$131+ Cheap flights from Idaho to Austin (AUS)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 12/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Nov 18 — Nov 251
Round-trip
1 adult, Economy
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Find cheap flights from Idaho to Austin 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 Idaho to AustinExplore the most affordable flight options available from Idaho to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
Explore the most affordable flight options available from Idaho to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 19, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/47:56 pm -
1 stop23h 11m
Thu 12/108:52 pm -
1 stop21h 28m
Deal found 10/16![Frontier logo]()
$219
This Southwest deal was found by Cheapflights users on 10/19. 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.
Wed 11/1812:40 pm -
1 stop9h 15m
Mon 11/237:15 pm -
1 stop7h 15m
Deal found 10/19![Southwest logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Mon 12/76:15 pm -
1 stop24h 52m
Sat 12/128:52 pm -
1 stop21h 28m
Deal found 10/16![Frontier logo]()
$270
This Southwest deal was found by Cheapflights users on 10/19. 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 12/31:05 pm -
1 stop7h 10m
Thu 12/102:50 pm -
1 stop7h 50m
Deal found 10/19![Southwest logo]()
$275
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:15 am -
1 stop8h 40m
Mon 12/74:58 pm -
1 stop5h 54m
Deal found 10/14![United Airlines logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Sun 12/69:51 pm -
1 stop12h 20m
Wed 12/98:52 pm -
1 stop21h 28m
Deal found 10/16![Frontier logo]()
$280
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/52:48 pm -
2 stops7h 27m
Tue 12/87:00 am -
1 stop8h 50m
Deal found 10/14![United Airlines logo]()
$282
This Kiwi.com deal was found by Cheapflights users on 10/16. 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.
Sun 12/69:51 pm -
1 stop12h 20m
Sat 12/128:52 pm -
1 stop21h 28m
Deal found 10/16![Frontier logo]()
$287
This Expedia deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/44:47 pm -
1 stop19h 09m
Tue 12/87:15 am -
1 stop6h 54m
Deal found 10/14![Alaska Airlines logo]()
$288
This Frontier deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:49 pm -
1 stop20h 04m
Sat 11/219:32 pm -
1 stop22h 28m
Deal found 10/16![Frontier logo]()
$291
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:40 pm -
1 stop5h 37m
Tue 12/89:00 am -
1 stop7h 29m
Deal found 10/16![United Airlines logo]()
$379
This United Airlines deal was found by Cheapflights users on 10/17. 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 12/32:40 pm -
1 stop5h 37m
Sun 12/65:15 am -
2 stops9h 22m
Deal found 10/17![United Airlines logo]()
$384
Best flights from Idaho to AustinDiscover carefully curated flight deals from Idaho to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
Discover carefully curated flight deals from Idaho to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 19, 2026.
This Southwest deal was found by Cheapflights users on 10/19. 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 12/33:30 pm -
1 stop4h 45m
Thu 12/106:05 am -
2 stops8h 00m
Deal found 10/19![Southwest logo]()
$281
This United Airlines deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:40 pm -
1 stop5h 37m
Tue 12/89:00 am -
1 stop7h 29m
Deal found 10/16![United Airlines logo]()
$379
This Alaska Airlines deal was found by Cheapflights users on 10/19. 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.
Thu 11/1212:49 pm -
1 stop9h 25m
Mon 11/164:25 pm -
1 stop7h 14m
Deal found 10/19![Alaska Airlines logo]()
$443
This Delta deal was found by Cheapflights users on 10/17. 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 12/35:35 am -
1 stop8h 22m
Sat 12/56:05 pm -
1 stop5h 20m
Deal found 10/17![Delta logo]()
$449
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/212:40 pm -
2 stops8h 25m
Wed 12/96:25 am -
1 stop5h 35m
Deal found 10/15![Southwest logo]()
$370
This United Airlines deal was found by Cheapflights users on 10/17. 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 12/32:40 pm -
1 stop5h 37m
Sun 12/65:15 am -
2 stops9h 22m
Deal found 10/17![United Airlines logo]()
$384
This Southwest deal was found by Cheapflights users on 10/18. 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.
Fri 12/251:40 pm -
2 stops9h 15m
Thu 12/316:05 am -
2 stops8h 00m
Deal found 10/18![Southwest logo]()
$374
This Alaska Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:00 am -
1 stop11h 06m
Wed 12/97:15 am -
1 stop7h 02m
Deal found 10/14![Alaska Airlines logo]()
$458
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/102:50 pm -
1 stop5h 35m
Tue 1/53:55 pm -
1 stop8h 15m
Deal found 10/15![Southwest logo]()
$387
This Delta deal was found by Cheapflights users on 10/17. 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 12/25:35 am -
1 stop5h 03m
Sat 12/56:05 pm -
1 stop5h 20m
Deal found 10/17![Delta logo]()
$478
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:35 pm -
1 stop5h 23m
Sat 11/78:36 am -
1 stop5h 52m
Deal found 10/19![United Airlines logo]()
$449
This Southwest deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:15 pm -
2 stops9h 50m
Sat 11/216:10 pm -
2 stops8h 30m
Deal found 10/16![Southwest logo]()
$397
This Delta deal was found by Cheapflights users on 10/18. 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.
Thu 11/512:19 pm -
1 stop7h 23m
Mon 11/98:00 am -
1 stop5h 44m
Deal found 10/18![Delta logo]()
$481
This Alaska Airlines deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:13 am -
2 stops25h 46m
Sun 11/86:00 am -
1 stop17h 39m
Deal found 10/15![Alaska Airlines logo]()
$500
This United Airlines deal was found by Cheapflights users on 10/18. 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 12/32:48 pm -
2 stops7h 27m
Sun 12/68:45 am -
1 stop7h 05m
Deal found 10/18![United Airlines logo]()
$466
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:17 pm -
2 stops9h 38m
Mon 11/166:09 pm -
1 stop5h 10m
Deal found 10/16![Delta logo]()
$504
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Tue 12/292:12 pm -
1 stop8h 02m
Sun 1/37:15 am -
1 stop6h 56m
Deal found 10/16![Alaska Airlines logo]()
$506
This United Airlines deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/56:35 am -
1 stop5h 33m
Wed 12/95:15 am -
2 stops9h 22m
Deal found 10/14![United Airlines logo]()
$474
This Southwest deal was found by Cheapflights users on 10/18. 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.
Fri 1/155:55 am -
2 stops9h 30m
Mon 1/188:20 am -
2 stops8h 45m
Deal found 10/18![Southwest logo]()
$501
This Delta deal was found by Cheapflights users on 10/18. 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.
Thu 11/2612:58 pm -
1 stop7h 44m
Tue 12/18:10 am -
1 stop7h 33m
Deal found 10/18![Delta logo]()
$560
This Delta deal was found by Cheapflights users on 10/17. 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.
Sun 11/112:19 pm -
1 stop7h 23m
Thu 11/52:18 pm -
2 stops10h 48m
Deal found 10/17![Delta logo]()
$645
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:17 pm -
1 stop7h 24m
Sat 11/148:00 am -
1 stop5h 21m
Deal found 10/16![Delta logo]()
$788
Last-minute flights from Idaho to AustinDiscover last-minute flight deals from Idaho to Austin. Data last updated October 19, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Austin. Data last updated October 19, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 10/19. 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.
Tue 11/311:32 am -
1 stop4h 38m
Sat 11/77:23 am -
1 stop8h 24m
Deal found 10/19![Delta logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:51 pm -
1 stop5h 07m
Sat 11/77:40 am -
2 stops10h 04m
Deal found 10/19![United Airlines logo]()
$370
This Southwest deal was found by Cheapflights users on 10/19. 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.
Tue 11/35:45 am -
2 stops7h 50m
Sat 11/77:20 am -
2 stops7h 50m
Deal found 10/19![Southwest logo]()
$375
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/33:30 pm -
1 stop4h 40m
Fri 11/66:40 pm -
1 stop5h 20m
Deal found 10/15![Southwest logo]()
$387
This United Airlines deal was found by Cheapflights users on 10/19. 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 11/32:35 pm -
1 stop5h 23m
Sat 11/78:36 am -
1 stop5h 52m
Deal found 10/19![United Airlines logo]()
$449
This Delta deal was found by Cheapflights users on 10/18. 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.
Thu 11/512:19 pm -
1 stop7h 23m
Mon 11/98:00 am -
1 stop5h 44m
Deal found 10/18![Delta logo]()
$481
This United Airlines deal was found by Cheapflights users on 10/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:35 pm -
1 stop5h 23m
Sat 11/148:36 am -
1 stop5h 52m
Deal found 10/18![United Airlines logo]()
$379
This Frontier deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/122:49 pm -
1 stop20h 04m
Sat 11/219:32 pm -
1 stop22h 28m
Deal found 10/16![Frontier logo]()
$291
This Delta deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/121:17 pm -
1 stop7h 24m
Mon 11/166:09 pm -
1 stop5h 10m
Deal found 10/16![Delta logo]()
$498
This Southwest deal was found by Cheapflights users on 10/19. 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 11/135:35 pm -
1 stop6h 00m
Sun 11/156:00 am -
1 stop6h 40m
Deal found 10/19![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 10/19. 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.
Fri 11/1312:00 pm -
2 stops10h 15m
Mon 11/167:07 am -
2 stops10h 35m
Deal found 10/19![United Airlines logo]()
$390
This Southwest deal was found by Cheapflights users on 10/19. 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.
Wed 11/1812:40 pm -
1 stop9h 15m
Mon 11/237:15 pm -
1 stop7h 15m
Deal found 10/19![Southwest logo]()
$239
One-way flights from Idaho to AustinSearch for one-way flight options from Idaho to Austin. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
Search for one-way flight options from Idaho to Austin. Find affordable one-way fares based on user searches. Data last updated October 19, 2026.
This CheapOair deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/226:56 pm -
1 stop15h 49m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Frontier logo]()
$131
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:39 am -
1 stop6h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$139
This Southwest deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:40 pm -
2 stops10h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Southwest logo]()
$144
This Cheapflightsfares deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/217:55 pm -
1 stop25h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Frontier logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 10/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/235:33 pm -
1 stop17h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$174
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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.
Sat 10/319:12 am -
1 stop6h 37m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Alaska Airlines logo]()
$183
This Cheapflightsfares deal was found by Cheapflights users on 10/16. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/12:49 pm -
1 stop20h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/16![Frontier logo]()
$187
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/105:45 am -
2 stops9h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Southwest logo]()
$188
This Delta deal was found by Cheapflights users on 10/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/185:35 am -
1 stop5h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/14![Delta logo]()
$190
This Southwest deal was found by Cheapflights users on 10/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:55 pm -
1 stop7h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/15![Southwest logo]()
$205
This United Airlines deal was found by Cheapflights users on 10/19. 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 3/251:35 pm -
1 stop6h 59m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/19![United Airlines logo]()
$207
This Alaska Airlines deal was found by Cheapflights users on 10/18. 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 1/79:08 am -
1 stop7h 52m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/18![Alaska Airlines logo]()
$209
Find flight deals from Idaho to Austin
Keep the following information in mind while searching for Idaho to Austin flight deals. Data was last updated October 19, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $219 (Kiwi.com) |
One-way from | $131 (CheapOair) |
Popular in | July |
Cheapest in | January |
Average price | $386 |
Cheapflights Fare Finder
Customize your flight search to find flights from Idaho to Austin 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 7,457,451 searches. Data last updated October 19, 2026.
Use the filters below to find and compare flights from Idaho to Austin that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Wed 12/23
1:00 pm-9:22 pm
1 stop7h 22m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$183
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Sat 10/31
9:12 am-4:49 pm
1 stop6h 37m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$183
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Tue 12/1
4:44 pm-11:56 pm
1 stop6h 12m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$183
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Sat 11/14
12:00 pm-11:15 pm
2 stops10h 15m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$188
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Sun 11/1
2:49 pm-12:13 pm
1 stop20h 24m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$194
HaileyAustin
SUN Hailey Sun Valley-Friedman - AUS Austin Bergstrom
SUNAUS
Hailey Sun Valley-Friedman
Thu 3/25
1:35 pm-9:34 pm
1 stop6h 59m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$207
Quickest round-trip
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Thu 11/19
5:00 am-11:08 am
1 stop5h 08m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$223
HaileyAustin
SUN Hailey Sun Valley-Friedman - AUS Austin Bergstrom
SUNAUS
Hailey Sun Valley-Friedman
Thu 3/25
1:50 pm-11:17 pm
1 stop8h 27m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$237
LewistonAustin
LWS Lewiston Nez Perce Rgnl - AUS Austin Bergstrom
LWSAUS
Lewiston Nez Perce Rgnl
Tue 11/3
12:19 pm-9:42 pm
1 stop7h 23m
Austin Bergstrom
Wed 12/31
12:00 am-10:00 pm
Nonstop0h 00m
$253
BoiseAustin
BOI Boise Air Term. Gowen Fld - AUS Austin Bergstrom
BOIAUS
Boise Air Term. Gowen Fld
Wed 12/23
3:10 pm-1:20 am
2 stops9h 10m
Austin Bergstrom
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$268
Showing 1-10 of 47 resultsSorted by cheapest first
Best time to book a flight from Idaho to Austin
Have a flexible travel schedule? Discover the best time to fly to Austin from Idaho with our price prediction graph.
BOI-AUS
IDA-AUS
LWS-AUS
TWF-AUS
SUN-AUS
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 Idaho to Austin
USID-AUS
BOI-AUS
IDA-AUS
LWS-AUS
TWF-AUS
What is the cheapest month to book a flight from Idaho to Austin?
Currently, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $288). Flying from Idaho to Austin in July is currently the most expensive (average of $620). 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 Idaho to Austin?
Airfare is below average for this route at the moment.
Idaho to Austin flights typically cost between $322 and $489 in December.The cheapest round-trip price found within the last 5 days was $219 on Frontier (Dec 4-Dec 10).
How far ahead should I book a flight from Idaho to Austin?
Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
Related info for your journey
Find useful and relevant information for your journey from Idaho to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Austin?
Book flights to Austin if you plan to visit one of these locationsCedar Park
Round Rock
San Marcos
Bastrop
Fredericksburg
Pflugerville
Georgetown
Dripping Springs
Seguin
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Idaho to Austin
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Other flights to Austin
Explore flights to Austin departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 19, 2026.
Complete your trip
Complete your trip to Austin by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Idaho to Austin by cabin class
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Idaho and Austin flights
Browse other Idaho and Austin flight options. Last updated on October 19, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Idaho to Austin flights
Consider these flights traveling from Idaho to Austin.
Top 6 airlines flying from Idaho to Austin
Discover the top 6 airlines that operate flights from Idaho to Austin. 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 7,457,451 searches. Data last updated October 19, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$154 | Average$262 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$232 | Average$419 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$236 | Average$469 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$271 | Average$455 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$293 | Average$424 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$297 | Average$468 | FlexibilityNo cancel fee | On-time75% |