$86+ Cheap flights from Idaho to Austin (AUS)
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 5/24. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Apr 24 — May 11
Round-trip
1 adult, Economy
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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 March 25, 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 March 25, 2026.
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
- AUS
1 stop11h 18m
Frontier
Wed 4/156:13 pm
AUS
- BOI
1 stop17h 55m
Frontier
Deal found 3/20![Frontier logo]()
$171
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:03 pm
BOI
- AUS
1 stop11h 18m
Frontier
Sun 4/126:45 am
AUS
- BOI
1 stop5h 23m
Frontier
Deal found 3/20![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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.
Thu 5/71:22 pm
BOI
- AUS
1 stop5h 56m
Frontier
Mon 5/119:13 pm
AUS
- BOI
1 stop16h 14m
Frontier
Deal found 3/24![Frontier logo]()
$221
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/261:25 pm
BOI
- AUS
1 stop19h 18m
Frontier
Sun 5/3110:42 pm
AUS
- BOI
2 stops38h 48m
Frontier
Deal found 3/24![Frontier logo]()
$235
This Expedia deal was found by Cheapflights users on 3/21. 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.
Tue 5/51:22 pm
BOI
- AUS
1 stop5h 56m
Multiple Airlines
Tue 5/126:00 am
AUS
- BOI
1 stop8h 52m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$239
This CheapOair deal was found by Cheapflights users on 3/23. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/141:22 pm
BOI
- AUS
1 stop5h 56m
Frontier
Mon 5/189:13 pm
AUS
- BOI
1 stop16h 14m
Frontier
Deal found 3/23![Frontier logo]()
$241
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:15 pm
BOI
- AUS
1 stop8h 35m
Frontier
Thu 4/26:45 am
AUS
- BOI
1 stop5h 23m
Frontier
Deal found 3/23![Frontier logo]()
$260
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2911:33 am
GEG
- AUS
1 stop10h 43m
Frontier
Sun 4/56:45 am
AUS
- GEG
1 stop5h 36m
Frontier
Deal found 3/22![Frontier logo]()
$260
This CheapOair deal was found by Cheapflights users on 3/22. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/281:25 pm
BOI
- AUS
1 stop19h 18m
Frontier
Mon 6/110:28 am
AUS
- BOI
1 stop27h 02m
Frontier
Deal found 3/22![Frontier logo]()
$261
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:22 pm
BOI
- AUS
1 stop9h 12m
Alaska Airlines
Tue 4/286:00 am
AUS
- BOI
1 stop7h 35m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 4/216:00 am
BOI
- AUS
2 stops8h 20m
Southwest
Tue 4/286:55 pm
AUS
- BOI
1 stop5h 35m
Southwest
Deal found 3/23![Southwest logo]()
$268
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/215:10 am
GEG
- AUS
1 stop6h 10m
Southwest
Tue 4/286:55 pm
AUS
- GEG
1 stop6h 00m
Southwest
Deal found 3/24![Southwest logo]()
$279
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 March 25, 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 March 25, 2026.
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 4/216:00 am
BOI
- AUS
2 stops8h 20m
Southwest
Tue 4/286:55 pm
AUS
- BOI
1 stop5h 35m
Southwest
Deal found 3/23![Southwest logo]()
$268
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/15:56 pm
BOI
- AUS
1 stop28h 04m
Alaska Airlines
Tue 5/51:36 pm
AUS
- BOI
1 stop8h 50m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$292
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Thu 5/282:44 pm
JAC
- AUS
1 stop6h 10m
United Airlines
Tue 6/25:39 am
AUS
- JAC
1 stop5h 07m
United Airlines
Deal found 3/20![United Airlines logo]()
$311
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 6/511:39 pm
BOI
- AUS
1 stop8h 54m
Delta
Mon 6/84:15 pm
AUS
- BOI
1 stop7h 49m
Delta
Deal found 3/24![Delta logo]()
$344
This American Airlines deal was found by Cheapflights users on 3/23. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/284:14 pm
JAC
- AUS
1 stop5h 28m
American Airlines
Tue 6/22:43 pm
AUS
- JAC
1 stop5h 41m
American Airlines
Deal found 3/23![American Airlines logo]()
$390
This Alaska Airlines deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/27:27 am
GEG
- AUS
1 stop9h 52m
Alaska Airlines
Tue 5/56:00 am
AUS
- GEG
1 stop18h 20m
Alaska Airlines
Deal found 3/24![Alaska Airlines logo]()
$292
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/145:10 am
GEG
- AUS
2 stops8h 10m
Southwest
Thu 4/237:20 pm
AUS
- GEG
1 stop7h 10m
Southwest
Deal found 3/25![Southwest logo]()
$312
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/233:23 pm
BOI
- AUS
1 stop6h 16m
Delta
Sun 4/266:15 am
AUS
- BOI
1 stop9h 11m
Delta
Deal found 3/24![Delta logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/184:23 pm
BOI
- AUS
1 stop6h 28m
Alaska Airlines
Sat 4/256:00 am
AUS
- BOI
1 stop8h 52m
Alaska Airlines
Deal found 3/22![Alaska Airlines logo]()
$317
This Southwest deal was found by Cheapflights users on 3/21. 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 5/126:00 am
BOI
- AUS
2 stops8h 20m
Southwest
Tue 5/196:05 pm
AUS
- BOI
1 stop6h 15m
Southwest
Deal found 3/21![Southwest logo]()
$322
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Sat 4/252:30 pm
IDA
- AUS
1 stop5h 44m
United Airlines
Tue 4/284:43 pm
AUS
- IDA
1 stop5h 21m
United Airlines
Deal found 3/22![United Airlines logo]()
$386
This Alaska Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/2210:22 am
BOI
- AUS
2 stops11h 38m
Alaska Airlines
Thu 4/235:49 pm
AUS
- BOI
1 stop7h 10m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$329
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/245:47 am
IDA
- AUS
1 stop4h 49m
Delta
Fri 5/16:45 pm
AUS
- IDA
1 stop4h 55m
Delta
Deal found 3/25![Delta logo]()
$364
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/45:50 am
GEG
- AUS
2 stops11h 10m
Southwest
Mon 5/48:25 pm
AUS
- GEG
1 stop6h 05m
Southwest
Deal found 3/24![Southwest logo]()
$340
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/22:31 pm
IDA
- AUS
1 stop5h 34m
United Airlines
Wed 5/67:00 am
AUS
- IDA
1 stop7h 25m
United Airlines
Deal found 3/20![United Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 3/20. 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.
Thu 5/281:15 pm
JAC
- AUS
2 stops9h 16m
Delta
Tue 6/27:25 am
AUS
- JAC
2 stops10h 34m
Delta
Deal found 3/20![Delta logo]()
$374
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/11:30 pm
GEG
- AUS
2 stops7h 45m
Southwest
Tue 5/54:10 pm
AUS
- GEG
2 stops8h 45m
Southwest
Deal found 3/24![Southwest logo]()
$345
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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.
Tue 4/146:00 am
BOI
- AUS
1 stop7h 37m
Alaska Airlines
Sat 4/184:32 pm
AUS
- BOI
1 stop8h 15m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$363
This United Airlines deal was found by Cheapflights users on 3/22. 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.
Wed 5/201:41 pm
GEG
- AUS
2 stops7h 34m
United Airlines
Sun 5/245:30 am
AUS
- GEG
2 stops9h 07m
United Airlines
Deal found 3/22![United Airlines logo]()
$408
This Southwest deal was found by Cheapflights users on 3/21. 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.
Wed 5/67:05 am
BOI
- AUS
2 stops10h 00m
Southwest
Fri 5/154:05 pm
AUS
- BOI
2 stops8h 25m
Southwest
Deal found 3/21![Southwest logo]()
$355
This Delta deal was found by Cheapflights users on 3/22. 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 4/237:15 am
GEG
- AUS
1 stop7h 35m
Delta
Sun 4/266:15 am
AUS
- GEG
1 stop8h 49m
Delta
Deal found 3/22![Delta logo]()
$391
This United Airlines deal was found by Cheapflights users on 3/20. 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.
Wed 4/297:00 am
JAC
- AUS
1 stop5h 08m
United Airlines
Sat 5/24:50 pm
AUS
- JAC
1 stop5h 08m
United Airlines
Deal found 3/20![United Airlines logo]()
$425
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/45:50 am
GEG
- AUS
2 stops11h 10m
Southwest
Fri 5/88:25 pm
AUS
- GEG
1 stop6h 05m
Southwest
Deal found 3/24![Southwest logo]()
$368
This Delta deal was found by Cheapflights users on 3/22. 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 4/255:47 am
IDA
- AUS
1 stop4h 49m
Delta
Mon 4/272:00 pm
AUS
- IDA
2 stops9h 40m
Delta
Deal found 3/22![Delta logo]()
$414
This Southwest deal was found by Cheapflights users on 3/22. 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 5/286:50 am
GEG
- AUS
2 stops7h 50m
Southwest
Sun 5/317:20 pm
AUS
- GEG
1 stop7h 35m
Southwest
Deal found 3/22![Southwest logo]()
$369
This Delta deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 5/96:00 am
IDA
- AUS
2 stops12h 01m
Delta
Sat 5/1611:55 am
AUS
- IDA
1 stop7h 19m
Delta
Deal found 3/25![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 3/22. 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.
Mon 8/311:28 am
IDA
- AUS
1 stop5h 29m
Delta
Mon 8/107:20 am
AUS
- IDA
2 stops11h 54m
Delta
Deal found 3/22![Delta logo]()
$449
This Southwest deal was found by Cheapflights users on 3/22. 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.
Fri 5/225:00 am
GEG
- AUS
2 stops14h 00m
Southwest
Tue 5/266:55 pm
AUS
- GEG
1 stop6h 00m
Southwest
Deal found 3/22![Southwest logo]()
$414
This Alaska Airlines deal was found by Cheapflights users on 3/20. 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.
Thu 5/2812:59 pm
JAC
- AUS
3 stops26h 49m
Alaska Airlines
Tue 6/25:48 pm
AUS
- JAC
2 stops21h 59m
Alaska Airlines
Deal found 3/20![Alaska Airlines logo]()
$1,216
Last-minute flights from Idaho to AustinDiscover last-minute flight deals from Idaho to Austin. Data last updated March 25, 2026 and is based on user searches.
Discover last-minute flight deals from Idaho to Austin. Data last updated March 25, 2026 and is based on user searches.
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:15 pm
BOI
- AUS
1 stop8h 35m
Frontier
Thu 4/26:45 am
AUS
- BOI
1 stop5h 23m
Frontier
Deal found 3/23![Frontier logo]()
$260
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/2911:33 am
GEG
- AUS
1 stop10h 43m
Frontier
Sun 4/56:45 am
AUS
- GEG
1 stop5h 36m
Frontier
Deal found 3/22![Frontier logo]()
$260
This Frontier deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:03 pm
BOI
- AUS
1 stop11h 18m
Frontier
Sun 4/126:45 am
AUS
- BOI
1 stop5h 23m
Frontier
Deal found 3/20![Frontier logo]()
$180
This CheapOair deal was found by Cheapflights users on 3/20. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
- AUS
1 stop11h 18m
Frontier
Wed 4/156:13 pm
AUS
- BOI
1 stop17h 55m
Frontier
Deal found 3/20![Frontier logo]()
$171
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/145:00 am
GEG
- AUS
1 stop7h 37m
Alaska Airlines
Sat 4/186:00 am
AUS
- GEG
1 stop19h 59m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$289
This Expedia deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/145:00 am
GEG
- AUS
1 stop7h 37m
Alaska Airlines
Thu 4/236:00 am
AUS
- GEG
1 stop18h 20m
Alaska Airlines
Deal found 3/25![Alaska Airlines logo]()
$306
This Southwest deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/145:10 am
GEG
- AUS
2 stops8h 10m
Southwest
Thu 4/237:20 pm
AUS
- GEG
1 stop7h 10m
Southwest
Deal found 3/25![Southwest logo]()
$312
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/152:22 pm
BOI
- AUS
1 stop9h 12m
Alaska Airlines
Fri 4/176:00 am
AUS
- BOI
1 stop18h 47m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$304
This Alaska Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/212:22 pm
BOI
- AUS
1 stop9h 12m
Alaska Airlines
Tue 4/286:00 am
AUS
- BOI
1 stop7h 35m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 3/23. 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.
Tue 4/216:00 am
BOI
- AUS
2 stops8h 20m
Southwest
Tue 4/286:55 pm
AUS
- BOI
1 stop5h 35m
Southwest
Deal found 3/23![Southwest logo]()
$268
This Southwest deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/215:10 am
GEG
- AUS
1 stop6h 10m
Southwest
Tue 4/286:55 pm
AUS
- GEG
1 stop6h 00m
Southwest
Deal found 3/24![Southwest logo]()
$279
This Delta deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 4/221:52 pm
BOI
- AUS
1 stop8h 56m
Delta
Thu 4/236:15 am
AUS
- BOI
1 stop9h 11m
Delta
Deal found 3/24![Delta logo]()
$290
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 March 25, 2026.
Search for one-way flight options from Idaho to Austin. Find affordable one-way fares based on user searches. Data last updated March 25, 2026.
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/241:25 pm
BOI
- AUS
1 stop19h 18m
Frontier
Deal found 3/23![Frontier logo]()
$86
This Priceline deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/41:25 pm
BOI
- AUS
1 stop5h 53m
Frontier
Deal found 3/24![Frontier logo]()
$105
This Priceline deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:44 am
GEG
- AUS
1 stop6h 52m
Frontier
Deal found 3/22![Frontier logo]()
$105
This Expedia deal was found by Cheapflights users on 3/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/1611:44 am
GEG
- AUS
1 stop20h 21m
Frontier
Deal found 3/22![Frontier logo]()
$112
This Expedia deal was found by Cheapflights users on 3/23. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/212:03 pm
BOI
- AUS
1 stop11h 18m
Frontier
Deal found 3/23![Frontier logo]()
$131
This Kiwi.com deal was found by Cheapflights users on 3/20. 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 7/28:51 pm
GEG
- AUS
1 stop12h 26m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$139
This Travelocity deal was found by Cheapflights users on 3/23. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/285:00 am
GEG
- AUS
1 stop7h 39m
Alaska Airlines
Deal found 3/23![Alaska Airlines logo]()
$140
This Priceline deal was found by Cheapflights users on 3/23. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/71:25 pm
BOI
- AUS
1 stop5h 53m
Frontier
Deal found 3/23![Frontier logo]()
$145
This United Airlines deal was found by Cheapflights users on 3/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/287:00 am
GEG
- AUS
2 stops12h 42m
United Airlines
Deal found 3/23![United Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 3/22. 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.
Mon 4/2011:45 am
GEG
- AUS
2 stops27h 33m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$154
This American Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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.
Fri 5/224:14 pm
JAC
- AUS
1 stop5h 28m
American Airlines
Deal found 3/25![American Airlines logo]()
$156
This Kiwi.com deal was found by Cheapflights users on 3/24. Clicking the “Pick Dates” 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 5/171:22 pm
BOI
- AUS
1 stop29h 56m
Frontier
Deal found 3/24![Frontier logo]()
$157
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 March 25, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $171 (CheapOair) |
One-way from | $86 (Expedia) |
Popular in | March |
Cheapest in | January |
Average price | $474 |
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 2,558,603 searches. Data last updated March 25, 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 - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 4/21
6:00 am-3:20 pm
2 stops8h 20m
Austin Bergstrom
Tue 4/28
6:55 pm-11:30 pm
1 stop5h 35m
$268
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Fri 5/1
5:56 pm-11:00 pm
1 stop28h 04m
Austin Bergstrom
Tue 5/5
1:36 pm-9:26 pm
1 stop8h 50m
$292
SpokaneAustin
GEG - AUS
GEGAUS
Spokane
Sat 5/2
7:27 am-7:19 pm
1 stop9h 52m
Austin Bergstrom
Tue 5/5
6:00 am-10:20 pm
1 stop18h 20m
$292
JacksonAustin
JAC - AUS
JACAUS
Jackson Hole
Thu 5/28
2:44 pm-9:54 pm
1 stop6h 10m
Austin Bergstrom
Tue 6/2
5:39 am-9:46 am
1 stop5h 07m
$311
SpokaneAustin
GEG - AUS
GEGAUS
Spokane
Tue 4/14
5:10 am-3:20 pm
2 stops8h 10m
Austin Bergstrom
Thu 4/23
7:20 pm-12:30 am
1 stop7h 10m
$312
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Sat 4/18
4:23 pm-11:51 pm
1 stop6h 28m
Austin Bergstrom
Sat 4/25
6:00 am-1:52 pm
1 stop8h 52m
$317
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 5/12
6:00 am-3:20 pm
2 stops8h 20m
Austin Bergstrom
Tue 5/19
6:05 pm-11:20 pm
1 stop6h 15m
$322
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Wed 4/22
10:22 am-11:00 pm
2 stops11h 38m
Austin Bergstrom
Thu 4/23
5:49 pm-11:59 pm
1 stop7h 10m
$329
SpokaneAustin
GEG - AUS
GEGAUS
Spokane
Mon 5/4
5:50 am-7:00 pm
2 stops11h 10m
Austin Bergstrom
Mon 5/4
8:25 pm-12:30 am
1 stop6h 05m
$340
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Fri 6/5
11:39 pm-9:33 am
1 stop8h 54m
Austin Bergstrom
Mon 6/8
4:15 pm-11:04 pm
1 stop7h 49m
$344
Showing 1-10 of 59 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
GEG-AUS
JAC-AUS
IDA-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
GEG-AUS
JAC-AUS
IDA-AUS
What is the cheapest month to book a flight from Idaho to Austin?
Currently, July is the cheapest month in which you can book a flight from Idaho to Austin (average of $131). Flying from Idaho to Austin in March is currently the most expensive (average of $276). 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?
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
San Marcos
Fredericksburg
Round Rock
Pflugerville
Georgetown
Bastrop
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay
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.
Alternative routes
Austin flight routes
Complete your trip
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Alternative routes for Idaho to Austin
See prices for flight routes from nearby airports that may be better suited for you.
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 March 25, 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
Find flights from Idaho to Austin, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Idaho and Austin flights
Browse other Idaho and Austin flight options. Last updated on March 25, 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 2,558,603 searches. Data last updated March 25, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$248 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$166 | Average$399 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$394 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$267 | Average$468 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$271 | Average$450 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$278 | Average$338 | FlexibilityNo cancel fee | On-time71% |