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Cheap flights from Idaho to Austin from $90

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 2/26. 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
$190Frontier
Thu, Apr 9 - Sun, Apr 12
Delta Logo
6:15 pm - 12:39 am
BOI
-
AUS
5h 24m
1 stop
Delta Logo
6:15 am - 2:05 pm
AUS
-
BOI
8h 50m
1 stop
$197Delta
Wed, Mar 18 - Tue, Mar 24
Multiple Airlines Logo
6:28 am - 2:35 pm
BOI
-
AUS
7h 07m
1 stop
Multiple Airlines Logo
6:45 am - 11:51 am
AUS
-
BOI
6h 06m
1 stop
$208Multiple Airlines
Tue, Mar 3 - Thu, Mar 5
Multiple Airlines Logo
6:00 pm - 2:35 pm
BOI
-
AUS
19h 35m
1 stop
Multiple Airlines Logo
6:45 am - 11:51 am
AUS
-
BOI
6h 06m
1 stop
$213Multiple Airlines
Sat, Feb 28 - Thu, Mar 5
Alaska Airlines Logo
3:10 pm - 11:59 pm
GEG
-
AUS
6h 49m
1 stop
Alaska Airlines Logo
5:49 pm - 8:13 am
AUS
-
GEG
16h 24m
1 stop
$237Alaska Airlines
Wed, May 13 - Sat, May 16
United Airlines Logo
7:02 am - 9:40 pm
GEG
-
AUS
12h 38m
2 stops
United Airlines Logo
9:08 am - 12:41 pm
AUS
-
GEG
5h 33m
1 stop
$242United Airlines
Tue, Mar 17 - Tue, Mar 24
Alaska Airlines Logo
5:00 am - 4:45 pm
GEG
-
AUS
9h 45m
1 stop
Alaska Airlines Logo
6:00 am - 5:03 pm
AUS
-
GEG
13h 03m
2 stops
$245Alaska Airlines
Wed, Feb 25 - Wed, Mar 4
American Airlines Logo
3:06 pm - 11:06 pm
JAC
-
AUS
7h 00m
1 stop
American Airlines Logo
6:25 am - 12:18 pm
AUS
-
JAC
6h 53m
1 stop
$329American Airlines
Thu, Mar 12 - Sun, Mar 15
United Airlines Logo
2:40 pm - 8:51 pm
IDA
-
AUS
5h 11m
1 stop
United Airlines Logo
7:10 am - 1:30 pm
AUS
-
IDA
7h 20m
1 stop
$339United Airlines
Fri, Feb 20 - Tue, Feb 24
American Airlines Logo
3:06 pm - 11:06 pm
JAC
-
AUS
7h 00m
1 stop
American Airlines Logo
6:25 am - 12:18 pm
AUS
-
JAC
6h 53m
1 stop
$359American Airlines
Fri, Mar 13 - Sun, Mar 15

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
$190
Frontier
Feb 26
BOI12:38 pmBoise Air Term. Gowen Fld
10h 38m
1 stop
AUS12:16 amAustin Bergstrom
Mar 1
AUS6:45 amAustin Bergstrom
5h 26m
1 stop
BOI11:11 amBoise Air Term. Gowen Fld
$204
Frontier
Feb 19
BOI12:36 pmBoise Air Term. Gowen Fld
10h 40m
1 stop
AUS12:16 amAustin Bergstrom
Feb 26
AUS6:45 amAustin Bergstrom
6h 06m
1 stop
BOI11:51 amBoise Air Term. Gowen Fld
$211

United Airlines flights from Idaho to Austin

Our best United Airlines deals on Idaho to Austin flight tickets
United Airlines
Mar 28
BOI6:15 amBoise Air Term. Gowen Fld
5h 42m
1 stop
AUS12:57 pmAustin Bergstrom
Mar 31
AUS8:45 amAustin Bergstrom
9h 03m
1 stop
BOI4:48 pmBoise Air Term. Gowen Fld
$237
United Airlines
Mar 3
BOI5:00 amBoise Air Term. Gowen Fld
7h 13m
2 stops
AUS1:13 pmAustin Bergstrom
Mar 4
AUS6:19 pmAustin Bergstrom
6h 29m
1 stop
BOI11:48 pmBoise Air Term. Gowen Fld
$242
United Airlines
Mar 4
BOI5:00 amBoise Air Term. Gowen Fld
7h 13m
2 stops
AUS1:13 pmAustin Bergstrom
Mar 8
AUS5:30 amAustin Bergstrom
5h 36m
1 stop
BOI10:06 amBoise Air Term. Gowen Fld
$275

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 February 7, 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

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

$190

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Wed 3/18

6:15 pm-12:39 am

1 stop5h 24m

Austin Bergstrom

Tue 3/24

6:15 am-2:05 pm

1 stop8h 50m

$197

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Tue 3/3

6:28 am-2:35 pm

1 stop7h 07m

Austin Bergstrom

Thu 3/5

6:45 am-11:51 am

1 stop6h 06m

$208

BoiseAustin

BOI - AUS

BOIAUS

Boise Air Term. Gowen Fld

Sat 2/28

6:00 pm-2:35 pm

1 stop19h 35m

Austin Bergstrom

Thu 3/5

6:45 am-11:51 am

1 stop6h 06m

$213

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 5/13

3:10 pm-11:59 pm

1 stop6h 49m

Austin Bergstrom

Sat 5/16

5:49 pm-8:13 am

1 stop16h 24m

$237

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Tue 3/17

7:02 am-9:40 pm

2 stops12h 38m

Austin Bergstrom

Tue 3/24

9:08 am-12:41 pm

1 stop5h 33m

$242

SpokaneAustin

GEG - AUS

GEGAUS

Spokane

Wed 2/25

5:00 am-4:45 pm

1 stop9h 45m

Austin Bergstrom

Wed 3/4

6:00 am-5:03 pm

2 stops13h 03m

$245

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Thu 3/12

3:06 pm-11:06 pm

1 stop7h 00m

Austin Bergstrom

Sun 3/15

6:25 am-12:18 pm

1 stop6h 53m

$329

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Fri 2/20

2:40 pm-8:51 pm

1 stop5h 11m

Austin Bergstrom

Tue 2/24

7:10 am-1:30 pm

1 stop7h 20m

$339

JacksonAustin

JAC - AUS

JACAUS

Jackson Hole

Fri 3/13

3:06 pm-11:06 pm

1 stop7h 00m

Austin Bergstrom

Sun 3/15

6:25 am-12:18 pm

1 stop6h 53m

$359

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 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 $296.

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 $358 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 $268 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 49m

Direct flights

None
The fastest flight from Idaho to Austin takes 4h 49m
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 $179Free CancellationRating
5.7
3,052 reviews
Search Frontier flights
DeltaPriceFrom $191Free CancellationRating
7.9
8,172 reviews
Search Delta flights
SouthwestPriceFrom $216Free CancellationRating
8.0
4,280 reviews
Search Southwest flights
United AirlinesPriceFrom $246Free CancellationRating
7.4
9,254 reviews
Search United Airlines flights
American AirlinesPriceFrom $275Free CancellationRating
7.2
11,249 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
Kyle
Seguin
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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