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

Frontier, American Airlines, and Delta are the most popular carriers operating from Idaho to Austin Bergstrom

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 37% of people opting to fly with this airline when traveling to Austin. Keep in mind that there are 6 different airlines that fly to Austin on a routine basis, so you have a few additional options to choose from.

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 40m on average. If you fly from Boise (another popular airport in Idaho) to Austin, then the average flight time is 4h 58m.

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 6 as of November 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.

$132 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

Enter your travel dates to find the best prices.

12:44 pm - 12:14 amBOI-AUS

10h 30m1 stop

6:55 am - 11:49 amAUS-BOI

5h 54m1 stop

$138Frontier

Find Deal

Sun, Dec 7 - Sun, Dec 14

12:08 pm - 12:14 amGEG-AUS

10h 06m1 stop

12:23 pm - 5:02 pmAUS-GEG

6h 39m1 stop

$138Frontier

Find Deal

Sun, Dec 7 - Sun, Dec 14

12:25 pm - 10:55 pmGEG-AUS

8h 30m1 stop

6:55 am - 11:13 amAUS-GEG

6h 18m1 stop

$210Multiple Airlines

Find Deal

Mon, Dec 8 - Thu, Dec 11

2:58 pm - 11:45 amBOI-AUS

19h 47m2 stops

8:45 am - 11:59 amAUS-BOI

28h 14m1 stop

$211Multiple Airlines

Find Deal

Thu, Jan 8 - Sat, Jan 10

9:00 am - 11:59 pmGEG-AUS

12h 59m1 stop

7:26 pm - 12:24 amAUS-GEG

6h 58m1 stop

$244Alaska Airlines

Find Deal

Sat, Dec 6 - Sat, Dec 13

6:05 am - 8:58 pmGEG-AUS

12h 53m2 stops

6:05 am - 12:29 pmAUS-GEG

8h 24m1 stop

$261Delta

Find Deal

Sat, Dec 6 - Sat, Dec 13

9:05 am - 5:59 pmGEG-AUS

6h 54m1 stop

7:15 am - 11:04 pmAUS-GEG

17h 49m1 stop

$264Alaska Airlines

Find Deal

Sat, Jan 17 - Tue, Jan 20

3:40 pm - 4:00 pmGEG-AUS

22h 20m1 stop

4:55 pm - 10:52 pmAUS-GEG

7h 57m1 stop

$265Delta

Find Deal

Fri, Jan 16 - Tue, Jan 20

12:37 pm - 7:44 pmBOI-AUS

6h 07m1 stop

6:00 am - 5:07 pmAUS-BOI

12h 07m1 stop

$283American Airlines

Find Deal

Thu, Jan 15 - Tue, Jan 20

1:14 pm - 11:49 pmGEG-AUS

8h 35m1 stop

8:00 am - 12:30 pmAUS-GEG

6h 30m1 stop

$564American Airlines

Find Deal

Sat, Nov 22 - Thu, Nov 27

Frontier flights from Idaho to Austin

Our best Frontier deals on Idaho to Austin flight tickets

Frontier

Dec 7

BOI12:44 pmBoise Air Term. Gowen Fld

10h 30m

1 stop

AUS12:14 amAustin Bergstrom

Dec 14

AUS6:55 amAustin Bergstrom

5h 54m

1 stop

BOI11:49 amBoise Air Term. Gowen Fld

$138

Find similar

Frontier

Nov 24

BOI8:54 pmBoise Air Term. Gowen Fld

11h 57m

1 stop

AUS9:51 amAustin Bergstrom

Nov 28

AUS6:45 amAustin Bergstrom

6h 08m

1 stop

BOI11:53 amBoise Air Term. Gowen Fld

$144

Find similar

Frontier

Dec 11

BOI12:44 pmBoise Air Term. Gowen Fld

10h 30m

1 stop

AUS12:14 amAustin Bergstrom

Dec 14

AUS6:55 amAustin Bergstrom

5h 54m

1 stop

BOI11:49 amBoise Air Term. Gowen Fld

$172

Find similar

Alaska Airlines flights from Idaho to Austin

Our best Alaska Airlines deals on Idaho to Austin flight tickets

Alaska Airlines

Dec 6

GEG9:00 amSpokane

12h 59m

1 stop

AUS11:59 pmAustin Bergstrom

Dec 13

AUS7:26 pmAustin Bergstrom

6h 58m

1 stop

GEG12:24 amSpokane

$244

Find similar

Alaska Airlines

Jan 17

GEG9:05 amSpokane

6h 54m

1 stop

AUS5:59 pmAustin Bergstrom

Jan 20

AUS7:15 amAustin Bergstrom

17h 49m

1 stop

GEG11:04 pmSpokane

$264

Find similar

Alaska Airlines

Dec 8

BOI6:03 amBoise Air Term. Gowen Fld

8h 17m

1 stop

AUS3:20 pmAustin Bergstrom

Dec 10

AUS7:15 amAustin Bergstrom

9h 11m

1 stop

BOI3:26 pmBoise Air Term. Gowen Fld

$268

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 12/7

12:44 pm-12:14 am

1 stop10h 30m

Austin Bergstrom

Sun 12/14

6:55 am-11:49 am

1 stop5h 54m

$138

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sun 12/7

12:08 pm-12:14 am

1 stop10h 06m

Austin Bergstrom

Sun 12/14

12:23 pm-5:02 pm

1 stop6h 39m

$138

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Mon 12/8

12:25 pm-10:55 pm

1 stop8h 30m

Austin Bergstrom

Thu 12/11

6:55 am-11:13 am

1 stop6h 18m

$210

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 1/8

2:58 pm-11:45 am

2 stops19h 47m

Austin Bergstrom

Sat 1/10

8:45 am-11:59 am

1 stop28h 14m

$211

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 12/6

9:00 am-11:59 pm

1 stop12h 59m

Austin Bergstrom

Sat 12/13

7:26 pm-12:24 am

1 stop6h 58m

$244

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 12/6

6:05 am-8:58 pm

2 stops12h 53m

Austin Bergstrom

Sat 12/13

6:05 am-12:29 pm

1 stop8h 24m

$261

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 1/17

9:05 am-5:59 pm

1 stop6h 54m

Austin Bergstrom

Tue 1/20

7:15 am-11:04 pm

1 stop17h 49m

$264

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Fri 1/16

3:40 pm-4:00 pm

1 stop22h 20m

Austin Bergstrom

Tue 1/20

4:55 pm-10:52 pm

1 stop7h 57m

$265

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Thu 1/15

12:37 pm-7:44 pm

1 stop6h 07m

Austin Bergstrom

Tue 1/20

6:00 am-5:07 pm

1 stop12h 07m

$283

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Sat 11/22

1:14 pm-11:49 pm

1 stop8h 35m

Austin Bergstrom

Thu 11/27

8:00 am-12:30 pm

1 stop6h 30m

$564

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 $282, 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 $300.

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 $383 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 $274 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 6 as of November 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
Frontier	PriceFrom $189	Free Cancellation	Rating 5.8 3,111 reviews	Search Frontier flights
Delta	PriceFrom $204	Free Cancellation	Rating 7.9 8,003 reviews	Search Delta flights
Alaska Airlines	PriceFrom $250	Free Cancellation	Rating 8.0 11,260 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $268	Free Cancellation	Rating 8.0 4,236 reviews	Search Southwest flights
American Airlines	PriceFrom $275	Free Cancellation	Rating 7.2 11,047 reviews	Search American Airlines flights
United Airlines	PriceFrom $276	Free Cancellation	Rating 7.4 9,011 reviews	Search United Airlines flights

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San Marcos

Round Rock

Georgetown

Canyon Lake

Marble Falls

Cedar Park

Horseshoe Bay

Dripping Springs

Seguin

Pflugerville

Kyle

Bastrop

Buda

Flatonia

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.