$116+ 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 3/1. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Mar 22 — Mar 291
1 adult, Economy
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Find cheap flights from Austin to Idaho with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 February 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 February 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/56:45 am
AUS
- BOI
1 stop6h 06m
Frontier
Thu 3/1212:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/18![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Thu 3/56:45 am
AUS
- GEG
1 stop6h 42m
Frontier
Thu 3/1211:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/17![Frontier logo]()
$184
This CheapOair deal was found by Cheapflights users on 2/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/158:00 am
AUS
- BOI
1 stop28h 08m
Frontier
Sun 4/1911:53 am
BOI
- AUS
1 stop21h 12m
Frontier
Deal found 2/18![Frontier logo]()
$201
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Wed 3/48:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Sun 3/812:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/17![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
Sat 3/710:45 pm
AUS
- BOI
1 stop12h 35m
Frontier
Thu 3/1212:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/18![Frontier logo]()
$206
This CheapOair deal was found by Cheapflights users on 2/18. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:00 am
AUS
- BOI
1 stop28h 08m
Frontier
Sun 5/1711:53 am
BOI
- AUS
1 stop21h 12m
Frontier
Deal found 2/18![Frontier logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Thu 2/2610:06 am
AUS
- BOI
1 stop26h 05m
Frontier
Sun 3/111:56 am
BOI
- AUS
1 stop11h 20m
Frontier
Deal found 2/16![Frontier logo]()
$227
This Orbitz deal was found by Cheapflights users on 2/17. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/36:45 am
AUS
- BOI
1 stop5h 23m
Multiple Airlines
Tue 5/56:00 am
BOI
- AUS
1 stop7h 39m
Multiple Airlines
Deal found 2/17![Multiple Airlines logo]()
$234
This Expedia deal was found by Cheapflights users on 2/19. 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 3/196:45 am
AUS
- BOI
1 stop5h 35m
Frontier
Thu 3/2612:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/19![Frontier logo]()
$238
This Delta deal was found by Cheapflights users on 2/18. 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 5/136:00 am
AUS
- BOI
1 stop9h 43m
Delta
Sat 5/168:59 am
BOI
- AUS
1 stop7h 12m
Delta
Deal found 2/18![Delta logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/297:04 pm
AUS
- GEG
1 stop15h 57m
Alaska Airlines
Mon 5/45:00 am
GEG
- AUS
1 stop7h 39m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$243
This Delta deal was found by Cheapflights users on 2/18. 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 5/137:25 am
AUS
- BOI
2 stops10h 54m
Delta
Sun 5/173:14 pm
BOI
- AUS
1 stop7h 45m
Delta
Deal found 2/18![Delta logo]()
$248
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 February 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 February 20, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/56:45 am
AUS
- GEG
1 stop6h 42m
Frontier
Thu 3/1211:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/18![Frontier logo]()
$184
This Delta deal was found by Cheapflights users on 2/18. 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.
Tue 5/56:00 am
AUS
- BOI
1 stop8h 12m
Delta
Sat 5/96:00 am
BOI
- AUS
1 stop6h 31m
Delta
Deal found 2/18![Delta logo]()
$243
This Alaska Airlines deal was found by Cheapflights users on 2/19. 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.
Wed 4/297:04 pm
AUS
- GEG
1 stop15h 57m
Alaska Airlines
Mon 5/45:00 am
GEG
- AUS
1 stop7h 39m
Alaska Airlines
Deal found 2/19![Alaska Airlines logo]()
$243
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Thu 3/1910:50 am
AUS
- JAC
1 stop5h 26m
United Airlines
Thu 3/264:16 pm
JAC
- AUS
1 stop6h 28m
United Airlines
Deal found 2/17![United Airlines logo]()
$274
This American Airlines deal was found by Cheapflights users on 2/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/42:14 pm
AUS
- SUN
1 stop8h 48m
American Airlines
Sat 3/71:27 pm
SUN
- AUS
1 stop9h 13m
American Airlines
Deal found 2/17![American Airlines logo]()
$334
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Wed 3/48:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Sun 3/812:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/17![Frontier logo]()
$202
This Delta deal was found by Cheapflights users on 2/18. 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 5/136:00 am
AUS
- BOI
1 stop9h 43m
Delta
Sat 5/168:59 am
BOI
- AUS
1 stop7h 12m
Delta
Deal found 2/18![Delta logo]()
$243
This CheapOair deal was found by Cheapflights users on 2/17. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/138:00 am
AUS
- BOI
1 stop28h 08m
Frontier
Sun 5/1711:53 am
BOI
- AUS
1 stop21h 12m
Frontier
Deal found 2/17![Frontier logo]()
$222
This Delta deal was found by Cheapflights users on 2/18. 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 4/295:55 pm
AUS
- GEG
1 stop7h 20m
Delta
Mon 5/45:00 am
GEG
- AUS
1 stop6h 25m
Delta
Deal found 2/18![Delta logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Thu 2/2610:06 am
AUS
- BOI
1 stop26h 05m
Frontier
Sun 3/111:56 am
BOI
- AUS
1 stop11h 20m
Frontier
Deal found 2/16![Frontier logo]()
$227
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Wed 3/187:35 am
AUS
- SUN
1 stop7h 57m
United Airlines
Wed 3/251:29 pm
SUN
- AUS
1 stop7h 11m
United Airlines
Deal found 2/17![United Airlines logo]()
$291
This Delta deal was found by Cheapflights users on 2/18. 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 5/137:25 am
AUS
- BOI
2 stops10h 54m
Delta
Sun 5/173:14 pm
BOI
- AUS
1 stop7h 45m
Delta
Deal found 2/18![Delta logo]()
$248
This Expedia deal was found by Cheapflights users on 2/19. 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 3/196:45 am
AUS
- BOI
1 stop5h 35m
Frontier
Thu 3/2612:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/19![Frontier logo]()
$238
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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 8/16:59 pm
AUS
- SUN
1 stop15h 59m
Alaska Airlines
Mon 8/107:29 pm
SUN
- AUS
1 stop17h 49m
Alaska Airlines
Deal found 2/18![Alaska Airlines logo]()
$321
This Delta deal was found by Cheapflights users on 2/18. 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 4/1512:10 pm
AUS
- BOI
2 stops11h 14m
Delta
Sun 4/193:44 pm
BOI
- AUS
1 stop7h 04m
Delta
Deal found 2/18![Delta logo]()
$248
This United Airlines deal was found by Cheapflights users on 2/19. 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 5/3010:42 am
AUS
- JAC
1 stop5h 43m
United Airlines
Tue 6/24:23 pm
JAC
- AUS
1 stop6h 21m
United Airlines
Deal found 2/19![United Airlines logo]()
$311
This Alaska Airlines deal was found by Cheapflights users on 2/18. 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.
Thu 3/57:55 pm
AUS
- JAC
1 stop17h 29m
Alaska Airlines
Mon 3/911:48 am
JAC
- AUS
1 stop6h 27m
Alaska Airlines
Deal found 2/18![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 2/17. 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.
Fri 4/176:00 am
AUS
- GEG
1 stop6h 45m
Delta
Thu 4/2311:25 am
GEG
- AUS
2 stops10h 10m
Delta
Deal found 2/17![Delta logo]()
$248
This Frontier deal was found by Cheapflights users on 2/19. 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 4/26:45 am
AUS
- GEG
1 stop5h 36m
Frontier
Sun 4/511:06 am
GEG
- AUS
1 stop11h 15m
Frontier
Deal found 2/19![Frontier logo]()
$250
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Thu 3/55:30 am
AUS
- JAC
1 stop5h 21m
United Airlines
Mon 3/161:33 pm
JAC
- AUS
2 stops9h 11m
United Airlines
Deal found 2/19![United Airlines logo]()
$321
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/56:45 am
AUS
- GEG
1 stop6h 42m
Frontier
Sun 3/811:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/19![Frontier logo]()
$251
This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/33:37 pm
AUS
- IDA
1 stop8h 15m
Alaska Airlines
Mon 4/64:59 pm
IDA
- AUS
1 stop20h 33m
Alaska Airlines
Deal found 2/17![Alaska Airlines logo]()
$339
This Frontier deal was found by Cheapflights users on 2/17. 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.
Sun 3/86:45 am
AUS
- GEG
1 stop6h 02m
Frontier
Sun 3/1511:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/17![Frontier logo]()
$260
This Delta deal was found by Cheapflights users on 2/17. 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.
Thu 3/268:05 am
AUS
- SUN
1 stop7h 44m
Delta
Mon 3/303:30 pm
SUN
- AUS
1 stop8h 09m
Delta
Deal found 2/17![Delta logo]()
$291
This United Airlines deal was found by Cheapflights users on 2/18. 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.
Thu 3/55:30 am
AUS
- JAC
1 stop5h 21m
United Airlines
Mon 3/94:16 pm
JAC
- AUS
2 stops11h 40m
United Airlines
Deal found 2/18![United Airlines logo]()
$354
This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/137:15 am
AUS
- IDA
1 stop10h 28m
Alaska Airlines
Tue 3/175:20 pm
IDA
- AUS
1 stop20h 12m
Alaska Airlines
Deal found 2/17![Alaska Airlines logo]()
$389
This Delta deal was found by Cheapflights users on 2/17. 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.
Wed 3/186:20 am
AUS
- SUN
1 stop6h 34m
Delta
Wed 3/2512:40 pm
SUN
- AUS
2 stops9h 56m
Delta
Deal found 2/17![Delta logo]()
$296
This United Airlines deal was found by Cheapflights users on 2/19. 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.
Tue 3/247:35 am
AUS
- SUN
1 stop7h 57m
United Airlines
Wed 3/251:29 pm
SUN
- AUS
1 stop7h 11m
United Airlines
Deal found 2/19![United Airlines logo]()
$371
This Alaska Airlines deal was found by Cheapflights users on 2/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/203:37 pm
AUS
- IDA
1 stop8h 15m
Alaska Airlines
Mon 3/235:59 pm
IDA
- AUS
1 stop19h 33m
Alaska Airlines
Deal found 2/17![Alaska Airlines logo]()
$391
This United Airlines deal was found by Cheapflights users on 2/19. 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 7/185:41 am
AUS
- JAC
1 stop5h 22m
United Airlines
Thu 7/304:25 pm
JAC
- AUS
1 stop6h 19m
United Airlines
Deal found 2/19![United Airlines logo]()
$379
Last-minute flights from Austin to IdahoDiscover last-minute flight deals from Austin to Idaho. Data last updated February 20, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho. Data last updated February 20, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 2/16. 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.
Thu 2/2610:06 am
AUS
- BOI
1 stop26h 05m
Frontier
Sun 3/111:56 am
BOI
- AUS
1 stop11h 20m
Frontier
Deal found 2/16![Frontier logo]()
$227
This Frontier deal was found by Cheapflights users on 2/19. 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.
Sun 3/16:45 am
AUS
- BOI
1 stop5h 26m
Frontier
Sun 3/812:15 pm
BOI
- AUS
1 stop8h 48m
Frontier
Deal found 2/19![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Wed 3/48:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Sun 3/812:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/17![Frontier logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/56:45 am
AUS
- BOI
1 stop6h 06m
Frontier
Thu 3/1212:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/18![Frontier logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Thu 3/56:45 am
AUS
- GEG
1 stop6h 42m
Frontier
Thu 3/1211:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/17![Frontier logo]()
$184
This Kiwi.com deal was found by Cheapflights users on 2/19. 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 3/56:45 am
AUS
- GEG
1 stop6h 42m
Frontier
Sun 3/811:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/19![Frontier logo]()
$251
This Kiwi.com deal was found by Cheapflights users on 2/18. 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 3/56:45 am
AUS
- BOI
1 stop6h 06m
Multiple Airlines
Mon 3/95:37 pm
BOI
- AUS
2 stops27h 13m
Multiple Airlines
Deal found 2/18![Multiple Airlines logo]()
$252
This Kiwi.com deal was found by Cheapflights users on 2/18. 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.
Sat 3/710:45 pm
AUS
- BOI
1 stop12h 35m
Frontier
Thu 3/1212:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/18![Frontier logo]()
$206
This Delta deal was found by Cheapflights users on 2/18. 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.
Tue 3/176:03 am
AUS
- BOI
1 stop8h 02m
Delta
Wed 3/255:52 am
BOI
- AUS
1 stop6h 38m
Delta
Deal found 2/18![Delta logo]()
$243
This Expedia deal was found by Cheapflights users on 2/19. 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 3/196:45 am
AUS
- BOI
1 stop5h 35m
Frontier
Thu 3/2612:15 pm
BOI
- AUS
1 stop11h 01m
Frontier
Deal found 2/19![Frontier logo]()
$238
This Frontier deal was found by Cheapflights users on 2/19. 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.
Sun 3/226:45 am
AUS
- GEG
1 stop6h 03m
Frontier
Thu 3/2611:32 am
GEG
- AUS
1 stop10h 44m
Frontier
Deal found 2/19![Frontier logo]()
$250
This United Airlines deal was found by Cheapflights users on 2/17. 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 3/244:54 pm
AUS
- JAC
1 stop5h 00m
United Airlines
Fri 3/272:33 pm
JAC
- AUS
1 stop5h 33m
United Airlines
Deal found 2/17![United Airlines logo]()
$249
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 February 20, 2026.
Search for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated February 20, 2026.
This Priceline deal was found by Cheapflights users on 2/20. 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.
Sun 3/16:45 am
AUS
- BOI
1 stop5h 26m
Frontier
Deal found 2/20![Frontier logo]()
$116
This Priceline deal was found by Cheapflights users on 2/19. 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 3/126:45 am
AUS
- GEG
1 stop6h 02m
Frontier
Deal found 2/19![Frontier logo]()
$119
This Priceline deal was found by Cheapflights users on 2/17. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/86:45 am
AUS
- BOI
1 stop5h 35m
Frontier
Deal found 2/17![Frontier logo]()
$135
This Frontier deal was found by Cheapflights users on 2/20. 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 3/86:45 am
AUS
- GEG
1 stop6h 02m
Frontier
Deal found 2/20![Frontier logo]()
$135
This Delta deal was found by Cheapflights users on 2/18. 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.
Tue 3/176:03 am
AUS
- BOI
1 stop8h 02m
Delta
Deal found 2/18![Delta logo]()
$139
This American Airlines deal was found by Cheapflights users on 2/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/114:29 pm
AUS
- GEG
1 stop6h 43m
American Airlines
Deal found 2/17![American Airlines logo]()
$139
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sat 6/202:45 pm
AUS
- SUN
1 stop7h 41m
United Airlines
Deal found 2/17![United Airlines logo]()
$146
This United Airlines deal was found by Cheapflights users on 2/17. 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.
Sun 6/215:39 am
AUS
- SUN
2 stops8h 37m
United Airlines
Deal found 2/17![United Airlines logo]()
$151
This Delta deal was found by Cheapflights users on 2/18. 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.
Sun 3/2911:56 am
AUS
- JAC
1 stop5h 51m
Delta
Deal found 2/18![Delta logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 2/17. 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.
Sat 3/1410:45 pm
AUS
- GEG
1 stop14h 02m
Frontier
Deal found 2/17![Frontier logo]()
$163
This United Airlines deal was found by Cheapflights users on 2/20. 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.
Fri 4/102:10 pm
AUS
- BOI
1 stop8h 53m
United Airlines
Deal found 2/20![United Airlines logo]()
$167
This Alaska Airlines deal was found by Cheapflights users on 2/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:35 am
AUS
- IDA
1 stop8h 44m
Alaska Airlines
Deal found 2/16![Alaska Airlines logo]()
$170
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 February 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $179 (Kiwi.com) |
One-way from | $116 (Priceline) |
Popular in | June |
Cheapest in | April |
Average price | $315 |
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 February 20, 2026.
Use the filters below to find and compare flights from Austin to Idaho that are best for you.
Fly from
Austin
Fly to
Idaho
Route
Depart
Return
Price
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Thu 3/5
6:45 am-11:27 am
1 stop6h 42m
Spokane
Thu 3/12
11:32 am-12:16 am
1 stop10h 44m
$184
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 3/4
8:30 am-11:51 am
1 stop28h 21m
Boise Air Term. Gowen Fld
Sun 3/8
12:15 pm-12:16 am
1 stop11h 01m
$202
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 5/13
8:00 am-11:08 am
1 stop28h 08m
Boise Air Term. Gowen Fld
Sun 5/17
11:53 am-10:05 am
1 stop21h 12m
$222
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Thu 2/26
10:06 am-11:11 am
1 stop26h 05m
Boise Air Term. Gowen Fld
Sun 3/1
11:56 am-12:16 am
1 stop11h 20m
$227
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Thu 3/19
6:45 am-11:20 am
1 stop5h 35m
Boise Air Term. Gowen Fld
Thu 3/26
12:15 pm-12:16 am
1 stop11h 01m
$238
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Tue 5/5
6:00 am-1:12 pm
1 stop8h 12m
Boise Air Term. Gowen Fld
Sat 5/9
6:00 am-1:31 pm
1 stop6h 31m
$243
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Wed 4/29
7:04 pm-9:01 am
1 stop15h 57m
Spokane
Mon 5/4
5:00 am-2:39 pm
1 stop7h 39m
$243
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 5/13
6:00 am-2:43 pm
1 stop9h 43m
Boise Air Term. Gowen Fld
Sat 5/16
8:59 am-5:11 pm
1 stop7h 12m
$243
AustinSpokane
AUS - GEG
AUSGEG
Austin Bergstrom
Wed 4/29
5:55 pm-11:15 pm
1 stop7h 20m
Spokane
Mon 5/4
5:00 am-1:25 pm
1 stop6h 25m
$243
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 5/13
7:25 am-5:19 pm
2 stops10h 54m
Boise Air Term. Gowen Fld
Sun 5/17
3:14 pm-11:59 pm
1 stop7h 45m
$248
Showing 1-10 of 60 results
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-GEG
AUS-BOI
AUS-SUN
AUS-IDA
AUS-JAC
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Austin to Idaho
AUS-USID
AUS-GEG
AUS-BOI
AUS-SUN
AUS-IDA
What is the cheapest month to book a flight from Austin to Idaho?
Currently, September is the cheapest month in which you can book a flight from Austin to Idaho (average of $108). Flying from Austin to Idaho in July is currently the most expensive (average of $257). 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.
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 February 20, 2026.
Read through reviews of airlines operating flights from Austin to Idaho, such as Southwest, Delta, and United Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Boarding
8.1
Entertainment
7.5
Overall
8.0
Crew
8.6
Food
7.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
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Complete your trip
Complete your trip to Idaho by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from 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 February 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 5 airlines flying from Austin to Idaho
Discover the top 5 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 February 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$100 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$403 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$232 | Average$347 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$475 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$261 | Average$367 | FlexibilityNo cancel fee | On-time63% |