$58+ 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 4/10. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
apr. 5 — apr. 121
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 marts 6, 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 marts 6, 2026.
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/212:34 pm
PHX
- GEG
Nonstop2h 40m
Frontier
tor. 4/93:40 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/3![Frontier logo]()
$134
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 3/1210:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
søn. 3/1512:40 pm
GEG
- PHX
Nonstop2h 47m
Frontier
Deal found 3/3![Frontier logo]()
$158
This Alaska Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
ons. 4/296:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
lør. 5/27:43 am
BOI
- PHX
1 stop8h 18m
Alaska Airlines
Deal found 3/3![Alaska Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
ons. 4/2910:19 am
PHX
- BOI
Nonstop2h 23m
American Airlines
lør. 5/26:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 3/1![American Airlines logo]()
$178
This Expedia deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/28:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
tor. 4/912:03 pm
BOI
- PHX
1 stop5h 08m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$179
This WAYA deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tir. 3/314:27 pm
PHX
- BOI
1 stop5h 25m
Multiple Airlines
tir. 4/76:48 pm
BOI
- PHX
Nonstop2h 10m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$180
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
ons. 4/297:35 am
PHX
- BOI
2 stops6h 05m
Southwest
ons. 4/295:00 pm
BOI
- PHX
1 stop7h 00m
Southwest
Deal found 3/2![Southwest logo]()
$182
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tor. 4/305:40 pm
PHX
- BOI
1 stop5h 37m
Delta
søn. 5/35:40 am
BOI
- PHX
1 stop6h 10m
Delta
Deal found 3/1![Delta logo]()
$183
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
ons. 4/156:30 am
PHX
- GEG
1 stop5h 57m
Delta
man. 4/205:00 am
GEG
- PHX
1 stop9h 43m
Delta
Deal found 3/1![Delta logo]()
$183
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
lør. 4/1111:05 am
PHX
- BOI
Nonstop2h 05m
Southwest
lør. 4/114:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/1![Southwest logo]()
$185
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
ons. 4/296:30 am
PHX
- BOI
2 stops8h 55m
Southwest
ons. 5/65:00 pm
BOI
- PHX
2 stops6h 25m
Southwest
Deal found 3/2![Southwest logo]()
$187
This Frontier deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
tor. 4/912:05 pm
PHX
- GEG
Nonstop2h 40m
Frontier
man. 4/135:11 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/4![Frontier logo]()
$188
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 marts 6, 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 marts 6, 2026.
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre. 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
man. 4/206:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/94:40 pm
PHX
- BOI
1 stop5h 50m
Southwest
ons. 4/156:40 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/3![Southwest logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
tor. 4/210:00 am
AZA
- BOI
1 stop5h 23m
Allegiant Air
man. 4/65:54 pm
BOI
- AZA
Nonstop2h 09m
Allegiant Air
Deal found 3/2![Allegiant Air logo]()
$218
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tir. 5/195:35 pm
PHX
- BOI
1 stop5h 20m
Delta
lør. 5/236:41 pm
BOI
- PHX
1 stop3h 40m
Delta
Deal found 3/1![Delta logo]()
$238
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
man. 4/137:00 am
PHX
- JAC
1 stop5h 21m
United Airlines
tor. 4/164:15 pm
JAC
- PHX
1 stop6h 54m
United Airlines
Deal found 3/3![United Airlines logo]()
$306
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 4/296:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
lør. 5/27:43 am
BOI
- PHX
1 stop8h 18m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
man. 4/206:10 pm
PHX
- BOI
1 stop5h 35m
Southwest
man. 4/277:55 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/1![Southwest logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
tir. 3/313:21 pm
PHX
- BOI
1 stop7h 26m
Alaska Airlines
tir. 4/78:04 pm
BOI
- PHX
1 stop4h 23m
Alaska Airlines
Deal found 3/4![Alaska Airlines logo]()
$197
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/210:00 am
AZA
- BOI
1 stop5h 23m
Multiple Airlines
søn. 4/55:16 pm
BOI
- AZA
2 stops14h 56m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$455
This Southwest deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
lør. 5/167:00 pm
PHX
- BOI
Nonstop2h 05m
Southwest
tir. 5/194:05 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/4![Southwest logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
man. 3/162:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
fre. 3/206:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/4![Allegiant Air logo]()
$272
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
ons. 5/138:20 pm
PHX
- GEG
Nonstop2h 35m
Southwest
ons. 5/207:00 am
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 3/3![Southwest logo]()
$237
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
fre. 5/295:16 pm
PHX
- JAC
1 stop3h 13m
Delta
lør. 5/3011:35 am
JAC
- PHX
1 stop5h 24m
Delta
Deal found 3/4![Delta logo]()
$289
This Cheapflightsfares deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
fre. 3/132:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
man. 3/166:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/2![Allegiant Air logo]()
$277
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tir. 3/316:17 pm
PHX
- GEG
1 stop5h 42m
Alaska Airlines
ons. 4/157:31 pm
GEG
- PHX
1 stop4h 42m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$257
This United Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tir. 3/246:00 am
PHX
- SUN
1 stop6h 44m
United Airlines
ons. 3/251:29 pm
SUN
- PHX
1 stop5h 30m
United Airlines
Deal found 3/1![United Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
man. 4/206:10 pm
PHX
- BOI
1 stop5h 35m
Southwest
tor. 4/238:50 am
BOI
- PHX
1 stop8h 05m
Southwest
Deal found 3/1![Southwest logo]()
$241
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
fre. 5/295:16 pm
PHX
- JAC
1 stop3h 13m
Delta
man. 6/15:59 pm
JAC
- PHX
2 stops6h 55m
Delta
Deal found 3/4![Delta logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
man. 3/162:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
søn. 3/225:20 pm
BOI
- AZA
1 stop6h 50m
Allegiant Air
Deal found 3/3![Allegiant Air logo]()
$287
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
man. 4/2010:00 am
PHX
- BOI
2 stops7h 20m
Southwest
fre. 4/244:20 pm
BOI
- PHX
1 stop5h 50m
Southwest
Deal found 3/3![Southwest logo]()
$241
This United Airlines deal was found by Cheapflights users on 3/5. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lør. 3/217:29 am
PHX
- JAC
1 stop5h 51m
United Airlines
ons. 3/254:16 pm
JAC
- PHX
1 stop5h 40m
United Airlines
Deal found 3/5![United Airlines logo]()
$337
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
søn. 4/266:05 am
PHX
- JAC
1 stop4h 59m
Delta
ons. 5/61:09 pm
JAC
- PHX
2 stops11h 05m
Delta
Deal found 3/1![Delta logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
fre. 3/202:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
man. 3/236:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 2/28![Allegiant Air logo]()
$308
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
ons. 4/156:05 am
PHX
- IDA
1 stop5h 21m
Delta
tir. 4/286:58 pm
IDA
- PHX
2 stops16h 52m
Delta
Deal found 3/1![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 3/196:45 am
PHX
- JAC
1 stop5h 07m
United Airlines
man. 3/234:16 pm
JAC
- PHX
1 stop6h 55m
United Airlines
Deal found 3/3![United Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/28:25 am
PHX
- BOI
2 stops8h 55m
Southwest
søn. 4/57:25 am
BOI
- PHX
1 stop6h 50m
Southwest
Deal found 3/3![Southwest logo]()
$276
This Alaska Airlines deal was found by Cheapflights users on 3/5. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
fre. 4/176:28 pm
PHX
- GEG
2 stops18h 03m
Alaska Airlines
man. 4/207:19 am
GEG
- PHX
1 stop7h 20m
Alaska Airlines
Deal found 3/5![Alaska Airlines logo]()
$338
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
man. 3/166:40 am
PHX
- TWF
1 stop4h 20m
Multiple Airlines
fre. 3/201:40 pm
TWF
- PHX
1 stop11h 19m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$483
This Delta deal was found by Cheapflights users on 3/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
tir. 4/146:05 am
PHX
- JAC
1 stop4h 59m
Delta
fre. 4/241:00 pm
JAC
- PHX
1 stop6h 22m
Delta
Deal found 3/5![Delta logo]()
$334
This Southwest deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/165:45 am
PHX
- GEG
2 stops7h 05m
Southwest
tir. 4/212:40 pm
GEG
- PHX
2 stops8h 20m
Southwest
Deal found 3/3![Southwest logo]()
$280
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated marts 6, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated marts 6, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 3/1210:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
søn. 3/1512:40 pm
GEG
- PHX
Nonstop2h 47m
Frontier
Deal found 3/3![Frontier logo]()
$158
This WAYA deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tir. 3/314:27 pm
PHX
- BOI
1 stop5h 25m
Multiple Airlines
tir. 4/76:48 pm
BOI
- PHX
Nonstop2h 10m
Multiple Airlines
Deal found 3/1![Multiple Airlines logo]()
$180
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/212:34 pm
PHX
- GEG
Nonstop2h 40m
Frontier
tor. 4/93:40 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/3![Frontier logo]()
$134
This Expedia deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 4/28:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
tor. 4/912:03 pm
BOI
- PHX
1 stop5h 08m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$179
This Frontier deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
tor. 4/912:05 pm
PHX
- GEG
Nonstop2h 40m
Frontier
man. 4/135:11 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/4![Frontier logo]()
$188
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
lør. 4/1111:05 am
PHX
- BOI
Nonstop2h 05m
Southwest
lør. 4/114:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/1![Southwest logo]()
$185
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
ons. 4/156:30 am
PHX
- GEG
1 stop5h 57m
Delta
man. 4/205:00 am
GEG
- PHX
1 stop9h 43m
Delta
Deal found 3/1![Delta logo]()
$183
This Alaska Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
ons. 4/296:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
lør. 5/27:43 am
BOI
- PHX
1 stop8h 18m
Alaska Airlines
Deal found 3/3![Alaska Airlines logo]()
$177
This American Airlines deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
ons. 4/2910:19 am
PHX
- BOI
Nonstop2h 23m
American Airlines
lør. 5/26:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 3/1![American Airlines logo]()
$178
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
ons. 4/297:35 am
PHX
- BOI
2 stops6h 05m
Southwest
ons. 4/295:00 pm
BOI
- PHX
1 stop7h 00m
Southwest
Deal found 3/2![Southwest logo]()
$182
This Southwest deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
ons. 4/296:30 am
PHX
- BOI
2 stops8h 55m
Southwest
ons. 5/65:00 pm
BOI
- PHX
2 stops6h 25m
Southwest
Deal found 3/2![Southwest logo]()
$187
This Delta deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tor. 4/305:40 pm
PHX
- BOI
1 stop5h 37m
Delta
søn. 5/35:40 am
BOI
- PHX
1 stop6h 10m
Delta
Deal found 3/1![Delta logo]()
$183
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 marts 6, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated marts 6, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
fre. 4/102:28 pm
AZA
- BOI
Nonstop2h 07m
Allegiant Air
Deal found 3/1![Allegiant Air logo]()
$58
This Super.com deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
fre. 3/132:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Deal found 3/1![Allegiant Air logo]()
$65
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
lør. 4/410:50 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Deal found 3/1![Southwest logo]()
$66
This Frontier deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
tor. 4/212:34 pm
PHX
- GEG
Nonstop2h 40m
Frontier
Deal found 3/4![Frontier logo]()
$67
This Super.com deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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.
tor. 3/2610:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Deal found 3/4![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 3/1210:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Deal found 3/3![Frontier logo]()
$78
This American Airlines deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
ons. 4/18:30 am
PHX
- BOI
Nonstop2h 30m
American Airlines
Deal found 3/2![American Airlines logo]()
$79
This Priceline deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” 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.
tor. 3/1910:20 am
PHX
- GEG
Nonstop2h 55m
Frontier
Deal found 3/3![Frontier logo]()
$79
This Delta deal was found by Cheapflights users on 3/2. Clicking the “Pick Dates” 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.
tir. 3/315:18 pm
PHX
- BOI
1 stop3h 53m
Delta
Deal found 3/2![Delta logo]()
$89
This CheapOair deal was found by Cheapflights users on 2/28. Clicking the “Pick Dates” 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.
ons. 3/186:50 am
PHX
- BOI
1 stop27h 30m
Frontier
Deal found 2/28![Frontier logo]()
$92
This Southwest deal was found by Cheapflights users on 3/1. Clicking the “Pick Dates” 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.
tir. 4/287:35 am
PHX
- BOI
2 stops7h 50m
Southwest
Deal found 3/1![Southwest logo]()
$94
This Super.com deal was found by Cheapflights users on 3/5. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
ons. 5/136:45 pm
PHX
- GEG
1 stop15h 46m
Frontier
Deal found 3/5![Frontier logo]()
$94
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 marts 6, 2026.
Round-trip from | $134 (Frontier) |
|---|---|
One-way from | $58 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $292 |
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 marts 6, 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
fre. 4/17
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
man. 4/20
6:48 pm-7:58 pm
Nonstop2h 10m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
tor. 4/9
4:40 pm-11:30 pm
1 stop5h 50m
Boise Air Term. Gowen Fld
ons. 4/15
6:40 am-7:45 am
Nonstop2h 05m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
ons. 4/29
6:00 am-1:52 pm
1 stop6h 52m
Boise Air Term. Gowen Fld
lør. 5/2
7:43 am-3:01 pm
1 stop8h 18m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
tir. 3/31
3:21 pm-11:47 pm
1 stop7h 26m
Boise Air Term. Gowen Fld
tir. 4/7
8:04 pm-11:27 pm
1 stop4h 23m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
man. 4/20
6:10 pm-12:45 am
1 stop5h 35m
Boise Air Term. Gowen Fld
man. 4/27
7:55 pm-9:00 pm
Nonstop2h 05m
$207
PhoenixBoise
AZA - BOI
AZABOI
Phoenix-Mesa Gateway
tor. 4/2
10:00 am-4:23 pm
1 stop5h 23m
Boise Air Term. Gowen Fld
man. 4/6
5:54 pm-7:03 pm
Nonstop2h 09m
$218
Quickest round-trip
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
lør. 5/16
7:00 pm-10:05 pm
Nonstop2h 05m
Boise Air Term. Gowen Fld
tir. 5/19
4:05 pm-5:10 pm
Nonstop2h 05m
$222
PhoenixSpokane
PHX - GEG
PHXGEG
Phoenix Sky Harbor Intl
ons. 5/13
8:20 pm-10:55 pm
Nonstop2h 35m
Spokane
ons. 5/20
7:00 am-9:35 am
Nonstop2h 35m
$237
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
tir. 5/19
5:35 pm-11:55 pm
1 stop5h 20m
Boise Air Term. Gowen Fld
lør. 5/23
6:41 pm-9:21 pm
1 stop3h 40m
$238
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
man. 4/20
6:10 pm-12:45 am
1 stop5h 35m
Boise Air Term. Gowen Fld
tor. 4/23
8:50 am-3:55 pm
1 stop8h 05m
$241
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
AZA-BOI
PHX-JAC
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
AZA-BOI
PHX-JAC
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 marts 6, 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 marts 6, 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
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
Reviews
1 / 20
10.0
Excellentrobert,Feb 2026
LAS - SAN
Entertainment
7.0
Comfort
7.8
Crew
8.5
Overall
8.0
Food
7.1
Boarding
8.1
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
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 marts 6, 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 marts 6, 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$200 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$138 | Average$235 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$257 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$156 | Average$356 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$445 | FlexibilityNo cancel fee | On-time69% |