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$98+ 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 1/1. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Dec 26 — Jan 21
Fri 12/26
Fri 1/2
1 adult, Economy
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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 26, 2025.

This Expedia deal was found by Cheapflights users on 11/24. 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 12/2512:38 pmBOI - AUS
1 stop10h 36mFrontier
Thu 1/16:45 amAUS - BOI
1 stop5h 58mFrontier
Deal found 11/24$208
This Frontier deal was found by Cheapflights users on 11/24. 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 12/412:44 pmBOI - AUS
1 stop10h 30mFrontier
Sun 12/76:55 amAUS - BOI
1 stop5h 54mFrontier
Deal found 11/24$228
This Priceline deal was found by Cheapflights users on 11/24. 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.
Thu 12/412:08 pmGEG - AUS
1 stop10h 06mFrontier
Sun 12/76:55 amAUS - GEG
1 stop6h 18mFrontier
Deal found 11/24$228
This Priceline deal was found by Cheapflights users on 11/25. 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.
Tue 12/2312:02 pmGEG - AUS
1 stop10h 12mFrontier
Tue 12/3011:33 amAUS - GEG
1 stop6h 20mFrontier
Deal found 11/25$257
This Delta deal was found by Cheapflights users on 11/25. 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 12/202:31 pmJAC - AUS
1 stop9h 06mDelta
Wed 12/315:20 amAUS - JAC
1 stop9h 01mDelta
Deal found 11/25$257
This Expedia deal was found by Cheapflights users on 11/25. 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 12/106:03 amBOI - AUS
1 stop8h 17mMultiple Airlines
Sun 12/146:55 amAUS - BOI
1 stop5h 54mMultiple Airlines
Deal found 11/25$264
This Expedia deal was found by Cheapflights users on 11/25. 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 12/512:44 pmBOI - AUS
1 stop10h 30mMultiple Airlines
Wed 12/107:15 amAUS - BOI
1 stop9h 11mMultiple Airlines
Deal found 11/25$270
This Expedia deal was found by Cheapflights users on 11/25. 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 12/107:15 amGEG - AUS
1 stop9h 11mMultiple Airlines
Sun 12/1412:23 pmAUS - GEG
1 stop6h 39mMultiple Airlines
Deal found 11/25$274
This Expedia deal was found by Cheapflights users on 11/25. 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 12/412:08 pmGEG - AUS
1 stop10h 06mMultiple Airlines
Tue 12/97:26 pmAUS - GEG
1 stop6h 58mMultiple Airlines
Deal found 11/25$276
This Delta deal was found by Cheapflights users on 11/25. 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 12/221:55 pmJAC - AUS
1 stop8h 07mDelta
Wed 12/316:25 amAUS - JAC
1 stop7h 56mDelta
Deal found 11/25$278
This United Airlines deal was found by Cheapflights users on 11/25. 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 12/1010:54 amJAC - AUS
1 stop4h 53mUnited Airlines
Sun 12/146:00 amAUS - JAC
1 stop7h 47mUnited Airlines
Deal found 11/25$281
This Expedia deal was found by Cheapflights users on 11/24. 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 12/252:39 pmBOI - AUS
2 stops13h 21mMultiple Airlines
Thu 1/16:45 amAUS - BOI
1 stop5h 58mMultiple Airlines
Deal found 11/24$284

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 26, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$136
(Kiwi.com)

One-way from

$98
(Expedia)

Popular in

March

Cheapest in

September

Average price

$435
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. 2% potential increase in price ($10 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 26, 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

2:19 pm-12:28 am

1 stop9h 09m

Austin Bergstrom

Sun 1/18

12:02 pm-1:25 pm

2 stops26h 23m

$171

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 12/25

12:38 pm-12:14 am

1 stop10h 36m

Austin Bergstrom

Thu 1/1

6:45 am-11:43 am

1 stop5h 58m

$208

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 1/15

7:16 pm-10:12 am

1 stop12h 56m

Austin Bergstrom

Sun 1/18

12:02 pm-6:21 pm

1 stop8h 19m

$217

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 12/4

12:44 pm-12:14 am

1 stop10h 30m

Austin Bergstrom

Sun 12/7

6:55 am-11:49 am

1 stop5h 54m

$228

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 1/8

1:34 pm-8:53 am

1 stop18h 19m

Austin Bergstrom

Sun 1/11

8:13 pm-2:19 pm

1 stop19h 06m

$234

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sun 1/11

1:19 pm-12:16 am

1 stop8h 57m

Austin Bergstrom

Thu 1/15

6:45 am-10:37 am

1 stop5h 52m

$238

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Sat 2/14

3:25 pm-11:59 pm

1 stop7h 34m

Austin Bergstrom

Tue 2/17

7:30 am-2:16 pm

1 stop7h 46m

$244

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Thu 12/25

2:31 pm-12:37 am

1 stop9h 06m

Austin Bergstrom

Wed 12/31

6:25 am-1:21 pm

1 stop7h 56m

$257

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Sat 2/14

1:05 pm-9:34 pm

1 stop7h 29m

Austin Bergstrom

Wed 2/18

7:20 am-2:55 pm

1 stop8h 35m

$257

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 12/23

12:02 pm-12:14 am

1 stop10h 12m

Austin Bergstrom

Tue 12/30

11:33 am-3:53 pm

1 stop6h 20m

$257

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/24

Showing 1-10 of 54 results
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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 August is currently the most expensive (average of $244). 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 26, 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 34m. Fly via Frontier, United Airlines, or Delta to get the fastest option. The distance between Idaho and Austin is about 1171 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 United Airlines, with whom users have recently found tickets for as low as $132. However, be on the lookout for offers from American 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 August is currently the most expensive (average of $244). 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

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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 26, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$240FlexibilityNo cancel feeOn-time62%
DeltaCheapest$232Average$395FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$512FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$268Average$468FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$354FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$463FlexibilityNo cancel feeOn-time69%

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