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Idaho

$69+ 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 1/19. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Jan 3 — Jan 101
Sat 1/3
Sat 1/10
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 4, 2025.

This Frontier deal was found by Cheapflights users on 12/2. 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.
Thu 12/186:45 amAUS - BOI
1 stop5h 58mFrontier
Sat 12/2012:54 pmBOI - AUS
1 stop10h 20mFrontier
Deal found 12/2$208
This Frontier deal was found by Cheapflights users on 12/2. 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.
Thu 12/116:55 amAUS - BOI
1 stop5h 54mFrontier
Fri 12/1212:44 pmBOI - AUS
1 stop10h 30mFrontier
Deal found 12/2$258
This Frontier deal was found by Cheapflights users on 12/2. 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 12/126:55 amAUS - BOI
1 stop5h 54mFrontier
Sun 12/1412:44 pmBOI - AUS
1 stop10h 30mFrontier
Deal found 12/2$262
This United Airlines deal was found by Cheapflights users on 12/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:20 amAUS - JAC
1 stop7h 44mUnited Airlines
Wed 1/73:27 pmJAC - AUS
1 stop7h 31mUnited Airlines
Deal found 12/2$273
This Expedia deal was found by Cheapflights users on 12/1. 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 12/1$275
This Delta deal was found by Cheapflights users on 12/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:20 amAUS - BOI
1 stop8h 25mDelta
Wed 1/77:25 amBOI - AUS
1 stop7h 35mDelta
Deal found 12/2$279
This American Airlines deal was found by Cheapflights users on 12/2. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/3112:08 pmAUS - BOI
1 stop6h 13mAmerican Airlines
Wed 1/712:37 pmBOI - AUS
1 stop6h 07mAmerican Airlines
Deal found 12/2$304
This Priceline deal was found by Cheapflights users on 12/2. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/1412:23 pmAUS - GEG
1 stop6h 39mFrontier
Sun 12/2112:02 pmGEG - AUS
1 stop10h 12mFrontier
Deal found 12/2$307
This Alaska Airlines deal was found by Cheapflights users on 12/2. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/315:46 pmAUS - BOI
1 stop7h 11mAlaska Airlines
Wed 1/77:00 amBOI - AUS
2 stops11h 19mAlaska Airlines
Deal found 12/2$325
This United Airlines deal was found by Cheapflights users on 12/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/206:00 amAUS - JAC
1 stop10h 18mUnited Airlines
Wed 12/241:00 pmJAC - AUS
1 stop5h 55mUnited Airlines
Deal found 12/3$328
This Frontier deal was found by Cheapflights users on 12/2. 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.
Sat 12/206:45 amAUS - BOI
1 stop6h 14mFrontier
Thu 12/2512:38 pmBOI - AUS
1 stop10h 36mFrontier
Deal found 12/2$337
This Kiwi.com deal was found by Cheapflights users on 12/3. 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 12/1110:22 pmAUS - BOI
1 stop18h 22mMultiple Airlines
Fri 12/1210:41 pmBOI - AUS
2 stops24h 33mMultiple Airlines
Deal found 12/3$338

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 4, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$142
(Kiwi.com)

One-way from

$69
(WAYA)

Popular in

December

Cheapest in

January

Average price

$434
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. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($9 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 4, 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

Wed 2/11

2:15 pm-6:49 pm

1 stop6h 34m

Spokane

Wed 2/18

3:10 pm-11:58 pm

1 stop6h 48m

$159

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Tue 1/20

12:47 pm-6:49 pm

1 stop8h 02m

Spokane

Tue 2/3

6:00 am-1:43 pm

1 stop5h 43m

$159

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Thu 2/26

7:55 pm-11:30 pm

1 stop28h 35m

Boise Air Term. Gowen Fld

Tue 3/3

7:00 am-7:15 pm

1 stop11h 15m

$185

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Thu 2/26

4:55 pm-11:45 pm

1 stop7h 50m

Boise Air Term. Gowen Fld

Tue 3/3

7:30 am-4:00 pm

1 stop7h 30m

$195

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 1/8

6:15 am-1:03 pm

1 stop8h 48m

Spokane

Mon 1/12

7:00 am-5:35 pm

1 stop8h 35m

$195

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 1/8

6:59 pm-12:23 am

1 stop7h 24m

Spokane

Mon 1/12

7:30 am-3:54 pm

1 stop6h 24m

$195

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 1/22

12:47 pm-6:49 pm

1 stop8h 02m

Spokane

Sat 1/24

6:33 am-4:41 pm

1 stop8h 08m

$195

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 1/9

2:15 pm-6:49 pm

1 stop6h 34m

Spokane

Wed 1/21

6:00 am-1:43 pm

1 stop5h 43m

$198

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Wed 1/21

5:39 pm-10:52 pm

1 stop7h 13m

Spokane

Sat 1/24

12:32 pm-10:48 pm

2 stops8h 16m

$210

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Wed 2/11

1:30 pm-11:04 pm

2 stops11h 34m

Spokane

Wed 2/18

1:23 pm-11:59 pm

1 stop8h 36m

$210

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 53 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 4, 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 4, 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
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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
Southwest
8.0
Very good
4,250 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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
Delta
7.9
Good
8,011 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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
United Airlines
7.4
Good
9,066 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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
American Airlines
7.2
Good
11,047 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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
Frontier
5.8
Fair
3,091 reviews
Southwest
8.0
Very good
4,250 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Crew

8.6

Comfort

8.0

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 $159, American Airlines can have you in Idaho from Austin in 6h 34m. 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

See prices for flight routes from nearby airports that may be better suited for you.
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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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$100Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$175Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$341FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$575FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$484FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$376FlexibilityNo cancel feeOn-time63%

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