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$80+ 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 5/19. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
May 2 — May 91
Sat 5/2
Sat 5/9
1 adult, Economy
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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 April 2, 2026.

This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/141:22 pm
BOI
-
AUS
1 stop5h 56m
Frontier
Mon 5/189:13 pm
AUS
-
BOI
1 stop16h 14m
Frontier
Deal found 4/1$171
This CheapOair deal was found by Cheapflights users on 3/29. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1212:03 pm
BOI
-
AUS
1 stop21h 02m
Frontier
Wed 4/156:13 pm
AUS
-
BOI
1 stop17h 55m
Frontier
Deal found 3/29$211
This CheapOair deal was found by Cheapflights users on 4/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:22 pm
BOI
-
AUS
1 stop5h 56m
Frontier
Wed 5/209:13 pm
AUS
-
BOI
1 stop16h 17m
Frontier
Deal found 4/1$216
This Frontier deal was found by Cheapflights users on 3/29. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/912:03 pm
BOI
-
AUS
1 stop11h 18m
Frontier
Sun 4/126:45 am
AUS
-
BOI
1 stop5h 23m
Frontier
Deal found 3/29$230
This Frontier deal was found by Cheapflights users on 3/30. 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 4/212:03 pm
BOI
-
AUS
1 stop11h 18m
Frontier
Thu 4/96:45 am
AUS
-
BOI
1 stop5h 23m
Frontier
Deal found 3/30$260
This CheapOair deal was found by Cheapflights users on 3/31. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/141:04 pm
BOI
-
AUS
1 stop19h 09m
Frontier
Sat 6/209:58 am
AUS
-
BOI
1 stop27h 11m
Frontier
Deal found 3/31$261
This Frontier deal was found by Cheapflights users on 3/30. 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 4/212:03 pm
BOI
-
AUS
1 stop11h 18m
Frontier
Sun 4/56:45 am
AUS
-
BOI
1 stop5h 23m
Frontier
Deal found 3/30$270
This Expedia deal was found by Cheapflights users on 3/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:22 pm
BOI
-
AUS
1 stop5h 56m
Multiple Airlines
Tue 5/198:30 am
AUS
-
BOI
1 stop8h 04m
Multiple Airlines
Deal found 3/28$277

Find 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 April 2, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$171
(CheapOair)

One-way from

$80
(Priceline)

Popular in

March

Cheapest in

January

Average price

$361
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. 13% potential increase in price ($57 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($10 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
Search Deals

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 April 2, 2026.
Use the filters below to find and compare flights from Boise to Austin that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 5/4

7:43 am-12:47 pm

1 stop28h 04m

Austin Bergstrom

Sat 5/9

4:34 pm-11:02 pm

1 stop7h 28m

$283

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 5/5

7:43 am-7:19 pm

1 stop10h 36m

Austin Bergstrom

Wed 5/6

6:00 am-12:32 pm

1 stop7h 32m

$283

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 4/28

6:15 am-1:08 pm

1 stop5h 53m

Austin Bergstrom

Tue 5/5

8:45 am-4:46 pm

1 stop9h 01m

$317
Quickest round-trip

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 4/28

4:38 pm-12:24 am

1 stop6h 46m

Austin Bergstrom

Wed 4/29

5:49 pm-11:59 pm

1 stop7h 10m

$317

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 4/22

5:40 am-1:25 pm

1 stop6h 45m

Austin Bergstrom

Thu 4/23

6:00 am-1:12 pm

1 stop8h 12m

$345

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 5/4

12:05 pm-9:15 pm

2 stops8h 10m

Austin Bergstrom

Sat 5/9

8:45 am-4:15 pm

2 stops8h 30m

$355

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 4/23

1:52 pm-11:48 pm

1 stop8h 56m

Austin Bergstrom

Sun 4/26

6:00 am-1:12 pm

1 stop8h 12m

$410
Cheapest one-way
Quickest one-way

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 7/23

1:04 pm-7:30 pm

1 stop5h 26m

$125

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 4/22

6:15 am-1:08 pm

1 stop5h 53m

$159

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 4/28

9:26 am-6:14 pm

1 stop7h 48m

$159

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/1

Showing 1-10 of 18 resultsSorted by cheapest first
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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapTicketsDealPrice Accuracy3 starsTrust Score*3 stars
PricelinePrice Accuracy1 starTrust 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 April 2, 2026.

The best time to book flights from Boise to Austin is 88 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, July is the cheapest month in which you can book a flight from Boise to Austin (average of $131). Flying from Boise to Austin in March is currently the most expensive (average of $276). 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.

How much does it cost to fly round-trip from Boise to Austin?

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 April 2, 2026.
Peruse reviews from past customers who have flown with Southwest,Delta, andUnited 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
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Southwest
8.0
Very good
4,337 reviews
Southwest
8.0
Very good
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Delta
7.9
Good
8,370 reviews
Southwest
8.0
Very good
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
United Airlines
7.4
Good
9,533 reviews
Southwest
8.0
Very good
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
American Airlines
7.1
Good
11,549 reviews
Southwest
8.0
Very good
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.
Frontier
5.7
Fair
3,004 reviews
Southwest
8.0
Very good
4,337 reviews

Comfort

8.0

Overall

8.0

Entertainment

7.5

Food

7.0

Boarding

8.1

Crew

8.6

Reviews

1 / 20
2.0
Mediocre

Dominic,Mar 2026

MCO - SMF

I had to try and sleep on the floor of the Austin airport. I spent 12 hours there. The airline policies were so poor, that a near violent argument broke out between the people in front of me and the flight attendants - making for a super stressful situation at 30,000 feet. Garbage airline choice by Kayak Garbage idea to book a flight with a layover. Next time I will pay for a quality booking myself, and somehow force the company to reimburse it.

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 5h 53m. Fly via Alaska Airlines 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 Delta is currently your cheapest option to Austin, with prices starting at $145. Additional round-trip tickets that might be worth considering are offered by Frontier and Southwest, with the lowest prices starting at $164 and $216, respectively. Delta is priced at 60% 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 $129 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, July is the cheapest month in which you can book a flight from Boise to Austin (average of $131). Flying from Boise to Austin in March is currently the most expensive (average of $276). 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
San Marcos
Round Rock
Fredericksburg
Pflugerville
Georgetown
Bastrop
Dripping Springs
Seguin
Canyon Lake
Horseshoe Bay

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

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 April 2, 2026.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$145Average$324FlexibilityNo cancel feeOn-timeN/A
FrontierCheapest$164Average$248FlexibilityNo cancel feeOn-time62%
SouthwestCheapest$216Average$397FlexibilityNo cancel feeOn-time63%
Alaska AirlinesCheapest$250Average$468FlexibilityNo cancel feeOn-time75%
United AirlinesCheapest$271Average$412FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$278Average$338FlexibilityNo cancel feeOn-time71%

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