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$105+ 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 8/13. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Aug 18 — Aug 251
Tue 8/18
Tue 8/25
1 adult, Economy
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Cheap 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 July 19, 2026.

This Kiwi.com deal was found by Cheapflights users on 7/16. 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 8/61:24 pm
BOI
-
AUS
1 stop9h 43m
Frontier
Wed 8/122:25 pm
AUS
-
BOI
1 stop23h 04m
Frontier
Deal found 7/16$173
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 10/612:59 pm
BOI
-
AUS
1 stop10h 00m
Frontier
Tue 10/136:15 am
AUS
-
BOI
1 stop6h 13m
Frontier
Deal found 7/17$179
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Tue 9/1512:59 pm
BOI
-
AUS
1 stop10h 00m
Frontier
Wed 9/238:16 pm
AUS
-
BOI
1 stop16h 48m
Frontier
Deal found 7/15$197
This Kiwi.com deal was found by Cheapflights users on 7/18. 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 8/2710:12 am
GEG
-
AUS
1 stop23h 40m
Multiple Airlines
Sat 8/2912:47 pm
AUS
-
GEG
1 stop22h 35m
Multiple Airlines
Deal found 7/18$198
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 9/113:52 pm
BOI
-
AUS
2 stops26h 29m
Frontier
Mon 9/148:16 pm
AUS
-
BOI
1 stop16h 48m
Frontier
Deal found 7/17$225
This Kiwi.com deal was found by Cheapflights users on 7/15. 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.
Sun 9/133:52 pm
BOI
-
AUS
1 stop18h 44m
Frontier
Thu 9/176:45 am
AUS
-
BOI
1 stop6h 19m
Frontier
Deal found 7/15$233
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 10/612:59 pm
BOI
-
AUS
1 stop10h 00m
Frontier
Thu 10/156:15 am
AUS
-
BOI
1 stop6h 13m
Frontier
Deal found 7/17$235
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 10/612:59 pm
BOI
-
AUS
1 stop10h 00m
Frontier
Sat 10/109:27 pm
AUS
-
BOI
1 stop15h 01m
Frontier
Deal found 7/17$238
This Kiwi.com deal was found by Cheapflights users on 7/17. 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 10/93:52 pm
BOI
-
AUS
2 stops27h 40m
Frontier
Tue 10/136:15 am
AUS
-
BOI
1 stop6h 13m
Frontier
Deal found 7/17$239
This Frontier deal was found by Cheapflights users on 7/15. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:24 pm
BOI
-
AUS
1 stop6h 06m
Frontier
Tue 9/16:15 am
AUS
-
BOI
1 stop7h 14m
Frontier
Deal found 7/15$240
This CheapOair deal was found by Cheapflights users on 7/14. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:24 pm
BOI
-
AUS
1 stop6h 06m
Frontier
Mon 9/78:15 pm
AUS
-
BOI
1 stop17h 14m
Frontier
Deal found 7/14$244
This Kiwi.com deal was found by Cheapflights users on 7/16. 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.
Sun 10/257:20 pm
GEG
-
AUS
1 stop14h 16m
Multiple Airlines
Sun 11/112:31 pm
AUS
-
GEG
1 stop7h 59m
Multiple Airlines
Deal found 7/16$327

Find flight deals from Idaho to Austin

Keep the following information in mind while searching for Idaho to Austin flight deals. Data was last updated July 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$173
(Kiwi.com)

One-way from

$105
(Kiwi.com)

Popular in

July

Cheapest in

January

Average price

$566
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. 13% potential increase in price ($60 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($15 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 19, 2026.
Use the filters below to find and compare flights from Idaho to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 8/20

6:23 am-3:11 pm

1 stop7h 48m

Austin Bergstrom

Mon 8/24

1:55 pm-8:20 pm

1 stop7h 25m

$299

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 9/5

1:32 pm-11:59 pm

1 stop9h 27m

Austin Bergstrom

Wed 9/9

1:55 pm-8:20 pm

1 stop7h 25m

$299

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 8/13

4:55 pm-11:10 pm

1 stop5h 15m

Austin Bergstrom

Wed 8/19

4:30 pm-11:10 pm

2 stops7h 40m

$304

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 8/6

3:50 pm-12:25 am

2 stops7h 35m

Austin Bergstrom

Wed 8/12

7:00 am-1:40 pm

2 stops7h 40m

$329

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 9/5

7:03 am-1:15 pm

1 stop28h 12m

Austin Bergstrom

Wed 9/9

7:15 am-11:48 am

1 stop6h 33m

$331

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 9/5

6:15 am-4:20 pm

2 stops8h 05m

Austin Bergstrom

Tue 9/15

7:00 am-1:05 pm

2 stops8h 05m

$340

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 9/5

6:15 am-4:20 pm

2 stops8h 05m

Austin Bergstrom

Wed 9/9

4:45 pm-10:55 pm

2 stops8h 10m

$340

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Thu 10/29

1:05 pm-9:42 pm

1 stop7h 37m

Austin Bergstrom

Mon 11/2

2:30 pm-7:26 pm

1 stop5h 56m

$365

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/4

6:49 pm-10:27 pm

1 stop26h 38m

Austin Bergstrom

Tue 9/8

8:30 am-3:30 pm

1 stop8h 00m

$374

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Fri 10/30

2:40 pm-11:15 pm

2 stops7h 35m

Austin Bergstrom

Mon 11/2

3:20 pm-9:02 pm

1 stop6h 42m

$377

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/14

Showing 1-10 of 56 resultsSorted by cheapest first
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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, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $288). Flying from Idaho to Austin in July is currently the most expensive (average of $572). 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.

How much does it cost to fly round-trip from Idaho to Austin?

How far ahead should I book a flight from Idaho to Austin?

Booking 69 days in advance of your planned departure date is, on average, the best time to get cheap flights from Idaho to Austin. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

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 5h 15m. Fly via Alaska Airlines, Southwest, or Delta 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 Delta, with whom users have recently found tickets for as low as $98. However, be on the lookout for offers from Frontier and Alaska 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 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, January is the cheapest month in which you can book a flight from Idaho to Austin (average of $288). Flying from Idaho to Austin in July is currently the most expensive (average of $572). 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
Cedar Park
San Marcos
Bastrop
Fredericksburg
Pflugerville
Dripping Springs
Georgetown
Seguin
Canyon Lake

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Alternative routes for Idaho to Austin

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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 July 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$154Average$250FlexibilityNo cancel feeOn-time62%
DeltaCheapest$236Average$400FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$468FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$262Average$451FlexibilityNo cancel feeOn-time63%
United AirlinesCheapest$269Average$412FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$278Average$408FlexibilityNo cancel feeOn-time71%

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