$115+ Cheap flights from Austin (AUS) 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 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Jun 19 — Jun 261
Round-trip
1 adult, Economy
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Cheapest flights from Austin to IdahoExplore the most affordable flight options available from Austin to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
Explore the most affordable flight options available from Austin to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/248:15 pm
AUS
- BOI
1 stop16h 54m
Frontier
Tue 9/11:04 pm
BOI
- AUS
1 stop19h 09m
Frontier
Deal found 5/20![Frontier logo]()
$208
This Frontier deal was found by Cheapflights users on 5/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 7/281:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/16![Frontier logo]()
$230
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Sat 6/69:13 pm
AUS
- BOI
1 stop16h 25m
Frontier
Tue 6/91:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/16![Frontier logo]()
$234
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Mon 6/158:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Thu 6/181:25 pm
BOI
- AUS
1 stop29h 05m
Frontier
Deal found 5/17![Frontier logo]()
$238
This Expedia deal was found by Cheapflights users on 5/16. 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.
Sun 6/146:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Tue 6/231:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/16![Frontier logo]()
$250
This Frontier deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 7/306:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Sun 8/21:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/20![Frontier logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/198:15 pm
AUS
- BOI
1 stop16h 54m
Frontier
Tue 9/11:04 pm
BOI
- AUS
1 stop19h 09m
Frontier
Deal found 5/20![Frontier logo]()
$259
This Mytrip deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/88:15 pm
AUS
- BOI
1 stop17h 14m
Frontier
Sun 7/121:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/19![Frontier logo]()
$263
This Kiwi.com deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 8/248:15 pm
AUS
- BOI
1 stop16h 54m
Frontier
Thu 8/271:04 pm
BOI
- AUS
1 stop19h 09m
Frontier
Deal found 5/20![Frontier logo]()
$265
This Frontier deal was found by Cheapflights users on 5/17. 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 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Thu 7/231:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/17![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/96:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Sun 7/121:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/18![Frontier logo]()
$269
This Frontier deal was found by Cheapflights users on 5/17. 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.
Wed 7/86:30 am
AUS
- GEG
1 stop7h 07m
Frontier
Wed 7/1512:34 pm
GEG
- AUS
1 stop9h 33m
Frontier
Deal found 5/17![Frontier logo]()
$270
Best flights from Austin to IdahoDiscover carefully curated flight deals from Austin to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
Discover carefully curated flight deals from Austin to Idaho that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 20, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/54:14 pm
AUS
- IDA
1 stop7h 42m
Alaska Airlines
Sat 9/123:57 pm
IDA
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$317
This Delta deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/208:15 am
AUS
- JAC
1 stop5h 01m
Delta
Wed 6/241:15 pm
JAC
- AUS
1 stop7h 17m
Delta
Deal found 5/20![Delta logo]()
$349
This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/165:39 am
AUS
- JAC
1 stop5h 07m
United Airlines
Tue 6/232:44 pm
JAC
- AUS
1 stop6h 13m
United Airlines
Deal found 5/18![United Airlines logo]()
$354
This Southwest deal was found by Cheapflights users on 5/15. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/198:30 pm
AUS
- BOI
1 stop5h 40m
Southwest
Fri 6/267:35 am
BOI
- AUS
1 stop11h 10m
Southwest
Deal found 5/15![Southwest logo]()
$398
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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.
Fri 8/215:49 pm
AUS
- IDA
1 stop20h 17m
Alaska Airlines
Fri 8/286:18 am
IDA
- AUS
1 stop7h 56m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/88:15 am
AUS
- SUN
1 stop7h 16m
Delta
Tue 7/141:10 pm
SUN
- AUS
1 stop7h 20m
Delta
Deal found 5/19![Delta logo]()
$351
This United Airlines deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/235:39 am
AUS
- BOI
1 stop5h 06m
United Airlines
Sat 6/275:46 pm
BOI
- AUS
1 stop4h 58m
United Airlines
Deal found 5/18![United Airlines logo]()
$373
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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.
Sat 8/17:15 am
AUS
- JAC
1 stop7h 16m
Alaska Airlines
Wed 8/53:47 pm
JAC
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/128:15 am
AUS
- SUN
1 stop7h 16m
Delta
Fri 7/173:15 pm
SUN
- AUS
1 stop5h 15m
Delta
Deal found 5/20![Delta logo]()
$351
This Southwest deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/175:55 pm
AUS
- GEG
2 stops8h 10m
Southwest
Wed 6/245:00 am
GEG
- AUS
1 stop5h 55m
Southwest
Deal found 5/18![Southwest logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 5/17. 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.
Sat 8/14:17 pm
AUS
- SUN
1 stop18h 21m
Alaska Airlines
Mon 8/107:43 pm
SUN
- AUS
1 stop18h 31m
Alaska Airlines
Deal found 5/17![Alaska Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/131:40 pm
AUS
- SUN
2 stops9h 27m
Delta
Fri 7/171:10 pm
SUN
- AUS
1 stop7h 20m
Delta
Deal found 5/18![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/41:18 pm
AUS
- GEG
2 stops9h 12m
United Airlines
Tue 7/144:13 pm
GEG
- AUS
1 stop5h 31m
United Airlines
Deal found 5/19![United Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/258:05 pm
AUS
- GEG
1 stop6h 00m
Southwest
Thu 7/306:25 am
GEG
- AUS
2 stops10h 15m
Southwest
Deal found 5/19![Southwest logo]()
$424
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/101:48 pm
AUS
- SUN
2 stops9h 19m
Delta
Tue 7/147:20 am
SUN
- AUS
1 stop6h 30m
Delta
Deal found 5/18![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/41:18 pm
AUS
- GEG
2 stops9h 12m
United Airlines
Wed 7/84:18 pm
GEG
- AUS
1 stop5h 26m
United Airlines
Deal found 5/19![United Airlines logo]()
$396
This Southwest deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/86:35 pm
AUS
- GEG
2 stops8h 45m
Southwest
Wed 6/102:55 pm
GEG
- AUS
1 stop5h 15m
Southwest
Deal found 5/18![Southwest logo]()
$424
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/184:24 pm
AUS
- GEG
1 stop6h 37m
Alaska Airlines
Mon 9/2112:49 pm
GEG
- AUS
1 stop9h 10m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$391
This Delta deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/97:30 am
AUS
- SUN
2 stops8h 01m
Delta
Mon 7/137:20 am
SUN
- AUS
1 stop6h 30m
Delta
Deal found 5/19![Delta logo]()
$356
This United Airlines deal was found by Cheapflights users on 5/16. 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.
Tue 10/274:32 pm
AUS
- IDA
1 stop7h 21m
United Airlines
Sat 10/312:35 pm
IDA
- AUS
2 stops7h 09m
United Airlines
Deal found 5/16![United Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 5/16. 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.
Fri 7/101:48 pm
AUS
- SUN
2 stops9h 19m
Delta
Wed 7/151:10 pm
SUN
- AUS
2 stops9h 19m
Delta
Deal found 5/16![Delta logo]()
$361
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/412:30 pm
AUS
- GEG
2 stops9h 35m
Southwest
Wed 7/86:00 am
GEG
- AUS
2 stops8h 25m
Southwest
Deal found 5/19![Southwest logo]()
$439
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/275:41 pm
AUS
- IDA
1 stop20h 25m
Alaska Airlines
Wed 7/11:43 pm
IDA
- AUS
1 stop9h 48m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$423
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/1110:30 am
AUS
- SUN
2 stops12h 37m
Delta
Wed 7/151:10 pm
SUN
- AUS
2 stops9h 19m
Delta
Deal found 5/18![Delta logo]()
$361
This Southwest deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 7/412:30 pm
AUS
- GEG
2 stops9h 35m
Southwest
Tue 7/146:25 am
GEG
- AUS
2 stops8h 40m
Southwest
Deal found 5/19![Southwest logo]()
$457
This United Airlines deal was found by Cheapflights users on 5/20. Clicking the “Pick Dates” 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 6/65:39 am
AUS
- BOI
1 stop5h 14m
United Airlines
Wed 6/106:30 am
BOI
- AUS
1 stop5h 50m
United Airlines
Deal found 5/20![United Airlines logo]()
$461
This Alaska Airlines deal was found by Cheapflights users on 5/15. 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.
Sat 7/47:59 pm
AUS
- JAC
1 stop20h 08m
Alaska Airlines
Sat 7/113:47 pm
JAC
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 5/15![Alaska Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/127:25 pm
AUS
- BOI
1 stop5h 44m
Delta
Sun 6/141:11 pm
BOI
- AUS
1 stop7h 21m
Delta
Deal found 5/18![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 5/16. 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.
Sun 6/145:35 am
AUS
- BOI
1 stop5h 30m
Southwest
Sun 6/147:50 pm
BOI
- AUS
1 stop5h 00m
Southwest
Deal found 5/16![Southwest logo]()
$459
This Alaska Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:07 pm
AUS
- GEG
1 stop6h 52m
Alaska Airlines
Sat 7/1811:44 am
GEG
- AUS
1 stop10h 47m
Alaska Airlines
Deal found 5/19![Alaska Airlines logo]()
$439
Last-minute flights from Austin to IdahoDiscover last-minute flight deals from Austin to Idaho. Data last updated May 20, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho. Data last updated May 20, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 5/16. 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.
Sat 6/69:13 pm
AUS
- BOI
1 stop16h 25m
Frontier
Tue 6/91:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/16![Frontier logo]()
$234
This Booking.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/19![Frontier logo]()
$302
This Frontier deal was found by Cheapflights users on 5/17. 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 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Thu 7/231:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/17![Frontier logo]()
$268
This Frontier deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Thu 6/181:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/18![Frontier logo]()
$289
This Expedia deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/19![Frontier logo]()
$330
This Expedia deal was found by Cheapflights users on 5/16. 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.
Sun 6/146:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Tue 6/231:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/16![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Mon 6/158:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Thu 6/181:25 pm
BOI
- AUS
1 stop29h 05m
Frontier
Deal found 5/17![Frontier logo]()
$238
This Travelocity deal was found by Cheapflights users on 5/17. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/156:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Fri 6/2612:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/17![Frontier logo]()
$309
This United Airlines deal was found by Cheapflights users on 5/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/1612:55 pm
AUS
- JAC
1 stop5h 59m
United Airlines
Tue 6/234:23 pm
JAC
- AUS
1 stop6h 21m
United Airlines
Deal found 5/17![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 5/17. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/162:31 pm
AUS
- JAC
1 stop6h 11m
Delta
Wed 6/241:15 pm
JAC
- AUS
1 stop7h 17m
Delta
Deal found 5/17![Delta logo]()
$323
This American Airlines deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/166:00 am
AUS
- JAC
1 stop5h 27m
American Airlines
Wed 6/244:14 pm
JAC
- AUS
1 stop6h 44m
American Airlines
Deal found 5/19![American Airlines logo]()
$335
This Priceline deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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.
Wed 6/176:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Wed 6/2412:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/19![Frontier logo]()
$310
One-way flights from Austin to IdahoSearch for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
Search for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated May 20, 2026.
This Frontier deal was found by Cheapflights users on 5/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 5/16![Frontier logo]()
$115
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Deal found 5/15![Frontier logo]()
$126
This Priceline deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” 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 6/186:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Deal found 5/19![Frontier logo]()
$127
This Frontier deal was found by Cheapflights users on 5/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 5/16![Frontier logo]()
$134
This Priceline deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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.
Wed 6/176:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Deal found 5/18![Frontier logo]()
$135
This Trip.com deal was found by Cheapflights users on 5/17. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/138:15 pm
AUS
- BOI
1 stop17h 14m
Frontier
Deal found 5/17![Frontier logo]()
$137
This Booking.com deal was found by Cheapflights users on 5/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/228:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Deal found 5/19![Frontier logo]()
$138
This Booking.com deal was found by Cheapflights users on 5/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/278:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Deal found 5/15![Frontier logo]()
$140
This Booking.com deal was found by Cheapflights users on 5/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/310:28 am
AUS
- BOI
1 stop27h 10m
Frontier
Deal found 5/15![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 5/17. 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.
Sun 7/1912:18 pm
AUS
- GEG
1 stop9h 43m
Multiple Airlines
Deal found 5/17![Multiple Airlines logo]()
$152
This Frontier deal was found by Cheapflights users on 5/17. 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.
Mon 7/136:30 am
AUS
- GEG
1 stop7h 07m
Frontier
Deal found 5/17![Frontier logo]()
$154
This Frontier deal was found by Cheapflights users on 5/18. Clicking the “Pick Dates” 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 7/236:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 5/18![Frontier logo]()
$155
Find flight deals from Austin to Idaho
Keep the following information in mind while searching for Austin to Idaho flight deals. Data was last updated May 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $208 (Kiwi.com) |
One-way from | $115 (Frontier) |
Popular in | March |
Cheapest in | February |
Average price | $388 |
Cheapflights Fare Finder
Customize your flight search to find flights from Austin 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 May 20, 2026.
Use the filters below to find and compare flights from Austin to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinIdaho Falls
AUS - IDA
AUSIDA
Austin Bergstrom
Sat 9/5
4:14 pm-10:56 pm
1 stop7h 42m
Idaho Falls Fanning Field
Sat 9/12
3:57 pm-11:59 pm
1 stop7h 02m
$317
AustinIdaho Falls
AUS - IDA
AUSIDA
Austin Bergstrom
Fri 8/21
5:49 pm-1:06 pm
1 stop20h 17m
Idaho Falls Fanning Field
Fri 8/28
6:18 am-3:14 pm
1 stop7h 56m
$329
AustinJackson
AUS - JAC
AUSJAC
Austin Bergstrom
Sat 8/1
7:15 am-1:31 pm
1 stop7h 16m
Jackson Hole
Wed 8/5
3:47 pm-11:49 pm
1 stop7h 02m
$341
AustinJackson
AUS - JAC
AUSJAC
Austin Bergstrom
Sat 6/20
8:15 am-12:16 pm
1 stop5h 01m
Jackson Hole
Wed 6/24
1:15 pm-9:32 pm
1 stop7h 17m
$349
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Wed 7/8
8:15 am-2:31 pm
1 stop7h 16m
Hailey Sun Valley-Friedman
Tue 7/14
1:10 pm-9:30 pm
1 stop7h 20m
$351
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Sun 7/12
8:15 am-2:31 pm
1 stop7h 16m
Hailey Sun Valley-Friedman
Fri 7/17
3:15 pm-9:30 pm
1 stop5h 15m
$351
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Sat 8/1
4:17 pm-9:38 am
1 stop18h 21m
Hailey Sun Valley-Friedman
Mon 8/10
7:43 pm-3:14 pm
1 stop18h 31m
$351
AustinJackson
AUS - JAC
AUSJAC
Austin Bergstrom
Tue 6/16
5:39 am-9:46 am
1 stop5h 07m
Jackson Hole
Tue 6/23
2:44 pm-9:57 pm
1 stop6h 13m
$354
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Mon 7/13
1:40 pm-10:07 pm
2 stops9h 27m
Hailey Sun Valley-Friedman
Fri 7/17
1:10 pm-9:30 pm
1 stop7h 20m
$356
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Fri 7/10
1:48 pm-10:07 pm
2 stops9h 19m
Hailey Sun Valley-Friedman
Tue 7/14
7:20 am-2:50 pm
1 stop6h 30m
$356
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Austin to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Austin with our price prediction graph.
AUS-BOI
AUS-GEG
AUS-JAC
AUS-IDA
AUS-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 Austin to Idaho
AUS-USID
AUS-BOI
AUS-GEG
AUS-JAC
AUS-IDA
What is the cheapest month to book a flight from Austin to Idaho?
Currently, December is the cheapest month in which you can book a flight from Austin to Idaho (average of $78). Flying from Austin to Idaho in March is currently the most expensive (average of $288). 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.
How much does it cost to fly round-trip from Austin to Idaho?
How far ahead should I book a flight from Austin to Idaho?
The best time to book flights from Austin to Idaho is 49 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
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 May 20, 2026.
Read through reviews of airlines operating flights from Austin to Idaho, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Crew
8.6
Boarding
8.1
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
7.9
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Related info for your journey
Find useful and relevant information for your journey from Austin 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 Austin 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 Austin to Idaho by cabin class
Find flights from Austin to Idaho, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Austin and Idaho flights
Browse other Austin and Idaho flight options. Last updated on May 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Austin to Idaho flights
Consider these flights traveling from Austin to Idaho.
Top 6 airlines flying from Austin to Idaho
Discover the top 6 airlines that operate flights from Austin 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 May 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$78 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$468 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$261 | Average$388 | FlexibilityNo cancel fee | On-time63% |