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Idaho Falls

$171+ 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 10/11. Fares are subject to change and may not be available on all flights or dates of travel.
AUS — IDA
Oct 11 — Oct 181
Sat 10/11
Sat 10/18
1 adult, Economy
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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 September 11, 2025.

Round-trip from

$371
(United Airlines)

One-way from

$171
(Hawaiian Airlines)

Popular in

November

Cheapest in

January

Average price

$452
From Austin Bergstrom to Idaho Falls Fanning Field
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One-way flight from Austin Bergstrom to Idaho Falls Fanning Field
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Highest demand for flights based on searches. 19% potential increase in price ($128 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($14 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 11, 2025.

This United Airlines deal was found by Cheapflights users on 9/10. 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.
Mon 10/136:10 pmAUS - IDA
1 stop5h 39mUnited Airlines
Wed 10/155:00 amIDA - AUS
1 stop7h 16mUnited Airlines
Deal found 9/10$371
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 10/106:00 amAUS - IDA
2 stops17h 12mMultiple Airlines
Mon 10/137:40 pmIDA - AUS
1 stop16h 17mMultiple Airlines
Deal found 9/10$397
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/37:00 amAUS - IDA
1 stop9h 13mAlaska Airlines
Thu 11/63:50 pmIDA - AUS
1 stop7h 24mAlaska Airlines
Deal found 9/10$430
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 10/32:50 pmAUS - IDA
1 stop19h 58mUnited Airlines
Wed 10/85:00 amIDA - AUS
1 stop5h 29mUnited Airlines
Deal found 9/11$448
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Sat 10/111:00 pmAUS - IDA
1 stop5h 18mUnited Airlines
Wed 10/155:56 pmIDA - AUS
1 stop5h 03mUnited Airlines
Deal found 9/9$452
This Alaska Airlines deal was found by Cheapflights users on 9/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/247:15 amAUS - IDA
1 stop9h 05mAlaska Airlines
Sat 9/276:13 amIDA - AUS
1 stop8h 13mAlaska Airlines
Deal found 9/10$455
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Sat 10/44:21 pmAUS - IDA
1 stop22h 12mUnited Airlines
Thu 10/95:00 amIDA - AUS
1 stop7h 16mUnited Airlines
Deal found 9/11$471
This Alaska Airlines deal was found by Cheapflights users on 9/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/35:50 pmAUS - IDA
2 stops22h 48mAlaska Airlines
Wed 10/86:00 amIDA - AUS
1 stop16h 56mAlaska Airlines
Deal found 9/11$501
This United Airlines deal was found by Cheapflights users on 9/10. 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.
Thu 9/255:30 amAUS - IDA
1 stop5h 18mUnited Airlines
Mon 9/295:00 amIDA - AUS
1 stop7h 16mUnited Airlines
Deal found 9/10$511
This United Airlines deal was found by Cheapflights users on 9/11. 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.
Fri 9/268:33 pmAUS - IDA
1 stop14h 15mUnited Airlines
Tue 9/305:00 amIDA - AUS
1 stop15h 05mUnited Airlines
Deal found 9/11$523

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 September 11, 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

Mon 10/13

6:10 pm-10:49 pm

1 stop5h 39m

Idaho Falls Fanning Field

Wed 10/15

5:00 am-1:16 pm

1 stop7h 16m

$371

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Mon 11/3

7:00 am-3:13 pm

1 stop9h 13m

Idaho Falls Fanning Field

Thu 11/6

3:50 pm-12:14 am

1 stop7h 24m

$430

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Mon 3/9

1:35 pm-10:38 pm

1 stop10h 03m

Idaho Falls Fanning Field

Tue 3/17

8:00 am-4:38 pm

1 stop7h 38m

$430

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Fri 10/3

2:50 pm-9:48 am

1 stop19h 58m

Idaho Falls Fanning Field

Wed 10/8

5:00 am-11:29 am

1 stop5h 29m

$448

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sat 10/11

1:00 pm-5:18 pm

1 stop5h 18m

Idaho Falls Fanning Field

Wed 10/15

5:56 pm-11:59 pm

1 stop5h 03m

$452

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sat 10/4

4:21 pm-1:33 pm

1 stop22h 12m

Idaho Falls Fanning Field

Thu 10/9

5:00 am-1:16 pm

1 stop7h 16m

$471

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Thu 9/25

5:30 am-9:48 am

1 stop5h 18m

Idaho Falls Fanning Field

Mon 9/29

5:00 am-1:16 pm

1 stop7h 16m

$511

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Fri 9/26

8:33 pm-9:48 am

1 stop14h 15m

Idaho Falls Fanning Field

Tue 9/30

5:00 am-9:05 pm

1 stop15h 05m

$523

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sat 10/11

7:15 am-3:38 pm

1 stop9h 23m

$171

AustinIdaho Falls

AUS - IDA

AUSIDA

Austin Bergstrom

Sat 10/11

8:15 am-10:38 pm

2 stops15h 23m

$273

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/10

Showing 1-10 of 11 results
1
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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, October is the cheapest month in which you can book a flight from Austin to Idaho Falls (average of $380). Flying from Austin to Idaho Falls in December is currently the most expensive (average of $578). 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 September 11, 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
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,960 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
United Airlines
7.4
Good
8,937 reviews
Delta
8.0
Very good
7,960 reviews

Entertainment

7.9

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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 39m. Fly via United Airlines or Alaska Airlines 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 40% 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, October is the cheapest month in which you can book a flight from Austin to Idaho Falls (average of $380). Flying from Austin to Idaho Falls in December is currently the most expensive (average of $578). 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

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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 September 11, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$309Average$346FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$400Average$569FlexibilityNo cancel feeOn-time69%

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