Idaho

$95+ 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
Mar 8 — Mar 151
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Cheap 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 February 6, 2026.

This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/56:45 am
AUS
-
GEG
1 stop6h 42m
Frontier
Thu 3/1211:32 am
GEG
-
AUS
1 stop8h 18m
Frontier
Deal found 2/3$195
This Delta deal was found by Cheapflights users on 2/4. 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.
Wed 5/134:07 pm
AUS
-
BOI
1 stop7h 47m
Delta
Sat 5/165:36 am
BOI
-
AUS
1 stop8h 14m
Delta
Deal found 2/4$197
This Delta deal was found by Cheapflights users on 2/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:00 am
AUS
-
GEG
1 stop8h 28m
Delta
Wed 5/135:05 am
GEG
-
AUS
1 stop6h 26m
Delta
Deal found 2/3$197
This Kiwi.com deal was found by Cheapflights users on 2/3. 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 3/56:45 am
AUS
-
GEG
1 stop6h 42m
Frontier
Sun 3/811:32 am
GEG
-
AUS
1 stop8h 31m
Frontier
Deal found 2/3$212
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/196:45 am
AUS
-
BOI
1 stop6h 06m
Multiple Airlines
Tue 2/248:30 am
BOI
-
AUS
1 stop8h 30m
Multiple Airlines
Deal found 2/3$214
This Expedia deal was found by Cheapflights users on 2/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/266:45 am
AUS
-
BOI
1 stop5h 35m
Multiple Airlines
Tue 3/314:15 pm
BOI
-
AUS
1 stop7h 19m
Multiple Airlines
Deal found 2/3$218
This Frontier deal was found by Cheapflights users on 2/5. 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 2/196:45 am
AUS
-
GEG
1 stop6h 42m
Frontier
Sun 2/228:12 pm
GEG
-
AUS
1 stop12h 25m
Frontier
Deal found 2/5$225
This Alaska Airlines deal was found by Cheapflights users on 2/4. 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.
Thu 2/263:35 pm
AUS
-
BOI
1 stop8h 05m
Alaska Airlines
Tue 3/36:00 pm
BOI
-
AUS
1 stop19h 35m
Alaska Airlines
Deal found 2/4$235
This United Airlines deal was found by Cheapflights users on 2/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/281:00 pm
AUS
-
BOI
1 stop5h 45m
United Airlines
Sat 3/75:00 am
BOI
-
AUS
2 stops9h 22m
United Airlines
Deal found 2/4$242
This Travelocity deal was found by Cheapflights users on 2/3. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/236:45 am
AUS
-
GEG
1 stop5h 46m
Frontier
Sun 4/2611:32 am
GEG
-
AUS
1 stop10h 49m
Frontier
Deal found 2/3$245
This Alaska Airlines deal was found by Cheapflights users on 2/3. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/93:39 pm
AUS
-
GEG
1 stop7h 52m
Alaska Airlines
Wed 5/1312:36 pm
GEG
-
AUS
2 stops8h 14m
Alaska Airlines
Deal found 2/3$250
This Travelocity deal was found by Cheapflights users on 2/4. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/125:49 pm
AUS
-
IDA
1 stop20h 17m
Alaska Airlines
Tue 5/194:08 pm
IDA
-
AUS
1 stop6h 31m
Alaska Airlines
Deal found 2/4$253

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 February 6, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$195
(Kiwi.com)

One-way from

$95
(Priceline)

Popular in

June

Cheapest in

January

Average price

$332
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 ($18 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 February 2026

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 February 6, 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

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 3/5

6:45 am-11:27 am

1 stop6h 42m

Spokane

Thu 3/12

11:32 am-9:50 pm

1 stop8h 18m

$195

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 3/25

7:30 pm-12:30 am

1 stop6h 00m

Boise Air Term. Gowen Fld

Tue 3/31

4:30 pm-11:10 pm

1 stop5h 40m

$197

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Sat 5/9

6:00 am-12:28 pm

1 stop8h 28m

Spokane

Wed 5/13

5:05 am-1:31 pm

1 stop6h 26m

$197

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 3/5

6:45 am-11:27 am

1 stop6h 42m

Spokane

Sun 3/8

11:32 am-10:03 pm

1 stop8h 31m

$212

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Thu 2/26

3:35 pm-10:40 pm

1 stop8h 05m

Boise Air Term. Gowen Fld

Tue 3/3

6:28 am-2:35 pm

1 stop7h 07m

$235

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 3/6

4:55 pm-11:45 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

Tue 3/10

6:00 am-1:44 pm

1 stop6h 44m

$235

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Sat 5/9

3:39 pm-9:31 pm

1 stop7h 52m

Spokane

Wed 5/13

12:36 pm-10:50 pm

2 stops8h 14m

$250

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Tue 5/12

5:49 pm-1:06 pm

1 stop20h 17m

Idaho Falls Fanning Field

Tue 5/19

4:08 pm-11:39 pm

1 stop6h 31m

$253

AustinHailey

AUS - SUN

AUSSUN

Austin Bergstrom

Thu 3/5

7:00 pm-11:10 am

1 stop17h 10m

Hailey Sun Valley-Friedman

Wed 3/11

11:52 am-11:59 pm

1 stop11h 07m

$254

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 4/3

2:10 pm-10:03 pm

1 stop8h 53m

Boise Air Term. Gowen Fld

Wed 4/8

5:00 am-11:25 am

1 stop5h 25m

$255

Flights are sorted by cheapest round-trip flights first.

Deals found on 2/4

Showing 1-10 of 60 results
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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 $263). 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 February 6, 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.

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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

Boarding

8.1

Overall

8.0

Comfort

8.0

Food

7.0

Entertainment

7.5

Crew

8.6

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 $197, Frontier can have you in Idaho from Austin in 6h. 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), Southwest ($116), 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 $263). 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

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Alternative routes for Austin to Idaho

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

Top 5 airlines flying from Austin to Idaho

Discover the top 5 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 February 6, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$78Average$220FlexibilityNo cancel feeOn-time62%
DeltaCheapest$139Average$413FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$232Average$353FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$237Average$482FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$367FlexibilityNo cancel feeOn-time63%

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