$106+ 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 8/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Aug 22 — Aug 291
Round-trip
1 adult, Economy
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Find cheap flights from Austin to Idaho with Cheapflights
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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 July 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 July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 8/2912:47 pm
AUS
- GEG
1 stop22h 35m
Multiple Airlines
Thu 9/1010:09 am
GEG
- AUS
1 stop8h 56m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Thu 8/2712:24 pm
BOI
- AUS
1 stop6h 06m
Frontier
Deal found 7/22![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 8/2912:47 pm
AUS
- GEG
1 stop22h 35m
Multiple Airlines
Sun 9/1310:09 am
GEG
- AUS
2 stops35h 50m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$239
This Expedia deal was found by Cheapflights users on 7/19. 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.
Tue 8/116:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 8/181:24 pm
BOI
- AUS
1 stop5h 06m
Frontier
Deal found 7/19![Frontier logo]()
$240
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Thu 9/176:45 am
AUS
- BOI
1 stop6h 19m
Frontier
Sun 9/203:52 pm
BOI
- AUS
1 stop18h 44m
Frontier
Deal found 7/19![Frontier logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/266:15 am
AUS
- GEG
2 stops29h 07m
Multiple Airlines
Thu 9/1010:09 am
GEG
- AUS
1 stop8h 56m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 9/168:16 pm
AUS
- BOI
1 stop16h 48m
Frontier
Tue 9/2212:59 pm
BOI
- AUS
1 stop10h 00m
Frontier
Deal found 7/18![Frontier logo]()
$264
This Frontier deal was found by Cheapflights users on 7/19. 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.
Thu 9/36:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Sun 9/612:24 pm
BOI
- AUS
1 stop10h 17m
Frontier
Deal found 7/19![Frontier logo]()
$268
This Orbitz deal was found by Cheapflights users on 7/21. 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.
Thu 9/106:45 am
AUS
- BOI
1 stop6h 19m
Multiple Airlines
Wed 9/166:23 am
BOI
- AUS
1 stop7h 58m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$270
This Priceline deal was found by Cheapflights users on 7/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:15 am
AUS
- BOI
1 stop7h 14m
Multiple Airlines
Tue 8/256:23 am
BOI
- AUS
1 stop7h 48m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$275
This Kiwi.com deal was found by Cheapflights users on 7/19. 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.
Thu 9/176:45 am
AUS
- GEG
2 stops29h 23m
Multiple Airlines
Thu 9/2410:09 am
GEG
- AUS
1 stop8h 56m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/266:15 am
AUS
- GEG
2 stops29h 07m
Multiple Airlines
Sun 9/1310:09 am
GEG
- AUS
1 stop23h 27m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$304
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 July 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 July 23, 2026.
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:41 pm
AUS
- BOI
1 stop7h 07m
Alaska Airlines
Wed 9/21:15 pm
BOI
- AUS
1 stop8h 59m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$299
This Southwest deal was found by Cheapflights users on 7/22. 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.
Thu 9/1012:10 pm
AUS
- BOI
2 stops9h 30m
Southwest
Wed 9/163:40 pm
BOI
- AUS
1 stop5h 20m
Southwest
Deal found 7/22![Southwest logo]()
$304
This Delta deal was found by Cheapflights users on 7/19. 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.
Sat 8/156:05 am
AUS
- GEG
1 stop8h 53m
Delta
Sat 8/221:20 pm
GEG
- AUS
1 stop6h 11m
Delta
Deal found 7/19![Delta logo]()
$359
This United Airlines deal was found by Cheapflights users on 7/22. 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 8/184:30 pm
AUS
- BOI
1 stop6h 07m
United Airlines
Wed 9/210:31 am
BOI
- AUS
2 stops9h 36m
United Airlines
Deal found 7/22![United Airlines logo]()
$394
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:55 pm
AUS
- BOI
2 stops7h 50m
Southwest
Tue 8/257:40 am
BOI
- AUS
2 stops7h 15m
Southwest
Deal found 7/21![Southwest logo]()
$309
This Alaska Airlines deal was found by Cheapflights users on 7/18. 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.
Tue 10/63:38 pm
AUS
- BOI
1 stop9h 21m
Alaska Airlines
Sat 10/108:25 am
BOI
- AUS
1 stop8h 39m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$325
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/174:55 pm
AUS
- BOI
2 stops7h 40m
Southwest
Mon 8/313:50 pm
BOI
- AUS
2 stops7h 35m
Southwest
Deal found 7/21![Southwest logo]()
$329
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
AUS
- GEG
1 stop19h 07m
Alaska Airlines
Tue 8/257:03 am
GEG
- AUS
1 stop13h 24m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 7/20. 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.
Tue 8/44:25 pm
AUS
- BOI
1 stop7h 35m
Delta
Fri 8/74:00 pm
BOI
- AUS
1 stop6h 32m
Delta
Deal found 7/20![Delta logo]()
$390
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 8/2112:55 pm
AUS
- JAC
1 stop5h 54m
United Airlines
Fri 8/284:25 pm
JAC
- AUS
1 stop6h 29m
United Airlines
Deal found 7/22![United Airlines logo]()
$400
This Alaska Airlines deal was found by Cheapflights users on 7/21. 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 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
1 stop7h 19m
Alaska Airlines
Deal found 7/21![Alaska Airlines logo]()
$331
This Delta deal was found by Cheapflights users on 7/18. 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.
Wed 1/68:10 am
AUS
- IDA
1 stop5h 17m
Delta
Wed 1/136:00 am
IDA
- AUS
2 stops11h 47m
Delta
Deal found 7/18![Delta logo]()
$408
This Southwest deal was found by Cheapflights users on 7/20. 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.
Fri 10/95:45 pm
AUS
- BOI
2 stops8h 15m
Southwest
Mon 10/123:45 pm
BOI
- AUS
1 stop7h 20m
Southwest
Deal found 7/20![Southwest logo]()
$382
This Alaska Airlines deal was found by Cheapflights users on 7/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/152:59 pm
AUS
- GEG
1 stop10h 08m
Alaska Airlines
Sat 8/227:03 am
GEG
- AUS
1 stop13h 24m
Alaska Airlines
Deal found 7/20![Alaska Airlines logo]()
$357
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Wed 1/65:15 am
AUS
- SUN
2 stops10h 31m
United Airlines
Wed 1/132:29 pm
SUN
- AUS
1 stop5h 27m
United Airlines
Deal found 7/18![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 7/22. 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.
Sat 9/56:11 pm
AUS
- IDA
1 stop5h 21m
Delta
Sat 9/126:00 am
IDA
- AUS
2 stops8h 36m
Delta
Deal found 7/22![Delta logo]()
$418
This Southwest deal was found by Cheapflights users on 7/20. 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.
Fri 9/116:25 am
AUS
- BOI
2 stops8h 45m
Southwest
Sun 9/136:30 am
BOI
- AUS
2 stops8h 55m
Southwest
Deal found 7/20![Southwest logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 7/19. 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 9/56:00 am
AUS
- GEG
2 stops19h 59m
Alaska Airlines
Sat 9/127:40 am
GEG
- AUS
1 stop8h 24m
Alaska Airlines
Deal found 7/19![Alaska Airlines logo]()
$376
This Southwest deal was found by Cheapflights users on 7/22. 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 9/125:20 pm
AUS
- GEG
1 stop5h 35m
Southwest
Sun 9/132:50 pm
GEG
- AUS
1 stop8h 10m
Southwest
Deal found 7/22![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 7/20. 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.
Mon 8/171:40 pm
AUS
- IDA
2 stops9h 52m
Delta
Mon 8/2411:35 am
IDA
- AUS
1 stop4h 41m
Delta
Deal found 7/20![Delta logo]()
$426
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Sat 9/262:26 pm
AUS
- JAC
2 stops7h 20m
United Airlines
Sat 10/34:28 pm
JAC
- AUS
1 stop6h 31m
United Airlines
Deal found 7/21![United Airlines logo]()
$484
This Delta deal was found by Cheapflights users on 7/22. 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 9/247:15 am
AUS
- IDA
2 stops12h 02m
Delta
Tue 9/296:00 am
IDA
- AUS
1 stop4h 27m
Delta
Deal found 7/22![Delta logo]()
$427
This Southwest deal was found by Cheapflights users on 7/22. 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 10/185:45 pm
AUS
- BOI
2 stops8h 35m
Southwest
Thu 10/221:55 pm
BOI
- AUS
2 stops8h 45m
Southwest
Deal found 7/22![Southwest logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 7/18. 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.
Fri 9/188:30 am
AUS
- GEG
1 stop7h 15m
Alaska Airlines
Sat 9/196:00 am
GEG
- AUS
1 stop14h 27m
Alaska Airlines
Deal found 7/18![Alaska Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 7/22. 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.
Fri 9/188:00 am
AUS
- JAC
1 stop6h 45m
United Airlines
Fri 9/258:00 am
JAC
- AUS
1 stop6h 54m
United Airlines
Deal found 7/22![United Airlines logo]()
$490
This Southwest deal was found by Cheapflights users on 7/21. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/174:55 pm
AUS
- GEG
2 stops8h 20m
Southwest
Thu 9/246:55 am
GEG
- AUS
2 stops8h 55m
Southwest
Deal found 7/21![Southwest logo]()
$392
This Alaska Airlines deal was found by Cheapflights users on 7/20. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/147:59 pm
AUS
- GEG
1 stop29h 54m
Alaska Airlines
Sun 9/207:03 am
GEG
- AUS
1 stop6h 18m
Alaska Airlines
Deal found 7/20![Alaska Airlines logo]()
$394
This Delta deal was found by Cheapflights users on 7/20. 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.
Fri 8/142:32 pm
AUS
- IDA
1 stop4h 48m
Delta
Sun 8/166:00 am
IDA
- AUS
1 stop4h 25m
Delta
Deal found 7/20![Delta logo]()
$454
This United Airlines deal was found by Cheapflights users on 7/18. 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.
Sun 8/212:55 pm
AUS
- JAC
1 stop5h 58m
United Airlines
Thu 8/67:00 am
JAC
- AUS
1 stop5h 20m
United Airlines
Deal found 7/18![United Airlines logo]()
$523
This Southwest deal was found by Cheapflights users on 7/19. 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.
Thu 8/135:35 pm
AUS
- GEG
1 stop7h 05m
Southwest
Mon 8/175:30 am
GEG
- AUS
1 stop5h 55m
Southwest
Deal found 7/19![Southwest logo]()
$395
Last-minute flights from Austin to IdahoDiscover last-minute flight deals from Austin to Idaho. Data last updated July 23, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho. Data last updated July 23, 2026 and is based on user searches.
This Expedia deal was found by Cheapflights users on 7/19. 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.
Tue 8/116:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 8/181:24 pm
BOI
- AUS
1 stop5h 06m
Frontier
Deal found 7/19![Frontier logo]()
$240
This Expedia deal was found by Cheapflights users on 7/19. 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.
Tue 8/116:00 am
AUS
- BOI
2 stops10h 35m
Multiple Airlines
Tue 8/181:24 pm
BOI
- AUS
1 stop5h 06m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$292
This Expedia deal was found by Cheapflights users on 7/20. 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 8/116:00 am
AUS
- BOI
2 stops10h 35m
Multiple Airlines
Thu 8/131:24 pm
BOI
- AUS
1 stop23h 06m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$298
This Expedia deal was found by Cheapflights users on 7/21. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:30 am
AUS
- BOI
1 stop6h 59m
Multiple Airlines
Wed 8/191:32 pm
BOI
- AUS
1 stop9h 27m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$270
This Priceline deal was found by Cheapflights users on 7/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:15 am
AUS
- BOI
1 stop7h 14m
Multiple Airlines
Tue 8/256:23 am
BOI
- AUS
1 stop7h 48m
Multiple Airlines
Deal found 7/21![Multiple Airlines logo]()
$275
This Southwest deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/195:55 pm
AUS
- BOI
1 stop5h 30m
Southwest
Mon 8/243:50 pm
BOI
- AUS
1 stop6h 10m
Southwest
Deal found 7/23![Southwest logo]()
$299
This Southwest deal was found by Cheapflights users on 7/22. 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.
Wed 8/194:30 pm
AUS
- BOI
2 stops7h 40m
Southwest
Thu 8/2012:10 pm
BOI
- AUS
1 stop6h 55m
Southwest
Deal found 7/22![Southwest logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 7/22. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Thu 8/2712:24 pm
BOI
- AUS
1 stop6h 06m
Frontier
Deal found 7/22![Frontier logo]()
$208
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/266:15 am
AUS
- GEG
2 stops29h 07m
Multiple Airlines
Thu 9/1010:09 am
GEG
- AUS
1 stop8h 56m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/266:15 am
AUS
- GEG
2 stops29h 07m
Multiple Airlines
Sun 9/1310:09 am
GEG
- AUS
1 stop23h 27m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 8/2912:47 pm
AUS
- GEG
1 stop22h 35m
Multiple Airlines
Thu 9/1010:09 am
GEG
- AUS
1 stop8h 56m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$206
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Sat 8/2912:47 pm
AUS
- GEG
1 stop22h 35m
Multiple Airlines
Sun 9/1310:09 am
GEG
- AUS
2 stops35h 50m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$239
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 July 23, 2026.
Search for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated July 23, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/21. 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.
Tue 8/116:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 7/21![Frontier logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 7/21. 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 9/168:16 pm
AUS
- BOI
1 stop16h 48m
Frontier
Deal found 7/21![Frontier logo]()
$108
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Deal found 7/23![Frontier logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 7/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:15 am
AUS
- BOI
1 stop30h 14m
Frontier
Deal found 7/23![Frontier logo]()
$115
This Priceline deal was found by Cheapflights users on 7/20. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:15 am
AUS
- BOI
1 stop6h 14m
Frontier
Deal found 7/20![Frontier logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 7/20. 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.
Thu 8/204:50 pm
AUS
- IDA
1 stop18h 57m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$128
This Trip.com deal was found by Cheapflights users on 7/21. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:43 pm
AUS
- BOI
1 stop17h 46m
Frontier
Deal found 7/21![Frontier logo]()
$132
This Kiwi.com deal was found by Cheapflights users on 7/20. 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 8/122:25 pm
AUS
- BOI
1 stop23h 04m
Frontier
Deal found 7/20![Frontier logo]()
$134
This WAYA deal was found by Cheapflights users on 7/20. 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 WAYA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:47 pm
AUS
- BOI
1 stop6h 22m
Multiple Airlines
Deal found 7/20![Multiple Airlines logo]()
$141
This Priceline deal was found by Cheapflights users on 7/21. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:45 am
AUS
- BOI
1 stop6h 19m
Frontier
Deal found 7/21![Frontier logo]()
$148
This United Airlines deal was found by Cheapflights users on 7/21. 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.
Wed 8/126:01 pm
AUS
- BOI
1 stop5h 39m
United Airlines
Deal found 7/21![United Airlines logo]()
$150
This Kiwi.com deal was found by Cheapflights users on 7/18. 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.
Thu 8/136:30 am
AUS
- GEG
2 stops15h 54m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$152
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 July 23, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $206 (Kiwi.com) |
One-way from | $106 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $480 |
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 July 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
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Tue 8/18
5:41 pm-11:48 pm
1 stop7h 07m
Boise Air Term. Gowen Fld
Wed 9/2
1:15 pm-11:14 pm
1 stop8h 59m
$299
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Thu 9/10
12:10 pm-8:40 pm
2 stops9h 30m
Boise Air Term. Gowen Fld
Wed 9/16
3:40 pm-10:00 pm
1 stop5h 20m
$304
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Tue 8/18
12:55 pm-7:45 pm
2 stops7h 50m
Boise Air Term. Gowen Fld
Tue 8/25
7:40 am-3:55 pm
2 stops7h 15m
$309
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Tue 10/6
3:38 pm-11:59 pm
1 stop9h 21m
Boise Air Term. Gowen Fld
Sat 10/10
8:25 am-6:04 pm
1 stop8h 39m
$325
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Mon 8/17
4:55 pm-11:35 pm
2 stops7h 40m
Boise Air Term. Gowen Fld
Mon 8/31
3:50 pm-12:25 am
2 stops7h 35m
$329
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Tue 8/18
6:00 am-11:07 pm
1 stop19h 07m
Spokane
Tue 8/25
7:03 am-10:27 pm
1 stop13h 24m
$329
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Wed 8/26
1:55 pm-10:49 pm
1 stop10h 54m
Spokane
Thu 8/27
5:52 am-3:11 pm
1 stop7h 19m
$331
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Sat 8/15
2:59 pm-11:07 pm
1 stop10h 08m
Spokane
Sat 8/22
7:03 am-10:27 pm
1 stop13h 24m
$357
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Sat 8/15
6:05 am-12:58 pm
1 stop8h 53m
Spokane
Sat 8/22
1:20 pm-9:31 pm
1 stop6h 11m
$359
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Sat 9/5
6:00 am-11:59 pm
2 stops19h 59m
Spokane
Sat 9/12
7:40 am-6:04 pm
1 stop8h 24m
$376
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-IDA
AUS-GEG
AUS-JAC
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-IDA
AUS-GEG
AUS-JAC
What is the cheapest month to book a flight from Austin to Idaho?
Currently, January is the cheapest month in which you can book a flight from Austin to Idaho (average of $314). Flying from Austin to Idaho in June is currently the most expensive (average of $508). 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 July 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.
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
Entertainment
7.5
Food
7.0
Overall
8.0
Crew
8.6
Boarding
8.1
Comfort
8.0
Reviews
1 / 20
6.0
GoodScott,Feb 2026
HOU - FLL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 July 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 July 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$139 | Average$359 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$149 | Average$277 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$216 | Average$495 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$459 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$267 | Average$416 | FlexibilityNo cancel fee | On-time63% |