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Idaho

$65+ 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 12/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
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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 November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$130
(Frontier)

One-way from

$65
(Priceline)

Popular in

December

Cheapest in

January

Average price

$340
Provider with most accurate pricing for Austin Bergstrom-Boise Air Term. Gowen Fld flight deals.
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Provider most trusted by Cheapflights users for Austin Bergstrom-Boise Air Term. Gowen Fld flights.
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From Austin Bergstrom to Idaho
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One-way flight from Austin Bergstrom to Idaho
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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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 November 10, 2025.

This Frontier deal was found by Cheapflights users on 11/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:55 amAUS - BOI
1 stop5h 54mFrontier
Thu 12/1112:44 pmBOI - AUS
1 stop10h 30mFrontier
Deal found 11/10$130
This Frontier deal was found by Cheapflights users on 11/10. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/46:55 amAUS - BOI
1 stop5h 54mFrontier
Fri 12/512:44 pmBOI - AUS
1 stop10h 30mFrontier
Deal found 11/10$134
This Frontier deal was found by Cheapflights users on 11/8. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:55 amAUS - BOI
1 stop5h 54mFrontier
Fri 12/1212:44 pmBOI - AUS
1 stop10h 30mFrontier
Deal found 11/8$138
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com 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
Sun 12/1412:44 pmBOI - AUS
1 stop23h 29mFrontier
Deal found 11/9$172
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/76:55 amAUS - BOI
1 stop5h 54mMultiple Airlines
Sun 12/79:17 pmBOI - AUS
1 stop21h 43mMultiple Airlines
Deal found 11/8$199
This Kiwi.com deal was found by Cheapflights users on 11/8. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/41:39 pmAUS - BOI
2 stops27h 05mMultiple Airlines
Sun 12/712:44 pmBOI - AUS
1 stop10h 30mMultiple Airlines
Deal found 11/8$201
This Kiwi.com deal was found by Cheapflights users on 11/9. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:55 amAUS - BOI
1 stop5h 54mMultiple Airlines
Mon 12/1510:41 pmBOI - AUS
2 stops23h 31mMultiple Airlines
Deal found 11/9$207
This Expedia deal was found by Cheapflights users on 11/8. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/56:55 amAUS - BOI
1 stop5h 54mMultiple Airlines
Mon 12/86:03 amBOI - AUS
1 stop8h 17mMultiple Airlines
Deal found 11/8$211
This Kiwi.com deal was found by Cheapflights users on 11/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/116:55 amAUS - GEG
1 stop6h 18mFrontier
Sun 12/1412:08 pmGEG - AUS
1 stop23h 05mFrontier
Deal found 11/10$215
This Trip.com deal was found by Cheapflights users on 11/8. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/2410:46 amAUS - GEG
1 stop26h 39mFrontier
Fri 11/2812:20 pmGEG - AUS
1 stop21h 17mFrontier
Deal found 11/8$221
This Orbitz deal was found by Cheapflights users on 11/9. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/286:45 amAUS - GEG
1 stop6h 40mMultiple Airlines
Thu 12/187:32 pmGEG - AUS
1 stop7h 28mMultiple Airlines
Deal found 11/9$222
This Delta deal was found by Cheapflights users on 11/8. 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.
Sat 12/61:10 pmAUS - GEG
1 stop9h 47mDelta
Sat 12/133:35 pmGEG - AUS
1 stop6h 16mDelta
Deal found 11/8$245

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 November 10, 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

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Fri 1/9

6:45 am-11:59 am

1 stop6h 14m

Boise Air Term. Gowen Fld

Sun 1/11

12:54 pm-12:14 am

1 stop10h 20m

$146

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 12/11

6:55 am-11:13 am

1 stop6h 18m

Spokane

Sun 12/14

12:08 pm-1:13 pm

1 stop23h 05m

$215

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Mon 11/24

10:46 am-11:25 am

1 stop26h 39m

Spokane

Fri 11/28

12:20 pm-11:37 am

1 stop21h 17m

$221

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Sat 12/6

1:10 pm-8:57 pm

1 stop9h 47m

Spokane

Sat 12/13

3:35 pm-11:51 pm

1 stop6h 16m

$245

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 11/27

3:35 pm-11:25 am

1 stop21h 50m

Spokane

Tue 12/2

8:47 pm-6:26 pm

1 stop19h 39m

$246

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 12/12

7:26 pm-12:24 am

1 stop6h 58m

Spokane

Tue 12/16

1:33 pm-11:59 pm

1 stop8h 26m

$253

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 12/12

2:05 pm-10:49 pm

2 stops10h 44m

Spokane

Tue 12/16

7:10 am-5:50 pm

1 stop8h 40m

$261

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Tue 12/2

2:05 pm-10:49 pm

2 stops10h 44m

Spokane

Tue 12/9

3:35 pm-11:51 pm

1 stop6h 16m

$261

AustinHailey

AUS - SUN

AUSSUN

Austin Bergstrom

Tue 1/6

8:05 am-2:42 pm

1 stop7h 37m

Hailey Sun Valley-Friedman

Sat 1/10

7:25 am-1:45 pm

1 stop5h 20m

$263

AustinBoise

AUS - BOI

AUSBOI

Austin Bergstrom

Tue 1/13

7:15 am-3:10 pm

1 stop8h 55m

Boise Air Term. Gowen Fld

Sat 1/24

9:02 am-5:59 pm

1 stop7h 57m

$264

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

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 November 10, 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.

What is the cheapest day to fly from Austin to Idaho?

Use this chart to determine the cheapest time to fly round-trip from Austin to Idaho. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Austin to Idaho flight should consider departing on Saturday evenings when fares are most often at their lowest. Sunday evenings flights should be avoided if possible as fares are typically the most expensive at this time.

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 November 10, 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
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,007 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,012 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,045 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,113 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Boarding

8.1

Food

7.0

Entertainment

7.5

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 $146, Frontier can have you in Idaho from Austin in 6h 14m. 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 ($65), Alaska Airlines ($142), and United Airlines ($151).

  • 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 November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$126Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$212Average$366FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$339FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$575FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$470FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$396FlexibilityNo cancel feeOn-time63%

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