$54+ Cheap flights from Phoenix to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Sep 10 — Sep 171
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 August 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 August 11, 2026.
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 9/188:55 pm -
Nonstop2h 00m
Tue 9/2211:30 am -
1 stop7h 15m
Deal found 8/10![Southwest logo]()
$217
This Southwest deal was found by Cheapflights users on 8/10. 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.
Mon 9/141:55 pm -
2 stops8h 00m
Tue 9/157:05 am -
Nonstop2h 05m
Deal found 8/10![Southwest logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/710:30 pm -
2 stops12h 59m
Fri 9/112:50 pm -
1 stop8h 57m
Deal found 8/8![Frontier logo]()
$219
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Sat 9/127:02 am -
1 stop5h 12m
Sat 9/195:42 pm -
Nonstop2h 13m
Deal found 8/10![Alaska Airlines logo]()
$221
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/102:00 pm -
1 stop5h 45m
Mon 9/141:55 pm -
1 stop4h 55m
Deal found 8/10![Southwest logo]()
$222
This Southwest deal was found by Cheapflights users on 8/9. 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.
Fri 9/118:55 pm -
Nonstop2h 00m
Sat 9/126:10 am -
Nonstop2h 05m
Deal found 8/9![Southwest logo]()
$223
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am -
1 stop4h 55m
Mon 9/142:50 pm -
1 stop8h 57m
Deal found 8/7![Frontier logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/178:00 am -
1 stop4h 55m
Sun 9/202:50 pm -
1 stop26h 28m
Deal found 8/8![Frontier logo]()
$227
This Expedia deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:37 pm -
Nonstop2h 08m
Sun 10/42:50 pm -
1 stop26h 28m
Deal found 8/10![Multiple Airlines logo]()
$230
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:30 am -
1 stop7h 27m
Sun 10/253:52 pm -
1 stop6h 43m
Deal found 8/6![Frontier logo]()
$231
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Fri 9/187:22 am -
1 stop9h 39m
Mon 9/216:21 pm -
1 stop18h 38m
Deal found 8/8![Multiple Airlines logo]()
$241
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:30 am -
1 stop12h 00m
Thu 10/297:28 pm -
1 stop21h 22m
Deal found 8/10![Multiple Airlines logo]()
$242
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 August 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 August 11, 2026.
This Southwest deal was found by Cheapflights users on 8/9. 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.
Thu 10/85:35 am -
1 stop5h 15m
Tue 10/133:25 pm -
2 stops6h 45m
Deal found 8/9![Southwest logo]()
$270
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 10/97:24 pm -
1 stop26h 16m
Tue 10/137:19 am -
1 stop13h 22m
Deal found 8/10![Alaska Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 10/98:20 pm -
Nonstop2h 41m
Tue 10/136:30 am -
Nonstop2h 54m
Deal found 8/10![American Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/29:31 am -
Nonstop2h 09m
Sun 10/42:50 pm -
2 stops18h 51m
Deal found 8/6![Multiple Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 8/7. 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.
Mon 9/76:59 am -
1 stop5h 21m
Mon 9/147:06 pm -
1 stop4h 50m
Deal found 8/7![Delta logo]()
$309
This United Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 10/228:00 am -
1 stop4h 45m
Sun 10/257:00 am -
1 stop4h 44m
Deal found 8/6![United Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 8/6. 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 10/29:31 am -
Nonstop2h 09m
Sun 10/45:58 pm -
1 stop5h 30m
Deal found 8/6![Allegiant Air logo]()
$469
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/1012:15 pm -
2 stops9h 40m
Mon 9/147:00 am -
2 stops6h 50m
Deal found 8/10![Southwest logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 8/7. 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 10/177:38 am -
1 stop5h 09m
Mon 10/194:18 pm -
1 stop6h 30m
Deal found 8/7![Alaska Airlines logo]()
$287
This Southwest deal was found by Cheapflights users on 8/8. 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 9/199:20 am -
1 stop5h 10m
Sat 9/2611:35 am -
2 stops8h 15m
Deal found 8/8![Southwest logo]()
$282
This Delta deal was found by Cheapflights users on 8/7. 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.
Wed 9/95:15 pm -
1 stop3h 57m
Sat 9/127:20 am -
1 stop5h 55m
Deal found 8/7![Delta logo]()
$313
This Alaska Airlines deal was found by Cheapflights users on 8/10. 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.
Fri 9/188:51 pm -
1 stop11h 55m
Mon 9/2110:28 am -
1 stop8h 17m
Deal found 8/10![Alaska Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/248:20 am -
1 stop5h 28m
Mon 9/282:50 pm -
2 stops44h 51m
Deal found 8/10![Multiple Airlines logo]()
$333
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 10/98:55 pm -
Nonstop2h 45m
Tue 10/133:25 pm -
1 stop5h 05m
Deal found 8/10![Southwest logo]()
$289
This Delta deal was found by Cheapflights users on 8/8. 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.
Sun 9/66:00 am -
1 stop5h 27m
Sat 9/121:09 pm -
1 stop4h 01m
Deal found 8/8![Delta logo]()
$328
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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.
Thu 9/35:30 pm -
Nonstop2h 12m
Tue 9/82:16 pm -
1 stop6h 32m
Deal found 8/6![Alaska Airlines logo]()
$307
This FlightHub deal was found by Cheapflights users on 8/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:54 pm -
2 stops42h 06m
Mon 9/71:45 pm -
2 stops30h 10m
Deal found 8/8![Breeze Airways logo]()
$780
This Southwest deal was found by Cheapflights users on 8/7. 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 9/48:55 pm -
Nonstop2h 00m
Fri 9/114:55 pm -
Nonstop2h 15m
Deal found 8/7![Southwest logo]()
$297
This Delta deal was found by Cheapflights users on 8/9. 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.
Mon 9/215:45 am -
1 stop5h 23m
Sat 9/265:55 pm -
1 stop5h 18m
Deal found 8/9![Delta logo]()
$341
This Alaska Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/35:30 pm -
Nonstop2h 12m
Sun 9/64:17 pm -
1 stop6h 43m
Deal found 8/10![Alaska Airlines logo]()
$317
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/178:20 am -
1 stop5h 28m
Mon 9/214:56 pm -
2 stops40h 42m
Deal found 8/8![Multiple Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 8/9. 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.
Sat 8/299:23 am -
1 stop5h 00m
Tue 9/17:00 am -
1 stop4h 37m
Deal found 8/9![United Airlines logo]()
$473
This Alaska Airlines deal was found by Cheapflights users on 8/6. 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.
Fri 8/286:02 am -
1 stop8h 29m
Wed 9/27:20 am -
1 stop5h 11m
Deal found 8/6![Alaska Airlines logo]()
$327
This Delta deal was found by Cheapflights users on 8/9. 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.
Tue 8/256:00 am -
1 stop5h 27m
Sat 8/291:09 pm -
1 stop3h 56m
Deal found 8/9![Delta logo]()
$360
This Southwest deal was found by Cheapflights users on 8/7. 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.
Mon 9/146:10 pm -
1 stop5h 10m
Fri 9/254:20 pm -
Nonstop2h 35m
Deal found 8/7![Southwest logo]()
$348
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:45 am -
1 stop5h 38m
Wed 9/306:16 am -
1 stop3h 22m
Deal found 8/10![Delta logo]()
$366
This Alaska Airlines deal was found by Cheapflights users on 8/8. 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 9/211:02 am -
1 stop4h 39m
Sun 9/66:21 pm -
1 stop5h 17m
Deal found 8/8![Alaska Airlines logo]()
$348
This Southwest deal was found by Cheapflights users on 8/7. 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 9/32:55 pm -
2 stops6h 45m
Sun 9/611:35 am -
1 stop6h 10m
Deal found 8/7![Southwest logo]()
$352
This Delta deal was found by Cheapflights users on 8/6. 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 8/216:00 am -
1 stop5h 27m
Tue 8/251:09 pm -
2 stops10h 51m
Deal found 8/6![Delta logo]()
$370
This United Airlines deal was found by Cheapflights users on 8/7. 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.
Sun 10/48:00 am -
1 stop4h 45m
Thu 10/88:00 am -
1 stop8h 00m
Deal found 8/7![United Airlines logo]()
$553
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated August 11, 2026 and is based on user searches.
This Southwest deal was found by Cheapflights users on 8/6. 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.
Sun 9/68:30 pm -
Nonstop2h 30m
Fri 9/1110:55 am -
1 stop7h 35m
Deal found 8/6![Southwest logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/710:30 pm -
2 stops12h 59m
Fri 9/112:50 pm -
1 stop8h 57m
Deal found 8/8![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 8/10. 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.
Thu 9/102:00 pm -
1 stop5h 45m
Mon 9/141:55 pm -
1 stop4h 55m
Deal found 8/10![Southwest logo]()
$222
This Frontier deal was found by Cheapflights users on 8/7. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/108:00 am -
1 stop4h 55m
Mon 9/142:50 pm -
1 stop8h 57m
Deal found 8/7![Frontier logo]()
$224
This American Airlines deal was found by Cheapflights users on 8/10. 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.
Thu 9/108:26 pm -
Nonstop2h 41m
Wed 9/166:30 am -
Nonstop2h 50m
Deal found 8/10![American Airlines logo]()
$243
This Southwest deal was found by Cheapflights users on 8/9. 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.
Fri 9/118:55 pm -
Nonstop2h 00m
Sat 9/126:10 am -
Nonstop2h 05m
Deal found 8/9![Southwest logo]()
$223
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:00 pm -
1 stop5h 59m
Sat 9/191:06 pm -
1 stop4h 04m
Deal found 8/10![Delta logo]()
$221
This Southwest deal was found by Cheapflights users on 8/10. 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.
Mon 9/141:55 pm -
2 stops8h 00m
Tue 9/157:05 am -
Nonstop2h 05m
Deal found 8/10![Southwest logo]()
$218
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/178:00 am -
1 stop4h 55m
Sun 9/202:50 pm -
1 stop26h 28m
Deal found 8/8![Frontier logo]()
$227
This Southwest deal was found by Cheapflights users on 8/10. 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.
Fri 9/188:55 pm -
Nonstop2h 00m
Tue 9/2211:30 am -
1 stop7h 15m
Deal found 8/10![Southwest logo]()
$217
This Frontier deal was found by Cheapflights users on 8/6. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:00 am -
1 stop4h 55m
Sun 9/202:50 pm -
1 stop8h 57m
Deal found 8/6![Frontier logo]()
$238
This Kiwi.com deal was found by Cheapflights users on 8/8. 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.
Fri 9/187:22 am -
1 stop9h 39m
Mon 9/216:21 pm -
1 stop18h 38m
Deal found 8/8![Multiple Airlines logo]()
$241
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 August 11, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This Expedia deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/199:31 am -
Nonstop2h 09m
Deal found 8/5![Allegiant Air logo]()
$54
This Kiwi.com deal was found by Cheapflights users on 8/10. 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 10/2810:40 pm -
1 stop15h 17m
Deal found 8/10![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/107:24 pm -
1 stop17h 31m
Deal found 8/8![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/98:39 pm -
1 stop12h 40m
Deal found 8/8![Multiple Airlines logo]()
$87
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 10/86:30 am -
1 stop7h 27m
Deal found 8/8![Frontier logo]()
$91
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 10/78:39 pm -
1 stop17h 18m
Deal found 8/8![Frontier logo]()
$93
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Thu 10/810:40 pm -
1 stop16h 20m
Deal found 8/6![Multiple Airlines logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 11/46:55 pm -
1 stop20h 02m
Deal found 8/7![Frontier logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 8/8. 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 9/105:23 pm -
1 stop17h 27m
Deal found 8/8![Multiple Airlines logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 8/7. 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 9/98:39 pm -
1 stop16h 16m
Deal found 8/7![Frontier logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Sat 8/2910:09 pm -
1 stop11h 13m
Deal found 8/6![Multiple Airlines logo]()
$96
This Kiwi.com deal was found by Cheapflights users on 8/6. 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.
Mon 10/58:00 am -
1 stop4h 55m
Deal found 8/6![Frontier logo]()
$97
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 August 11, 2026.
Round-trip from | $217 (Southwest) |
|---|---|
One-way from | $54 (Expedia) |
Popular in | July |
Cheapest in | January |
Average price | $247 |
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 August 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 Phoenix Sky Harbor Intl - GEG Spokane
PHXGEG
Phoenix Sky Harbor Intl
Thu 10/8
5:35 am-10:50 am
1 stop5h 15m
Spokane
Tue 10/13
3:25 pm-10:10 pm
2 stops6h 45m
$270
PhoenixBoise
PHX Phoenix Sky Harbor Intl - BOI Boise Air Term. Gowen Fld
PHXBOI
Phoenix Sky Harbor Intl
Thu 9/10
12:15 pm-10:55 pm
2 stops9h 40m
Boise Air Term. Gowen Fld
Mon 9/14
7:00 am-12:50 pm
2 stops6h 50m
$276
PhoenixSpokane
PHX Phoenix Sky Harbor Intl - GEG Spokane
PHXGEG
Phoenix Sky Harbor Intl
Fri 10/9
7:24 pm-9:40 pm
1 stop26h 16m
Spokane
Tue 10/13
7:19 am-8:41 pm
1 stop13h 22m
$279
PhoenixSpokane
PHX Phoenix Sky Harbor Intl - GEG Spokane
PHXGEG
Phoenix Sky Harbor Intl
Fri 10/9
8:20 pm-11:01 pm
Nonstop2h 41m
Spokane
Tue 10/13
6:30 am-9:24 am
Nonstop2h 54m
$279
PhoenixBoise
PHX Phoenix Sky Harbor Intl - BOI Boise Air Term. Gowen Fld
PHXBOI
Phoenix Sky Harbor Intl
Sat 9/19
9:20 am-3:30 pm
1 stop5h 10m
Boise Air Term. Gowen Fld
Sat 9/26
11:35 am-6:50 pm
2 stops8h 15m
$282
PhoenixBoise
PHX Phoenix Sky Harbor Intl - BOI Boise Air Term. Gowen Fld
PHXBOI
Phoenix Sky Harbor Intl
Sat 10/17
7:38 am-1:47 pm
1 stop5h 09m
Boise Air Term. Gowen Fld
Mon 10/19
4:18 pm-9:48 pm
1 stop6h 30m
$287
PhoenixSpokane
PHX Phoenix Sky Harbor Intl - GEG Spokane
PHXGEG
Phoenix Sky Harbor Intl
Fri 10/9
8:55 pm-11:40 pm
Nonstop2h 45m
Spokane
Tue 10/13
3:25 pm-8:30 pm
1 stop5h 05m
$289
Quickest round-trip
PhoenixBoise
PHX Phoenix Sky Harbor Intl - BOI Boise Air Term. Gowen Fld
PHXBOI
Phoenix Sky Harbor Intl
Fri 9/4
8:55 pm-11:55 pm
Nonstop2h 00m
Boise Air Term. Gowen Fld
Fri 9/11
4:55 pm-6:10 pm
Nonstop2h 15m
$297
PhoenixHailey
PHX Phoenix Sky Harbor Intl - SUN Hailey Sun Valley-Friedman
PHXSUN
Phoenix Sky Harbor Intl
Fri 9/18
8:51 pm-9:46 am
1 stop11h 55m
Hailey Sun Valley-Friedman
Mon 9/21
10:28 am-5:45 pm
1 stop8h 17m
$301
PhoenixBoise
AZA Phoenix-Mesa Gateway - BOI Boise Air Term. Gowen Fld
AZABOI
Phoenix-Mesa Gateway
Fri 10/2
9:31 am-12:40 pm
Nonstop2h 09m
Boise Air Term. Gowen Fld
Sun 10/4
2:50 pm-8:41 am
2 stops18h 51m
$304
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Phoenix with our price prediction graph.
PHX-BOI
PHX-IDA
PHX-GEG
AZA-BOI
PHX-JAC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Phoenix to Idaho
PH1-USID
PHX-BOI
PHX-IDA
PHX-GEG
AZA-BOI
What is the cheapest month to book a flight from Phoenix to Idaho?
Currently, January is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $177). Flying from Phoenix to Idaho in July is currently the most expensive (average of $368). 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 August 11, 2026.
It’s typically best to fly out from Phoenix to Idaho at noon. Doing so could potentially save you 29% on the flight price compared to flying in the evening, which is usually more expensive.
Weekly flight availability from Phoenix to Idaho
Explore weekly flight availability from Phoenix to Idaho. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated August 11, 2026.
The most flights from PH1 to USID are scheduled on a Monday (6 on average). You will have fewer flight options on Sunday, 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?
Airfare is below average for this route at the moment.
Phoenix to Idaho flights typically cost between $237 and $335 in September.The cheapest round-trip price found within the last 5 days was $217 on Southwest (Sep 18-Sep 22).
How far ahead should I book a flight from Phoenix to Idaho?
Booking 84 days in advance of your planned departure date is, on average, the best time to get cheap flights from Phoenix to Idaho. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest day to fly from Phoenix to Idaho?
Use this chart to determine the cheapest time to fly round-trip from Phoenix to Idaho. Price data was last updated on August 8, 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. Sunday mornings 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 August 11, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Phoenix to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Boarding
8.1
Comfort
8.0
Crew
8.6
Food
7.0
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
8.0
ExcellentLibby,Jun 2026
TUS - LAS
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Phoenix to Idaho
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Idaho by cabin class
Find flights from Phoenix to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Phoenix and Idaho flights
Browse other Phoenix and Idaho flight options. Last updated on August 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 August 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$215 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$99 | Average$453 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$137 | Average$196 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$148 | Average$297 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$157 | Average$274 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$172 | Average$369 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$175 | Average$450 | FlexibilityNo cancel fee | On-time69% |