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Idaho

$54+ 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 10/23. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — BOI
Nov 9 — Nov 161
Sun 11/9
Sun 11/16
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 October 10, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$119
(Booking.com)

One-way from

$54
(Frontier)

Popular in

December

Cheapest in

January

Average price

$325
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
Search Deals
Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($16 potential savings vs. average RT price).
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Average for round-trip flights in October 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 October 10, 2025.

This Booking.com deal was found by Cheapflights users on 10/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:00 amAUS - GEG
1 stop7h 08mFrontier
Thu 11/1312:03 pmGEG - AUS
1 stop19h 39mFrontier
Deal found 10/9$119
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Wed 12/178:00 amAUS - BOI
1 stop29h 04mMultiple Airlines
Mon 1/59:46 pmBOI - AUS
1 stop16h 15mMultiple Airlines
Deal found 10/8$199
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 11/66:00 amAUS - GEG
1 stop7h 08mMultiple Airlines
Thu 11/139:16 pmGEG - AUS
1 stop14h 07mMultiple Airlines
Deal found 10/9$211
This Booking.com deal was found by Cheapflights users on 10/9. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/96:00 amAUS - BOI
1 stop6h 48mFrontier
Thu 11/1312:33 pmBOI - AUS
1 stop20h 09mFrontier
Deal found 10/9$224
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:18 pmAUS - GEG
1 stop7h 04mAlaska Airlines
Fri 11/148:59 pmGEG - AUS
1 stop25h 15mAlaska Airlines
Deal found 10/8$245
This KAYAK deal was found by Cheapflights users on 10/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/87:00 amAUS - BOI
1 stop9h 12mAlaska Airlines
Thu 11/136:28 amBOI - AUS
1 stop7h 46mAlaska Airlines
Deal found 10/9$246
This KAYAK deal was found by Cheapflights users on 10/9. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/77:00 amAUS - BOI
1 stop9h 12mAlaska Airlines
Mon 11/102:20 pmBOI - AUS
1 stop8h 54mAlaska Airlines
Deal found 10/9$247
This Delta deal was found by Cheapflights users on 10/9. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/126:05 amAUS - GEG
1 stop6h 34mDelta
Sun 12/143:35 pmGEG - AUS
1 stop6h 16mDelta
Deal found 10/9$247
This Alaska Airlines deal was found by Cheapflights users on 10/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/247:35 pmAUS - GEG
1 stop6h 43mAlaska Airlines
Tue 12/25:04 pmGEG - AUS
1 stop23h 22mAlaska Airlines
Deal found 10/9$254
This Delta deal was found by Cheapflights users on 10/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/246:05 pmAUS - GEG
1 stop6h 45mDelta
Wed 12/39:25 amGEG - AUS
1 stop6h 26mDelta
Deal found 10/7$255
This Frontier deal was found by Cheapflights users on 10/9. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/136:00 amAUS - BOI
1 stop6h 43mFrontier
Sun 11/1612:28 pmBOI - AUS
1 stop11h 04mFrontier
Deal found 10/9$261
This Alaska Airlines deal was found by Cheapflights users on 10/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/141:36 pmAUS - BOI
1 stop9h 44mAlaska Airlines
Mon 11/178:50 pmBOI - AUS
1 stop20h 28mAlaska Airlines
Deal found 10/8$265

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 October 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

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 11/6

6:00 am-11:08 am

1 stop7h 08m

Spokane

Thu 11/13

12:03 pm-9:42 am

1 stop19h 39m

$119

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 11/6

6:00 am-11:08 am

1 stop7h 08m

Spokane

Thu 11/13

9:16 pm-1:23 pm

1 stop14h 07m

$211

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 11/7

7:18 pm-12:22 am

1 stop7h 04m

Spokane

Fri 11/14

8:59 pm-12:14 am

1 stop25h 15m

$245

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 11/14

7:00 am-12:26 pm

1 stop7h 26m

Spokane

Mon 11/17

7:39 pm-3:14 pm

1 stop17h 35m

$245

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 11/14

2:05 pm-12:10 am

2 stops12h 05m

Spokane

Mon 11/17

3:33 pm-11:57 pm

1 stop6h 24m

$252

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 12/12

6:05 am-10:39 am

1 stop6h 34m

Spokane

Sun 12/14

9:25 am-9:33 pm

2 stops10h 08m

$252

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Mon 11/24

7:35 pm-12:18 am

1 stop6h 43m

Spokane

Tue 12/2

5:04 pm-6:26 pm

1 stop23h 22m

$254

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Mon 11/24

6:05 pm-10:50 pm

1 stop6h 45m

Spokane

Wed 12/3

9:25 am-5:51 pm

1 stop6h 26m

$255

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Thu 11/6

8:10 am-4:44 pm

2 stops10h 34m

Spokane

Thu 11/13

7:05 am-9:29 pm

2 stops12h 24m

$258

AustinSpokane

AUS - GEG

AUSGEG

Austin Bergstrom

Fri 11/7

12:25 pm-9:05 pm

2 stops10h 40m

Spokane

Fri 11/14

11:19 am-12:41 am

2 stops11h 22m

$258

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/9

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 December is currently the most expensive (average of $301). 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 October 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 October 10, 2025.
Read through reviews of airlines operating flights from Austin to Idaho, such as Alaska Airlines, Southwest, and Delta. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,052 reviews
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,235 reviews
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,974 reviews
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,972 reviews
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,047 reviews
Alaska Airlines
8.0
Very good
11,052 reviews

Boarding

8.1

Crew

8.5

Entertainment

7.0

Comfort

7.8

Food

7.1

Overall

8.0

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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 $245, Frontier can have you in Idaho from Austin in 7h 04m. 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 ($54), Alaska Airlines ($131), and Delta ($142).

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

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

  • 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 December is currently the most expensive (average of $301). 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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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 October 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$126Average$270FlexibilityNo cancel feeOn-time62%
DeltaCheapest$212Average$385FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$242Average$350FlexibilityNo cancel feeOn-time71%
Alaska AirlinesCheapest$244Average$575FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$254Average$483FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$261Average$397FlexibilityNo cancel feeOn-time63%

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