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$139+ 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 7/9. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Jun 21 — Jun 281
Sat 6/21
Sat 6/28
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 August or January, 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 June 16, 2025.

Round-trip from

$196
(Priceline)

One-way from

$139
(Hawaiian Airlines)

Popular in

March

Cheapest in

August

Average price

$406
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. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($9 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 16, 2025.

This Priceline deal was found by Cheapflights users on 6/14. 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 7/312:36 pmBOI - AUS
1 stop10h 12mFrontier
Sun 7/66:00 amAUS - BOI
1 stop6h 46mFrontier
Deal found 6/14$196
This Hawaiian Airlines deal was found by Cheapflights users on 6/16. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/73:10 pmBOI - AUS
1 stop7h 55mHawaiian Airlines
Mon 8/119:45 amAUS - BOI
1 stop7h 25mHawaiian Airlines
Deal found 6/16$244
This Mytrip deal was found by Cheapflights users on 6/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/189:49 pmBOI - AUS
1 stop6h 13mSpirit Airlines
Sun 9/219:50 amAUS - BOI
2 stops35h 54mSpirit Airlines
Deal found 6/14$245
This Orbitz deal was found by Cheapflights users on 6/16. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/44:00 pmBOI - AUS
1 stop6h 37mMultiple Airlines
Sun 7/66:00 amAUS - BOI
1 stop6h 46mMultiple Airlines
Deal found 6/16$248
This Southwest deal was found by Cheapflights users on 6/16. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/75:45 amBOI - AUS
2 stops9h 10mSouthwest
Mon 8/116:15 amAUS - BOI
1 stop6h 15mSouthwest
Deal found 6/16$250
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/306:52 amBOI - AUS
1 stop6h 03mAmerican Airlines
Tue 7/85:00 amAUS - BOI
1 stop6h 54mAmerican Airlines
Deal found 6/15$283
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/304:40 pmBOI - AUS
1 stop6h 19mUnited Airlines
Fri 7/45:15 amAUS - BOI
1 stop5h 31mUnited Airlines
Deal found 6/15$287
This Alaska Airlines deal was found by Cheapflights users on 6/16. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/98:21 pmBOI - AUS
1 stop17h 49mAlaska Airlines
Sun 10/127:32 pmAUS - BOI
1 stop15h 03mAlaska Airlines
Deal found 6/16$306
This Delta deal was found by Cheapflights users on 6/15. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:45 amBOI - AUS
1 stop6h 58mDelta
Thu 7/177:15 pmAUS - BOI
1 stop5h 54mDelta
Deal found 6/15$343

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 June 16, 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 7/3

12:36 pm-11:48 pm

1 stop10h 12m

Austin Bergstrom

Sun 7/6

6:00 am-11:46 am

1 stop6h 46m

$196

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 8/7

3:10 pm-12:05 am

1 stop7h 55m

Austin Bergstrom

Mon 8/11

9:45 am-4:10 pm

1 stop7h 25m

$244

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 9/18

9:49 pm-5:02 am

1 stop6h 13m

Austin Bergstrom

Sun 9/21

9:50 am-8:44 pm

2 stops35h 54m

$245

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 7/4

4:00 pm-11:37 pm

1 stop6h 37m

Austin Bergstrom

Sun 7/6

6:00 am-11:46 am

1 stop6h 46m

$248

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 8/7

5:45 am-3:55 pm

2 stops9h 10m

Austin Bergstrom

Mon 8/11

6:15 am-11:30 am

1 stop6h 15m

$250

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 6/30

6:52 am-1:55 pm

1 stop6h 03m

Austin Bergstrom

Tue 7/8

5:00 am-10:54 am

1 stop6h 54m

$283

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 6/30

4:40 pm-11:59 pm

1 stop6h 19m

Austin Bergstrom

Fri 7/4

5:15 am-9:46 am

1 stop5h 31m

$287

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 10/9

8:21 pm-3:10 pm

1 stop17h 49m

Austin Bergstrom

Sun 10/12

7:32 pm-9:35 am

1 stop15h 03m

$306

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 7/9

6:00 pm-12:30 am

1 stop5h 30m

Austin Bergstrom

Fri 7/18

4:00 pm-10:57 pm

1 stop7h 57m

$343

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 7/9

3:10 pm-12:05 am

1 stop7h 55m

$139

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/16

Showing 1-10 of 16 results
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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 June 13, 2025.

The best time to book flights from Boise to Austin is 35 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 June 16, 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.

Rainfall in Austin by month

Plan your trip to Austin by taking into account the average rainfall totals by month.

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.

Temperature in Austin by month

Plan your trip to Austin by taking into account the average temperature totals by month.

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).

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 June 16, 2025.
See what other customers who have flown with Alaska Airlines, Southwest and Delta from Boise to Austin have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,278 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,963 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Hawaiian Airlines
7.9
Good
2,500 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,801 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Comfort

7.8

Overall

8.0

Food

7.1

Boarding

8.1

Entertainment

7.1

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Frontier is currently your cheapest option to Austin, with prices starting at $196. Additional round-trip tickets that might be worth considering are offered by Hawaiian Airlines and Southwest, with the lowest prices starting at $244 and $250, respectively. Frontier is priced at 49% 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 Hawaiian Airlines, which is currently one of the cheapest options available, starting at $139. United Airlines flights start at $185 while deals on Spirit Airlines start at $222 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 Boise?

Book flights to Boise if you plan to visit one of these locations
San Marcos
Georgetown
Fredericksburg
Pflugerville
Round Rock
Dripping Springs
Cedar Park
Canyon Lake
Bastrop
Seguin
Horseshoe Bay

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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 June 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$96Average$279FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$236Average$435FlexibilityNo cancel feeOn-time69%
Alaska AirlinesCheapest$245Average$478FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$261Average$354FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$299Average$473FlexibilityNo cancel feeOn-time63%

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