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$95+ 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 4/16. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Mar 24 — Mar 311
Tue 3/24
Tue 3/31
1 adult, Economy
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Cheap flight deals from Idaho to Austin

Cheapest flights from Idaho to Austin
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 February 22, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
-
AUS
1 stop10h 38m
Frontier
Thu 3/56:45 am
AUS
-
BOI
1 stop6h 06m
Frontier
Deal found 2/18$188
This Frontier deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:03 pm
BOI
-
AUS
1 stop11h 18m
Frontier
Sun 4/126:45 am
AUS
-
BOI
1 stop5h 23m
Frontier
Deal found 2/20$190
This Frontier deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/3011:32 am
GEG
-
AUS
1 stop10h 49m
Frontier
Sun 5/36:45 am
AUS
-
GEG
1 stop5h 46m
Frontier
Deal found 2/19$190
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:56 am
BOI
-
AUS
1 stop11h 20m
Frontier
Wed 3/48:30 am
AUS
-
BOI
1 stop28h 21m
Frontier
Deal found 2/18$193
This Kiwi.com deal was found by Cheapflights users on 2/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2612:15 pm
BOI
-
AUS
1 stop11h 01m
Frontier
Sat 3/2810:45 pm
AUS
-
BOI
1 stop13h 35m
Frontier
Deal found 2/21$202
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
-
AUS
1 stop10h 38m
Frontier
Sat 3/711:01 am
AUS
-
BOI
1 stop24h 19m
Frontier
Deal found 2/18$214
This Kiwi.com deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/2711:56 am
BOI
-
AUS
1 stop11h 20m
Frontier
Sat 3/711:01 am
AUS
-
BOI
1 stop24h 19m
Frontier
Deal found 2/18$220
This Kiwi.com deal was found by Cheapflights users on 2/22. 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.
Sun 3/112:59 pm
GEG
-
AUS
1 stop18h 22m
Frontier
Wed 3/48:30 am
AUS
-
GEG
1 stop28h 57m
Frontier
Deal found 2/22$231
This Frontier deal was found by Cheapflights users on 2/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
-
AUS
1 stop10h 38m
Frontier
Fri 2/276:45 am
AUS
-
BOI
1 stop5h 26m
Frontier
Deal found 2/19$232
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:30 am
BOI
-
AUS
1 stop7h 05m
Delta
Tue 3/316:06 pm
AUS
-
BOI
1 stop6h 39m
Delta
Deal found 2/20$243
This Delta deal was found by Cheapflights users on 2/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/301:07 pm
GEG
-
AUS
1 stop8h 41m
Delta
Mon 5/46:00 am
AUS
-
GEG
1 stop8h 27m
Delta
Deal found 2/20$243
This Expedia deal was found by Cheapflights users on 2/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:53 am
BOI
-
AUS
1 stop11h 28m
Multiple Airlines
Sat 4/253:39 pm
AUS
-
BOI
1 stop9h 20m
Multiple Airlines
Deal found 2/18$244

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 February 22, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$190
(Frontier)

One-way from

$95
(Priceline)

Popular in

March

Cheapest in

September

Average price

$432
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Austin Bergstrom flights.
Search Deals
From Idaho to Austin Bergstrom
Search Deals
One-way flight from Idaho to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 12% potential increase in price ($52 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in February 2026
Search Deals

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 February 22, 2026.
Use the filters below to find and compare flights from Idaho to Austin that are best for you.

Fly from

Idaho

Fly to

Austin

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 4/9

12:03 pm-12:21 am

1 stop11h 18m

Austin Bergstrom

Sun 4/12

6:45 am-11:08 am

1 stop5h 23m

$190

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 3/28

1:45 pm-11:53 pm

1 stop9h 08m

Austin Bergstrom

Tue 3/31

6:03 am-1:05 pm

1 stop8h 02m

$243

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 4/30

1:52 pm-11:48 pm

1 stop8h 56m

Austin Bergstrom

Mon 5/4

5:55 pm-12:17 am

1 stop7h 22m

$243

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Fri 4/24

3:30 pm-11:48 pm

1 stop6h 18m

Austin Bergstrom

Mon 4/27

6:00 am-10:45 am

1 stop6h 45m

$243

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 4/23

5:40 am-6:14 pm

2 stops11h 34m

Austin Bergstrom

Sat 4/25

6:00 am-1:12 pm

1 stop8h 12m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 5/1

8:59 am-9:15 pm

2 stops11h 16m

Austin Bergstrom

Mon 5/4

5:55 pm-12:17 am

1 stop7h 22m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 5/4

3:44 pm-11:48 pm

1 stop7h 04m

Austin Bergstrom

Mon 5/11

1:21 pm-11:55 pm

2 stops11h 34m

$248

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 5/13

6:10 am-5:11 pm

1 stop9h 01m

Austin Bergstrom

Sat 5/16

7:25 am-4:56 pm

2 stops11h 31m

$248

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 4/30

11:25 am-11:35 pm

2 stops10h 10m

Austin Bergstrom

Mon 5/4

5:55 pm-12:20 am

1 stop8h 25m

$248

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 4/22

11:25 am-11:35 pm

2 stops10h 10m

Austin Bergstrom

Sat 4/25

6:00 am-12:27 pm

1 stop8h 27m

$248

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/18

Showing 1-10 of 55 results
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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.
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

What is the cheapest month to book a flight from Idaho to Austin?

Currently, February is the cheapest month in which you can book a flight from Idaho to Austin (average of $114). Flying from Idaho to Austin in August is currently the most expensive (average of $244). 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.

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.

  • What airport do you fly into for flights to Austin from Idaho?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly into when you book flights from Idaho to Austin.

  • How long is the flight from Idaho to Austin?

    There are many flights that can get you from Idaho to Austin in 7h. Fly via Frontier, Delta, or American Airlines to get the fastest option. The distance between Idaho and Austin is about 1171 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Idaho to Austin one-way?

    The cheapest airline one-way is Delta, with whom users have recently found tickets for as low as $98. However, be on the lookout for offers from Southwest and Alaska Airlines, as they are both options that can get you from Idaho to Austin for a low price.

  • What are the most popular routes from Idaho to Austin?

    The most popular route from Idaho to Austin is Boise Air Term. Gowen Fld - Austin Bergstrom. You may also consider Spokane - Austin Bergstrom or Jackson Hole - Austin Bergstrom.

  • Can I find deals for flights from Idaho to Austin that include hotel bookings?

    Yes. In addition to deals on Idaho to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Austin.

  • Can I find deals for business class flights from Idaho to Austin?

    Yes. Cheapflights offers flight deals from Idaho to Austin by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Idaho to Austin?

    Currently, February is the cheapest month in which you can book a flight from Idaho to Austin (average of $114). Flying from Idaho to Austin in August is currently the most expensive (average of $244). 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.

See more FAQs

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Cedar Park
San Marcos
Fredericksburg
Round Rock
Georgetown
Bastrop
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next 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.
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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 February 22, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$164Average$240FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$183Average$376FlexibilityNo cancel feeOn-time63%
DeltaCheapest$185Average$396FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$246Average$448FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$250Average$478FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$275Average$342FlexibilityNo cancel feeOn-time71%

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