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$86+ 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 10/30. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Nov 15 — Nov 221
Sat 11/15
Sat 11/22
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 October 16, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/15. 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 12/1212:44 pmBOI - AUS
1 stop10h 30mFrontier
Sun 12/146:55 amAUS - BOI
1 stop5h 54mFrontier
Deal found 10/15$190
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 11/149:31 pmBOI - AUS
2 stops16h 53mMultiple Airlines
Sun 11/166:00 amAUS - BOI
1 stop6h 43mMultiple Airlines
Deal found 10/15$207
This Priceline deal was found by Cheapflights users on 10/16. 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 10/3012:03 pmGEG - AUS
1 stop10h 29mFrontier
Thu 11/66:00 amAUS - GEG
1 stop7h 08mFrontier
Deal found 10/16$210
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/139:16 pmGEG - AUS
1 stop14h 07mMultiple Airlines
Sun 11/166:00 amAUS - GEG
1 stop7h 08mMultiple Airlines
Deal found 10/16$221
This Alaska Airlines deal was found by Cheapflights users on 10/16. 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 11/191:20 pmGEG - AUS
1 stop8h 54mAlaska Airlines
Tue 12/91:33 pmAUS - GEG
1 stop8h 32mAlaska Airlines
Deal found 10/16$244
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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.
Thu 11/137:35 amGEG - AUS
1 stop8h 43mAlaska Airlines
Mon 11/177:00 amAUS - GEG
1 stop19h 22mAlaska Airlines
Deal found 10/15$246
This Kiwi.com deal was found by Cheapflights users on 10/16. 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 11/1312:03 pmGEG - AUS
2 stops23h 20mFrontier
Sun 11/166:00 amAUS - GEG
1 stop7h 08mFrontier
Deal found 10/16$250
This Expedia deal was found by Cheapflights users on 10/15. 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 11/1312:03 pmGEG - AUS
1 stop10h 40mMultiple Airlines
Mon 11/177:15 amAUS - GEG
2 stops17h 44mMultiple Airlines
Deal found 10/15$254
This Kiwi.com deal was found by Cheapflights users on 10/15. 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 12/1210:41 pmBOI - AUS
2 stops24h 33mMultiple Airlines
Sun 12/146:55 amAUS - BOI
1 stop5h 54mMultiple Airlines
Deal found 10/15$264
This Trip.com deal was found by Cheapflights users on 10/15. 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 11/175:00 amGEG - AUS
2 stops11h 29mMultiple Airlines
Tue 11/187:15 amAUS - GEG
1 stop6h 24mMultiple Airlines
Deal found 10/15$264
This Alaska Airlines deal was found by Cheapflights users on 10/15. 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 11/58:50 amBOI - AUS
1 stop14h 24mAlaska Airlines
Fri 11/77:18 pmAUS - BOI
1 stop20h 54mAlaska Airlines
Deal found 10/15$265
This Delta deal was found by Cheapflights users on 10/15. 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 12/123:35 pmGEG - AUS
1 stop6h 16mDelta
Sat 1/1012:05 pmAUS - GEG
1 stop8h 41mDelta
Deal found 10/15$265

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 October 16, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$190
(Kiwi.com)

One-way from

$86
(Frontier)

Popular in

March

Cheapest in

September

Average price

$357
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. 1% potential increase in price ($6 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 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 October 16, 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

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 10/30

12:03 pm-12:32 am

1 stop10h 29m

Austin Bergstrom

Thu 11/6

6:00 am-11:08 am

1 stop7h 08m

$210

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 11/13

12:03 pm-1:23 pm

2 stops23h 20m

Austin Bergstrom

Sun 11/16

6:00 am-11:08 am

1 stop7h 08m

$250

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Mon 11/17

5:00 am-6:29 pm

2 stops11h 29m

Austin Bergstrom

Tue 11/18

7:15 am-11:39 am

1 stop6h 24m

$264

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 11/5

6:28 am-12:14 am

1 stop16h 46m

Austin Bergstrom

Fri 11/7

7:18 pm-6:02 pm

1 stop23h 44m

$265

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Fri 12/12

3:35 pm-11:51 pm

1 stop6h 16m

Austin Bergstrom

Sat 1/10

12:05 pm-6:46 pm

1 stop8h 41m

$265

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 11/7

6:05 pm-6:18 pm

1 stop23h 13m

Austin Bergstrom

Mon 11/10

7:18 pm-10:20 pm

1 stop28h 02m

$265

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 11/6

8:50 am-12:14 am

1 stop14h 24m

Austin Bergstrom

Mon 11/10

7:18 pm-3:12 pm

1 stop20h 54m

$266

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 11/6

11:41 am-12:23 am

2 stops11h 42m

Austin Bergstrom

Mon 11/10

6:05 pm-12:07 am

1 stop7h 02m

$272

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 11/14

11:35 pm-9:54 am

1 stop9h 19m

Austin Bergstrom

Sun 11/16

5:00 am-10:12 am

1 stop6h 12m

$277

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 12/13

5:35 am-1:00 pm

1 stop6h 25m

Austin Bergstrom

Mon 1/19

5:10 am-10:24 am

1 stop6h 14m

$277

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/15

Showing 1-10 of 57 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, February is the cheapest month in which you can book a flight from Idaho to Austin (average of $114). Flying from Idaho to Austin in January 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 October 16, 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 6h 16m. Fly via Frontier, Alaska Airlines, or Delta to get the fastest option. The distance between Idaho and Austin 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 Idaho to Austin one-way?

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $86. However, be on the lookout for offers from Alaska Airlines and United Airlines, 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 Jackson Hole - 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, February is the cheapest month in which you can book a flight from Idaho to Austin (average of $114). Flying from Idaho to Austin in January 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
Round Rock
San Marcos
Fredericksburg
Cedar Park
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 October 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$189Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$204Average$398FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$468FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$268Average$472FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$381FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$521FlexibilityNo cancel feeOn-time69%

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