$122+ 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
Jul 23 — Jul 301
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 June 23, 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 June 23, 2026.
This Expedia deal was found by Cheapflights users on 6/20. 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 Expedia 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
Tue 7/211:24 pm
BOI
- AUS
1 stop9h 43m
Frontier
Deal found 6/20![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/281:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$253
This Frontier deal was found by Cheapflights users on 6/19. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 8/181:24 pm
BOI
- AUS
1 stop9h 17m
Frontier
Deal found 6/19![Frontier logo]()
$255
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/292:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 8/41:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$256
This Frontier deal was found by Cheapflights users on 6/20. 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.
Tue 8/46:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Thu 8/2012:24 pm
BOI
- AUS
1 stop6h 06m
Frontier
Deal found 6/20![Frontier logo]()
$259
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/222:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 7/281:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$265
This Frontier deal was found by Cheapflights users on 6/20. 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 8/66:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Thu 8/2012:24 pm
BOI
- AUS
1 stop10h 17m
Frontier
Deal found 6/20![Frontier logo]()
$274
This Frontier deal was found by Cheapflights users on 6/20. 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.
Sun 8/26:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 8/181:24 pm
BOI
- AUS
1 stop9h 17m
Frontier
Deal found 6/20![Frontier logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 8/52:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 8/181:24 pm
BOI
- AUS
1 stop9h 17m
Frontier
Deal found 6/20![Frontier logo]()
$282
This Frontier deal was found by Cheapflights users on 6/20. 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.
Sun 8/26:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Thu 8/2012:24 pm
BOI
- AUS
1 stop10h 17m
Frontier
Deal found 6/20![Frontier logo]()
$291
This Booking.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Tue 8/112:59 pm
AUS
- GEG
1 stop10h 08m
Alaska Airlines
Tue 8/188:15 am
GEG
- AUS
1 stop27h 00m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/27:15 am
AUS
- JAC
1 stop7h 15m
Alaska Airlines
Wed 9/92:10 pm
JAC
- AUS
1 stop8h 49m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$335
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 June 23, 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 June 23, 2026.
This Delta deal was found by Cheapflights users on 6/18. 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 8/3112:20 pm
AUS
- JAC
1 stop7h 35m
Delta
Sat 9/51:10 pm
JAC
- AUS
1 stop7h 21m
Delta
Deal found 6/18![Delta logo]()
$343
This Alaska Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
AUS
- BOI
2 stops10h 32m
Alaska Airlines
Wed 9/27:00 am
BOI
- AUS
2 stops11h 19m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$344
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/116:00 am
AUS
- GEG
2 stops9h 05m
Southwest
Tue 8/181:55 pm
GEG
- AUS
1 stop7h 10m
Southwest
Deal found 6/22![Southwest logo]()
$374
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 11/175:15 am
AUS
- JAC
2 stops11h 28m
United Airlines
Wed 11/182:40 pm
JAC
- AUS
1 stop5h 02m
United Airlines
Deal found 6/22![United Airlines logo]()
$406
This Alaska Airlines deal was found by Cheapflights users on 6/18. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:15 am
AUS
- IDA
1 stop7h 09m
Alaska Airlines
Sat 9/123:57 pm
IDA
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 6/18![Alaska Airlines logo]()
$354
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/186:04 pm
AUS
- BOI
1 stop5h 37m
Delta
Tue 7/216:00 am
BOI
- AUS
1 stop7h 50m
Delta
Deal found 6/21![Delta logo]()
$363
This Southwest deal was found by Cheapflights users on 6/18. 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.
Thu 8/272:50 pm
AUS
- GEG
2 stops9h 50m
Southwest
Tue 9/17:30 am
GEG
- AUS
1 stop5h 35m
Southwest
Deal found 6/18![Southwest logo]()
$391
This Delta deal was found by Cheapflights users on 6/20. 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.
Wed 8/54:25 pm
AUS
- BOI
1 stop7h 35m
Delta
Mon 8/176:00 am
BOI
- AUS
1 stop4h 25m
Delta
Deal found 6/20![Delta logo]()
$388
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 12/55:55 am
AUS
- GEG
2 stops8h 55m
Southwest
Mon 12/76:10 am
GEG
- AUS
1 stop6h 45m
Southwest
Deal found 6/22![Southwest logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Tue 8/116:00 am
AUS
- GEG
1 stop19h 07m
Alaska Airlines
Sun 8/167:45 pm
GEG
- AUS
1 stop17h 29m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$399
This United Airlines deal was found by Cheapflights users on 6/20. 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 7/1812:15 pm
AUS
- BOI
2 stops11h 22m
United Airlines
Tue 7/215:00 am
BOI
- AUS
1 stop5h 15m
United Airlines
Deal found 6/20![United Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/102:50 pm
AUS
- GEG
2 stops9h 50m
Southwest
Wed 8/195:45 am
GEG
- AUS
2 stops8h 10m
Southwest
Deal found 6/20![Southwest logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/294:14 pm
AUS
- IDA
1 stop7h 42m
Alaska Airlines
Tue 9/13:57 pm
IDA
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:15 am
AUS
- IDA
2 stops8h 20m
Delta
Tue 8/256:00 am
IDA
- AUS
2 stops11h 22m
Delta
Deal found 6/22![Delta logo]()
$413
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 8/254:30 pm
AUS
- BOI
1 stop7h 10m
United Airlines
Wed 8/262:44 pm
BOI
- AUS
2 stops7h 30m
United Airlines
Deal found 6/21![United Airlines logo]()
$458
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/186:10 am
AUS
- GEG
1 stop8h 10m
Delta
Mon 9/215:10 am
GEG
- AUS
1 stop6h 16m
Delta
Deal found 6/22![Delta logo]()
$417
This Southwest deal was found by Cheapflights users on 6/20. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/37:00 am
AUS
- BOI
2 stops8h 15m
Southwest
Tue 9/83:40 pm
BOI
- AUS
1 stop5h 20m
Southwest
Deal found 6/20![Southwest logo]()
$420
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/195:39 am
AUS
- JAC
2 stops9h 09m
United Airlines
Wed 7/228:00 am
JAC
- AUS
2 stops12h 57m
United Airlines
Deal found 6/21![United Airlines logo]()
$472
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/261:55 pm
AUS
- GEG
1 stop10h 54m
Alaska Airlines
Thu 8/275:52 am
GEG
- AUS
2 stops14h 35m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$430
This Southwest deal was found by Cheapflights users on 6/19. 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.
Fri 8/712:10 pm
AUS
- BOI
2 stops9h 30m
Southwest
Wed 8/127:40 am
BOI
- AUS
1 stop7h 05m
Southwest
Deal found 6/19![Southwest logo]()
$420
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 12/1712:30 pm
AUS
- GEG
1 stop5h 36m
Delta
Sat 12/197:00 am
GEG
- AUS
1 stop8h 41m
Delta
Deal found 6/22![Delta logo]()
$431
This Alaska Airlines deal was found by Cheapflights users on 6/19. 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.
Tue 7/216:00 am
AUS
- BOI
2 stops10h 35m
Alaska Airlines
Tue 7/2811:42 am
BOI
- AUS
1 stop11h 49m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$436
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 7/1112:15 pm
AUS
- IDA
2 stops9h 52m
United Airlines
Tue 7/145:54 pm
IDA
- AUS
1 stop4h 50m
United Airlines
Deal found 6/18![United Airlines logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/256:00 am
AUS
- BOI
1 stop9h 02m
Alaska Airlines
Wed 8/262:17 pm
BOI
- AUS
2 stops8h 42m
Alaska Airlines
Deal found 6/22![Alaska Airlines logo]()
$443
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sun 7/265:39 am
AUS
- JAC
2 stops9h 09m
United Airlines
Thu 7/307:00 am
JAC
- AUS
1 stop5h 20m
United Airlines
Deal found 6/19![United Airlines logo]()
$493
This Southwest deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 8/236:10 pm
AUS
- BOI
2 stops7h 25m
Southwest
Mon 8/319:05 am
BOI
- AUS
2 stops7h 35m
Southwest
Deal found 6/22![Southwest logo]()
$450
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/188:00 am
AUS
- SUN
1 stop7h 38m
Delta
Sat 9/267:20 am
SUN
- AUS
1 stop4h 50m
Delta
Deal found 6/22![Delta logo]()
$453
This Southwest deal was found by Cheapflights users on 6/18. 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.
Sat 7/41:10 pm
AUS
- BOI
1 stop5h 45m
Southwest
Sat 7/115:40 am
BOI
- AUS
1 stop7h 30m
Southwest
Deal found 6/18![Southwest logo]()
$455
This United Airlines deal was found by Cheapflights users on 6/18. 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.
Sat 8/295:30 am
AUS
- IDA
2 stops12h 46m
United Airlines
Tue 9/12:25 pm
IDA
- AUS
2 stops7h 49m
United Airlines
Deal found 6/18![United Airlines logo]()
$503
This Delta deal was found by Cheapflights users on 6/19. 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 9/21:40 pm
AUS
- SUN
2 stops9h 28m
Delta
Sun 9/67:40 am
SUN
- AUS
1 stop4h 29m
Delta
Deal found 6/19![Delta logo]()
$458
Last-minute flights from Austin to IdahoDiscover last-minute flight deals from Austin to Idaho. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho. Data last updated June 23, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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.
Mon 6/296:30 am
AUS
- GEG
1 stop7h 06m
Multiple Airlines
Fri 7/107:23 am
GEG
- AUS
1 stop8h 41m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$357
This Orbitz deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/296:30 am
AUS
- GEG
1 stop7h 06m
Multiple Airlines
Thu 7/93:49 pm
GEG
- AUS
1 stop6h 42m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$364
This Priceline deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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.
Tue 6/306:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Tue 7/71:24 pm
BOI
- AUS
1 stop9h 43m
Frontier
Deal found 6/22![Frontier logo]()
$330
This Expedia deal was found by Cheapflights users on 6/20. 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 Expedia 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
Tue 7/211:24 pm
BOI
- AUS
1 stop9h 43m
Frontier
Deal found 6/20![Frontier logo]()
$244
This Expedia deal was found by Cheapflights users on 6/20. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:00 am
AUS
- BOI
2 stops10h 35m
Multiple Airlines
Tue 7/211:24 pm
BOI
- AUS
1 stop5h 03m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/186:59 pm
AUS
- GEG
1 stop7h 03m
Delta
Sat 7/251:25 pm
GEG
- AUS
1 stop8h 28m
Delta
Deal found 6/21![Delta logo]()
$369
This Orbitz deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Sun 7/261:24 pm
BOI
- AUS
1 stop23h 06m
Frontier
Deal found 6/21![Frontier logo]()
$309
This Frontier deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/281:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$253
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/222:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 7/281:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$265
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/258:12 pm
AUS
- BOI
1 stop17h 17m
Multiple Airlines
Wed 7/294:27 pm
BOI
- AUS
1 stop7h 04m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$318
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sun 7/265:39 am
AUS
- JAC
1 stop5h 07m
United Airlines
Thu 7/304:23 pm
JAC
- AUS
1 stop6h 21m
United Airlines
Deal found 6/19![United Airlines logo]()
$363
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/292:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Tue 8/41:24 pm
BOI
- AUS
1 stop5h 03m
Frontier
Deal found 6/22![Frontier logo]()
$256
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 June 23, 2026.
Search for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Frontier deal was found by Cheapflights users on 6/19. 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 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 6/19![Frontier logo]()
$122
This Booking.com deal was found by Cheapflights users on 6/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/152:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Deal found 6/18![Frontier logo]()
$133
This Expedia deal was found by Cheapflights users on 6/19. 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 8/276:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Deal found 6/19![Frontier logo]()
$137
This Trip.com deal was found by Cheapflights users on 6/18. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/82:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Deal found 6/18![Frontier logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/52:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Deal found 6/18![Frontier logo]()
$147
This Kiwi.com deal was found by Cheapflights users on 6/19. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/268:15 pm
AUS
- BOI
1 stop16h 14m
Frontier
Deal found 6/19![Frontier logo]()
$149
This Frontier deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 6/21![Frontier logo]()
$154
This Priceline deal was found by Cheapflights users on 6/18. 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.
Tue 7/76:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 6/18![Frontier logo]()
$155
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/202:30 pm
AUS
- JAC
1 stop5h 51m
Delta
Deal found 6/22![Delta logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/292:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Deal found 6/21![Frontier logo]()
$157
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Sun 8/25:39 am
AUS
- JAC
2 stops9h 09m
United Airlines
Deal found 6/19![United Airlines logo]()
$161
This Kiwi.com deal was found by Cheapflights users on 6/18. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/148:26 pm
AUS
- IDA
2 stops37h 32m
Allegiant Air
Deal found 6/18![Allegiant Air logo]()
$164
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 June 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $244 (Expedia) |
One-way from | $122 (Frontier) |
Popular in | June |
Cheapest in | February |
Average price | $516 |
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 June 23, 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
AustinJackson
AUS - JAC
AUSJAC
Austin Bergstrom
Mon 8/31
12:20 pm-6:55 pm
1 stop7h 35m
Jackson Hole
Sat 9/5
1:10 pm-9:31 pm
1 stop7h 21m
$343
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 8/19
6:00 am-3:32 pm
2 stops10h 32m
Boise Air Term. Gowen Fld
Wed 9/2
7:00 am-7:19 pm
2 stops11h 19m
$344
AustinIdaho Falls
AUS - IDA
AUSIDA
Austin Bergstrom
Sat 9/5
7:15 am-1:24 pm
1 stop7h 09m
Idaho Falls Fanning Field
Sat 9/12
3:57 pm-11:59 pm
1 stop7h 02m
$354
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Sat 7/18
6:04 pm-10:41 pm
1 stop5h 37m
Boise Air Term. Gowen Fld
Tue 7/21
6:00 am-2:50 pm
1 stop7h 50m
$363
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Tue 8/11
6:00 am-1:05 pm
2 stops9h 05m
Spokane
Tue 8/18
1:55 pm-11:05 pm
1 stop7h 10m
$374
Quickest round-trip
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 8/5
4:25 pm-11:00 pm
1 stop7h 35m
Boise Air Term. Gowen Fld
Mon 8/17
6:00 am-11:25 am
1 stop4h 25m
$388
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Thu 8/27
2:50 pm-10:40 pm
2 stops9h 50m
Spokane
Tue 9/1
7:30 am-3:05 pm
1 stop5h 35m
$391
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Sat 12/5
5:55 am-12:50 pm
2 stops8h 55m
Spokane
Mon 12/7
6:10 am-2:55 pm
1 stop6h 45m
$391
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Mon 8/10
2:50 pm-10:40 pm
2 stops9h 50m
Spokane
Wed 8/19
5:45 am-3:55 pm
2 stops8h 10m
$396
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Tue 8/11
6:00 am-11:07 pm
1 stop19h 07m
Spokane
Sun 8/16
7:45 pm-3:14 pm
1 stop17h 29m
$399
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 13 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 June 23, 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.
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Overall
7.9
Food
7.0
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
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 June 23, 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 June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$139 | Average$385 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$482 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$456 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$264 | Average$408 | FlexibilityNo cancel fee | On-time63% |