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$145+ 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 11/7. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Nov 13 — Nov 201
Thu 11/13
Thu 11/20
1 adult, Economy
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Cheapflights Tip: The best prices from Boise Air Term. Gowen Fld to Austin Bergstrom are usually found in September or January, booked 71 days in advance, depart on a Wednesday or Tuesday and return on a Saturday

Cheap flight deals from Boise to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Boise (BOI) to Austin (AUS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 14, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$203
(Expedia)

One-way from

$145
(United Airlines)

Popular in

March

Cheapest in

September

Average price

$357
Provider with most accurate pricing for Boise Air Term. Gowen Fld-Austin Bergstrom flight deals.
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Provider most trusted by Cheapflights users for Boise Air Term. Gowen Fld-Austin Bergstrom flights.
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From Boise Air Term. Gowen Fld to Austin Bergstrom
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One-way flight from Boise Air Term. Gowen Fld 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).
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Average for round-trip flights in October 2025
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Find 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 October 14, 2025.

This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Thu 10/2312:28 pmBOI - AUS
1 stop11h 05mFrontier
Thu 10/306:00 amAUS - BOI
1 stop6h 48mFrontier
Deal found 10/12$193
This Expedia deal was found by Cheapflights users on 10/11. 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 12/1112:59 pmBOI - AUS
1 stop9h 13mMultiple Airlines
Sat 12/136:00 amAUS - BOI
1 stop7h 42mMultiple Airlines
Deal found 10/11$203
This Frontier deal was found by Cheapflights users on 10/12. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/3012:33 pmBOI - AUS
1 stop10h 59mFrontier
Sun 11/25:00 amAUS - BOI
1 stop6h 48mFrontier
Deal found 10/12$212
This Kiwi.com deal was found by Cheapflights users on 10/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/612:33 pmBOI - AUS
1 stop10h 59mFrontier
Wed 11/127:45 amAUS - BOI
1 stop28h 58mFrontier
Deal found 10/13$249
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/78:50 pmBOI - AUS
1 stop17h 24mAlaska Airlines
Mon 11/107:00 amAUS - BOI
1 stop17h 54mAlaska Airlines
Deal found 10/14$265
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/66:28 amBOI - AUS
1 stop16h 46mAlaska Airlines
Mon 11/107:18 pmAUS - BOI
1 stop16h 11mAlaska Airlines
Deal found 10/14$266
This Delta deal was found by Cheapflights users on 10/12. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/151:50 pmBOI - AUS
1 stop9h 07mDelta
Mon 11/178:10 amAUS - BOI
2 stops11h 44mDelta
Deal found 10/12$271
This Delta deal was found by Cheapflights users on 10/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/611:41 amBOI - AUS
2 stops11h 42mDelta
Mon 11/106:05 pmAUS - BOI
1 stop7h 02mDelta
Deal found 10/14$272
This Alaska Airlines deal was found by Cheapflights users on 10/14. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:25 amBOI - AUS
1 stop13h 30mAlaska Airlines
Mon 1/198:30 amAUS - BOI
1 stop14h 39mAlaska Airlines
Deal found 10/14$277

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boise 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 14, 2025.
Use the filters below to find and compare flights from Boise to Austin that are best for you.

Fly from

Boise

Fly to

Austin

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 10/30

12:33 pm-12:32 am

1 stop10h 59m

Austin Bergstrom

Sun 11/2

5:00 am-10:48 am

1 stop6h 48m

$212

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 10/31

8:50 am-6:18 pm

1 stop8h 28m

Austin Bergstrom

Tue 11/4

7:00 am-3:12 pm

1 stop9h 12m

$256

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 11/6

6:28 am-12:14 am

1 stop16h 46m

Austin Bergstrom

Mon 11/10

7:00 am-11:54 pm

1 stop17h 54m

$266

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 11/15

1:50 pm-11:57 pm

1 stop9h 07m

Austin Bergstrom

Mon 11/17

8:10 am-6:54 pm

2 stops11h 44m

$271

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 11/5

2:11 pm-9:53 pm

1 stop6h 42m

Austin Bergstrom

Thu 11/6

7:30 am-1:30 pm

1 stop7h 00m

$283

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 11/4

7:40 am-5:50 pm

1 stop9h 10m

Austin Bergstrom

Thu 11/6

1:40 pm-10:29 pm

1 stop9h 49m

$283

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 11/6

2:11 pm-9:53 pm

1 stop6h 42m

Austin Bergstrom

Wed 11/12

5:30 am-1:25 pm

2 stops8h 55m

$288

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 1/16

3:00 pm-11:03 pm

1 stop7h 03m

Austin Bergstrom

Mon 1/19

5:10 am-10:24 am

1 stop6h 14m

$289

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 11/7

2:11 pm-9:53 pm

1 stop6h 42m

$145

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 12/29

7:00 am-2:41 pm

1 stop6h 41m

$170

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/11

Showing 1-10 of 16 results
1
2

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 October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust 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?

Use this chart to determine the optimal time to book a round-trip flight from Boise to Austin. Price data was last updated on October 10, 2025.

The best time to book flights from Boise to Austin is 71 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, February is the cheapest month in which you can book a flight from Boise to Austin (average of $114). Flying from Boise 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 BOI to AUS?

Find hourly flight availability from Boise 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 14, 2025.

One of the essential ways to save on airfare from Boise to Austin is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 6% on airfare.

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

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

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

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Austin. Reviews last updated October 14, 2025.
Peruse reviews from past customers who have flown with Alaska Airlines, Southwest, and Delta 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.
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Alaska Airlines
8.0
Very good
11,070 reviews
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Southwest
8.0
Very good
4,235 reviews
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
Delta
8.0
Very good
7,973 reviews
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
United Airlines
7.4
Good
8,974 reviews
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.
American Airlines
7.2
Good
11,045 reviews
Alaska Airlines
8.0
Very good
11,070 reviews

Entertainment

7.0

Overall

8.0

Boarding

8.1

Crew

8.5

Comfort

7.8

Food

7.1

Reviews

1 / 20
10.0
Excellent

Anonymous,Sep 2025

BOS - HNL

The flight was awesome but a little long. I would prefer a flight with a layover. The amount of space available was minimal and a little uncomfortable for that long of a flight.

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?

    There are many flights that can get you from Boise to Austin in 8h 28m. Fly via Frontier, Hawaiian Airlines, or Alaska 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 Spirit Airlines is currently your cheapest option to Austin, with prices starting at $82. Additional round-trip tickets that might be worth considering are offered by Frontier and Delta, with the lowest prices starting at $189 and $204, respectively. Spirit Airlines is priced at 78% 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 United Airlines, which is currently one of the cheapest options available, starting at $145. American Airlines flights start at $170 while deals on Alaska Airlines start at $183 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, February is the cheapest month in which you can book a flight from Boise to Austin (average of $114). Flying from Boise 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 7 airlines flying from Boise to Austin

Discover the top 7 airlines that operate flights from Boise 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 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$82Average$279FlexibilityNo cancel feeOn-time65%
FrontierCheapest$189Average$248FlexibilityNo cancel feeOn-time62%
DeltaCheapest$204Average$349FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$512FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$268Average$467FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$400FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$279Average$496FlexibilityNo cancel feeOn-time69%

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