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

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

What airlines fly to Idaho?

Delta, United Airlines and Southwest are the top three most popular airlines that fly to Idaho from Austin according to our data. Delta is the first choice among our users, with 32% of people opting to fly with this airline when traveling to Idaho. Keep in mind that there are 6 different airlines that fly to Idaho on a routine basis, so you have a few additional options to choose from.

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

Prices for flights from Austin Bergstrom Airport to Idaho refresh daily.

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

As of October 2026, there are 6 operators available to choose from for flights from Austin Bergstrom Airport to Idaho.

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

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 Austin Bergstrom Airport to Idaho.

What documentation or ID do you need to fly to Idaho?

The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

$81 Cheap Flights from Austin to Idaho in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Austin to Idaho

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

10:59 pm - 7:00 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

21h 01m1 stop Las Vegas Harry Reid Intl

9:51 pm - 9:56 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

23h 05m1 stop Las Vegas Harry Reid Intl

$120Frontier

Tue, Nov 24 - Mon, Dec 14

10:50 pm - 8:54 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

23h 04m1 stop Las Vegas Harry Reid Intl

9:51 pm - 9:56 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

23h 05m1 stop Las Vegas Harry Reid Intl

$176Frontier

Wed, Dec 2 - Thu, Dec 10

4:05 pm - 10:58 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

7h 53m1 stop Los Angeles

11:34 am - 5:14 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

4h 40m1 stop Salt Lake City

$205Delta

Thu, Dec 3 - Thu, Dec 10

6:09 pm - 12:26 amAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

7h 17m1 stop Salt Lake City

11:34 am - 5:14 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

4h 40m1 stop Salt Lake City

$205Delta

Wed, Dec 2 - Thu, Dec 10

6:00 pm - 10:35 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

5h 35m1 stop Denver Intl

2:45 pm - 8:45 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

5h 00m1 stop Denver Intl

$205Southwest

Wed, Nov 11 - Sat, Nov 14

8:00 pm - 12:50 amAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

5h 50m1 stop Phoenix Sky Harbor Intl

1:05 pm - 9:10 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

7h 05m1 stop Denver Intl

$205Southwest

Fri, Dec 11 - Mon, Dec 14

7:15 am - 1:09 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

6h 54m1 stop Portland

4:20 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

6h 39m1 stop Portland

$205Alaska Airlines

Wed, Dec 2 - Mon, Dec 7

7:15 am - 1:15 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

7h 00m1 stop Portland

4:20 pm - 11:59 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

6h 39m1 stop Portland

$205Alaska Airlines

Sat, Dec 5 - Sat, Dec 12

10:50 pm - 3:15 pmAUS Austin Bergstrom-IDA Idaho Falls Fanning Field

17h 25m1 stop Las Vegas Harry Reid Intl

7:58 pm - 9:56 pmIDA Idaho Falls Fanning Field-AUS Austin Bergstrom

24h 58m1 stop Las Vegas Harry Reid Intl

$205Multiple Airlines

Wed, Dec 2 - Mon, Dec 14

11:02 am - 3:15 pmAUS Austin Bergstrom-IDA Idaho Falls Fanning Field

29h 13m2 stops Atlanta Hartsfield-Jackson Las Vegas Harry Reid Intl

7:58 pm - 9:56 pmIDA Idaho Falls Fanning Field-AUS Austin Bergstrom

24h 58m1 stop Las Vegas Harry Reid Intl

$248Multiple Airlines

Wed, Dec 2 - Mon, Dec 14

Cheap last minute flights

Enter your travel dates to find the best prices.

1:12 pm - 1:55 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

25h 43m1 stop Las Vegas Harry Reid Intl

2:50 pm - 12:17 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

20h 27m1 stop Las Vegas Harry Reid Intl

$430Frontier

Wed, Oct 14 - Fri, Oct 16

1:12 pm - 1:55 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

25h 43m1 stop Las Vegas Harry Reid Intl

2:50 pm - 12:17 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

20h 27m1 stop Las Vegas Harry Reid Intl

$445Frontier

Sat, Oct 10 - Mon, Oct 12

8:15 am - 12:20 pmAUS Austin Bergstrom-SUN Hailey Sun Valley-Friedman

5h 05m1 stop Salt Lake City

1:00 pm - 9:42 pmSUN Hailey Sun Valley-Friedman-AUS Austin Bergstrom

7h 42m1 stop Salt Lake City

$559Delta

Tue, Oct 13 - Wed, Oct 21

8:15 am - 2:35 pmAUS Austin Bergstrom-SUN Hailey Sun Valley-Friedman

7h 20m1 stop Salt Lake City

1:00 pm - 11:57 pmSUN Hailey Sun Valley-Friedman-AUS Austin Bergstrom

9h 57m2 stops Salt Lake City Los Angeles

$564Delta

Tue, Oct 13 - Wed, Oct 21

11:20 am - 6:25 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

8h 05m1 stop Phoenix Sky Harbor Intl

2:25 pm - 9:40 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

6h 15m1 stop Denver Intl

$599Southwest

Wed, Oct 14 - Sat, Oct 17

9:45 am - 4:00 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

7h 15m1 stop Las Vegas Harry Reid Intl

6:00 am - 3:35 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

8h 35m2 stops Las Vegas Harry Reid Intl Houston Hobby

$604Southwest

Wed, Oct 14 - Sat, Oct 17

10:12 pm - 12:40 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

15h 28m1 stop Phoenix Sky Harbor Intl

2:50 pm - 9:27 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

29h 37m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$641Multiple Airlines

Sun, Oct 11 - Sun, Oct 18

5:46 pm - 10:29 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

5h 43m1 stop Dallas/Fort Worth

5:29 pm - 11:51 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

5h 22m1 stop Phoenix Sky Harbor Intl

$671American Airlines

Mon, Oct 12 - Thu, Oct 15

4:29 pm - 10:29 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

7h 00m1 stop Dallas/Fort Worth

6:17 am - 1:23 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

6h 06m1 stop Phoenix Sky Harbor Intl

$671American Airlines

Mon, Oct 12 - Thu, Oct 15

10:03 am - 12:40 pmAUS Austin Bergstrom-BOI Boise Air Term. Gowen Fld

27h 37m1 stop Phoenix Sky Harbor Intl

2:50 pm - 9:27 pmBOI Boise Air Term. Gowen Fld-AUS Austin Bergstrom

29h 37m2 stops Las Vegas Harry Reid Intl Phoenix Sky Harbor Intl

$707Multiple Airlines

Thu, Oct 15 - Sun, Oct 18

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Southwest flights from Austin to Idaho

Our best Southwest deals on Austin to Idaho flight tickets

Southwest

Dec 3

AUS4:00 pmAustin Bergstrom

7h 35m

1 stop

BOI10:35 pmBoise Air Term. Gowen Fld

Dec 10

BOI11:40 amBoise Air Term. Gowen Fld

5h 00m

1 stop

AUS5:40 pmAustin Bergstrom

$205

Southwest

Dec 2

AUS5:05 pmAustin Bergstrom

5h 35m

1 stop

BOI9:40 pmBoise Air Term. Gowen Fld

Dec 9

BOI6:20 amBoise Air Term. Gowen Fld

5h 30m

1 stop

AUS12:50 pmAustin Bergstrom

$206

Southwest

Nov 6

AUS7:35 pmAustin Bergstrom

6h 55m

2 stops

BOI1:30 amBoise Air Term. Gowen Fld

Nov 9

BOI3:55 pmBoise Air Term. Gowen Fld

7h 15m

1 stop

AUS12:10 amAustin Bergstrom

$210

Delta flights from Austin to Idaho

Our best Delta deals on Austin to Idaho flight tickets

Delta

Oct 29

AUS4:25 pmAustin Bergstrom

7h 39m

1 stop

BOI11:04 pmBoise Air Term. Gowen Fld

Nov 5

BOI4:00 pmBoise Air Term. Gowen Fld

6h 05m

1 stop

AUS11:05 pmAustin Bergstrom

$298

Delta

Nov 11

AUS6:09 pmAustin Bergstrom

7h 01m

1 stop

BOI12:10 amBoise Air Term. Gowen Fld

Nov 15

BOI6:40 amBoise Air Term. Gowen Fld

9h 34m

1 stop

AUS5:14 pmAustin Bergstrom

$302

Delta

Oct 31

AUS6:05 pmAustin Bergstrom

5h 15m

1 stop

TWF10:20 pmTwin Falls Joslin

Nov 3

TWF1:17 pmTwin Falls Joslin

7h 25m

1 stop

AUS9:42 pmAustin Bergstrom

$314

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Tue 11/24

10:59 pm-7:00 pm

1 stop21h 01m

Boise Air Term. Gowen Fld

Mon 12/14

9:51 pm-9:56 pm

1 stop23h 05m

$120

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Wed 12/2

10:50 pm-8:54 pm

1 stop23h 04m

Boise Air Term. Gowen Fld

Thu 12/10

9:51 pm-9:56 pm

1 stop23h 05m

$176

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Thu 12/3

4:05 pm-10:58 pm

1 stop7h 53m

Boise Air Term. Gowen Fld

Thu 12/10

11:34 am-5:14 pm

1 stop4h 40m

$205

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Wed 12/2

6:09 pm-12:26 am

1 stop7h 17m

Boise Air Term. Gowen Fld

Thu 12/10

11:34 am-5:14 pm

1 stop4h 40m

$205

Quickest round-trip

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Wed 11/11

6:00 pm-10:35 pm

1 stop5h 35m

Boise Air Term. Gowen Fld

Sat 11/14

2:45 pm-8:45 pm

1 stop5h 00m

$205

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Fri 12/11

8:00 pm-12:50 am

1 stop5h 50m

Boise Air Term. Gowen Fld

Mon 12/14

1:05 pm-9:10 pm

1 stop7h 05m

$205

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Wed 12/2

7:15 am-1:09 pm

1 stop6h 54m

Boise Air Term. Gowen Fld

Mon 12/7

4:20 pm-11:59 pm

1 stop6h 39m

$205

AustinBoise

AUS Austin Bergstrom - BOI Boise Air Term. Gowen Fld

AUSBOI

Austin Bergstrom

Sat 12/5

7:15 am-1:15 pm

1 stop7h 00m

Boise Air Term. Gowen Fld

Sat 12/12

4:20 pm-11:59 pm

1 stop6h 39m

$205

AustinIdaho Falls

AUS Austin Bergstrom - IDA Idaho Falls Fanning Field

AUSIDA

Austin Bergstrom

Wed 12/2

10:50 pm-3:15 pm

1 stop17h 25m

Idaho Falls Fanning Field

Mon 12/14

7:58 pm-9:56 pm

1 stop24h 58m

$205

AustinIdaho Falls

AUS Austin Bergstrom - IDA Idaho Falls Fanning Field

AUSIDA

Austin Bergstrom

Wed 12/2

11:02 am-3:15 pm

2 stops29h 13m

Idaho Falls Fanning Field

Mon 12/14

7:58 pm-9:56 pm

1 stop24h 58m

$248

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 Austin to Idaho

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

What is the cheapest month to fly to Idaho?

In general, February is the cheapest month to fly from Austin to Idaho. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $301. If you don’t want to visit Idaho in February, then you should wait until January to fly from Austin, when ticket prices are also cheap, with an average price of $314.

Cheap Austin to Idaho flight deals and tips

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

Best Price Found	$81
Fastest flight time	4h 53m
Direct flights	None

The best one-way flight to Idaho from Austin in the past 72 hours is $81. The best round-trip flight deal from Austin to Idaho found on momondo in the last 72 hours is $120.

The fastest flight from Austin to Idaho takes 4h 53m

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

Search flight deals

Frequently asked questions about flying from Austin to Idaho

When did momondo last update prices for flights from Austin Bergstrom Airport to Idaho?
Prices for flights from Austin Bergstrom Airport to Idaho refresh daily.
How many operators does momondo search for flights from Austin Bergstrom Airport to Idaho?
As of October 2026, there are 6 operators available to choose from for flights from Austin Bergstrom Airport to Idaho.
How old do you have to be to fly from Austin Bergstrom Airport to Idaho?
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 Austin Bergstrom Airport to Idaho.
What documentation or ID do you need to fly to Idaho?
The necessary travel and health documents for your Idaho trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

Best airlines flying from Austin to Idaho

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

Airline	Rating	Free Cancellation	Price
Frontier	PriceFrom $78	Free Cancellation	Rating 5.6 2,552 reviews	Search Frontier flights
Delta	PriceFrom $145	Free Cancellation	Rating 7.8 8,653 reviews	Search Delta flights
American Airlines	PriceFrom $216	Free Cancellation	Rating 7.0 12,150 reviews	Search American Airlines flights
United Airlines	PriceFrom $237	Free Cancellation	Rating 7.4 10,332 reviews	Search United Airlines flights
Alaska Airlines	PriceFrom $237	Free Cancellation	Rating 7.9 13,043 reviews	Search Alaska Airlines flights
Southwest	PriceFrom $276	Free Cancellation	Rating 7.9 4,227 reviews	Search Southwest flights

Why use momondo?

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

It is quick and easy to find Austin to Idaho flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Idaho that suits you.

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

Flights from Austin to Idaho 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 Austin to Idaho?

Once you have performed a search for Austin to Idaho flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

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