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$119+ 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 9/26. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Sep 10 — Sep 171
Wed 9/10
Wed 9/17
1 adult, Economy
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Cheap flight deals from Idaho to Austin

Keep the following information in mind while searching for Idaho to Austin flight deals. Data was last updated September 5, 2025.

Round-trip from

$153
(Frontier)

One-way from

$119
(Kiwi.com)

Popular in

March

Cheapest in

September

Average price

$327
From Idaho to Austin Bergstrom
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One-way flight from Idaho to Austin Bergstrom
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Highest demand for flights based on searches. 0% potential increase in price ($1 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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Find 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 September 5, 2025.

This Frontier deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 10/2412:28 pmBOI - AUS
1 stop11h 05mFrontier
Sun 10/266:00 amAUS - BOI
1 stop6h 43mFrontier
Deal found 9/2$153
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:22 pmBOI - AUS
1 stop10h 10mFrontier
Thu 9/256:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 9/4$178
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” 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 9/1112:22 pmBOI - AUS
1 stop10h 10mFrontier
Sun 9/146:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 9/3$191
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” 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 10/3012:33 pmBOI - AUS
2 stops20h 47mFrontier
Sun 11/25:00 amAUS - BOI
1 stop6h 48mFrontier
Deal found 9/3$194
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2312:03 pmGEG - AUS
1 stop10h 30mFrontier
Sun 10/266:00 amAUS - GEG
1 stop7h 08mFrontier
Deal found 9/4$209
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/212:22 pmBOI - AUS
1 stop10h 10mFrontier
Thu 10/96:00 amAUS - BOI
1 stop6h 43mFrontier
Deal found 9/4$215
This Priceline deal was found by Cheapflights users on 9/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1111:53 amGEG - AUS
1 stop9h 39mFrontier
Sun 9/146:30 amAUS - GEG
1 stop6h 28mFrontier
Deal found 9/4$218
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:22 pmBOI - AUS
1 stop10h 10mFrontier
Sun 9/216:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 9/4$223
This Frontier deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” 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 10/311:53 amGEG - AUS
1 stop9h 39mFrontier
Sun 10/56:30 amAUS - GEG
1 stop6h 28mFrontier
Deal found 9/3$225
This Frontier deal was found by Cheapflights users on 9/4. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:22 pmBOI - AUS
1 stop10h 10mFrontier
Fri 9/196:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 9/4$231
This Priceline deal was found by Cheapflights users on 9/4. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1211:53 amGEG - AUS
1 stop6h 35mFrontier
Sun 9/146:30 amAUS - GEG
1 stop6h 28mFrontier
Deal found 9/4$234
This Kiwi.com deal was found by Cheapflights users on 9/3. Clicking the “Pick Dates” 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 10/22:16 pmBOI - AUS
1 stop18h 35mMultiple Airlines
Mon 10/61:00 pmAUS - BOI
1 stop7h 56mMultiple Airlines
Deal found 9/3$242

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 September 5, 2025.
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 10/30

12:33 pm-12:32 am

1 stop10h 59m

Austin Bergstrom

Sun 11/2

5:00 am-10:48 am

1 stop6h 48m

$153

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 11/13

12:33 pm-12:32 am

1 stop10h 59m

Austin Bergstrom

Sun 11/16

6:00 am-11:48 am

1 stop6h 48m

$153

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 10/24

12:28 pm-12:33 am

1 stop11h 05m

Austin Bergstrom

Sun 10/26

6:00 am-11:43 am

1 stop6h 43m

$153

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/18

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Thu 9/25

6:30 am-11:37 am

1 stop6h 07m

$178

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/19

12:22 pm-8:28 pm

1 stop7h 06m

Austin Bergstrom

Thu 9/25

6:30 am-11:37 am

1 stop6h 07m

$178

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 10/23

12:03 pm-12:33 am

1 stop10h 30m

Austin Bergstrom

Sun 10/26

6:00 am-11:08 am

1 stop7h 08m

$209

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 10/2

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Thu 10/9

6:00 am-11:43 am

1 stop6h 43m

$215

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/19

12:22 pm-8:28 pm

1 stop7h 06m

Austin Bergstrom

Sun 9/21

6:30 am-11:37 am

1 stop6h 07m

$223

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/18

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Sun 9/21

6:30 am-11:37 am

1 stop6h 07m

$223

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Fri 10/3

11:53 am-11:32 pm

1 stop9h 39m

Austin Bergstrom

Sun 10/5

6:30 am-10:58 am

1 stop6h 28m

$225

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/3

Showing 1-10 of 59 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, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $286). Flying from Idaho to Austin in March is currently the most expensive (average of $362). 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.

What is the cheapest time of day to fly from ID to AUS?

Find hourly flight availability from Idaho to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 5, 2025.

When flying from Idaho to Austin, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

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 8h 43m. Fly via Frontier, Alaska Airlines, or Hawaiian Airlines to get the fastest option. The distance between Idaho and Austin is about 1599 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 Alaska Airlines, with whom users have recently found tickets for as low as $127. However, be on the lookout for offers from Hawaiian Airlines and Delta, 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 Idaho Falls Fanning Field - 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, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $286). Flying from Idaho to Austin in March is currently the most expensive (average of $362). 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
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

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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 September 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$279FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$401FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$245Average$468FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$272Average$470FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$404FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$592FlexibilityNo cancel feeOn-time69%

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