$62+ 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 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Mar 29 — Apr 51
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 February 27, 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 February 27, 2026.
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/293:50 pm
PHX
- BOI
1 stop5h 34m
Delta
Sat 5/25:40 am
BOI
- PHX
1 stop6h 10m
Delta
Deal found 2/24![Delta logo]()
$145
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/316:15 am
PHX
- GEG
1 stop6h 45m
Delta
Wed 4/153:30 pm
GEG
- PHX
1 stop7h 48m
Delta
Deal found 2/25![Delta logo]()
$163
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/156:30 am
PHX
- GEG
1 stop5h 57m
Delta
Sat 4/187:15 am
GEG
- PHX
1 stop9h 30m
Delta
Deal found 2/25![Delta logo]()
$164
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/305:40 pm
PHX
- BOI
1 stop5h 37m
Delta
Sun 5/35:40 am
BOI
- PHX
1 stop6h 10m
Delta
Deal found 2/24![Delta logo]()
$165
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/176:30 am
PHX
- GEG
1 stop5h 57m
Delta
Mon 4/205:00 am
GEG
- PHX
1 stop5h 50m
Delta
Deal found 2/24![Delta logo]()
$165
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/297:20 am
PHX
- BOI
1 stop7h 13m
Alaska Airlines
Sat 5/21:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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
Mon 4/136:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$177
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 5/1912:45 pm
PHX
- BOI
1 stop8h 28m
Delta
Sat 5/238:56 am
BOI
- PHX
1 stop8h 41m
Delta
Deal found 2/24![Delta logo]()
$178
This WAYA deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/74:27 pm
PHX
- BOI
1 stop5h 25m
Multiple Airlines
Mon 4/136:48 pm
BOI
- PHX
Nonstop2h 10m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$179
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/292:35 pm
PHX
- BOI
Nonstop2h 18m
American Airlines
Sat 5/26:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 2/25![American Airlines logo]()
$180
This Alaska Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/148:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sun 4/196:00 am
BOI
- PHX
1 stop18h 52m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$181
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/308:33 am
PHX
- BOI
1 stop6h 41m
Delta
Sat 5/23:44 pm
BOI
- PHX
1 stop8h 34m
Delta
Deal found 2/26![Delta logo]()
$182
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 February 27, 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 February 27, 2026.
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 4/176:30 am
PHX
- GEG
1 stop5h 57m
Delta
Sun 4/193:30 pm
GEG
- PHX
1 stop6h 21m
Delta
Deal found 2/23![Delta logo]()
$165
This Alaska Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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
Mon 4/136:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$177
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 4/239:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sun 4/265:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 2/23![Southwest logo]()
$196
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 4/37:10 am
PHX
- JAC
1 stop5h 46m
United Airlines
Tue 4/74:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 2/23![United Airlines logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/132:28 pm
AZA
- BOI
Nonstop2h 07m
Allegiant Air
Thu 4/233:13 pm
BOI
- AZA
1 stop6h 01m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$263
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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.
Tue 3/246:19 pm
PHX
- SUN
Nonstop2h 17m
American Airlines
Wed 3/257:40 am
SUN
- PHX
Nonstop2h 27m
American Airlines
Deal found 2/25![American Airlines logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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
Multiple Airlines
Sun 4/55:16 pm
BOI
- AZA
2 stops14h 56m
Multiple Airlines
Deal found 2/25![Multiple Airlines logo]()
$393
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/217:40 am
PHX
- BOI
2 stops6h 00m
Southwest
Tue 4/215:00 pm
BOI
- PHX
1 stop4h 30m
Southwest
Deal found 2/26![Southwest logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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
Wed 4/87:20 am
BOI
- PHX
2 stops17h 07m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$210
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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
Tue 4/75:50 pm
JAC
- PHX
1 stop6h 49m
Delta
Deal found 2/27![Delta logo]()
$225
This Alaska Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/39:20 am
PHX
- BOI
1 stop13h 36m
Alaska Airlines
Sun 4/56:32 am
BOI
- PHX
1 stop5h 01m
Alaska Airlines
Deal found 2/25![Alaska Airlines logo]()
$211
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/259:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 3/3112:25 pm
BOI
- PHX
1 stop6h 40m
Southwest
Deal found 2/23![Southwest logo]()
$212
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/251:40 pm
PHX
- JAC
1 stop4h 22m
Delta
Sat 3/285:50 pm
JAC
- PHX
1 stop5h 31m
Delta
Deal found 2/23![Delta logo]()
$225
This Southwest deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 5/268:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Thu 5/285:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 2/27![Southwest logo]()
$216
This Kiwi.com deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 3/232:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Fri 3/276:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 2/27![Allegiant Air logo]()
$272
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/286:00 am
PHX
- JAC
1 stop5h 10m
Delta
Sat 3/285:50 pm
JAC
- PHX
1 stop5h 31m
Delta
Deal found 2/23![Delta logo]()
$225
This United Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/246:00 am
PHX
- SUN
1 stop6h 44m
United Airlines
Wed 3/252:33 pm
SUN
- PHX
1 stop5h 06m
United Airlines
Deal found 2/25![United Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/132:28 pm
AZA
- BOI
Nonstop2h 07m
Allegiant Air
Sun 4/195:38 pm
BOI
- AZA
1 stop5h 26m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$287
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/265:35 pm
PHX
- BOI
1 stop5h 10m
Delta
Sun 3/295:52 am
BOI
- PHX
1 stop7h 00m
Delta
Deal found 2/23![Delta logo]()
$242
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 5/162:55 pm
PHX
- BOI
2 stops7h 20m
Southwest
Tue 5/195:15 pm
BOI
- PHX
1 stop6h 10m
Southwest
Deal found 2/23![Southwest logo]()
$247
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/128:48 pm
AZA
- BOI
2 stops40h 12m
Allegiant Air
Mon 3/236:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$294
This Southwest deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 5/189:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Sat 5/237:05 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 2/25![Southwest logo]()
$250
This Delta deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/256:00 am
PHX
- BOI
1 stop5h 05m
Delta
Tue 3/315:52 am
BOI
- PHX
1 stop19h 06m
Delta
Deal found 2/23![Delta logo]()
$252
This United Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/236:00 am
PHX
- JAC
1 stop6h 48m
United Airlines
Wed 5/274:23 pm
JAC
- PHX
1 stop5h 07m
United Airlines
Deal found 2/26![United Airlines logo]()
$346
This Alaska Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 7/314:00 pm
PHX
- GEG
1 stop4h 59m
Alaska Airlines
Wed 8/55:07 am
GEG
- PHX
1 stop7h 52m
Alaska Airlines
Deal found 2/23![Alaska Airlines logo]()
$327
This Kiwi.com deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 4/1210:00 am
AZA
- BOI
1 stop5h 23m
Allegiant Air
Sun 4/195:38 pm
BOI
- AZA
1 stop5h 26m
Allegiant Air
Deal found 2/25![Allegiant Air logo]()
$321
This Delta deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 5/206:05 am
PHX
- JAC
1 stop3h 43m
Delta
Sat 5/235:59 pm
JAC
- PHX
1 stop4h 22m
Delta
Deal found 2/26![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 3/266:00 am
PHX
- IDA
1 stop6h 48m
American Airlines
Sun 3/296:05 am
IDA
- PHX
Nonstop2h 27m
American Airlines
Deal found 2/26![American Airlines logo]()
$446
This United Airlines deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/257:23 am
PHX
- IDA
1 stop5h 07m
United Airlines
Fri 4/35:20 pm
IDA
- PHX
1 stop5h 49m
United Airlines
Deal found 2/23![United Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/247:20 am
PHX
- GEG
2 stops7h 24m
Alaska Airlines
Sun 4/265:00 am
GEG
- PHX
1 stop6h 14m
Alaska Airlines
Deal found 2/24![Alaska Airlines logo]()
$339
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated February 27, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated February 27, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/272:35 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Mon 3/25:37 pm
BOI
- AZA
Nonstop2h 16m
Allegiant Air
Deal found 2/24![Allegiant Air logo]()
$201
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/179:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 3/244:30 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 2/23![Southwest logo]()
$167
This WAYA deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/244:27 pm
PHX
- BOI
1 stop5h 25m
Multiple Airlines
Tue 3/316:48 pm
BOI
- PHX
Nonstop2h 10m
Multiple Airlines
Deal found 2/24![Multiple Airlines logo]()
$202
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/259:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 3/316:05 am
BOI
- PHX
Nonstop2h 10m
Southwest
Deal found 2/23![Southwest logo]()
$192
This American Airlines deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/258:20 pm
PHX
- BOI
Nonstop2h 18m
American Airlines
Tue 3/316:33 pm
BOI
- PHX
Nonstop2h 21m
American Airlines
Deal found 2/25![American Airlines logo]()
$214
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/266:15 am
PHX
- GEG
1 stop6h 45m
Delta
Tue 3/319:40 am
GEG
- PHX
1 stop7h 00m
Delta
Deal found 2/25![Delta logo]()
$164
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/2610:50 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 3/316:05 am
BOI
- PHX
Nonstop2h 10m
Southwest
Deal found 2/23![Southwest logo]()
$177
This Super.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/2610:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Thu 4/23:59 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 2/24![Frontier logo]()
$195
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/2710:50 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Mon 3/305:25 am
BOI
- PHX
Nonstop2h 10m
Southwest
Deal found 2/23![Southwest logo]()
$197
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/277:33 pm
PHX
- BOI
1 stop3h 26m
Delta
Mon 3/304:40 pm
BOI
- PHX
1 stop8h 18m
Delta
Deal found 2/25![Delta logo]()
$211
This Delta deal was found by Cheapflights users on 2/25. Clicking the “Pick Dates” 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 3/316:15 am
PHX
- GEG
1 stop6h 45m
Delta
Wed 4/153:30 pm
GEG
- PHX
1 stop7h 48m
Delta
Deal found 2/25![Delta logo]()
$163
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/316:15 am
PHX
- GEG
1 stop6h 45m
Delta
Tue 5/125:37 pm
GEG
- PHX
1 stop5h 23m
Delta
Deal found 2/24![Delta logo]()
$205
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 February 27, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated February 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 2/23![Allegiant Air logo]()
$62
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 3/132:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Deal found 2/24![Allegiant Air logo]()
$66
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/293:50 pm
PHX
- BOI
1 stop5h 34m
Delta
Deal found 2/24![Delta logo]()
$70
This Southwest deal was found by Cheapflights users on 2/26. Clicking the “Pick Dates” 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 4/78:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Deal found 2/26![Southwest logo]()
$74
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/256:30 am
PHX
- BOI
1 stop5h 42m
Delta
Deal found 2/24![Delta logo]()
$76
This Super.com deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/1910:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Deal found 2/23![Frontier logo]()
$78
This Southwest deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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 3/319:25 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Deal found 2/23![Southwest logo]()
$79
This Priceline deal was found by Cheapflights users on 2/23. Clicking the “Pick Dates” 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.
Thu 3/1210:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Deal found 2/23![Frontier logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 2/24![Multiple Airlines logo]()
$82
This CheapOair deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 4/295:00 am
PHX
- BOI
1 stop6h 35m
Alaska Airlines
Deal found 2/27![Alaska Airlines logo]()
$84
This Delta deal was found by Cheapflights users on 2/24. Clicking the “Pick Dates” 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 4/412:55 pm
PHX
- BOI
1 stop8h 09m
Delta
Deal found 2/24![Delta logo]()
$89
This Delta deal was found by Cheapflights users on 2/27. Clicking the “Pick Dates” 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 3/245:18 pm
PHX
- SUN
1 stop3h 32m
Delta
Deal found 2/27![Delta logo]()
$89
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 February 27, 2026.
Round-trip from | $145 (Delta) |
|---|---|
One-way from | $62 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $263 |
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 February 27, 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
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
Fri 4/17
6:30 am-12:27 pm
1 stop5h 57m
Spokane
Sun 4/19
3:30 pm-9:51 pm
1 stop6h 21m
$165
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 4/7
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Mon 4/13
6:48 pm-7:58 pm
Nonstop2h 10m
$177
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 4/23
9:55 pm-1:00 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Sun 4/26
5:30 am-6:35 am
Nonstop2h 05m
$196
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 4/21
7:40 am-2:40 pm
2 stops6h 00m
Boise Air Term. Gowen Fld
Tue 4/21
5:00 pm-8:30 pm
1 stop4h 30m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 4/7
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Wed 4/8
7:20 am-11:27 pm
2 stops17h 07m
$210
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 4/3
9:20 am-11:56 pm
1 stop13h 36m
Boise Air Term. Gowen Fld
Sun 4/5
6:32 am-10:33 am
1 stop5h 01m
$211
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 3/25
9:25 pm-12:30 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Tue 3/31
12:25 pm-6:05 pm
1 stop6h 40m
$212
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 5/26
8:25 pm-11:30 pm
Nonstop2h 05m
Boise Air Term. Gowen Fld
Thu 5/28
5:30 am-6:35 am
Nonstop2h 05m
$216
PhoenixJackson
PHX - JAC
PHXJAC
Phoenix Sky Harbor Intl
Fri 4/3
9:42 am-4:47 pm
1 stop6h 05m
Jackson Hole
Tue 4/7
5:50 pm-11:39 pm
1 stop6h 49m
$225
PhoenixJackson
PHX - JAC
PHXJAC
Phoenix Sky Harbor Intl
Wed 3/25
1:40 pm-7:02 pm
1 stop4h 22m
Jackson Hole
Sat 3/28
5:50 pm-10:21 pm
1 stop5h 31m
$225
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Phoenix with our price prediction graph.
AZA-BOI
PHX-BOI
PHX-GEG
PHX-SUN
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
AZA-BOI
PHX-BOI
PHX-GEG
PHX-SUN
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 February 27, 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 February 27, 2026.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Comfort
7.8
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Related info for your journey
Find useful and relevant information for your journey from Phoenix to Idaho. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Phoenix to Idaho
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Phoenix to Idaho by cabin class
Find flights from Phoenix to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Phoenix and Idaho flights
Browse other Phoenix and Idaho flight options. Last updated on February 27, 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 February 27, 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$197 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$139 | Average$238 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$149 | Average$252 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$156 | Average$356 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$247 | Average$445 | FlexibilityNo cancel fee | On-time69% |