HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Idaho Falls

$303+ Cheap flights from Austin to Idaho Falls (AUS - IDA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/29. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IDA
Nov 28 — Dec 51
Fri 11/28
Fri 12/5
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Austin to Idaho Falls with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Austin to Idaho Falls

Discover tips and strategies to find the most affordable flight options for your journey from Austin (AUS) to Idaho Falls (IDA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated October 29, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$332
(Alaska Airlines)

One-way from

$303
(Kiwi.com)

Popular in

December

Cheapest in

May

Average price

$445
Provider with most accurate pricing for Austin Bergstrom-Idaho Falls Fanning Field flight deals.
Search Deals
Provider most trusted by Cheapflights users for Austin Bergstrom-Idaho Falls Fanning Field flights.
Search Deals
From Austin Bergstrom to Idaho Falls Fanning Field
Search Deals
One-way flight from Austin Bergstrom to Idaho Falls Fanning Field
Search Deals
Highest demand for flights based on searches. 5% potential increase in price ($29 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2025
Search Deals

Find flight deals from Austin to Idaho Falls

Cheapest flights from Austin to Idaho Falls
Explore the most affordable flight options available from Austin to Idaho Falls. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 29, 2025.

This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/188:10 amAUS - IDA
1 stop5h 24mDelta
Wed 11/196:00 amIDA - AUS
2 stops8h 26mDelta
Deal found 10/27$354
This Kiwi.com deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/2612:23 pmAUS - IDA
1 stop25h 39mMultiple Airlines
Sun 11/3010:53 pmIDA - AUS
2 stops29h 37mMultiple Airlines
Deal found 10/28$407
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/265:13 pmAUS - IDA
2 stops28h 27mMultiple Airlines
Wed 12/311:56 pmIDA - AUS
1 stop19h 17mMultiple Airlines
Deal found 10/26$425
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/99:01 amAUS - IDA
1 stop7h 15mUnited Airlines
Wed 11/124:15 pmIDA - AUS
1 stop6h 44mUnited Airlines
Deal found 10/26$431
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/62:05 pmAUS - IDA
2 stops9h 10mDelta
Tue 11/186:57 pmIDA - AUS
2 stops13h 57mDelta
Deal found 10/27$455
This American Airlines deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/68:34 amAUS - IDA
1 stop5h 53mAmerican Airlines
Tue 11/181:58 pmIDA - AUS
1 stop5h 47mAmerican Airlines
Deal found 10/28$466
This Delta deal was found by Cheapflights users on 10/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/122:05 pmAUS - IDA
2 stops9h 14mDelta
Sun 11/166:57 pmIDA - AUS
1 stop4h 44mDelta
Deal found 10/28$481

Cheapflights Fare Finder

 
Customize your flight search to find flights from Austin to Idaho Falls 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, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
Use the filters below to find and compare flights from Austin to Idaho Falls that are best for you.

Fly from

Austin

Fly to

Idaho Falls

Route

Depart

Return

Price

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Tue 2/17

6:00 am-3:23 pm

1 stop10h 23m

Idaho Falls Fanning Field

Wed 2/25

8:00 am-4:38 pm

1 stop7h 38m

$332

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Tue 11/18

8:10 am-12:34 pm

1 stop5h 24m

Idaho Falls Fanning Field

Wed 11/19

6:00 am-3:26 pm

2 stops8h 26m

$354

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Wed 11/26

12:23 pm-1:02 pm

1 stop25h 39m

Idaho Falls Fanning Field

Sun 11/30

10:53 pm-5:30 am

2 stops29h 37m

$407

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Tue 2/17

1:59 pm-10:21 pm

2 stops9h 22m

Idaho Falls Fanning Field

Wed 2/25

6:00 am-6:37 pm

2 stops11h 37m

$420

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sun 11/9

9:01 am-3:16 pm

1 stop7h 15m

Idaho Falls Fanning Field

Wed 11/12

4:15 pm-11:59 pm

1 stop6h 44m

$431

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Wed 11/12

7:00 am-3:13 pm

1 stop9h 13m

Idaho Falls Fanning Field

Sat 11/15

6:05 am-3:14 pm

1 stop8h 09m

$475

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Wed 11/12

8:10 am-12:34 pm

1 stop5h 24m

Idaho Falls Fanning Field

Sun 11/16

6:57 pm-12:41 am

1 stop4h 44m

$476

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Wed 11/12

12:20 pm-10:19 pm

2 stops10h 59m

Idaho Falls Fanning Field

Sat 11/15

1:15 pm-9:03 pm

1 stop6h 48m

$481

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sat 11/29

10:06 pm-4:05 pm

1 stop18h 59m

$303

Flights are sorted by cheapest round-trip flights first.

Deals found on 10/28

Compare providers for flights from Austin to Idaho Falls

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Austin to Idaho Falls in October.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Austin-Idaho Falls flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Austin-Idaho Falls flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Austin-Idaho Falls flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Austin-Idaho Falls flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Austin-Idaho Falls flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Austin to Idaho Falls

Have a flexible travel schedule? Discover the best time to fly to Idaho Falls from Austin with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Austin to Idaho Falls

What is the cheapest month to book a flight from Austin to Idaho Falls?

Currently, September is the cheapest month in which you can book a flight from Austin to Idaho Falls (average of $173). Flying from Austin to Idaho Falls in December is currently the most expensive (average of $372). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Idaho Falls

Get insights into the airlines that provide service to Idaho Falls. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Idaho Falls. Reviews last updated October 29, 2025.
Get a feel of what it's like to fly with Delta and United Airlines from Austin to Idaho Falls by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
Delta
7.9
Good
7,992 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.
United Airlines
7.4
Good
8,999 reviews
Delta
7.9
Good
7,992 reviews

Overall

7.9

Comfort

7.9

Entertainment

7.9

Food

7.3

Boarding

8.2

Crew

8.5

Reviews

1 / 20
8.0
Excellent

Matthew,Oct 2025

GSP - ATL

This is always a full flight since it is the connecting route to primary destinations through Atlanta. That said, the crew handles the full load well. Not much more to say, it is a short flight with no in-flight services due to the length.

Related info for your journey

Find useful and relevant information for your journey from Austin to Idaho Falls. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Austin to Idaho Falls?

    There are many flights that can get you from Austin to Idaho Falls in 5h 24m. Fly via Alaska Airlines or Delta to get the fastest option. Austin and Idaho Falls are separated by a distance of 1212 mi. When browsing for deals, the options you’ll see will be for both nonstop flights and flights with stops.

  • What are the cheapest airlines flying from Austin to Idaho Falls round-trip?

    Currently priced at $309, Delta will fly you from Austin to Idaho Falls and back. In addition to Delta, many other airlines offer competitively priced options for your trip. Check Cheapflights for deals on United Airlines for as low as $400. Delta is currently priced 37% below the average price you’ll pay for this route.

  • Can I find deals for flights from Austin to Idaho Falls that include hotel bookings?

    Yes. In addition to deals on Austin to Idaho Falls flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Austin to Idaho Falls?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Austin to Idaho Falls.

  • Can I find deals for business class flights from Austin to Idaho Falls?

    Yes. Cheapflights offers flight deals from Austin to Idaho Falls by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Austin to Idaho Falls?

    Currently, September is the cheapest month in which you can book a flight from Austin to Idaho Falls (average of $173). Flying from Austin to Idaho Falls in December is currently the most expensive (average of $372). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Idaho Falls?

Book flights to Idaho Falls if you plan to visit one of these locations
Rexburg

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Austin to Idaho Falls

See prices for flight routes from nearby airports that may be better suited for you.
Dallas/Fort Worth to Spokane flights
Dallas/Fort Worth to Boise flights
Hobby to Jackson flights
Dallas/Fort Worth to Jackson flights
Hobby to Boise flights
George Bush Intcntl to Jackson flights
Austin to Jackson flights
George Bush Intcntl to Boise flights
Hobby to Spokane flights
Austin to Spokane flights
Love Field to Boise flights
Love Field to Spokane flights
Dallas/Fort Worth to Hailey flights
Austin to Boise flights
San Antonio to Boise flights
George Bush Intcntl to Spokane flights
Dallas/Fort Worth to Idaho Falls flights
Hobby to Idaho Falls flights
George Bush Intcntl to Idaho Falls flights
Corpus Christi to Spokane flights
Lubbock to Boise flights
San Antonio to Spokane flights
El Paso to Spokane flights
Hobby to Pocatello flights
Austin to Hailey flights
Dallas/Fort Worth to Lewiston flights
Hobby to Twin Falls flights
San Antonio to Jackson flights
George Bush Intcntl to Pocatello flights
George Bush Intcntl to Twin Falls flights
El Paso to Boise flights
Dallas/Fort Worth to West Yellowstone flights
San Antonio to Idaho Falls flights
Amarillo to Idaho Falls flights
Lubbock to Spokane flights
Dallas/Fort Worth to Pocatello flights
Love Field to Jackson flights
McAllen to Jackson flights
McAllen to Idaho Falls flights
Midland to Jackson flights
Abilene to Spokane flights
Dallas/Fort Worth to Twin Falls flights
Corpus Christi to Jackson flights
Corpus Christi to Idaho Falls flights
Brownsville to Spokane flights
McAllen to Lewiston flights
Love Field to Hailey flights
Love Field to Lewiston flights

Top 2 airlines flying from Austin to Idaho Falls

Discover the top 2 airlines that operate flights from Austin to Idaho Falls. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated October 29, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$309Average$375FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$400Average$515FlexibilityNo cancel feeOn-time69%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.