$70+ Cheap flights from Phoenix to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 4/3. Fares are subject to change and may not be available on all flights or dates of travel.
PHX — BOI
Apr 16 — Apr 231
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 March 17, 2026.
Explore the most affordable flight options available from Phoenix to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:07 pm
PHX
- TWF
1 stop14h 53m
Multiple Airlines
Mon 4/201:40 pm
TWF
- PHX
1 stop24h 15m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$186
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/109:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Tue 4/144:05 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/13![Southwest logo]()
$187
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/108:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Tue 4/142:14 pm
BOI
- PHX
Nonstop2h 11m
American Airlines
Deal found 3/15![American Airlines logo]()
$189
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/296:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
Sat 5/21:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$190
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Sat 5/22:14 pm
BOI
- PHX
Nonstop2h 11m
American Airlines
Deal found 3/16![American Airlines logo]()
$191
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:40 am
PHX
- BOI
2 stops6h 45m
Southwest
Sat 4/184:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/13![Southwest logo]()
$192
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1911:53 am
BOI
- PHX
1 stop20h 43m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$194
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/108:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sun 4/126:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Mon 3/162:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Mon 3/236:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$198
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Fri 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Mon 4/2011:58 am
BOI
- PHX
1 stop5h 55m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$200
This Frontier deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 6/45:15 am
PHX
- BOI
1 stop6h 15m
Frontier
Tue 6/912:21 pm
BOI
- PHX
1 stop6h 02m
Frontier
Deal found 3/17![Frontier logo]()
$201
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Sat 5/22:35 pm
PHX
- BOI
Nonstop2h 18m
American Airlines
Sat 5/166:26 pm
BOI
- PHX
Nonstop2h 15m
American Airlines
Deal found 3/13![American Airlines logo]()
$204
Best flights from Phoenix to IdahoDiscover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 17, 2026.
Discover carefully curated flight deals from Phoenix to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 17, 2026.
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/2311:05 am
PHX
- BOI
1 stop4h 55m
Southwest
Sun 4/265:30 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/12![Southwest logo]()
$187
This Alaska Airlines deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Mon 4/206:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 3/17![Alaska Airlines logo]()
$197
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 3/272:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Mon 3/306:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$198
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/97:33 pm
PHX
- BOI
1 stop3h 26m
Delta
Sat 4/116:00 am
BOI
- PHX
1 stop3h 37m
Delta
Deal found 3/12![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/176:00 am
PHX
- SUN
1 stop6h 35m
United Airlines
Fri 4/242:24 pm
SUN
- PHX
1 stop6h 55m
United Airlines
Deal found 3/12![United Airlines logo]()
$301
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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
Thu 4/912:03 pm
BOI
- AZA
2 stops46h 06m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$322
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/53:35 pm
PHX
- BOI
2 stops6h 45m
Southwest
Sat 5/97:05 am
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/16![Southwest logo]()
$192
This Alaska Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/296:00 am
PHX
- BOI
1 stop5h 35m
Alaska Airlines
Sat 5/27:43 am
BOI
- PHX
1 stop8h 18m
Alaska Airlines
Deal found 3/16![Alaska Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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
Sat 4/256:30 am
BOI
- PHX
2 stops6h 25m
Southwest
Deal found 3/14![Southwest logo]()
$202
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/156:00 am
PHX
- BOI
1 stop11h 24m
Alaska Airlines
Sat 4/188:04 pm
BOI
- PHX
1 stop4h 23m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$220
This Delta deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/223:50 pm
PHX
- GEG
1 stop8h 30m
Delta
Sat 4/255:00 am
GEG
- PHX
1 stop5h 50m
Delta
Deal found 3/16![Delta logo]()
$245
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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
Wed 5/2011:35 am
BOI
- PHX
1 stop9h 10m
Southwest
Deal found 3/12![Southwest logo]()
$213
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/98:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sun 4/126:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$232
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:20 pm
PHX
- GEG
Nonstop2h 35m
Southwest
Tue 6/27:00 am
GEG
- PHX
Nonstop2h 35m
Southwest
Deal found 3/12![Southwest logo]()
$237
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/53:43 pm
PHX
- GEG
1 stop6h 37m
Alaska Airlines
Fri 5/83:12 pm
GEG
- PHX
1 stop8h 47m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$241
This Delta deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1512:45 pm
PHX
- GEG
1 stop8h 28m
Delta
Sat 5/231:11 pm
GEG
- PHX
1 stop7h 42m
Delta
Deal found 3/15![Delta logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 5/319:00 am
AZA
- BOI
1 stop5h 10m
Allegiant Air
Thu 6/43:07 pm
BOI
- AZA
1 stop5h 17m
Allegiant Air
Deal found 3/15![Allegiant Air logo]()
$328
This United Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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.
Mon 4/137:00 am
PHX
- JAC
1 stop5h 21m
United Airlines
Mon 4/204:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 3/14![United Airlines logo]()
$329
This Southwest deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/99:55 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Thu 4/168:50 am
BOI
- PHX
1 stop4h 15m
Southwest
Deal found 3/12![Southwest logo]()
$242
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/306:30 am
PHX
- LWS
1 stop17h 38m
Delta
Sat 5/912:30 pm
LWS
- PHX
2 stops10h 30m
Delta
Deal found 3/12![Delta logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 5/16:25 am
PHX
- TWF
1 stop4h 35m
Multiple Airlines
Fri 5/81:45 pm
TWF
- PHX
1 stop10h 39m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$364
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/298:33 am
PHX
- LWS
1 stop15h 35m
Delta
Sat 5/912:30 pm
LWS
- PHX
2 stops10h 30m
Delta
Deal found 3/12![Delta logo]()
$298
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 5/56:00 am
PHX
- SUN
1 stop6h 38m
United Airlines
Sat 5/92:30 pm
SUN
- PHX
1 stop6h 49m
United Airlines
Deal found 3/12![United Airlines logo]()
$361
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/176:05 am
PHX
- SUN
1 stop4h 56m
Delta
Fri 4/243:34 pm
SUN
- PHX
2 stops8h 40m
Delta
Deal found 3/13![Delta logo]()
$326
This United Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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.
Mon 5/119:50 am
PHX
- JAC
1 stop4h 28m
United Airlines
Fri 5/154:15 pm
JAC
- PHX
1 stop5h 04m
United Airlines
Deal found 3/16![United Airlines logo]()
$397
This Alaska Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 3/314:02 pm
PHX
- GEG
1 stop7h 57m
Alaska Airlines
Wed 4/157:19 am
GEG
- PHX
1 stop7h 20m
Alaska Airlines
Deal found 3/12![Alaska Airlines logo]()
$355
This Delta deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 5/196:05 am
PHX
- JAC
1 stop3h 43m
Delta
Sat 5/235:59 pm
JAC
- PHX
1 stop4h 22m
Delta
Deal found 3/13![Delta logo]()
$329
This United Airlines deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 3/277:23 am
PHX
- SUN
1 stop5h 21m
United Airlines
Tue 3/317:00 am
SUN
- PHX
1 stop6h 37m
United Airlines
Deal found 3/12![United Airlines logo]()
$421
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” 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 4/102:28 pm
AZA
- BOI
Nonstop2h 07m
Multiple Airlines
Sun 4/125:13 pm
BOI
- AZA
2 stops14h 59m
Multiple Airlines
Deal found 3/17![Multiple Airlines logo]()
$514
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 3/202:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Sun 3/225:20 pm
BOI
- AZA
1 stop6h 50m
Allegiant Air
Deal found 3/14![Allegiant Air logo]()
$518
Last-minute flights from Phoenix to IdahoDiscover last-minute flight deals from Phoenix to Idaho. Data last updated March 17, 2026 and is based on user searches.
Discover last-minute flight deals from Phoenix to Idaho. Data last updated March 17, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 3/272:01 pm
AZA
- BOI
Nonstop2h 12m
Allegiant Air
Mon 3/306:03 pm
BOI
- AZA
Nonstop2h 10m
Allegiant Air
Deal found 3/13![Allegiant Air logo]()
$198
This Gotogate deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/86:52 pm
PHX
- GEG
1 stop15h 29m
Frontier
Fri 4/105:11 pm
GEG
- PHX
Nonstop2h 33m
Frontier
Deal found 3/15![Frontier logo]()
$207
This American Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 4/108:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Tue 4/142:14 pm
BOI
- PHX
Nonstop2h 11m
American Airlines
Deal found 3/15![American Airlines logo]()
$189
This Alaska Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/108:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sun 4/126:48 pm
BOI
- PHX
Nonstop2h 10m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$197
This Alaska Airlines deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Sat 4/186:32 am
BOI
- PHX
1 stop5h 01m
Alaska Airlines
Deal found 3/15![Alaska Airlines logo]()
$187
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:40 am
PHX
- BOI
2 stops6h 45m
Southwest
Sat 4/184:50 pm
BOI
- PHX
Nonstop2h 05m
Southwest
Deal found 3/13![Southwest logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:07 pm
PHX
- TWF
1 stop14h 53m
Multiple Airlines
Mon 4/201:40 pm
TWF
- PHX
1 stop24h 15m
Multiple Airlines
Deal found 3/14![Multiple Airlines logo]()
$186
This Expedia deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” 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 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Multiple Airlines
Sun 4/1911:53 am
BOI
- PHX
1 stop20h 43m
Multiple Airlines
Deal found 3/16![Multiple Airlines logo]()
$194
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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.
Fri 4/178:40 pm
PHX
- BOI
Nonstop2h 18m
Alaska Airlines
Mon 4/2011:58 am
BOI
- PHX
1 stop5h 55m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$200
This Delta deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” 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 4/246:30 am
PHX
- GEG
1 stop8h 19m
Delta
Mon 4/273:30 pm
GEG
- PHX
1 stop7h 48m
Delta
Deal found 3/12![Delta logo]()
$205
This CheapOair deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 4/296:00 am
PHX
- BOI
1 stop6h 52m
Alaska Airlines
Sat 5/21:25 pm
BOI
- PHX
Nonstop2h 11m
Alaska Airlines
Deal found 3/13![Alaska Airlines logo]()
$190
This American Airlines deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Sat 5/22:14 pm
BOI
- PHX
Nonstop2h 11m
American Airlines
Deal found 3/16![American Airlines logo]()
$191
One-way flights from Phoenix to IdahoSearch for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
Search for one-way flight options from Phoenix to Idaho. Find affordable one-way fares based on user searches. Data last updated March 17, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/31:57 pm
AZA
- BOI
Nonstop2h 07m
Allegiant Air
Deal found 3/17![Allegiant Air logo]()
$70
This Southwest deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” 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 5/1210:15 am
PHX
- BOI
Nonstop2h 05m
Southwest
Deal found 3/13![Southwest logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 3/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/228:07 pm
PHX
- GEG
1 stop24h 22m
Multiple Airlines
Deal found 3/12![Multiple Airlines logo]()
$87
This Southwest deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/187:00 pm
PHX
- BOI
Nonstop2h 05m
Southwest
Deal found 3/14![Southwest logo]()
$89
This American Airlines deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/298:25 pm
PHX
- BOI
Nonstop2h 16m
American Airlines
Deal found 3/13![American Airlines logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/156:51 pm
PHX
- BOI
1 stop15h 17m
Frontier
Deal found 3/16![Frontier logo]()
$94
This Alaska Airlines deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” 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 4/143:21 pm
PHX
- BOI
1 stop7h 26m
Alaska Airlines
Deal found 3/14![Alaska Airlines logo]()
$99
This Super.com deal was found by Cheapflights users on 3/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/85:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Deal found 3/14![Frontier logo]()
$99
This Frontier deal was found by Cheapflights users on 3/15. Clicking the “Pick Dates” 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 5/155:15 am
PHX
- GEG
1 stop6h 23m
Frontier
Deal found 3/15![Frontier logo]()
$100
This Kiwi.com deal was found by Cheapflights users on 3/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:07 pm
PHX
- GEG
1 stop24h 22m
Multiple Airlines
Deal found 3/13![Multiple Airlines logo]()
$101
This CheapOair deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/204:29 pm
PHX
- BOI
1 stop19h 01m
Frontier
Deal found 3/16![Frontier logo]()
$102
This Southwest deal was found by Cheapflights users on 3/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:35 am
PHX
- BOI
2 stops7h 50m
Southwest
Deal found 3/16![Southwest logo]()
$104
Find flight deals from Phoenix to Idaho
Keep the following information in mind while searching for Phoenix to Idaho flight deals. Data was last updated March 17, 2026.
Round-trip from | $186 (Kiwi.com) |
|---|---|
One-way from | $70 (Kiwi.com) |
Popular in | December |
Cheapest in | January |
Average price | $318 |
Cheapflights Fare Finder
Customize your flight search to find flights from Phoenix to Idaho that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 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
Thu 4/23
11:05 am-5:00 pm
1 stop4h 55m
Boise Air Term. Gowen Fld
Sun 4/26
5:30 am-6:35 am
Nonstop2h 05m
$187
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Tue 5/5
3:35 pm-11:20 pm
2 stops6h 45m
Boise Air Term. Gowen Fld
Sat 5/9
7:05 am-8:10 am
Nonstop2h 05m
$192
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Fri 4/17
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Mon 4/20
6:48 pm-7:58 pm
Nonstop2h 10m
$197
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 4/29
6:00 am-12:35 pm
1 stop5h 35m
Boise Air Term. Gowen Fld
Sat 5/2
7:43 am-3:01 pm
1 stop8h 18m
$197
Quickest round-trip
PhoenixBoise
AZA - BOI
AZABOI
Phoenix-Mesa Gateway
Fri 3/27
2:01 pm-5:13 pm
Nonstop2h 12m
Boise Air Term. Gowen Fld
Mon 3/30
6:03 pm-7:13 pm
Nonstop2h 10m
$198
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 4/23
9:55 pm-1:00 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Sat 4/25
6:30 am-11:55 am
2 stops6h 25m
$202
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 4/9
7:33 pm-11:59 pm
1 stop3h 26m
Boise Air Term. Gowen Fld
Sat 4/11
6:00 am-8:37 am
1 stop3h 37m
$207
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Mon 5/18
9:55 pm-1:00 am
Nonstop2h 05m
Boise Air Term. Gowen Fld
Wed 5/20
11:35 am-7:45 pm
1 stop9h 10m
$213
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Wed 4/15
6:00 am-6:24 pm
1 stop11h 24m
Boise Air Term. Gowen Fld
Sat 4/18
8:04 pm-11:27 pm
1 stop4h 23m
$220
PhoenixBoise
PHX - BOI
PHXBOI
Phoenix Sky Harbor Intl
Thu 4/9
8:40 pm-11:58 pm
Nonstop2h 18m
Boise Air Term. Gowen Fld
Sun 4/12
6:48 pm-7:58 pm
Nonstop2h 10m
$232
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Phoenix to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Phoenix with our price prediction graph.
PHX-BOI
AZA-BOI
PHX-SUN
PHX-GEG
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
AZA-BOI
PHX-SUN
PHX-GEG
What is the cheapest month to book a flight from Phoenix to Idaho?
Currently, October is the cheapest month in which you can book a flight from Phoenix to Idaho (average of $84). Flying from Phoenix to Idaho in December is currently the most expensive (average of $165). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from PHX to ID?
Find hourly flight availability from Phoenix to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated March 17, 2026.
It’s typically best to fly out from Phoenix to Idaho at noon. Doing so could potentially save you 23% 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 March 14, 2026.
Travelers seeking maximum savings on their Phoenix to Idaho flight should consider departing on Thursday afternoons when fares are most often at their lowest. Monday evenings flights should be avoided if possible as fares are typically the most expensive at this time.
Reviews of airlines servicing Idaho
Get insights into the airlines that provide service to Idaho. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho. Reviews last updated March 17, 2026.
Peruse reviews from past customers who have flown with Southwest,Alaska Airlines, andDelta from Phoenix to Idaho to help guide your decision. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Food
7.0
Overall
8.0
Entertainment
7.5
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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 March 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Phoenix to Idaho flights
Consider these flights traveling from Phoenix to Idaho.
Top 7 airlines flying from Phoenix to Idaho
Discover the top 7 airlines that operate flights from Phoenix to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$81 | Average$409 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$82 | Average$165 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$124 | Average$207 | FlexibilityNo cancel fee | On-time85% | |
| Cheapest$137 | Average$237 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$151 | Average$253 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$156 | Average$356 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$290 | Average$445 | FlexibilityNo cancel fee | On-time69% |