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$101+ 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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Dec 29 — Jan 51
Mon 12/29
Mon 1/5
1 adult, Economy
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Find cheap flights from Boise to Austin with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

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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 45 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 November 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$184
(Frontier)

One-way from

$101
(Trip.com)

Popular in

March

Cheapest in

September

Average price

$435
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
Search Deals
One-way flight from Boise Air Term. Gowen Fld to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in November 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 November 29, 2025.

This Frontier deal was found by Cheapflights users on 11/27. 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.
Sat 12/2012:54 pmBOI - AUS
1 stop10h 20mFrontier
Thu 1/16:45 amAUS - BOI
1 stop5h 58mFrontier
Deal found 11/27$184
This Frontier deal was found by Cheapflights users on 11/27. 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 12/1812:38 pmBOI - AUS
1 stop10h 36mFrontier
Thu 1/16:45 amAUS - BOI
1 stop5h 58mFrontier
Deal found 11/27$208
This Frontier deal was found by Cheapflights users on 11/28. 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.
Fri 12/1212:44 pmBOI - AUS
1 stop10h 30mFrontier
Sun 12/146:55 amAUS - BOI
1 stop5h 54mFrontier
Deal found 11/28$232
This Kiwi.com deal was found by Cheapflights users on 11/28. 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 12/145:41 pmAUS - BOI
1 stop23h 03mMultiple Airlines
Deal found 11/28$246
This Kiwi.com deal was found by Cheapflights users on 11/28. 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 12/1412:44 pmBOI - AUS
1 stop23h 29mFrontier
Thu 12/186:45 amAUS - BOI
1 stop5h 58mFrontier
Deal found 11/28$253
This Expedia deal was found by Cheapflights users on 11/29. 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.
Wed 12/319:50 pmBOI - AUS
1 stop7h 50mMultiple Airlines
Sat 1/36:45 amAUS - BOI
1 stop6h 14mMultiple Airlines
Deal found 11/29$266
This Kiwi.com deal was found by Cheapflights users on 11/27. 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 12/1812:38 pmBOI - AUS
1 stop10h 36mMultiple Airlines
Thu 1/16:45 amAUS - BOI
2 stops33h 19mMultiple Airlines
Deal found 11/27$280
This Kiwi.com deal was found by Cheapflights users on 11/27. 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 12/1910:41 pmBOI - AUS
2 stops17h 34mMultiple Airlines
Thu 1/16:45 amAUS - BOI
1 stop5h 58mMultiple Airlines
Deal found 11/27$284
This Delta deal was found by Cheapflights users on 11/27. 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 12/195:20 amBOI - AUS
1 stop7h 12mDelta
Thu 1/16:00 amAUS - BOI
1 stop9h 18mDelta
Deal found 11/27$291
This Delta deal was found by Cheapflights users on 11/28. 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 12/135:50 amBOI - AUS
1 stop6h 20mDelta
Mon 1/195:30 amAUS - BOI
1 stop8h 00mDelta
Deal found 11/28$294
This Kiwi.com deal was found by Cheapflights users on 11/27. 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 30mMultiple Airlines
Mon 12/156:55 amAUS - BOI
2 stops9h 49mMultiple Airlines
Deal found 11/27$304

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 November 29, 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 1/1

12:38 pm-12:14 am

1 stop10h 36m

Austin Bergstrom

Mon 1/5

5:46 pm-11:57 pm

1 stop7h 11m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 2/18

6:28 am-6:00 pm

1 stop10h 32m

Austin Bergstrom

Mon 2/23

7:15 am-5:35 pm

1 stop11h 20m

$275

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 12/19

10:41 pm-5:15 pm

2 stops17h 34m

Austin Bergstrom

Thu 1/1

6:45 am-11:43 am

1 stop5h 58m

$284

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 2/22

5:40 am-4:45 pm

1 stop10h 05m

Austin Bergstrom

Sun 2/22

7:55 pm-12:40 pm

1 stop17h 45m

$290

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 1/18

6:23 am-3:54 pm

1 stop8h 31m

Austin Bergstrom

Thu 1/22

7:15 am-3:10 pm

1 stop8h 55m

$290

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 12/19

5:20 am-1:32 pm

1 stop7h 12m

Austin Bergstrom

Thu 1/1

6:00 am-2:18 pm

1 stop9h 18m

$291

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 12/24

1:55 pm-12:37 am

1 stop9h 42m

Austin Bergstrom

Thu 1/1

6:00 am-2:18 pm

1 stop9h 18m

$291

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 12/13

5:20 am-1:32 pm

1 stop7h 12m

Austin Bergstrom

Mon 1/19

6:20 am-12:09 pm

1 stop6h 49m

$294

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 12/25

8:05 am-6:10 pm

2 stops9h 05m

Austin Bergstrom

Wed 12/31

5:35 am-11:25 am

1 stop6h 50m

$304

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 12/12

12:44 pm-12:14 am

1 stop10h 30m

Austin Bergstrom

Mon 12/15

6:55 am-3:44 pm

2 stops9h 49m

$304

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/27

Showing 1-10 of 20 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 November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boise-Austin flight deals on Cheapflights vs. eDreams >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 eDreams the most. eDreams 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 November 21, 2025.

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 $119). Flying from Boise to Austin in December is currently the most expensive (average of $279). 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 November 29, 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 November 29, 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
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)
Alaska Airlines
8.0
Very good
11,376 reviews
Alaska Airlines
8.0
Very good
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)
Southwest
8.0
Very good
4,255 reviews
Alaska Airlines
8.0
Very good
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)
Delta
7.9
Good
8,012 reviews
Alaska Airlines
8.0
Very good
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)
United Airlines
7.4
Good
9,059 reviews
Alaska Airlines
8.0
Very good
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)
American Airlines
7.2
Good
11,044 reviews
Alaska Airlines
8.0
Very good
11,376 reviews

Overall

8.0

Entertainment

7.0

Boarding

8.1

Comfort

7.8

Crew

8.5

Food

7.1

Reviews

1 / 20
10.0
Excellent

Christine,Nov 2025

MIA - PDX

Just got on, logged in, and zoned out on some TV sit calm. Flight was easy Miami airport is something else!!! what a mess and now that I think of it, the luggage desk staff was super slow, I began to get irritated over paper running out, TSA was at the the end of the desk and the agent was assuring us we would get on flight, we arrived early, just didn't find the Alaska desk due to miss information. We walked that airport back and forth 3times. Language barriers were part of that fiasco and searching for American Airlines didn't help. (rolling my eyes)

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 10h 32m. Fly via Alaska Airlines to get the fastest option. There are 1373 mi between Boise and Austin.

  • 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 Delta and Alaska Airlines, with the lowest prices starting at $232 and $250, respectively. Frontier is priced at 53% lower than the current average price of a flight leaving 3 months from now.

  • 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 $119). Flying from Boise to Austin in December is currently the most expensive (average of $279). 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
Cedar Park
Round Rock
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

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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 November 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$179Average$240FlexibilityNo cancel feeOn-time62%
DeltaCheapest$232Average$343FlexibilityNo cancel feeOn-timeN/A
Alaska AirlinesCheapest$250Average$512FlexibilityNo cancel feeOn-time75%
SouthwestCheapest$265Average$421FlexibilityNo cancel feeOn-time63%
American AirlinesCheapest$278Average$352FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$283Average$446FlexibilityNo cancel feeOn-time69%

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