HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Austin

$71+ Cheap flights from Idaho to Austin (AUS)

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 12/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Dec 13 — Dec 201
Sat 12/13
Sat 12/20
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Idaho to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Find flight deals from Idaho to Austin

Cheapest flights from Idaho to Austin
Explore the most affordable flight options available from Idaho to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 13, 2025.

This Expedia deal was found by Cheapflights users on 11/11. 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.
Thu 12/1112:44 pmBOI - AUS
1 stop10h 30mFrontier
Sun 12/146:55 amAUS - BOI
1 stop5h 54mFrontier
Deal found 11/11$134
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Fri 11/2112:48 pmBOI - AUS
1 stop9h 27mFrontier
Mon 11/2410:46 amAUS - BOI
1 stop10h 13mFrontier
Deal found 11/12$153
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2112:48 pmBOI - AUS
1 stop9h 27mFrontier
Sat 11/2212:32 pmAUS - BOI
1 stop24h 16mFrontier
Deal found 11/11$179
This Expedia deal was found by Cheapflights users on 11/11. 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.
Wed 12/31:33 pmGEG - AUS
1 stop8h 26mMultiple Airlines
Sun 12/712:23 pmAUS - GEG
1 stop6h 39mMultiple Airlines
Deal found 11/11$182
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Tue 11/2512:17 pmGEG - AUS
1 stop8h 58mFrontier
Wed 11/2610:06 pmAUS - GEG
2 stops39h 19mFrontier
Deal found 11/12$186
This Kiwi.com deal was found by Cheapflights users on 11/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/2112:48 pmBOI - AUS
1 stop21h 49mFrontier
Sun 11/2310:06 pmAUS - BOI
2 stops22h 53mFrontier
Deal found 11/11$190
This Frontier deal was found by Cheapflights users on 11/13. 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.
Sun 12/2112:02 pmGEG - AUS
1 stop10h 12mFrontier
Tue 12/3011:33 amAUS - GEG
1 stop6h 20mFrontier
Deal found 11/13$195
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 12/125:20 amBOI - AUS
1 stop7h 12mDelta
Mon 12/1512:06 pmAUS - BOI
1 stop9h 14mDelta
Deal found 11/11$197
This Frontier deal was found by Cheapflights users on 11/13. 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.
Sun 12/2112:02 pmGEG - AUS
1 stop10h 12mFrontier
Sun 1/46:45 amAUS - GEG
1 stop6h 22mFrontier
Deal found 11/13$198
This Alaska Airlines deal was found by Cheapflights users on 11/12. 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.
Tue 12/91:33 pmGEG - AUS
1 stop8h 26mAlaska Airlines
Mon 12/156:00 amAUS - GEG
1 stop19h 59mAlaska Airlines
Deal found 11/12$216
This Delta deal was found by Cheapflights users on 11/11. 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.
Fri 12/125:05 amGEG - AUS
1 stop6h 27mDelta
Sat 1/104:55 pmAUS - GEG
1 stop7h 57mDelta
Deal found 11/11$217
This Frontier deal was found by Cheapflights users on 11/13. 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 11/2212:06 pmGEG - AUS
1 stop9h 09mFrontier
Thu 12/46:55 amAUS - GEG
1 stop6h 18mFrontier
Deal found 11/13$221

Cheap flight deals from Idaho to Austin

Keep the following information in mind while searching for Idaho to Austin flight deals. Data was last updated November 13, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$134
(Expedia)

One-way from

$71
(Trip.com)

Popular in

December

Cheapest in

September

Average price

$442
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Austin Bergstrom flights.
Search Deals
From Idaho to Austin Bergstrom
Search Deals
One-way flight from Idaho to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($20 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho to Austin 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 13, 2025.
Use the filters below to find and compare flights from Idaho to Austin that are best for you.

Fly from

Idaho

Fly to

Austin

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 1/15

12:54 pm-12:28 am

1 stop10h 34m

Austin Bergstrom

Sun 1/18

12:02 pm-11:54 am

2 stops24h 52m

$171

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 1/23

1:55 pm-11:59 pm

1 stop9h 04m

Austin Bergstrom

Sun 1/25

6:45 am-11:59 am

1 stop6h 14m

$172

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 12/11

12:44 pm-10:15 am

2 stops20h 31m

Austin Bergstrom

Sun 12/14

6:55 am-11:49 am

1 stop5h 54m

$194

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 12/12

5:20 am-1:32 pm

1 stop7h 12m

Austin Bergstrom

Mon 12/15

12:06 pm-8:20 pm

1 stop9h 14m

$197

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 3/9

5:40 am-1:32 pm

1 stop6h 52m

Austin Bergstrom

Tue 3/10

11:50 am-8:13 pm

1 stop9h 23m

$197

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 12/9

1:33 pm-11:59 pm

1 stop8h 26m

Austin Bergstrom

Mon 12/15

6:00 am-11:59 pm

1 stop19h 59m

$216

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 1/29

9:05 am-5:59 pm

1 stop6h 54m

Austin Bergstrom

Mon 2/2

7:15 am-12:44 pm

1 stop7h 29m

$216

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Mon 2/9

7:28 pm-4:39 pm

1 stop19h 11m

Austin Bergstrom

Sat 2/14

7:15 am-12:29 pm

1 stop7h 14m

$216

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sun 1/18

5:05 am-4:00 pm

1 stop8h 55m

Austin Bergstrom

Wed 1/21

4:55 pm-11:59 pm

1 stop9h 04m

$217

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sun 1/18

6:05 am-4:00 pm

1 stop7h 55m

Austin Bergstrom

Tue 1/20

4:55 pm-11:59 pm

1 stop9h 04m

$217

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/12

Showing 1-10 of 60 results
1
2
3
...
6

Best time to book a flight from Idaho to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Idaho 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 Idaho to Austin

What is the cheapest month to book a flight from Idaho to Austin?

Currently, March is the cheapest month in which you can book a flight from Idaho to Austin (average of $119). Flying from Idaho to Austin in November is currently the most expensive (average of $248). 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 ID to AUS?

Find hourly flight availability from Idaho to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 13, 2025.

It’s typically best to fly out from Idaho to Austin in the evening. Doing so could potentially save you 17% on the flight price compared to flying in the afternoon, which is usually more expensive.

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

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

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

Related info for your journey

Find useful and relevant information for your journey from Idaho to Austin. 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 into for flights to Austin from Idaho?

    Austin Bergstrom (AUS), located 7.5 mi from the city center, is the airport you fly into when you book flights from Idaho to Austin.

  • How long is the flight from Idaho to Austin?

    There are many flights that can get you from Idaho to Austin in 7h 12m. Fly via Frontier, Delta, or Alaska Airlines to get the fastest option. The distance between Idaho and Austin 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 Idaho to Austin one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $71. However, be on the lookout for offers from Alaska Airlines and Delta, as they are both options that can get you from Idaho to Austin for a low price.

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

    The most popular route from Idaho to Austin is Boise Air Term. Gowen Fld - Austin Bergstrom. You may also consider Spokane - Austin Bergstrom or Idaho Falls Fanning Field - Austin Bergstrom.

  • Can I find deals for flights from Idaho to Austin that include hotel bookings?

    Yes. In addition to deals on Idaho to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Idaho to Austin?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Idaho to Austin.

  • Can I find deals for business class flights from Idaho to Austin?

    Yes. Cheapflights offers flight deals from Idaho to Austin 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 Idaho to Austin?

    Currently, March is the cheapest month in which you can book a flight from Idaho to Austin (average of $119). Flying from Idaho to Austin in November is currently the most expensive (average of $248). 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

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Cedar Park
Round Rock
San Marcos
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Idaho to Austin

See prices for flight routes from nearby airports that may be better suited for you.
John F Kennedy Intl to Dallas/Fort Worth flights
LaGuardia to Dallas/Fort Worth flights
Newark to Dallas/Fort Worth flights
Seattle to Dallas/Fort Worth flights
Los Angeles to Dallas/Fort Worth flights
LaGuardia to Hobby flights
Newark to Hobby flights
John F Kennedy Intl to Hobby flights
Dulles Intl to Dallas/Fort Worth flights
O'Hare Intl to Dallas/Fort Worth flights
San Francisco to Dallas/Fort Worth flights
John F Kennedy Intl to Austin flights
Newark to George Bush Intcntl flights
Baltimore to Dallas/Fort Worth flights
Minneapolis to Dallas/Fort Worth flights
John F Kennedy Intl to George Bush Intcntl flights
Boston to Dallas/Fort Worth flights
LaGuardia to George Bush Intcntl flights
Newark to Austin flights
Santa Ana to Dallas/Fort Worth flights
Atlanta to Dallas/Fort Worth flights
Philadelphia to Dallas/Fort Worth flights
Reagan-National to Dallas/Fort Worth flights
Los Angeles to Hobby flights
Detroit to Dallas/Fort Worth flights
Wichita to Hobby flights
Dulles Intl to Hobby flights
Wichita to George Bush Intcntl flights
Denver to Dallas/Fort Worth flights
Seattle to Hobby flights
Reagan-National to Hobby flights
Orlando to Dallas/Fort Worth flights
Salt Lake City to Dallas/Fort Worth flights
Ontario to Dallas/Fort Worth flights
Los Angeles to George Bush Intcntl flights
Baltimore to Hobby flights
Midway to Dallas/Fort Worth flights
Sky Harbor Intl to Dallas/Fort Worth flights
O'Hare Intl to George Bush Intcntl flights
Dulles Intl to George Bush Intcntl flights
Seattle to George Bush Intcntl flights
Burbank to Dallas/Fort Worth flights
Los Angeles to Austin flights
Denver to Hobby flights
LaGuardia to Austin flights
Raleigh to Dallas/Fort Worth flights
O'Hare Intl to Hobby flights
San Francisco to Hobby flights
Ontario to Hobby flights
LaGuardia to Love Field flights

Top 6 airlines flying from Idaho to Austin

Discover the top 6 airlines that operate flights from Idaho to Austin. 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 13, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$189Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$204Average$397FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$512FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$268Average$463FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$275Average$363FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$276Average$543FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.