Idaho

$71+ 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 2/19. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
févr. 7 — févr. 141
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austin to Idaho with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Austin to Idaho

Keep the following information in mind while searching for Austin to Idaho flight deals. Data was last updated janvier 8, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$131
(Kiwi.com)

One-way from

$71
(WAYA)

Popular in

June

Cheapest in

January

Average price

$268
Provider with most accurate pricing for Austin Bergstrom-Boise Air Term. Gowen Fld flight deals.
Provider most trusted by Cheapflights users for Austin Bergstrom-Boise Air Term. Gowen Fld flights.
From Austin Bergstrom to Idaho
One-way flight from Austin Bergstrom to Idaho
Highest demand for flights based on searches. 5% potential increase in price ($19 potential increase over avg. RT price).
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Average for round-trip flights in January 2026

Find flight deals from Austin to Idaho

Cheapest flights from Austin to Idaho
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 janvier 8, 2026.

This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 1/223:16 pmAUS - BOI
1 stop20h 56mFrontier
lun. 1/2612:07 pmBOI - AUS
1 stop11h 09mFrontier
Deal found 1/7$131
This Kiwi.com deal was found by Cheapflights users on 1/7. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 2/2610:06 amAUS - BOI
1 stop26h 05mFrontier
dim. 3/111:56 amBOI - AUS
1 stop20h 25mFrontier
Deal found 1/7$132
This American Airlines deal was found by Cheapflights users on 1/6. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 1/276:05 amAUS - BOI
1 stop8h 03mAmerican Airlines
mar. 2/37:20 amBOI - AUS
1 stop6h 49mAmerican Airlines
Deal found 1/6$167
This Expedia deal was found by Cheapflights users on 1/7. 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.
jeu. 1/296:55 amAUS - GEG
1 stop6h 13mFrontier
dim. 2/112:03 pmGEG - AUS
1 stop5h 27mFrontier
Deal found 1/7$177
This Delta deal was found by Cheapflights users on 1/6. 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.
mer. 2/114:55 pmAUS - GEG
1 stop7h 57mDelta
mar. 2/171:25 pmGEG - AUS
1 stop8h 31mDelta
Deal found 1/6$181
This Travelocity deal was found by Cheapflights users on 1/7. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
lun. 4/68:35 amAUS - BOI
1 stop7h 54mMultiple Airlines
jeu. 4/91:30 pmBOI - AUS
1 stop9h 44mMultiple Airlines
Deal found 1/7$182
This Delta deal was found by Cheapflights users on 1/8. 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.
jeu. 2/264:55 pmAUS - BOI
1 stop7h 50mDelta
mar. 3/31:51 pmBOI - AUS
1 stop9h 05mDelta
Deal found 1/8$183
This Expedia deal was found by Cheapflights users on 1/7. 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.
jeu. 2/196:45 amAUS - BOI
1 stop6h 06mMultiple Airlines
lun. 2/236:00 pmBOI - AUS
1 stop19h 35mMultiple Airlines
Deal found 1/7$190
This Southwest deal was found by Cheapflights users on 1/5. 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.
jeu. 2/194:45 pmAUS - BOI
1 stop7h 10mSouthwest
lun. 2/231:35 pmBOI - AUS
1 stop9h 05mSouthwest
Deal found 1/5$199
This Southwest deal was found by Cheapflights users on 1/8. 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.
jeu. 3/126:20 amAUS - GEG
1 stop7h 25mSouthwest
mar. 3/171:55 pmGEG - AUS
1 stop6h 45mSouthwest
Deal found 1/8$199
This CheapOair deal was found by Cheapflights users on 1/7. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sam. 3/710:45 pmAUS - BOI
1 stop12h 27mMultiple Airlines
mar. 3/106:28 amBOI - AUS
1 stop7h 07mMultiple Airlines
Deal found 1/7$202
This Orbitz deal was found by Cheapflights users on 1/6. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jeu. 1/226:55 amAUS - GEG
1 stop6h 13mMultiple Airlines
mar. 1/278:00 amGEG - AUS
1 stop6h 39mMultiple Airlines
Deal found 1/6$203

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 janvier 8, 2026.
Use the filters below to find and compare flights from Austin to Idaho that are best for you.

Fly from

Austin

Fly to

Idaho

Route

Depart

Return

Price

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

jeu. 2/26

10:06 am-11:11 am

1 stop26h 05m

Boise Air Term. Gowen Fld

dim. 3/1

11:56 am-9:21 am

1 stop20h 25m

$132

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

mer. 2/4

5:30 am-12:30 pm

1 stop8h 00m

Boise Air Term. Gowen Fld

mer. 2/11

11:20 am-5:49 pm

1 stop5h 29m

$167

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

jeu. 1/29

6:55 am-11:08 am

1 stop6h 13m

Spokane

dim. 2/1

12:03 pm-7:30 pm

1 stop5h 27m

$177

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

mer. 2/11

4:55 pm-10:52 pm

1 stop7h 57m

Spokane

mar. 2/17

1:25 pm-11:56 pm

1 stop8h 31m

$181

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

jeu. 2/26

4:55 pm-11:45 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

mar. 3/3

5:20 am-1:01 pm

1 stop6h 41m

$183

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

mer. 2/4

7:15 am-3:10 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

mer. 2/11

9:02 am-5:59 pm

1 stop7h 57m

$199

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

jeu. 1/29

1:59 pm-10:18 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

jeu. 2/5

5:20 am-1:02 pm

1 stop6h 42m

$199

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

jeu. 3/12

5:30 am-12:20 pm

2 stops8h 50m

Spokane

mar. 3/17

1:55 pm-10:40 pm

1 stop6h 45m

$204

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

mar. 1/27

7:15 am-3:10 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

sam. 1/31

9:02 am-5:59 pm

1 stop7h 57m

$208

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

jeu. 3/12

6:15 am-9:55 am

1 stop5h 40m

Spokane

lun. 3/16

10:35 am-7:20 pm

1 stop6h 45m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/6

Showing 1-10 of 60 results
1
2
3
...
6

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.
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

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

Currently, September is the cheapest month in which you can book a flight from Austin to Idaho (average of $108). Flying from Austin to Idaho in July is currently the most expensive (average of $261). 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.

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 janvier 8, 2026.
Read through reviews of airlines operating flights from Austin to Idaho, such as Southwest, Delta, and United 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

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Comfort

8.0

Overall

8.0

Boarding

8.1

Food

7.0

Crew

8.6

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

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

    Located just 7.5 mi from the city center, Austin Bergstrom (AUS) is the airport most travelers will use when flying to Idaho from Austin.

  • How long is the flight from Austin to Idaho?

    For as low as $167, Frontier can have you in Idaho from Austin in 8h. The distance from Austin to Idaho is about 1373 mi. Both multi-stop and nonstop flights can be found to your destination and back.

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

    The cheapest airlines for a one-way flight from Austin to Idaho are Frontier ($82), Delta ($138), and Alaska Airlines ($139).

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

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Austin to Idaho 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 Austin to Idaho?

    Currently, September is the cheapest month in which you can book a flight from Austin to Idaho (average of $108). Flying from Austin to Idaho in July is currently the most expensive (average of $261). 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

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 for Austin to Idaho

See prices for flight routes from nearby airports that may be better suited for you.

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 janvier 8, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$222FlexibilityNo cancel feeOn-time62%
DeltaCheapest$145Average$397FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$232Average$352FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$406FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$493FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$260Average$365FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.