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$342+ Cheap flights from Idaho Falls to Austin (IDA - AUS)

This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/28. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — AUS
Jan 17 — Jan 241
Sat 1/17
Sat 1/24
1 adult, Economy
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Cheap flight deals from Idaho Falls to Austin

Cheapest flights from Idaho Falls to Austin
Explore the most affordable flight options available from Idaho Falls to Austin. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 18, 2025.

This United Airlines deal was found by Cheapflights users on 12/16. 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.
Wed 12/314:05 pmIDA - AUS
1 stop6h 51mUnited Airlines
Sun 1/45:15 amAUS - IDA
1 stop5h 43mUnited Airlines
Deal found 12/16$431
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/2310:45 amIDA - AUS
1 stop5h 07mUnited Airlines
Sat 12/275:15 amAUS - IDA
1 stop5h 43mUnited Airlines
Deal found 12/17$671
This deal was found by Cheapflights users on 12/17. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/236:40 amIDA - AUS
1 stop5h 44mUnited Airlines
Sun 12/286:22 pmAUS - IDA
1 stop5h 37mUnited Airlines
Deal found 12/17$859
This Alaska Airlines deal was found by Cheapflights users on 12/16. 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 12/316:00 amIDA - AUS
2 stops29h 32mAlaska Airlines
Sun 1/47:17 amAUS - IDA
2 stops17h 50mAlaska Airlines
Deal found 12/16$1,065

Find flight deals from Idaho Falls to Austin

Discover tips and strategies to find the most affordable flight options for your journey from Idaho Falls (IDA) to Austin (AUS). 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 December 18, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$342
(Alaska Airlines)

Popular in

August

Cheapest in

February

Average price

$515
Provider with most accurate pricing for Idaho Falls Fanning Field-Austin Bergstrom flight deals.
Search Deals
Provider most trusted by Cheapflights users for Idaho Falls Fanning Field-Austin Bergstrom flights.
Search Deals
From Idaho Falls Fanning Field to Austin Bergstrom
Search Deals
Highest demand for flights based on searches. 0% potential increase in price ($0 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($9 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Idaho Falls 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, Cheapflights users made 2,558,603 searches. Data last updated December 18, 2025.
Use the filters below to find and compare flights from Idaho Falls to Austin that are best for you.

Fly from

Idaho Falls

Fly to

Austin

Route

Depart

Return

Price

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Wed 1/28

9:00 am-5:59 pm

1 stop7h 59m

Austin Bergstrom

Mon 2/2

7:15 am-6:18 pm

1 stop12h 03m

$342

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Mon 1/12

6:58 pm-7:19 pm

2 stops23h 21m

Austin Bergstrom

Wed 1/14

6:00 am-10:59 pm

2 stops17h 59m

$363

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Wed 12/31

4:05 pm-11:56 pm

1 stop6h 51m

Austin Bergstrom

Sun 1/4

5:15 am-9:58 am

1 stop5h 43m

$431

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 1/1

5:00 am-11:03 am

1 stop5h 03m

Austin Bergstrom

Mon 1/5

6:22 pm-10:59 pm

1 stop5h 37m

$516

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Sat 1/3

4:05 pm-11:56 pm

1 stop6h 51m

$440

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Sun 1/4

5:00 am-11:03 am

1 stop5h 03m

$440

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Sun 1/4

3:09 pm-4:46 pm

2 stops24h 37m

$743

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/17

Compare providers for flights from Idaho Falls to Austin

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 Idaho Falls to Austin in December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars

*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 Idaho Falls-Austin flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Idaho Falls-Austin flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Idaho Falls-Austin flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Idaho Falls-Austin 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 Idaho Falls-Austin 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 Idaho Falls to Austin

Have a flexible travel schedule? Discover the best time to fly to Austin from Idaho Falls 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 Idaho Falls to Austin

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

Currently, May is the cheapest month in which you can book a flight from Idaho Falls to Austin (average of $184). Flying from Idaho Falls to Austin in July is currently the most expensive (average of $430). 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.

What is the cheapest time of day to fly from IDA to AUS?

Find hourly flight availability from Idaho Falls to Austin. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 18, 2025.

It’s typically best to fly out from Idaho Falls to Austin at noon. Doing so could potentially save you 25% on the flight price compared to flying in the afternoon, which is usually more expensive.

How much does it cost to fly round-trip from Idaho Falls to Austin?

Reviews of airlines servicing Austin

Get insights into the airlines that provide service to Austin. 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 Austin. Reviews last updated December 18, 2025.
Read reviews from past customers who have flown Delta and United Airlines from Idaho Falls to Austin. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
Delta
7.9
Good
8,005 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.
United Airlines
7.4
Good
9,092 reviews
Delta
7.9
Good
8,005 reviews

Entertainment

7.9

Crew

8.5

Overall

7.9

Boarding

8.1

Food

7.3

Comfort

7.9

Reviews

1 / 20
6.0
Good

Jim,Nov 2025

AVL - ATL

The exit row seats without a seat in front are great for leg room but don’t have a fold out entertainment console so you’re forced to use the screen several feet in front of you (there is, at least, a remote). Best to bring a tablet loaded with entertainment or a book.

Related info for your journey

Find useful and relevant information for your journey from Idaho Falls to Austin. 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 Idaho Falls to Austin?

    Airlines like Alaska Airlines fly from Idaho Falls to Austin in about 7h 59m. The time it takes to get you to your destination can typically vary by up to . The distance from Idaho Falls to Austin is about 1212 mi.

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

    Delta, at $206, was found to be the cheapest airline from Idaho Falls to Austin. An alternate airline flying to your destination would be United Airlines. Users have found that Delta is 56% cheaper than the other options available to this destination.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Idaho Falls to Austin 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 Idaho Falls to Austin?

    Currently, May is the cheapest month in which you can book a flight from Idaho Falls to Austin (average of $184). Flying from Idaho Falls to Austin in July is currently the most expensive (average of $430). 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 Austin?

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

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Top 2 airlines flying from Idaho Falls to Austin

Discover the top 2 airlines that operate flights from Idaho Falls to Austin. 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 December 18, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$296Average$425FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$350Average$454FlexibilityNo cancel feeOn-time69%

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