$67+ 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 2/12. Fares are subject to change and may not be available on all flights or dates of travel.
BOI — AUS
Feb 15 — Feb 221
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 January 16, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $133 (Kiwi.com) |
One-way from | $67 (Kiwi.com) |
Popular in | March |
Cheapest in | September |
Average price | $296 |
Find flight deals from Boise to Austin
Cheapest flights from Boise to AustinExplore 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 January 16, 2026.
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 January 16, 2026.
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1212:36 pm
BOI
- AUS
1 stop10h 40m
Frontier
Thu 2/196:45 am
AUS
- BOI
1 stop6h 06m
Frontier
Deal found 1/15![Frontier logo]()
$133
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
- AUS
1 stop10h 40m
Frontier
Sat 2/216:45 am
AUS
- BOI
1 stop29h 26m
Frontier
Deal found 1/14![Frontier logo]()
$146
This Frontier deal was found by Cheapflights users on 1/16. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/912:07 pm
BOI
- AUS
1 stop11h 09m
Frontier
Wed 2/188:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Deal found 1/16![Frontier logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
- AUS
1 stop10h 40m
Frontier
Wed 2/258:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Deal found 1/14![Frontier logo]()
$170
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1311:56 am
BOI
- AUS
1 stop11h 26m
Frontier
Fri 2/203:30 pm
AUS
- BOI
2 stops44h 41m
Frontier
Deal found 1/14![Frontier logo]()
$186
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1912:36 pm
BOI
- AUS
2 stops27h 58m
Frontier
Thu 2/266:45 am
AUS
- BOI
1 stop6h 06m
Frontier
Deal found 1/14![Frontier logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2211:56 am
BOI
- AUS
1 stop20h 25m
Frontier
Thu 2/266:45 am
AUS
- BOI
1 stop6h 06m
Frontier
Deal found 1/14![Frontier logo]()
$192
This Kiwi.com deal was found by Cheapflights users on 1/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2612:38 pm
BOI
- AUS
1 stop10h 38m
Frontier
Sat 2/283:57 pm
AUS
- BOI
2 stops20h 14m
Frontier
Deal found 1/14![Frontier logo]()
$193
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1212:36 pm
BOI
- AUS
1 stop10h 40m
Multiple Airlines
Thu 2/1912:24 pm
AUS
- BOI
2 stops29h 27m
Multiple Airlines
Deal found 1/15![Multiple Airlines logo]()
$200
This Frontier deal was found by Cheapflights users on 1/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/91:30 pm
BOI
- AUS
1 stop9h 44m
Frontier
Sun 4/126:45 am
AUS
- BOI
1 stop6h 38m
Frontier
Deal found 1/14![Frontier logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 1/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/2211:56 am
BOI
- AUS
1 stop20h 25m
Frontier
Wed 2/258:30 am
AUS
- BOI
1 stop28h 21m
Frontier
Deal found 1/15![Frontier logo]()
$219
This Mytrip deal was found by Cheapflights users on 1/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/212:07 pm
BOI
- AUS
1 stop11h 09m
Frontier
Sun 2/88:15 pm
AUS
- BOI
1 stop15h 57m
Frontier
Deal found 1/15![Frontier logo]()
$225
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 January 16, 2026.
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
Mon 2/9
12:07 pm-12:16 am
1 stop11h 09m
Austin Bergstrom
Wed 2/18
8:30 am-11:51 am
1 stop28h 21m
$155
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Thu 2/12
12:36 pm-12:16 am
1 stop10h 40m
Austin Bergstrom
Thu 2/19
12:24 pm-4:51 pm
2 stops29h 27m
$200
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Mon 2/2
12:07 pm-12:16 am
1 stop11h 09m
Austin Bergstrom
Sun 2/8
8:15 pm-11:12 am
1 stop15h 57m
$225
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Sat 2/21
5:50 am-4:00 pm
1 stop9h 10m
Austin Bergstrom
Tue 2/24
6:15 am-1:58 pm
1 stop8h 43m
$237
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 4/7
6:15 am-2:36 pm
1 stop7h 21m
Austin Bergstrom
Tue 4/14
2:10 pm-8:13 pm
1 stop7h 03m
$237
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Wed 2/18
5:35 am-1:55 pm
1 stop7h 20m
Austin Bergstrom
Wed 2/25
6:10 am-1:11 pm
1 stop8h 01m
$237
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Wed 3/25
2:40 pm-9:06 pm
1 stop5h 26m
Austin Bergstrom
Tue 3/31
4:43 pm-9:22 pm
1 stop5h 39m
$237
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 2/17
7:30 am-4:00 pm
1 stop7h 30m
Austin Bergstrom
Wed 2/25
6:15 am-1:59 pm
1 stop8h 44m
$237
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 2/17
1:51 pm-11:56 pm
1 stop9h 05m
Austin Bergstrom
Thu 2/26
4:55 pm-11:45 pm
1 stop7h 50m
$271
BoiseAustin
BOI - AUS
BOIAUS
Boise Air Term. Gowen Fld
Tue 4/14
7:24 am-5:07 pm
1 stop8h 43m
Austin Bergstrom
Mon 4/20
6:50 pm-11:57 pm
1 stop6h 07m
$271
Showing 1-10 of 21 results
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 January.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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 January 9, 2026.
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 $96). Flying from Boise to Austin in August 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.
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 January 16, 2026.
Peruse reviews from past customers who have flown with Southwest, Delta, and United 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.
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Food
7.0
Boarding
8.1
Comfort
8.0
Crew
8.6
Entertainment
7.5
Overall
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
Traveling to a place near Austin?
Book flights to Austin if you plan to visit one of these locationsCedar Park
Fredericksburg
Round Rock
San Marcos
Georgetown
Pflugerville
Dripping Springs
Canyon Lake
Seguin
Horseshoe Bay
Browse thousands of different options on Cheapflights for your next trip
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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.
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 January 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$164 | Average$248 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$185 | Average$337 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$216 | Average$385 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$250 | Average$478 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$275 | Average$352 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$276 | Average$415 | FlexibilityNo cancel fee | On-time69% |