How long is the flight from Boise to Austin?

There are many flights that can get you from Boise to Austin in 6h 51m. Fly via Delta or United Airlines to get the fastest option. There are 1373 mi between Boise and Austin. This flight may include one or multiple stops.

What are the cheapest airlines flying from Boise to Austin round-trip?

Flying on Frontier is currently your cheapest option to Austin, with prices starting at $179. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $183 and $185, respectively. Frontier is priced at 50% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Boise to Austin one-way?

To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $98. Southwest flights start at $108 while deals on Alaska Airlines start at $128 one-way.

In terms of precipitation, rainfall in Austin ranges from 2.1 - 4.2 inches per month. May is typically the wettest month, when rainfall can reach 4.2 in. July is typically the driest time to visit Austin when rainfall is around 2.1 in.

If weather is an important factor for your trip to Austin, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 84.2 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 50.0 F).

What are the most popular airlines that fly from Boise to Austin?

When booking a flight from Boise to Austin, you may want to consider flying on Delta, Southwest or United Airlines as they are the most popular for this route.

What is the cheapest time of day to fly from BOI to AUS?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Boise to Austin as you normally would.

Most accurate provider : When it comes to deals on Boise-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Austin flight searches over the past month and is updated monthly.

Most trusted provider : When it comes to deals on Boise-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

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

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

How can I find direct flights from Boise to Austin?

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

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

Yes. Cheapflights offers flight deals from Boise 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.

$111+ Flights from Boise to Austin

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1. Tell us where you want to go

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Cheap flight deals from Boise to Austin

Cheapest flights from Boise to Austin
Explore the most affordable flight options available from Boise to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Wed 3/48:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$132

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Sat 3/710:45 pm

AUS

BOI

1 stop12h 35m

Frontier

Deal found 1/26

$136

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Wed 3/48:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$145

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Thu 3/56:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$146

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Sat 3/710:45 pm

AUS

BOI

1 stop12h 35m

Frontier

Deal found 1/26

$149

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Thu 3/56:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$163

Sun 3/111:56 am

BOI

AUS

2 stops21h 41m

Frontier

Sat 3/710:45 pm

AUS

BOI

1 stop12h 35m

Frontier

Deal found 1/26

$186

Thu 2/1212:36 pm

BOI

AUS

1 stop10h 40m

Frontier

Wed 2/188:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$191

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Sun 3/16:45 am

AUS

BOI

1 stop5h 26m

Frontier

Deal found 1/27

$199

Sun 3/111:56 am

BOI

AUS

2 stops21h 41m

Frontier

Thu 3/56:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$200

Best flights from Boise to Austin
Discover carefully curated flight deals from Boise to Austin that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated January 29, 2026.

Tue 2/173:01 pm

BOI

AUS

1 stop6h 51m

Delta

Wed 2/182:59 pm

AUS

BOI

1 stop6h 56m

Delta

Deal found 1/26

$237

Sat 4/189:26 am

BOI

AUS

1 stop7h 48m

United Airlines

Sat 4/252:10 pm

AUS

BOI

1 stop6h 29m

United Airlines

Deal found 1/28

$237

Wed 3/259:55 am

BOI

AUS

1 stop7h 09m

Alaska Airlines

Tue 3/316:00 am

AUS

BOI

2 stops17h 52m

Alaska Airlines

Deal found 1/28

$252

Thu 4/2311:53 am

BOI

AUS

1 stop11h 28m

Frontier

Sun 4/266:45 am

AUS

BOI

1 stop5h 23m

Frontier

Deal found 1/28

$266

Wed 3/255:31 pm

BOI

AUS

1 stop5h 13m

United Airlines

Tue 3/312:10 pm

AUS

BOI

1 stop7h 03m

United Airlines

Deal found 1/28

$237

Sat 2/281:51 pm

BOI

AUS

1 stop9h 05m

Delta

Wed 3/46:10 am

AUS

BOI

1 stop8h 01m

Delta

Deal found 1/26

$237

Wed 2/252:40 pm

BOI

AUS

1 stop5h 11m

United Airlines

Wed 3/47:10 am

AUS

BOI

1 stop7h 28m

United Airlines

Deal found 1/28

$237

Sat 2/281:51 pm

BOI

AUS

1 stop9h 05m

Delta

Sat 3/72:59 pm

AUS

BOI

1 stop6h 56m

Delta

Deal found 1/26

$237

Fri 4/245:00 am

BOI

AUS

1 stop5h 25m

United Airlines

Tue 4/282:10 pm

AUS

BOI

1 stop7h 03m

United Airlines

Deal found 1/27

$271

Sun 3/112:59 pm

BOI

AUS

1 stop7h 35m

Delta

Tue 3/36:10 am

AUS

BOI

1 stop8h 01m

Delta

Deal found 1/26

$271

Fri 4/175:00 am

BOI

AUS

1 stop5h 25m

United Airlines

Tue 4/217:00 am

AUS

BOI

1 stop7h 31m

United Airlines

Deal found 1/27

$271

Last-minute flights from Boise to Austin
Discover last-minute flight deals from Boise to Austin. Data last updated January 29, 2026 and is based on user searches.

Thu 2/1212:36 pm

BOI

AUS

1 stop10h 40m

Frontier

Wed 2/188:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$191

Thu 2/1212:36 pm

BOI

AUS

1 stop10h 40m

Frontier

Thu 2/196:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$201

Sun 2/1511:56 am

BOI

AUS

1 stop11h 20m

Frontier

Wed 2/188:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$208

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Wed 3/48:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$132

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Sat 3/710:45 pm

AUS

BOI

1 stop12h 35m

Frontier

Deal found 1/26

$136

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Thu 3/56:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$146

Thu 2/2612:38 pm

BOI

AUS

1 stop10h 38m

Frontier

Sun 3/16:45 am

AUS

BOI

1 stop5h 26m

Frontier

Deal found 1/27

$199

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Wed 3/48:30 am

AUS

BOI

1 stop28h 21m

Frontier

Deal found 1/26

$145

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Sat 3/710:45 pm

AUS

BOI

1 stop12h 35m

Frontier

Deal found 1/26

$149

Fri 2/2711:56 am

BOI

AUS

1 stop11h 20m

Frontier

Thu 3/56:45 am

AUS

BOI

1 stop6h 06m

Frontier

Deal found 1/26

$163

One-way flights from Boise to Austin
Search for one-way flight options from Boise to Austin. Find affordable one-way fares based on user searches. Data last updated January 29, 2026.

Thu 4/912:03 pm

BOI

AUS

1 stop11h 18m

Frontier

Deal found 1/27

$111

Tue 4/72:22 pm

BOI

AUS

1 stop9h 12m

Alaska Airlines

Deal found 1/27

$119

Sun 4/1212:03 pm

BOI

AUS

1 stop11h 18m

Frontier

Deal found 1/27

$146

Sat 4/116:32 am

BOI

AUS

1 stop15h 32m

Alaska Airlines

Deal found 1/27

$162

Tue 4/79:26 am

BOI

AUS

2 stops11h 16m

United Airlines

Deal found 1/27

$164

Fri 4/102:22 pm

BOI

AUS

1 stop9h 12m

Alaska Airlines

Deal found 1/27

$172

Sun 3/1512:15 pm

BOI

AUS

1 stop8h 48m

Frontier

Deal found 1/27

$184

Mon 4/67:05 am

BOI

AUS

1 stop7h 33m

Delta

Deal found 1/27

$186

Thu 4/237:00 am

BOI

AUS

2 stops15h 00m

Alaska Airlines

Deal found 1/28

$192

Mon 4/64:05 pm

BOI

AUS

2 stops11h 51m

United Airlines

Deal found 1/27

$198

Find flight deals from Boise to Austin

Most accurate provider	FlightHub 3 stars
Most trusted provider	FlightHub 3 stars
Round-trip from	$132 (Kiwi.com)
One-way from	$111 (Expedia)
Popular in	March
Cheapest in	September
Average price	$296

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 Boise Air Term. Gowen Fld to Austin Bergstrom

Search Deals

One-way flight from Boise Air Term. Gowen Fld to Austin Bergstrom

Search Deals

Highest demand for flights based on searches. 9% potential increase in price ($37 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 3% potential price decrease ($11 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in January 2026

Search Deals

Fly from

Fly to

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 2/17

3:01 pm-10:52 pm

1 stop6h 51m

Austin Bergstrom

Wed 2/18

2:59 pm-8:55 pm

1 stop6h 56m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 4/18

9:26 am-6:14 pm

1 stop7h 48m

Austin Bergstrom

Sat 4/25

2:10 pm-7:39 pm

1 stop6h 29m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 3/25

5:31 pm-11:44 pm

1 stop5h 13m

Austin Bergstrom

Tue 3/31

2:10 pm-8:13 pm

1 stop7h 03m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 2/28

1:51 pm-11:56 pm

1 stop9h 05m

Austin Bergstrom

Wed 3/4

6:10 am-1:11 pm

1 stop8h 01m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 2/25

2:40 pm-8:51 pm

1 stop5h 11m

Austin Bergstrom

Wed 3/4

7:10 am-1:38 pm

1 stop7h 28m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 2/28

1:51 pm-11:56 pm

1 stop9h 05m

Austin Bergstrom

Sat 3/7

2:59 pm-8:55 pm

1 stop6h 56m

$237

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 3/25

9:55 am-6:04 pm

1 stop7h 09m

Austin Bergstrom

Tue 3/31

6:00 am-10:52 pm

2 stops17h 52m

$252

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 4/23

11:53 am-12:21 am

1 stop11h 28m

Austin Bergstrom

Sun 4/26

6:45 am-11:08 am

1 stop5h 23m

$266

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 4/24

5:00 am-11:25 am

1 stop5h 25m

Austin Bergstrom

Tue 4/28

2:10 pm-8:13 pm

1 stop7h 03m

$271

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 3/1

12:59 pm-9:34 pm

1 stop7h 35m

Austin Bergstrom

Tue 3/3

6:10 am-1:11 pm

1 stop8h 01m

$271

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/28

Showing 1-10 of 23 results

Compare providers for flights from Boise to Austin

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Austin in January.

Provider	Price Accuracy	Trust Score*
Expedia	Price Accuracy1 star	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

Most accurate provider: When it comes to deals on Boise-Austin flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boise-Austin flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Boise-Austin flight searches over the past month and is updated monthly.
Most trusted provider: When it comes to deals on Boise-Austin flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boise-Austin flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boise to Austin

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

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

The best time to book flights from Boise to Austin is 45 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, March is the cheapest month in which you can book a flight from Boise to Austin (average of $114). Flying from Boise 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.

Reviews of airlines servicing Austin

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Boise to Austin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Southwest

8.0

Very good

4,267 reviews

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Delta

7.9

Good

8,128 reviews

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

United Airlines

7.4

Good

9,215 reviews

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

American Airlines

7.2

Good

11,205 reviews

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Frontier

5.7

Fair

3,056 reviews

Southwest

8.0

Very good

4,267 reviews

Reviews

1 / 20

2.0

Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

How long is the flight from Boise to Austin?
There are many flights that can get you from Boise to Austin in 6h 51m. Fly via Delta or United Airlines to get the fastest option. There are 1373 mi between Boise and Austin. This flight may include one or multiple stops.
What are the cheapest airlines flying from Boise to Austin round-trip?
Flying on Frontier is currently your cheapest option to Austin, with prices starting at $179. Additional round-trip tickets that might be worth considering are offered by Southwest and Delta, with the lowest prices starting at $183 and $185, respectively. Frontier is priced at 50% lower than the current average price of a flight leaving 3 months from now.
What are the cheapest airlines to fly from Boise to Austin one-way?
To fly one-way, consider booking your trip with Delta, which is currently one of the cheapest options available, starting at $98. Southwest flights start at $108 while deals on Alaska Airlines start at $128 one-way.
Can I find deals for flights from Boise to Austin that include hotel bookings?
Yes. In addition to deals on Boise to Austin flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Boise to Austin?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boise to Austin.
Can I find deals for business class flights from Boise to Austin?
Yes. Cheapflights offers flight deals from Boise 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 Boise to Austin?
Currently, March is the cheapest month in which you can book a flight from Boise to Austin (average of $114). Flying from Boise 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

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Top 6 airlines flying from Boise to Austin

Airline	Cheapest	Average	Flexibility	On-time
Frontier	Cheapest$179	Average$240	FlexibilityNo cancel fee	On-time62%
Southwest	Cheapest$183	Average$379	FlexibilityNo cancel fee	On-time63%
Delta	Cheapest$185	Average$341	FlexibilityNo cancel fee	On-timeN/A
Alaska Airlines	Cheapest$250	Average$512	FlexibilityNo cancel fee	On-time75%
American Airlines	Cheapest$275	Average$352	FlexibilityNo cancel fee	On-time71%
United Airlines	Cheapest$276	Average$421	FlexibilityNo cancel fee	On-time69%

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$111+ Cheap flights from Boise to Austin (BOI - 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 4/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Boise to Austin with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheap flight deals from Boise to Austin

Cheapest flights from Boise to AustinExplore the most affordable flight options available from Boise to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Explore the most affordable flight options available from Boise to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.

Find flight deals from Boise to Austin

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Cheapflights Fare Finder

Use the filters below to find and compare flights from Boise to Austin that are best for you.

Compare providers for flights from Boise to Austin

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boise to Austin in January.

Best time to book a flight from Boise to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Boise with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Boise to Austin

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

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

Reviews of airlines servicing Austin

Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Boise to Austin to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.

Related info for your journey

Find useful and relevant information for your journey from Boise to Austin. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

How long is the flight from Boise to Austin?

What are the cheapest airlines flying from Boise to Austin round-trip?

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Alternative routes for Boise to Austin

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Top 6 airlines flying from Boise to Austin

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Cheapest flights from Boise to Austin
Explore the most affordable flight options available from Boise to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 29, 2026.