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Cheap flights from Idaho to Austin from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Idaho to Austin departing on 5/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Idaho to Austin

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
12:03 pm - 12:21 am
BOI
-
AUS
11h 18m
1 stop
Frontier Logo
6:45 am - 11:08 am
AUS
-
BOI
5h 23m
1 stop
$180Frontier
Thu, Apr 9 - Sun, Apr 12
Frontier Logo
12:03 pm - 10:05 am
BOI
-
AUS
21h 02m
1 stop
Frontier Logo
6:13 pm - 11:08 am
AUS
-
BOI
17h 55m
1 stop
$191Frontier
Sun, Apr 12 - Wed, Apr 15
Multiple Airlines Logo
1:22 pm - 8:18 pm
BOI
-
AUS
5h 56m
1 stop
Multiple Airlines Logo
6:00 am - 1:52 pm
AUS
-
BOI
8h 52m
1 stop
$239Multiple Airlines
Tue, May 5 - Tue, May 12
Alaska Airlines Logo
2:22 pm - 12:34 am
BOI
-
AUS
9h 12m
1 stop
Alaska Airlines Logo
6:00 am - 12:35 pm
AUS
-
BOI
7h 35m
1 stop
$263Alaska Airlines
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
5:10 am - 1:20 pm
GEG
-
AUS
6h 10m
1 stop
Southwest Logo
6:55 pm - 10:55 pm
AUS
-
GEG
6h 00m
1 stop
$279Southwest
Tue, Apr 21 - Tue, Apr 28
Southwest Logo
1:45 pm - 11:20 pm
GEG
-
AUS
7h 35m
1 stop
Southwest Logo
4:10 pm - 10:55 pm
AUS
-
GEG
8h 45m
2 stops
$284Southwest
Tue, Apr 21 - Tue, Apr 28
Alaska Airlines Logo
5:00 am - 2:37 pm
GEG
-
AUS
7h 37m
1 stop
Alaska Airlines Logo
6:00 am - 11:59 pm
AUS
-
GEG
19h 59m
1 stop
$289Alaska Airlines
Tue, Apr 14 - Sat, Apr 18
American Airlines Logo
3:15 pm - 11:39 pm
GEG
-
AUS
6h 24m
1 stop
American Airlines Logo
3:44 pm - 8:33 pm
AUS
-
GEG
6h 49m
1 stop
$298American Airlines
Wed, May 13 - Sat, May 16
American Airlines Logo
3:15 pm - 11:39 pm
GEG
-
AUS
6h 24m
1 stop
American Airlines Logo
3:44 pm - 11:09 pm
AUS
-
GEG
9h 25m
2 stops
$303American Airlines
Wed, May 13 - Sat, May 16
Multiple Airlines Logo
11:44 am - 10:05 am
GEG
-
AUS
20h 21m
1 stop
Multiple Airlines Logo
7:25 am - 11:46 am
AUS
-
GEG
6h 21m
1 stop
$315Multiple Airlines
Thu, Apr 23 - Sun, Apr 26

Frontier flights from Idaho to Austin

Our best Frontier deals on Idaho to Austin flight tickets
Frontier
Apr 9
BOI12:03 pmBoise Air Term. Gowen Fld
11h 18m
1 stop
AUS12:21 amAustin Bergstrom
Apr 12
AUS6:45 amAustin Bergstrom
5h 23m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
$180
Frontier
Apr 12
BOI12:03 pmBoise Air Term. Gowen Fld
21h 02m
1 stop
AUS10:05 amAustin Bergstrom
Apr 15
AUS6:13 pmAustin Bergstrom
17h 55m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
$191
Frontier
Apr 9
BOI12:03 pmBoise Air Term. Gowen Fld
11h 18m
1 stop
AUS12:21 amAustin Bergstrom
Apr 12
AUS6:45 amAustin Bergstrom
5h 23m
1 stop
BOI11:08 amBoise Air Term. Gowen Fld
$200

United Airlines flights from Idaho to Austin

Our best United Airlines deals on Idaho to Austin flight tickets
United Airlines
Apr 29
BOI6:15 amBoise Air Term. Gowen Fld
5h 53m
1 stop
AUS1:08 pmAustin Bergstrom
May 2
AUS5:30 amAustin Bergstrom
8h 57m
2 stops
BOI1:27 pmBoise Air Term. Gowen Fld
$295
United Airlines
Apr 22
BOI6:15 amBoise Air Term. Gowen Fld
8h 32m
2 stops
AUS3:47 pmAustin Bergstrom
May 1
AUS4:53 pmAustin Bergstrom
5h 24m
1 stop
BOI9:17 pmBoise Air Term. Gowen Fld
$322
United Airlines
Jun 5
BOI2:40 pmBoise Air Term. Gowen Fld
8h 04m
1 stop
AUS11:44 pmAustin Bergstrom
Jun 8
AUS5:39 amAustin Bergstrom
5h 06m
1 stop
BOI9:45 amBoise Air Term. Gowen Fld
$344

momondo Fare Finder

 
Customize your flight search to find flights from Idaho 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, momondo users made 832,500 searches. Data last updated March 26, 2026.
Use the filters below to find and compare flights from Idaho 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

Thu 4/9

12:03 pm-12:21 am

1 stop11h 18m

Austin Bergstrom

Sun 4/12

6:45 am-11:08 am

1 stop5h 23m

$180

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sun 4/12

12:03 pm-10:05 am

1 stop21h 02m

Austin Bergstrom

Wed 4/15

6:13 pm-11:08 am

1 stop17h 55m

$191

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 5/5

1:22 pm-8:18 pm

1 stop5h 56m

Austin Bergstrom

Tue 5/12

6:00 am-1:52 pm

1 stop8h 52m

$239

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 4/21

2:22 pm-12:34 am

1 stop9h 12m

Austin Bergstrom

Tue 4/28

6:00 am-12:35 pm

1 stop7h 35m

$263
Quickest round-trip

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 4/21

5:10 am-1:20 pm

1 stop6h 10m

Austin Bergstrom

Tue 4/28

6:55 pm-10:55 pm

1 stop6h 00m

$279

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 4/21

1:45 pm-11:20 pm

1 stop7h 35m

Austin Bergstrom

Tue 4/28

4:10 pm-10:55 pm

2 stops8h 45m

$284

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 4/14

5:00 am-2:37 pm

1 stop7h 37m

Austin Bergstrom

Sat 4/18

6:00 am-11:59 pm

1 stop19h 59m

$289

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 5/13

3:15 pm-11:39 pm

1 stop6h 24m

Austin Bergstrom

Sat 5/16

3:44 pm-8:33 pm

1 stop6h 49m

$298

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 5/13

3:15 pm-11:39 pm

1 stop6h 24m

Austin Bergstrom

Sat 5/16

3:44 pm-11:09 pm

2 stops9h 25m

$303

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Thu 4/23

11:44 am-10:05 am

1 stop20h 21m

Austin Bergstrom

Sun 4/26

7:25 am-11:46 am

1 stop6h 21m

$315

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Austin from

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

What is the cheapest month to fly to Austin?

The cheapest month to fly to Austin from Idaho is in January. Flight prices, which tend to average around $284, are often lower during this time because this is during the off-season. If you’re not able to fly to Austin in January, then September is your next best option. Flight prices from Idaho to Austin during September average around $286.

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 $363 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 $221 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

Fastest flight time

4h 41m

Direct flights

None
The fastest flight from Idaho to Austin takes 4h 41m
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?

  • 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
FrontierPriceFrom $164Free CancellationRating
5.7
3,015 reviews
Search Frontier flights
DeltaPriceFrom $166Free CancellationRating
7.9
8,336 reviews
Search Delta flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,331 reviews
Search Southwest flights
Alaska AirlinesPriceFrom $267Free CancellationRating
7.9
12,119 reviews
Search Alaska Airlines flights
United AirlinesPriceFrom $271Free CancellationRating
7.4
9,489 reviews
Search United Airlines flights
American AirlinesPriceFrom $278Free CancellationRating
7.1
11,497 reviews
Search American Airlines flights

Traveling to a place near Austin?

Book flights to Austin if you plan to visit one of these locations
Fredericksburg
Wimberley
San Marcos
Round Rock
Georgetown
Canyon Lake
Marble Falls
Cedar Park
Horseshoe Bay
Dripping Springs
Pflugerville
Seguin
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.

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