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$112+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
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 January or October, booked 35 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 August 14, 2025.

Round-trip from

$144
(Priceline)

One-way from

$112
(Priceline)

Popular in

November

Cheapest in

January

Average price

$388
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
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Highest demand for flights based on searches. 7% potential increase in price ($30 potential increase over avg. RT price).
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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 August 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 August 14, 2025.

This Priceline deal was found by Cheapflights users on 8/14. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:22 pmBOI - AUS
1 stop10h 10mFrontier
Sun 9/146:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 8/14$144
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/112:16 pmBOI - AUS
1 stop18h 35mMultiple Airlines
Mon 9/151:00 pmAUS - BOI
1 stop8h 31mMultiple Airlines
Deal found 8/12$193
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Fri 9/199:26 pmBOI - AUS
1 stop17h 01mMultiple Airlines
Mon 9/221:00 pmAUS - BOI
1 stop8h 31mMultiple Airlines
Deal found 8/13$206
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Fri 9/129:26 pmBOI - AUS
1 stop17h 01mMultiple Airlines
Mon 9/151:00 pmAUS - BOI
1 stop8h 31mMultiple Airlines
Deal found 8/12$211
This Kiwi.com deal was found by Cheapflights users on 8/12. 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.
Sun 9/72:16 pmBOI - AUS
1 stop20h 54mMultiple Airlines
Mon 9/151:00 pmAUS - BOI
1 stop8h 31mMultiple Airlines
Deal found 8/12$212
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1812:22 pmBOI - AUS
1 stop10h 10mFrontier
Sun 9/216:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 8/14$215
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 9/252:16 pmBOI - AUS
1 stop18h 35mMultiple Airlines
Mon 9/291:00 pmAUS - BOI
1 stop8h 31mMultiple Airlines
Deal found 8/12$226
This Kiwi.com deal was found by Cheapflights users on 8/13. 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.
Mon 10/138:58 pmBOI - AUS
1 stop14h 59mMultiple Airlines
Fri 10/176:57 pmAUS - BOI
1 stop19h 33mMultiple Airlines
Deal found 8/13$233
This Alaska Airlines deal was found by Cheapflights users on 8/12. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/106:35 amBOI - AUS
1 stop7h 43mAlaska Airlines
Wed 9/105:50 pmAUS - BOI
1 stop7h 09mAlaska Airlines
Deal found 8/12$245
This Priceline deal was found by Cheapflights users on 8/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1112:22 pmBOI - AUS
1 stop10h 10mFrontier
Thu 9/186:30 amAUS - BOI
1 stop6h 07mFrontier
Deal found 8/12$248
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/179:00 amBOI - AUS
1 stop8h 50mHawaiian Airlines
Tue 9/237:15 amAUS - BOI
1 stop8h 45mHawaiian Airlines
Deal found 8/14$250

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 August 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 9/11

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Sun 9/14

6:30 am-11:37 am

1 stop6h 07m

$144

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/11

2:16 pm-9:51 am

1 stop18h 35m

Austin Bergstrom

Mon 9/15

1:00 pm-8:31 pm

1 stop8h 31m

$193

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 10/16

12:28 pm-12:33 am

1 stop11h 05m

Austin Bergstrom

Sun 10/19

6:00 am-11:43 am

1 stop6h 43m

$193

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/19

9:26 pm-3:27 pm

1 stop17h 01m

Austin Bergstrom

Mon 9/22

1:00 pm-8:31 pm

1 stop8h 31m

$206

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/12

9:26 pm-3:27 pm

1 stop17h 01m

Austin Bergstrom

Mon 9/15

1:00 pm-8:31 pm

1 stop8h 31m

$211

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 9/7

2:16 pm-12:10 pm

1 stop20h 54m

Austin Bergstrom

Mon 9/15

1:00 pm-8:31 pm

1 stop8h 31m

$212

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 9/19

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Sun 9/21

6:30 am-11:37 am

1 stop6h 07m

$215

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/18

12:22 pm-11:32 pm

1 stop10h 10m

Austin Bergstrom

Sun 9/21

6:30 am-11:37 am

1 stop6h 07m

$215

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/25

2:16 pm-9:51 am

1 stop18h 35m

Austin Bergstrom

Mon 9/29

1:00 pm-8:31 pm

1 stop8h 31m

$226

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 10/13

8:58 pm-12:57 pm

1 stop14h 59m

Austin Bergstrom

Fri 10/17

6:57 pm-1:30 pm

1 stop19h 33m

$233

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 20 results
1
2

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 August 8, 2025.

The best time to book flights from Boise to Austin is 29 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, January is the cheapest month in which you can book a flight from Boise to Austin (average of $286). Flying from Boise to Austin in March is currently the most expensive (average of $362). 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 August 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 7% 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 August 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
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Southwest
8.0
Very good
4,244 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Boarding

8.1

Overall

8.0

Entertainment

7.0

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

  • 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 $96. Additional round-trip tickets that might be worth considering are offered by Delta and United Airlines, with the lowest prices starting at $232 and $236, respectively. Spirit Airlines is priced at 75% 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 Frontier, which is currently one of the cheapest options available, starting at $112. Alaska Airlines flights start at $125 while deals on Southwest start at $126 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, January is the cheapest month in which you can book a flight from Boise to Austin (average of $286). Flying from Boise to Austin in March is currently the most expensive (average of $362). 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
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

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Alternative routes for Boise to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 6 airlines flying from Boise to Austin

Discover the top 6 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$279FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$358FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$482FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$245Average$478FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$272Average$471FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$280Average$394FlexibilityNo cancel feeOn-time71%

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