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Idaho

$74+ 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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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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 December 12, 2025.

This Southwest deal was found by Cheapflights users on 12/11. 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 12/2410:55 amAUS - BOI
1 stop5h 10mSouthwest
Wed 12/312:30 pmBOI - AUS
1 stop7h 45mSouthwest
Deal found 12/11$371
This United Airlines deal was found by Cheapflights users on 12/10. 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 12/242:55 pmAUS - IDA
1 stop7h 19mUnited Airlines
Wed 12/315:00 amIDA - AUS
1 stop5h 03mUnited Airlines
Deal found 12/10$411
This Alaska Airlines deal was found by Cheapflights users on 12/10. 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 12/247:42 pmAUS - GEG
1 stop6h 50mAlaska Airlines
Wed 12/317:00 amGEG - AUS
1 stop21h 40mAlaska Airlines
Deal found 12/10$445
This Delta deal was found by Cheapflights users on 12/10. 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.
Sun 12/148:04 amAUS - JAC
1 stop4h 56mDelta
Sat 12/202:55 pmJAC - AUS
1 stop6h 16mDelta
Deal found 12/10$454
This Southwest deal was found by Cheapflights users on 12/11. 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 12/316:30 pmAUS - BOI
1 stop5h 40mSouthwest
Sat 1/38:40 pmBOI - AUS
1 stop11h 50mSouthwest
Deal found 12/11$469
This Southwest deal was found by Cheapflights users on 12/11. 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 12/2410:55 amAUS - BOI
1 stop5h 10mSouthwest
Tue 12/305:35 amBOI - AUS
1 stop6h 15mSouthwest
Deal found 12/11$477
This Alaska Airlines deal was found by Cheapflights users on 12/11. 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 12/251:33 pmAUS - GEG
1 stop11h 37mAlaska Airlines
Fri 1/22:53 pmGEG - AUS
2 stops12h 07mAlaska Airlines
Deal found 12/11$481
This American Airlines deal was found by Cheapflights users on 12/9. 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.
Fri 12/263:29 pmAUS - GEG
1 stop7h 09mAmerican Airlines
Thu 1/111:59 pmGEG - AUS
1 stop7h 16mAmerican Airlines
Deal found 12/9$485
This United Airlines deal was found by Cheapflights users on 12/10. 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.
Thu 12/255:15 amAUS - BOI
1 stop5h 46mUnited Airlines
Mon 12/296:55 pmBOI - AUS
2 stops12h 35mUnited Airlines
Deal found 12/10$486
This Expedia deal was found by Cheapflights users on 12/11. 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 12/164:20 pmAUS - BOI
1 stop6h 38mMultiple Airlines
Thu 12/1812:38 pmBOI - AUS
1 stop10h 36mMultiple Airlines
Deal found 12/11$491
This Southwest deal was found by Cheapflights users on 12/10. 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 12/296:40 pmAUS - BOI
1 stop7h 45mSouthwest
Sun 1/45:35 amBOI - AUS
1 stop6h 15mSouthwest
Deal found 12/10$503
This Delta deal was found by Cheapflights users on 12/11. 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 12/255:20 amAUS - JAC
2 stops12h 39mDelta
Mon 12/2912:50 pmJAC - AUS
1 stop7h 43mDelta
Deal found 12/11$503

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 December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$166
(Frontier)

One-way from

$74
(Frontier)

Popular in

December

Cheapest in

January

Average price

$489
Provider with most accurate pricing for Austin Bergstrom-Boise Air Term. Gowen Fld flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Boise Air Term. Gowen Fld flights.
Search Deals
From Austin Bergstrom to Idaho
Search Deals
One-way flight from Austin Bergstrom to Idaho
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($23 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($14 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 12, 2025.
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 1/15

6:45 am-10:37 am

1 stop5h 52m

Spokane

Thu 1/22

12:03 pm-12:16 am

1 stop10h 13m

$166

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 1/30

7:15 am-3:10 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Mon 2/2

12:07 pm-12:16 am

1 stop11h 09m

$183

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Thu 2/19

6:45 am-11:59 am

1 stop6h 14m

Boise Air Term. Gowen Fld

Sun 2/22

12:54 pm-12:14 am

1 stop10h 20m

$210

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Mon 1/5

3:29 pm-10:05 pm

1 stop7h 36m

Boise Air Term. Gowen Fld

Thu 1/15

2:48 pm-11:08 pm

1 stop7h 20m

$217

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Wed 1/14

12:48 pm-8:55 pm

1 stop9h 07m

Boise Air Term. Gowen Fld

Sun 1/18

5:40 am-4:00 pm

1 stop9h 20m

$217

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 1/9

1:59 pm-10:18 pm

1 stop9h 19m

Boise Air Term. Gowen Fld

Sun 1/11

5:40 am-4:00 pm

1 stop9h 20m

$217

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 1/9

6:00 am-12:07 pm

1 stop7h 07m

Boise Air Term. Gowen Fld

Sun 1/11

1:58 pm-8:02 pm

1 stop5h 04m

$217

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 1/9

4:51 pm-9:52 pm

1 stop6h 01m

Boise Air Term. Gowen Fld

Mon 1/12

2:37 pm-10:59 pm

2 stops7h 22m

$222

AustinJackson

AUS - JAC

AUSJAC

Austin Bergstrom

Sun 2/8

10:50 am-3:18 pm

1 stop5h 28m

Jackson Hole

Thu 2/12

4:27 pm-11:59 pm

1 stop6h 32m

$231

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Mon 1/5

5:46 pm-11:00 pm

1 stop7h 14m

Spokane

Fri 1/9

3:43 pm-11:59 pm

1 stop6h 16m

$236

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/10

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 $260). 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 AUS to ID?

Find hourly flight availability from Austin to Idaho. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

A simple way to save on the total cost of your ticket is to fly from Austin to Idaho at noon. If you’re flexible enough to do this you can expect to save up to 30% on your trip compared to booking a flight in the evening.

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 December 12, 2025.
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.
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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
Southwest
7.9
Good
4,253 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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
American Airlines
7.2
Good
11,050 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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
Frontier
5.8
Fair
3,084 reviews
Southwest
7.9
Good
4,253 reviews

Comfort

8.0

Crew

8.6

Overall

7.9

Entertainment

7.5

Food

7.0

Boarding

8.1

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 $166, Frontier can have you in Idaho from Austin in 5h 52m. The distance from Austin to Idaho 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 Austin to Idaho one-way?

    The cheapest airlines for a one-way flight from Austin to Idaho are Frontier ($82), American Airlines ($141), and Southwest ($143).

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

    The most popular flight routes from Austin to Idaho are Austin Bergstrom - Jackson Hole, Austin Bergstrom - Spokane and Austin Bergstrom - Boise Air Term. Gowen Fld.

  • 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 $260). 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

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Alternative routes for Austin to Idaho

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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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$175Average$365FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$339FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$575FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$484FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$372FlexibilityNo cancel feeOn-time63%

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