am
AZA
- BOI
1 stop5h 30m
Allegiant Air
Mon 3/306:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/10![Allegiant Air logo]()
$491
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated March 11, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/28:30 am
PHX
- BOI
Nonstop2h 30m
American Airlines
Sun 4/56:33 pm
BOI
- PHX
Nonstop2h 21m
American Airlines
Deal found 3/11![American Airlines logo]()
$188
This Super.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 4/212:34 pm
PHX
- GEG
Nonstop2h 40m
Frontier
Thu 4/93:40 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/7![Frontier logo]()
$192
This Expedia deal was found by Cheapflights users on 3/10. 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.
Tue 4/77:00 am
PHX
- GEG
1 stop8h 34m
Multiple Airlines
Mon 4/135:11 pm
GEG
- PHX
Nonstop2h 33m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$193
This Expedia deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/98:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1212:03 pm
BOI
- PHX
1 stop24h 42m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$194
This Orbitz deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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.
Fri 4/108:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1212:03 pm
BOI
- PHX
1 stop6h 44m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$189
This Expedia deal was found by Cheapflights users on 3/9. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/148:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Thu 4/1611:53 am
BOI
- PHX
1 stop9h 17m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$195
This Alaska Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/158:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sat 4/188:04 pm
BOI
- PHX
1 stop4h 23m
Alaska Airlines
Deal found 3/8![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 3/9. 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.
Wed 4/156:30 am
PHX
- BOI
2 stops8h 55m
Southwest
Sat 4/187:05 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/9![Southwest logo]()
$192
This Expedia deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/168:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1911:53 am
BOI
- PHX
1 stop12h 49m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$184
This Delta deal was found by Cheapflights users on 3/9. 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 4/233:50 pm
PHX
- GEG
1 stop8h 30m
Delta
Sat 4/255:00 am
GEG
- PHX
1 stop5h 50m
Delta
Deal found 3/9![Delta logo]()
$165
This American Airlines deal was found by Cheapflights users on 3/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Sat 5/26:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 3/10![American Airlines logo]()
$186
This Alaska Airlines deal was found by Cheapflights users on 3/11. 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.
Wed 4/295:00 am
PHX
- BOI
1 stop7h 52m
Alaska Airlines
Sat 5/21:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 3/11![Alaska Airlines logo]()
$190
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 March 11, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This Delta deal was found by Cheapflights users on 3/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:40 pm
PHX
- BOI
1 stop5h 37m
Delta
Deal found 3/11![Delta logo]()
$70
This Alaska Airlines deal was found by Cheapflights users on 3/10. 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.
Tue 4/78:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Deal found 3/10![Alaska Airlines logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/31:57 pm
AZA
- BOI
Nonstop2h 07m
Allegiant Air
Deal found 3/6![Allegiant Air logo]()
$80
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/95:16 pm
PHX
- BOI
1 stop4h 48m
Delta
Deal found 3/7![Delta logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/208:02 pm
PHX
- GEG
1 stop23h 53m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$89
This American Airlines deal was found by Cheapflights users on 3/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Deal found 3/11![American Airlines logo]()
$90
This CheapOair deal was found by Cheapflights users on 3/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:52 pm
PHX
- BOI
1 stop15h 16m
Frontier
Deal found 3/9![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/228:07 pm
PHX
- GEG
1 stop24h 22m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$93
This Super.com deal was found by Cheapflights users on 3/9. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/16:52 pm
PHX
- GEG
1 stop15h 29m
Frontier
Deal found 3/9![Frontier logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 3/162:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Deal found 3/8![Allegiant Air logo]()
$99
This Delta deal was found by Cheapflights users on 3/10. 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.
Tue 4/73:45 pm
PHX
- BOI
1 stop5h 19m
Delta
Deal found 3/10![Delta logo]()
$99
This Southwest deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 5/27:00 pm
PHX
- GEG
Nonstop2h 35m
Southwest
Deal found 3/8![Southwest logo]()
$99
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 March 11, 2026.
Round-trip from | $165 (Delta) |
|---|---|
One-way from | $70 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $310 |
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 March 11, 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
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Mon 5/4
6:30 am-2:49 pm
1 stop8h 19m
Spokane
Sat 5/9
5:37 pm-11:00 pm
1 stop5h 23m
$165
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 5/2
6:00 am-11:02 pm
1 stop16h 02m
Boise Air Term. Gowen Fld
Sat 5/16
6:08 pm-7:17 pm
Nonstop2h 09m
$191
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 4/15
6:30 am-4:25 pm
2 stops8h 55m
Boise Air Term. Gowen Fld
Sat 4/18
7:05 am-8:10 am
Nonstop2h 05m
$192
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 4/4
8:35 pm-1:25 am
1 stop3h 50m
Boise Air Term. Gowen Fld
Sat 4/11
11:00 am-4:55 pm
1 stop6h 55m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 4/17
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Mon 4/20
2:22 pm-6:38 pm
1 stop5h 16m
$201
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Tue 5/5
5:40 pm-11:15 pm
1 stop5h 35m
Spokane
Fri 5/8
5:37 pm-11:00 pm
1 stop5h 23m
$205
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 5/9
5:00 am-1:52 pm
1 stop7h 52m
Boise Air Term. Gowen Fld
Sun 5/10
6:00 am-11:14 am
1 stop6h 14m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 4/15
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Wed 4/22
7:43 am-10:43 pm
1 stop16h 00m
$220
PhoenixHailey
PHX - SUN
PHXSUN
Phoenix Sky Harbor Intl
Fri 4/17
5:23 pm-9:42 pm
1 stop3h 19m
Hailey Sun Valley-Friedman
Fri 4/24
12:42 pm-11:14 pm
2 stops11h 32m
$222
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 5/1
4:10 pm-10:55 pm
2 stops5h 45m
Boise Air Term. Gowen Fld
Fri 5/8
12:05 pm-4:00 pm
1 stop4h 55m
$222
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Phoenix with our price prediction graph.
PHX-BOI
AZA-BOI
PHX-GEG
PHX-IDA
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
PHX-BOI
AZA-BOI
PHX-GEG
PHX-IDA
What is the cheapest month to book a flight from Phoenix to Idaho?
Currently, October is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $84). Flying from Phoenix to Idaho in December is currently the most expensive (average of $165). 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 March 11, 2026.
It’s typically best to fly out from Phoenix to Idaho at noon. Doing so could potentially save you 31% 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 February 21, 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 March 11, 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.
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
Comfort
7.8
Boarding
8.1
Crew
8.5
Entertainment
7.0
Overall
8.0
Food
7.1
Reviews
1 / 20
10.0
ExcellentFranzi,Mar 2026
SFO - PDX
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
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 March 11, 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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$411 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$164 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$136 | Average$202 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$241 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$257 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$156 | Average$357 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$445 | FlexibilityNo cancel fee | On-time69% |