$73+ Cheap flights from Phoenix to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
May 12 — May 191
Round-trip
1 adult, Economy
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Cheapest flights from Phoenix to IdahoExplore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 12, 2026.
Explore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Thu 5/77:40 am
PHX
- GEG
1 stop12h 49m
Multiple Airlines
Sun 5/179:19 pm
GEG
- PHX
1 stop11h 28m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Wed 6/310:27 pm
PHX
- GEG
1 stop21h 30m
Multiple Airlines
Sun 6/78:47 pm
GEG
- PHX
1 stop26h 37m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$164
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/77:40 am
PHX
- GEG
1 stop12h 49m
Multiple Airlines
Sun 5/109:19 pm
GEG
- PHX
1 stop11h 28m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 6/47:40 am
PHX
- GEG
1 stop12h 17m
Multiple Airlines
Sun 6/78:47 pm
GEG
- PHX
1 stop26h 37m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$170
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:50 am
PHX
- GEG
1 stop27h 59m
Frontier
Sun 5/311:44 am
GEG
- PHX
1 stop12h 03m
Frontier
Deal found 4/7![Frontier logo]()
$176
This Expedia deal was found by Cheapflights users on 4/9. 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.
Thu 5/285:15 am
PHX
- BOI
1 stop6h 15m
Multiple Airlines
Tue 6/26:08 pm
BOI
- PHX
Nonstop2h 09m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$179
This Expedia deal was found by Cheapflights users on 4/9. 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.
Thu 5/285:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Tue 6/21:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/9![Frontier logo]()
$180
This Frontier deal was found by Cheapflights users on 4/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Sun 5/241:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/8![Frontier logo]()
$185
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sat 5/94:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/7![Southwest logo]()
$187
This CheapOair deal was found by Cheapflights users on 4/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:29 pm
PHX
- BOI
1 stop19h 01m
Frontier
Tue 6/21:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/8![Frontier logo]()
$191
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 5/63:30 pm
PHX
- BOI
2 stops6h 50m
Southwest
Wed 5/136:40 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/8![Southwest logo]()
$192
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sun 5/33:25 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/7![Southwest logo]()
$197
Best flights from Phoenix to IdahoDiscover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 12, 2026.
Discover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 12, 2026.
This Southwest deal was found by Cheapflights users on 4/9. 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 6/26:05 pm
PHX
- BOI
1 stop4h 15m
Southwest
Tue 6/94:20 pm
BOI
- PHX
Nonstop2h 15m
Southwest
Deal found 4/9![Southwest logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Wed 5/133:54 pm
PHX
- BOI
1 stop7h 04m
Alaska Airlines
Sat 5/166:08 pm
BOI
- PHX
Nonstop2h 09m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$217
This Delta deal was found by Cheapflights users on 4/7. 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 5/26:30 am
PHX
- BOI
1 stop5h 42m
Delta
Tue 5/58:59 am
BOI
- PHX
1 stop6h 44m
Delta
Deal found 4/7![Delta logo]()
$217
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/156:00 am
PHX
- SUN
1 stop6h 38m
United Airlines
Tue 5/192:30 pm
SUN
- PHX
1 stop6h 49m
United Airlines
Deal found 4/8![United Airlines logo]()
$340
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:15 am
PHX
- BOI
1 stop7h 25m
Southwest
Mon 5/186:55 pm
BOI
- PHX
1 stop5h 05m
Southwest
Deal found 4/7![Southwest logo]()
$217
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Thu 5/219:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Tue 5/261:25 pm
BOI
- AZA
2 stops33h 16m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$452
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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 5/26:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
Mon 5/41:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$227
This Delta deal was found by Cheapflights users on 4/7. 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 5/16:30 am
PHX
- BOI
1 stop5h 42m
Delta
Tue 5/55:40 am
BOI
- PHX
1 stop6h 10m
Delta
Deal found 4/7![Delta logo]()
$227
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/302:45 pm
PHX
- BOI
1 stop6h 05m
Southwest
Sun 5/32:15 pm
BOI
- PHX
1 stop6h 25m
Southwest
Deal found 4/7![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/157:15 am
PHX
- BOI
1 stop7h 25m
Southwest
Sun 5/315:10 pm
BOI
- PHX
1 stop6h 55m
Southwest
Deal found 4/7![Southwest logo]()
$217
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Thu 6/47:53 pm
PHX
- GEG
1 stop25h 52m
Alaska Airlines
Tue 6/97:01 am
GEG
- PHX
1 stop12h 09m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$239
This Delta deal was found by Cheapflights users on 4/9. 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.
Wed 6/175:33 pm
PHX
- GEG
1 stop5h 21m
Delta
Wed 7/17:20 am
GEG
- PHX
1 stop7h 33m
Delta
Deal found 4/9![Delta logo]()
$257
This Alaska Airlines deal was found by Cheapflights users on 4/6. 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 6/36:00 am
PHX
- GEG
1 stop5h 42m
Alaska Airlines
Wed 6/33:20 pm
GEG
- PHX
1 stop3h 57m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$245
This Southwest deal was found by Cheapflights users on 4/11. 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.
Wed 7/159:30 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Mon 7/205:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/11![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 4/11. 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.
Mon 5/116:37 am
PHX
- GEG
1 stop15h 43m
Alaska Airlines
Sat 5/1612:36 pm
GEG
- PHX
1 stop4h 40m
Alaska Airlines
Deal found 4/11![Alaska Airlines logo]()
$258
This Delta deal was found by Cheapflights users on 4/10. 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.
Fri 5/156:05 am
PHX
- SUN
1 stop4h 52m
Delta
Tue 5/1912:39 pm
SUN
- PHX
1 stop4h 20m
Delta
Deal found 4/10![Delta logo]()
$291
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 5/66:20 am
PHX
- GEG
2 stops7h 45m
Southwest
Wed 5/1310:55 am
GEG
- PHX
1 stop6h 05m
Southwest
Deal found 4/8![Southwest logo]()
$262
This Delta deal was found by Cheapflights users on 4/9. 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 5/229:33 am
PHX
- SUN
1 stop4h 01m
Delta
Mon 5/2512:39 pm
SUN
- PHX
1 stop4h 20m
Delta
Deal found 4/9![Delta logo]()
$291
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Thu 4/303:43 pm
PHX
- GEG
1 stop6h 37m
Alaska Airlines
Sat 5/27:27 am
GEG
- PHX
1 stop7h 34m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$282
This Gotogate deal was found by Cheapflights users on 4/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/239:28 am
PHX
- TWF
2 stops25h 32m
Breeze Airways
Mon 4/271:40 pm
TWF
- PHX
3 stops26h 41m
Breeze Airways
Deal found 4/8![Breeze Airways logo]()
$847
This Southwest deal was found by Cheapflights users on 4/10. 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.
Tue 6/28:20 pm
PHX
- GEG
Nonstop2h 35m
Southwest
Mon 6/86:05 pm
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 4/10![Southwest logo]()
$271
This United Airlines deal was found by Cheapflights users on 4/9. 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.
Fri 5/16:00 am
PHX
- SUN
1 stop6h 38m
United Airlines
Tue 5/52:30 pm
SUN
- PHX
1 stop6h 49m
United Airlines
Deal found 4/9![United Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 4/11. 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.
Tue 7/75:07 pm
PHX
- JAC
1 stop3h 22m
Delta
Fri 7/106:06 pm
JAC
- PHX
1 stop6h 25m
Delta
Deal found 4/11![Delta logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 4/8. 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.
Tue 5/53:43 pm
PHX
- GEG
1 stop6h 37m
Alaska Airlines
Fri 5/812:40 pm
GEG
- PHX
1 stop6h 02m
Alaska Airlines
Deal found 4/8![Alaska Airlines logo]()
$300
This Delta deal was found by Cheapflights users on 4/11. 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.
Fri 5/89:33 am
PHX
- JAC
1 stop6h 26m
Delta
Fri 5/155:59 pm
JAC
- PHX
1 stop6h 30m
Delta
Deal found 4/11![Delta logo]()
$320
This United Airlines deal was found by Cheapflights users on 4/10. 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.
Tue 9/156:00 am
PHX
- WYS
1 stop6h 20m
United Airlines
Sat 9/195:45 pm
WYS
- PHX
1 stop5h 13m
United Airlines
Deal found 4/10![United Airlines logo]()
$484
This Alaska Airlines deal was found by Cheapflights users on 4/7. 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.
Fri 5/87:15 pm
PHX
- GEG
1 stop27h 05m
Alaska Airlines
Sun 5/107:27 am
GEG
- PHX
1 stop26h 56m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Thu 5/289:00 am
AZA
- BOI
1 stop5h 10m
Multiple Airlines
Sun 5/314:00 pm
BOI
- AZA
2 stops16h 08m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$569
This Delta deal was found by Cheapflights users on 4/11. 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.
Sat 5/96:00 am
PHX
- SUN
2 stops7h 34m
Delta
Sat 5/167:30 am
SUN
- PHX
1 stop5h 39m
Delta
Deal found 4/11![Delta logo]()
$330
This Delta deal was found by Cheapflights users on 4/11. 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.
Mon 8/175:20 pm
PHX
- SUN
1 stop3h 34m
Delta
Mon 8/247:30 am
SUN
- PHX
1 stop5h 37m
Delta
Deal found 4/11![Delta logo]()
$345
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated April 12, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated April 12, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 4/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:50 am
PHX
- GEG
1 stop27h 59m
Frontier
Sun 5/311:44 am
GEG
- PHX
1 stop12h 03m
Frontier
Deal found 4/7![Frontier logo]()
$176
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sun 5/33:25 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/7![Southwest logo]()
$197
This Southwest deal was found by Cheapflights users on 4/7. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/19:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sat 5/94:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/7![Southwest logo]()
$187
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 5/63:30 pm
PHX
- BOI
2 stops6h 50m
Southwest
Wed 5/136:40 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 4/8![Southwest logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 4/11. 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.
Thu 5/77:40 am
PHX
- GEG
1 stop12h 49m
Multiple Airlines
Sun 5/179:19 pm
GEG
- PHX
1 stop11h 28m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/77:40 am
PHX
- GEG
1 stop12h 49m
Multiple Airlines
Sun 5/109:19 pm
GEG
- PHX
1 stop11h 28m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$165
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 5/138:45 am
PHX
- BOI
1 stop4h 55m
Southwest
Tue 5/1911:35 am
BOI
- PHX
1 stop9h 10m
Southwest
Deal found 4/8![Southwest logo]()
$202
This Expedia deal was found by Cheapflights users on 4/10. 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.
Thu 5/145:15 am
PHX
- BOI
1 stop6h 12m
Multiple Airlines
Tue 5/199:00 am
BOI
- PHX
1 stop5h 22m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$199
This Frontier deal was found by Cheapflights users on 4/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/215:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Sun 5/241:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/8![Frontier logo]()
$185
This CheapOair deal was found by Cheapflights users on 4/8. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/274:29 pm
PHX
- BOI
1 stop19h 01m
Frontier
Tue 6/21:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/8![Frontier logo]()
$191
This Expedia deal was found by Cheapflights users on 4/9. 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.
Thu 5/285:15 am
PHX
- BOI
1 stop6h 15m
Multiple Airlines
Tue 6/26:08 pm
BOI
- PHX
Nonstop2h 09m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$179
This Expedia deal was found by Cheapflights users on 4/9. 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.
Thu 5/285:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Tue 6/21:25 pm
BOI
- PHX
1 stop11h 04m
Frontier
Deal found 4/9![Frontier logo]()
$180
One-way flights from Phoenix to IdahoSearch for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated April 12, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated April 12, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/8. 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 5/610:27 pm
PHX
- GEG
1 stop22h 02m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 4/8. 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.
Thu 5/79:42 am
PHX
- GEG
1 stop10h 47m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 4/10. 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 5/710:27 pm
PHX
- IDA
1 stop16h 00m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$85
This Super.com deal was found by Cheapflights users on 4/7. 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.
Wed 4/2912:50 pm
PHX
- GEG
1 stop21h 59m
Frontier
Deal found 4/7![Frontier logo]()
$85
This Southwest deal was found by Cheapflights users on 4/9. 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 6/99:30 pm
PHX
- BOI
Nonstop2h 00m
Southwest
Deal found 4/9![Southwest logo]()
$89
This Priceline deal was found by Cheapflights users on 4/8. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/75:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Deal found 4/8![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 4/9. 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.
Wed 6/1010:27 pm
PHX
- GEG
1 stop21h 30m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 4/10. 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.
Wed 5/1310:27 pm
PHX
- GEG
1 stop22h 02m
Multiple Airlines
Deal found 4/10![Multiple Airlines logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 4/11. 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 6/87:40 am
PHX
- IDA
1 stop7h 28m
Multiple Airlines
Deal found 4/11![Multiple Airlines logo]()
$96
This Southwest deal was found by Cheapflights users on 4/8. 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.
Wed 4/296:05 pm
PHX
- BOI
1 stop4h 15m
Southwest
Deal found 4/8![Southwest logo]()
$99
This Super.com deal was found by Cheapflights users on 4/7. 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.
Fri 5/155:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Deal found 4/7![Frontier logo]()
$99
This CheapOair deal was found by Cheapflights users on 4/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/16:51 pm
PHX
- BOI
1 stop16h 39m
Frontier
Deal found 4/7![Frontier logo]()
$102
Find flight deals from Phoenix to Idaho
Keep the following information in mind while searching for Phoenix to Idaho flight deals. Data was last updated April 12, 2026.
Round-trip from | $160 (Kiwi.com) |
|---|---|
One-way from | $73 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $254 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
Use the filters below to find and compare flights from Phoenix to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 6/2
6:05 pm-11:20 pm
1 stop4h 15m
Boise Air Term. Gowen Fld
Tue 6/9
4:20 pm-5:35 pm
Nonstop2h 15m
$187
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 5/13
3:54 pm-11:58 pm
1 stop7h 04m
Boise Air Term. Gowen Fld
Sat 5/16
6:08 pm-7:17 pm
Nonstop2h 09m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 5/2
6:30 am-1:12 pm
1 stop5h 42m
Boise Air Term. Gowen Fld
Tue 5/5
8:59 am-2:43 pm
1 stop6h 44m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 5/15
7:15 am-3:40 pm
1 stop7h 25m
Boise Air Term. Gowen Fld
Mon 5/18
6:55 pm-11:00 pm
1 stop5h 05m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 4/30
2:45 pm-9:50 pm
1 stop6h 05m
Boise Air Term. Gowen Fld
Sun 5/3
2:15 pm-7:40 pm
1 stop6h 25m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 5/15
7:15 am-3:40 pm
1 stop7h 25m
Boise Air Term. Gowen Fld
Sun 5/31
5:10 pm-11:05 pm
1 stop6h 55m
$217
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Sat 5/2
6:00 am-1:52 pm
1 stop6h 52m
Boise Air Term. Gowen Fld
Mon 5/4
1:25 pm-2:36 pm
Nonstop2h 11m
$227
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 5/1
6:30 am-1:12 pm
1 stop5h 42m
Boise Air Term. Gowen Fld
Tue 5/5
5:40 am-10:50 am
1 stop6h 10m
$227
Quickest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 7/15
9:30 pm-12:30 am
Nonstop2h 00m
Boise Air Term. Gowen Fld
Mon 7/20
5:30 am-6:35 am
Nonstop2h 05m
$237
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Thu 6/4
7:53 pm-9:45 pm
1 stop25h 52m
Spokane
Tue 6/9
7:01 am-7:10 pm
1 stop12h 09m
$239
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-GEG
PHX-BOI
PHX-JAC
AZA-BOI
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-GEG
PHX-BOI
PHX-JAC
AZA-BOI
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 April 12, 2026.
It’s typically best to fly out from Phoenix to Idaho at noon. Doing so could potentially save you 25% on the flight price compared to flying in the evening, which is usually more expensive.
What is the cheapest day to fly from Phoenix to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Phoenix to Idaho. Price data was last updated on April 4, 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 April 12, 2026.
The most flights from PH1 to USID are scheduled on a Monday (10 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 April 12, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Phoenix to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Food
7.0
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Overall
8.0
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Phoenix to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Idaho by cabin class
Find flights from Phoenix to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Phoenix and Idaho flights
Browse other Phoenix and Idaho flight options. Last updated on April 12, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Phoenix to Idaho flights
Consider these flights traveling from Phoenix to Idaho.
Top 7 airlines flying from Phoenix to Idaho
Discover the top 7 airlines that operate flights from Phoenix to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$399 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$168 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$124 | Average$198 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$237 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$260 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$157 | Average$357 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$456 | FlexibilityNo cancel fee | On-time69% |