What airlines fly to Austin?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Austin from Idaho according to our data. Delta is the first choice among our users, with 35% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 7 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Idaho to Austin Bergstrom?

Frontier, Alaska Airlines, and Southwest are the most popular carriers operating from Idaho to Austin Bergstrom

How long does it take to fly to Austin?

The flight from Idaho to Austin depends on which airports you’re departing and arriving from and whether or not you have a layover. If you fly from Twin Falls (a popular airport in Idaho) to Austin (the most popular airport in Austin), then the flight time is 4h 35m on average. If you fly from Boise (another popular airport in Idaho) to Austin, then the average flight time is 4h 50m.

When did momondo last update prices for flights from Idaho to Austin Bergstrom Airport?

Prices for flights from Idaho to Austin Bergstrom Airport are updated daily.

How many operators does momondo search for flights from Idaho to Austin Bergstrom Airport?

The number of operators available for flights from Idaho to Austin Bergstrom Airport is 7 as of September 2025.

How old do you have to be to fly from Idaho to Austin Bergstrom Airport?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Austin Bergstrom Airport.

What documentation or ID do you need to fly to Austin Bergstrom Airport?

The travel and health documents you'll need for your trip to Austin Bergstrom Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Austin Bergstrom Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$100 Cheap Flights from Idaho to Austin in 2025/26

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Find the cheapest flights from Idaho to Austin

Round-trip

One-way

Last minute

Cheap round-trip flights

12:28 pm - 12:33 amBOI-AUS

11h 05m1 stop

6:00 am - 11:43 amAUS-BOI

6h 43m1 stop

$143Frontier

Find Deal

Thu, Oct 16 - Sun, Oct 19

12:28 pm - 9:52 pmBOI-AUS

8h 24m1 stop

6:00 am - 11:43 amAUS-BOI

6h 43m1 stop

$172Frontier

Find Deal

Fri, Oct 24 - Sun, Oct 26

12:03 pm - 12:33 amGEG-AUS

10h 30m1 stop

10:11 am - 5:48 pmAUS-GEG

33h 37m2 stops

$273Multiple Airlines

Find Deal

Thu, Oct 23 - Sun, Oct 26

2:31 pm - 8:45 pmBOI-AUS

5h 14m1 stop

7:30 am - 1:30 pmAUS-BOI

7h 00m1 stop

$277United Airlines

Find Deal

Wed, Oct 29 - Wed, Nov 5

1:25 pm - 11:59 pmBOI-AUS

9h 34m1 stop

7:15 am - 7:36 pmAUS-BOI

13h 21m1 stop

$278Alaska Airlines

Find Deal

Wed, Dec 10 - Sat, Dec 13

4:40 pm - 10:40 pmBOI-AUS

5h 00m1 stop

5:10 pm - 11:10 pmAUS-BOI

7h 00m2 stops

$282Southwest

Find Deal

Wed, Oct 29 - Wed, Nov 5

7:00 pm - 4:54 amBOI-AUS

8h 54m1 stop

6:00 am - 1:44 pmAUS-BOI

8h 44m1 stop

$287United Airlines

Find Deal

Mon, Oct 27 - Wed, Nov 5

8:50 am - 6:18 pmBOI-AUS

8h 28m1 stop

7:40 am - 3:34 pmAUS-BOI

8h 54m1 stop

$292Alaska Airlines

Find Deal

Wed, Nov 12 - Fri, Nov 21

6:00 am - 5:05 pmBOI-AUS

10h 05m2 stops

5:50 am - 10:20 amAUS-BOI

5h 30m1 stop

$308Southwest

Find Deal

Sat, Dec 13 - Mon, Jan 19

12:28 pm - 12:33 amBOI-AUS

11h 05m1 stop

12:27 pm - 2:07 pmAUS-BOI

26h 40m2 stops

$344Multiple Airlines

Find Deal

Fri, Oct 24 - Sun, Oct 26

Delta flights from Idaho to Austin

Our best Delta deals on Idaho to Austin flight tickets

Delta

Dec 13

BOI1:54 pmBoise Air Term. Gowen Fld

8h 57m

1 stop

AUS11:51 pmAustin Bergstrom

Jan 19

AUS5:10 amAustin Bergstrom

6h 14m

1 stop

BOI10:24 amBoise Air Term. Gowen Fld

$297

Find similar

Delta

Oct 22

JAC6:55 pmJackson Hole

4h 28m

1 stop

AUS12:23 amAustin Bergstrom

Oct 29

AUS8:10 amAustin Bergstrom

4h 55m

1 stop

JAC12:05 pmJackson Hole

$303

Find similar

Delta

Oct 17

GEG6:20 amSpokane

6h 50m

1 stop

AUS3:10 pmAustin Bergstrom

Oct 18

AUS6:16 amAustin Bergstrom

6h 20m

1 stop

GEG10:36 amSpokane

$309

Find similar

United Airlines flights from Idaho to Austin

Our best United Airlines deals on Idaho to Austin flight tickets

United Airlines

Oct 29

BOI2:31 pmBoise Air Term. Gowen Fld

5h 14m

1 stop

AUS8:45 pmAustin Bergstrom

Nov 5

AUS7:30 amAustin Bergstrom

7h 00m

1 stop

BOI1:30 pmBoise Air Term. Gowen Fld

$277

Find similar

United Airlines

Oct 27

BOI7:00 pmBoise Air Term. Gowen Fld

8h 54m

1 stop

AUS4:54 amAustin Bergstrom

Nov 5

AUS6:00 amAustin Bergstrom

8h 44m

1 stop

BOI1:44 pmBoise Air Term. Gowen Fld

$287

Find similar

United Airlines

Oct 18

BOI7:45 amBoise Air Term. Gowen Fld

7h 46m

1 stop

AUS4:31 pmAustin Bergstrom

Oct 25

AUS4:39 pmAustin Bergstrom

8h 03m

2 stops

BOI11:42 pmBoise Air Term. Gowen Fld

$302

Find similar

Fly from

Fly to

Route

Depart

Return

Price

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

$143

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 10/24

12:28 pm-9:52 pm

1 stop8h 24m

Austin Bergstrom

Sun 10/26

6:00 am-11:43 am

1 stop6h 43m

$172

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 10/23

12:03 pm-12:33 am

1 stop10h 30m

Austin Bergstrom

Sun 10/26

10:11 am-5:48 pm

2 stops33h 37m

$273

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 10/29

2:31 pm-8:45 pm

1 stop5h 14m

Austin Bergstrom

Wed 11/5

7:30 am-1:30 pm

1 stop7h 00m

$277

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 12/10

1:25 pm-11:59 pm

1 stop9h 34m

Austin Bergstrom

Sat 12/13

7:15 am-7:36 pm

1 stop13h 21m

$278

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 10/29

4:40 pm-10:40 pm

1 stop5h 00m

Austin Bergstrom

Wed 11/5

5:10 pm-11:10 pm

2 stops7h 00m

$282

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Mon 10/27

7:00 pm-4:54 am

1 stop8h 54m

Austin Bergstrom

Wed 11/5

6:00 am-1:44 pm

1 stop8h 44m

$287

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 11/12

8:50 am-6:18 pm

1 stop8h 28m

Austin Bergstrom

Fri 11/21

7:40 am-3:34 pm

1 stop8h 54m

$292

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 12/13

6:00 am-5:05 pm

2 stops10h 05m

Austin Bergstrom

Mon 1/19

5:50 am-10:20 am

1 stop5h 30m

$308

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Fri 10/24

12:28 pm-12:33 am

1 stop11h 05m

Austin Bergstrom

Sun 10/26

12:27 pm-2:07 pm

2 stops26h 40m

$344

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Idaho to Austin

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

Prices

Airlines

Other information

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Idaho is in September. Flight prices, which tend to average around $303, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in September, then January is your next best option. Flight prices from Idaho to Austin during January average around $330.

What is the cheapest day to depart on your flight to Austin?

The cheapest day to depart on your flight to Austin is on a Wednesday when prices can be found for as low as $321. This is often the case because there is less demand to fly during this day of the week. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Idaho to Austin for around $481.

What is the cheapest time of day to depart on your flight to Austin?

In the evening is the cheapest time of day to fly from Idaho to Austin when you can find flight prices for as low as $348. Flying to Austin in the evening is an ideal time because this is during off-peak travel hours. Flights to Austin are more costly at noon, with an average ticket price of $372. Departure times at noon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight to Austin?

You are more likely to see cheaper flights to Austin from Idaho when booking weeks ahead of your departure date. In general, you can expect to find flights to Austin for around $391 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Austin from Idaho for as low as $294 on momondo.

Cheap Idaho to Austin flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Idaho to Austin

Direct flights	None

There are no direct flights from Idaho to Austin. There are no popular flight routes from Idaho to Austin.

Search flight deals

When did momondo last update prices for flights from Idaho to Austin Bergstrom Airport?
Prices for flights from Idaho to Austin Bergstrom Airport are updated daily.
How many operators does momondo search for flights from Idaho to Austin Bergstrom Airport?
The number of operators available for flights from Idaho to Austin Bergstrom Airport is 7 as of September 2025.
How old do you have to be to fly from Idaho to Austin Bergstrom Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Idaho to Austin Bergstrom Airport.
What documentation or ID do you need to fly to Austin Bergstrom Airport?
The travel and health documents you'll need for your trip to Austin Bergstrom Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Austin Bergstrom Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Idaho to Austin

Compare and see reviews for airlines that fly from Idaho to Austin with momondo

Airline	Rating	Free Cancellation	Price
Spirit Airlines	PriceFrom $82	Free Cancellation	Rating 6.3 8,031 reviews	Search Spirit Airlines flights
Frontier	PriceFrom $189	Free Cancellation	Rating 5.8 3,166 reviews	Search Frontier flights
Delta	PriceFrom $232	Free Cancellation	Rating 7.9 7,971 reviews	Search Delta flights
Alaska Airlines	PriceFrom $245	Free Cancellation	Rating 8.0 10,000 reviews	Search Alaska Airlines flights
American Airlines	PriceFrom $266	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
Southwest	PriceFrom $268	Free Cancellation	Rating 8.0 4,244 reviews	Search Southwest flights
United Airlines	PriceFrom $279	Free Cancellation	Rating 7.4 8,922 reviews	Search United Airlines flights

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Why use momondo?

Why should I use momondo to find a flight deal from Idaho to Austin?

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Austin from Idaho.

Can I find flights from Idaho to Austin with flexible booking policies on momondo?

Flights from Idaho to Austin with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

How can momondo help me find flights from Idaho to Austin?

momondo helps you find the best flight between Idaho and Austin by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Idaho to Austin right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Idaho to Austin flights. All you need is a valid email address and we will do the rest; it is that quick and easy.