$105+ Cheap flights from Austin (AUS) to Idaho
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/14. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Jun 8 — Jun 151
Round-trip
1 adult, Economy
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Cheapest flights from Austin to IdahoExplore the most affordable flight options available from Austin to Idaho. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 9, 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 May 9, 2026.
This Frontier deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 7/281:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/5![Frontier logo]()
$210
This Expedia deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Tue 8/181:04 pm
BOI
- AUS
1 stop5h 26m
Frontier
Deal found 5/7![Frontier logo]()
$224
This Frontier deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Wed 7/86:30 am
AUS
- GEG
1 stop7h 07m
Frontier
Fri 7/1012:32 pm
GEG
- AUS
1 stop9h 35m
Frontier
Deal found 5/6![Frontier logo]()
$230
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:15 pm
AUS
- BOI
1 stop17h 14m
Frontier
Tue 7/141:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/7![Frontier logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/89:13 pm
AUS
- BOI
1 stop16h 17m
Frontier
Tue 6/161:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$237
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Sun 6/281:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/6![Frontier logo]()
$239
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:13 pm
AUS
- GEG
1 stop16h 25m
Frontier
Wed 6/1012:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/6![Frontier logo]()
$239
This Booking.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$242
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/89:13 pm
AUS
- BOI
1 stop16h 17m
Frontier
Thu 6/111:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$243
This Frontier deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/136:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Sun 8/161:25 pm
BOI
- AUS
1 stop9h 42m
Frontier
Deal found 5/5![Frontier logo]()
$244
This Frontier deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Wed 7/112:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/6![Frontier logo]()
$244
This Expedia deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/5![Frontier logo]()
$250
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 May 9, 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 May 9, 2026.
This Alaska Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/247:15 am
AUS
- IDA
1 stop6h 51m
Alaska Airlines
Fri 6/264:14 pm
IDA
- AUS
1 stop6h 35m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$323
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/188:10 am
AUS
- SUN
1 stop7h 35m
Delta
Sat 9/263:25 pm
SUN
- AUS
1 stop4h 49m
Delta
Deal found 5/8![Delta logo]()
$351
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/18:10 pm
AUS
- BOI
1 stop5h 35m
Southwest
Sat 6/610:25 am
BOI
- AUS
1 stop7h 35m
Southwest
Deal found 5/5![Southwest logo]()
$365
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 7/282:18 pm
AUS
- BOI
2 stops8h 47m
United Airlines
Fri 7/312:41 pm
BOI
- AUS
1 stop6h 16m
United Airlines
Deal found 5/8![United Airlines logo]()
$378
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/2110:52 pm
AUS
- IDA
1 stop15h 08m
Multiple Airlines
Mon 5/257:48 pm
IDA
- AUS
1 stop24h 59m
Multiple Airlines
Deal found 5/5![Multiple Airlines logo]()
$450
This Alaska Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 8/14:17 pm
AUS
- SUN
1 stop18h 21m
Alaska Airlines
Mon 8/107:43 pm
SUN
- AUS
1 stop18h 31m
Alaska Airlines
Deal found 5/6![Alaska Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 6/36:14 pm
AUS
- BOI
1 stop7h 34m
Delta
Sun 6/711:45 pm
BOI
- AUS
1 stop8h 45m
Delta
Deal found 5/6![Delta logo]()
$365
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/36:25 am
AUS
- BOI
1 stop7h 05m
Southwest
Wed 6/35:15 pm
BOI
- AUS
2 stops13h 50m
Southwest
Deal found 5/4![Southwest logo]()
$368
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:15 pm
AUS
- GEG
2 stops10h 50m
United Airlines
Tue 8/114:00 pm
GEG
- AUS
1 stop5h 41m
United Airlines
Deal found 5/5![United Airlines logo]()
$396
This Alaska Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/247:15 am
AUS
- IDA
1 stop6h 51m
Alaska Airlines
Thu 7/27:15 am
IDA
- AUS
1 stop9h 49m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$368
This Southwest deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
AUS
- BOI
1 stop6h 30m
Southwest
Sat 7/115:10 pm
BOI
- AUS
1 stop5h 55m
Southwest
Deal found 5/7![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 6/56:08 pm
AUS
- BOI
1 stop6h 45m
Delta
Mon 6/811:45 pm
BOI
- AUS
1 stop10h 19m
Delta
Deal found 5/6![Delta logo]()
$373
This Southwest deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/119:35 pm
AUS
- BOI
1 stop5h 10m
Southwest
Sat 6/135:10 pm
BOI
- AUS
1 stop5h 55m
Southwest
Deal found 5/4![Southwest logo]()
$373
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/16:14 pm
AUS
- BOI
1 stop6h 32m
Delta
Sat 6/63:14 pm
BOI
- AUS
1 stop7h 43m
Delta
Deal found 5/8![Delta logo]()
$375
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/65:39 am
AUS
- IDA
1 stop5h 11m
United Airlines
Fri 6/125:54 pm
IDA
- AUS
1 stop4h 50m
United Airlines
Deal found 5/8![United Airlines logo]()
$419
This Alaska Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/185:49 pm
AUS
- GEG
1 stop7h 25m
Alaska Airlines
Mon 9/211:33 pm
GEG
- AUS
1 stop7h 41m
Alaska Airlines
Deal found 5/5![Alaska Airlines logo]()
$391
This Southwest deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/257:40 pm
AUS
- BOI
1 stop7h 05m
Southwest
Mon 6/293:25 pm
BOI
- AUS
2 stops8h 40m
Southwest
Deal found 5/7![Southwest logo]()
$378
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 7/1312:00 pm
AUS
- SUN
2 stops11h 07m
Delta
Fri 7/171:10 pm
SUN
- AUS
2 stops9h 19m
Delta
Deal found 5/4![Delta logo]()
$380
This United Airlines deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 5/292:45 pm
AUS
- SUN
1 stop7h 41m
United Airlines
Mon 6/11:57 pm
SUN
- AUS
2 stops8h 47m
United Airlines
Deal found 5/8![United Airlines logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 5/193:47 pm
AUS
- IDA
1 stop8h 06m
Alaska Airlines
Sat 5/236:00 am
IDA
- AUS
1 stop7h 47m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$409
This Southwest deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/65:00 pm
AUS
- GEG
2 stops9h 05m
Southwest
Mon 6/85:10 pm
GEG
- AUS
1 stop5h 55m
Southwest
Deal found 5/8![Southwest logo]()
$379
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
AUS
- BOI
1 stop6h 38m
Delta
Tue 7/147:00 am
BOI
- AUS
1 stop7h 20m
Delta
Deal found 5/8![Delta logo]()
$383
This United Airlines deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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 10/318:53 am
AUS
- SUN
1 stop5h 51m
United Airlines
Tue 11/32:29 pm
SUN
- AUS
1 stop5h 27m
United Airlines
Deal found 5/6![United Airlines logo]()
$441
This Southwest deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/216:35 pm
AUS
- BOI
2 stops6h 55m
Southwest
Tue 7/285:30 am
BOI
- AUS
2 stops9h 55m
Southwest
Deal found 5/5![Southwest logo]()
$383
This Alaska Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/47:15 am
AUS
- IDA
1 stop7h 02m
Alaska Airlines
Wed 6/104:14 pm
IDA
- AUS
1 stop6h 35m
Alaska Airlines
Deal found 5/7![Alaska Airlines logo]()
$428
This Delta deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:59 pm
AUS
- GEG
1 stop7h 03m
Delta
Sat 7/186:50 am
GEG
- AUS
1 stop7h 17m
Delta
Deal found 5/4![Delta logo]()
$391
This United Airlines deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 5/204:45 pm
AUS
- JAC
1 stop5h 13m
United Airlines
Sun 5/241:42 pm
JAC
- AUS
2 stops8h 00m
United Airlines
Deal found 5/5![United Airlines logo]()
$462
This Southwest deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/65:35 pm
AUS
- GEG
1 stop7h 05m
Southwest
Thu 8/136:30 am
GEG
- AUS
1 stop5h 40m
Southwest
Deal found 5/7![Southwest logo]()
$391
This Delta deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 7/67:25 pm
AUS
- GEG
1 stop6h 34m
Delta
Sun 7/1210:48 pm
GEG
- AUS
1 stop10h 15m
Delta
Deal found 5/8![Delta logo]()
$391
This Alaska Airlines deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 7/47:59 pm
AUS
- JAC
1 stop20h 08m
Alaska Airlines
Sat 7/113:47 pm
JAC
- AUS
1 stop7h 02m
Alaska Airlines
Deal found 5/4![Alaska Airlines logo]()
$439
Last-minute flights from Austin to IdahoDiscover last-minute flight deals from Austin to Idaho. Data last updated May 9, 2026 and is based on user searches.
Discover last-minute flight deals from Austin to Idaho. Data last updated May 9, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/110:28 am
AUS
- BOI
1 stop27h 02m
Frontier
Thu 6/41:33 pm
BOI
- AUS
1 stop19h 10m
Frontier
Deal found 5/9![Frontier logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/69:13 pm
AUS
- BOI
1 stop16h 25m
Frontier
Tue 6/161:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/69:13 pm
AUS
- BOI
1 stop16h 25m
Frontier
Thu 6/111:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$266
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:13 pm
AUS
- GEG
1 stop16h 25m
Frontier
Wed 6/1012:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/6![Frontier logo]()
$239
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/89:13 pm
AUS
- BOI
1 stop16h 17m
Frontier
Tue 6/161:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$237
This Kiwi.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” 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 6/89:13 pm
AUS
- BOI
1 stop16h 17m
Frontier
Thu 6/111:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$243
This Booking.com deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/108:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/8![Frontier logo]()
$242
This Expedia deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 6/116:30 am
AUS
- BOI
1 stop7h 00m
Frontier
Sun 6/141:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/5![Frontier logo]()
$250
This Expedia deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” 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.
Mon 6/156:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Fri 6/2612:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/6![Frontier logo]()
$250
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” 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 6/2112:12 pm
AUS
- IDA
1 stop28h 56m
Multiple Airlines
Mon 6/2910:56 pm
IDA
- AUS
2 stops19h 34m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$274
This Frontier deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/226:30 am
AUS
- GEG
1 stop7h 06m
Frontier
Wed 7/112:31 pm
GEG
- AUS
1 stop9h 28m
Frontier
Deal found 5/6![Frontier logo]()
$244
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/248:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Sun 6/281:25 pm
BOI
- AUS
1 stop9h 34m
Frontier
Deal found 5/6![Frontier logo]()
$239
One-way flights from Austin to IdahoSearch for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
Search for one-way flight options from Austin to Idaho. Find affordable one-way fares based on user searches. Data last updated May 9, 2026.
This Expedia deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 5/5![Frontier logo]()
$105
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/178:15 pm
AUS
- BOI
1 stop17h 15m
Frontier
Deal found 5/6![Frontier logo]()
$115
This Frontier deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/236:30 am
AUS
- BOI
1 stop6h 59m
Frontier
Deal found 5/5![Frontier logo]()
$125
This Frontier deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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.
Fri 7/176:30 am
AUS
- GEG
1 stop7h 07m
Frontier
Deal found 5/7![Frontier logo]()
$125
This Mytrip deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/118:15 pm
AUS
- BOI
1 stop17h 14m
Frontier
Deal found 5/8![Frontier logo]()
$129
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:13 pm
AUS
- GEG
1 stop16h 25m
Frontier
Deal found 5/6![Frontier logo]()
$135
This American Airlines deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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.
Mon 6/1512:43 pm
AUS
- JAC
1 stop7h 41m
American Airlines
Deal found 5/9![American Airlines logo]()
$156
This Alaska Airlines deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” 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 6/247:15 am
AUS
- IDA
1 stop6h 51m
Alaska Airlines
Deal found 5/7![Alaska Airlines logo]()
$164
This Mytrip deal was found by Cheapflights users on 5/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/209:13 pm
AUS
- BOI
1 stop16h 17m
Frontier
Deal found 5/6![Frontier logo]()
$165
This Mytrip deal was found by Cheapflights users on 5/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2110:28 am
AUS
- GEG
1 stop27h 10m
Frontier
Deal found 5/7![Frontier logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 5/5. Clicking the “Pick Dates” 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 7/1211:49 am
AUS
- IDA
1 stop29h 11m
Allegiant Air
Deal found 5/5![Allegiant Air logo]()
$166
This Delta deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” 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 6/157:20 am
AUS
- JAC
2 stops10h 40m
Delta
Deal found 5/9![Delta logo]()
$167
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 May 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $210 (Frontier) |
One-way from | $105 (Priceline) |
Popular in | March |
Cheapest in | February |
Average price | $388 |
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 May 9, 2026.
Use the filters below to find and compare flights from Austin to Idaho that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AustinIdaho Falls
AUS - IDA
AUSIDA
Austin Bergstrom
Wed 6/24
7:15 am-1:06 pm
1 stop6h 51m
Idaho Falls Fanning Field
Fri 6/26
4:14 pm-11:49 pm
1 stop6h 35m
$323
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Fri 9/18
8:10 am-2:45 pm
1 stop7h 35m
Hailey Sun Valley-Friedman
Sat 9/26
3:25 pm-9:14 pm
1 stop4h 49m
$351
AustinHailey
AUS - SUN
AUSSUN
Austin Bergstrom
Sat 8/1
4:17 pm-9:38 am
1 stop18h 21m
Hailey Sun Valley-Friedman
Mon 8/10
7:43 pm-3:14 pm
1 stop18h 31m
$351
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Mon 6/1
8:10 pm-12:45 am
1 stop5h 35m
Boise Air Term. Gowen Fld
Sat 6/6
10:25 am-7:00 pm
1 stop7h 35m
$365
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 6/3
6:14 pm-12:48 am
1 stop7h 34m
Boise Air Term. Gowen Fld
Sun 6/7
11:45 pm-9:30 am
1 stop8h 45m
$365
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Wed 6/3
6:25 am-12:30 pm
1 stop7h 05m
Boise Air Term. Gowen Fld
Wed 6/3
5:15 pm-8:05 am
2 stops13h 50m
$368
AustinIdaho Falls
AUS - IDA
AUSIDA
Austin Bergstrom
Wed 6/24
7:15 am-1:06 pm
1 stop6h 51m
Idaho Falls Fanning Field
Thu 7/2
7:15 am-6:04 pm
1 stop9h 49m
$368
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Sat 7/11
6:00 am-11:30 am
1 stop6h 30m
Boise Air Term. Gowen Fld
Sat 7/11
5:10 pm-12:05 am
1 stop5h 55m
$373
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Fri 6/5
6:08 pm-11:53 pm
1 stop6h 45m
Boise Air Term. Gowen Fld
Mon 6/8
11:45 pm-11:04 am
1 stop10h 19m
$373
AustinBoise
AUS - BOI
AUSBOI
Austin Bergstrom
Thu 6/11
9:35 pm-1:45 am
1 stop5h 10m
Boise Air Term. Gowen Fld
Sat 6/13
5:10 pm-12:05 am
1 stop5h 55m
$373
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Austin to Idaho
Have a flexible travel schedule? Discover the best time to fly to Idaho from Austin with our price prediction graph.
AUS-BOI
AUS-GEG
AUS-IDA
AUS-SUN
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-BOI
AUS-GEG
AUS-IDA
AUS-SUN
How far ahead should I book a flight from Austin to Idaho?
The best time to book flights from Austin to Idaho is 8 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Austin to Idaho?
Currently, December is the cheapest month in which you can book a flight from Austin to Idaho (average of $78). Flying from Austin to Idaho in April is currently the most expensive (average of $308). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Austin to Idaho?
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 May 9, 2026.
Read through reviews of airlines operating flights from Austin to Idaho, such as Southwest,Delta, andUnited Airlines. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
Comfort
8.0
Food
7.0
Overall
8.0
Boarding
8.1
Entertainment
7.5
Crew
8.6
Reviews
1 / 20
2.0
MediocreDominic,Mar 2026
MCO - SMF
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 May 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Austin to Idaho flights
Consider these flights traveling from Austin to Idaho.
Top 6 airlines flying from Austin to Idaho
Discover the top 6 airlines that operate flights from Austin to Idaho. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$126 | Average$220 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$139 | Average$361 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$397 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$237 | Average$464 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$237 | Average$370 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$261 | Average$391 | FlexibilityNo cancel fee | On-time63% |