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$149+ Cheap flights from Idaho Falls to Austin (IDA - AUS)

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 11/19. Fares are subject to change and may not be available on all flights or dates of travel.
IDA — AUS
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheap 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 August 14, 2025.

Round-trip from

$325
(Delta)

One-way from

$149
(Hawaiian Airlines)

Popular in

October

Cheapest in

February

Average price

$637
From Idaho Falls Fanning Field to Austin Bergstrom
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One-way flight from Idaho Falls Fanning Field to Austin Bergstrom
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Highest demand for flights based on searches. 7% potential increase in price ($43 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Find 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 August 14, 2025.

This Delta deal was found by Cheapflights users on 8/14. 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 11/196:50 pmIDA - AUS
1 stop4h 59mDelta
Thu 11/2712:00 pmAUS - IDA
1 stop5h 35mDelta
Deal found 8/14$325
This Delta deal was found by Cheapflights users on 8/14. 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 11/196:50 pmIDA - AUS
1 stop4h 59mDelta
Tue 12/212:10 pmAUS - IDA
1 stop7h 04mDelta
Deal found 8/14$375
This Delta deal was found by Cheapflights users on 8/14. 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.
Sun 11/236:50 pmIDA - AUS
1 stop4h 59mDelta
Thu 11/2712:00 pmAUS - IDA
1 stop5h 35mDelta
Deal found 8/14$382
This Delta deal was found by Cheapflights users on 8/14. 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.
Fri 11/216:50 pmIDA - AUS
1 stop4h 59mDelta
Thu 11/278:10 amAUS - IDA
1 stop5h 19mDelta
Deal found 8/14$401
This Delta deal was found by Cheapflights users on 8/13. 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 8/283:00 pmIDA - AUS
1 stop5h 02mDelta
Mon 9/15:20 amAUS - IDA
1 stop6h 19mDelta
Deal found 8/13$411
This Hawaiian Airlines deal was found by Cheapflights users on 8/14. 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 Hawaiian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/203:50 pmIDA - AUS
1 stop7h 24mHawaiian Airlines
Sun 11/237:40 amAUS - IDA
1 stop7h 28mHawaiian Airlines
Deal found 8/14$414
This United Airlines deal was found by Cheapflights users on 8/13. 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 8/2810:56 amIDA - AUS
2 stops9h 24mUnited Airlines
Mon 9/112:56 pmAUS - IDA
1 stop5h 19mUnited Airlines
Deal found 8/13$416
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/225:00 amIDA - AUS
1 stop5h 03mUnited Airlines
Wed 12/315:15 amAUS - IDA
1 stop5h 13mUnited Airlines
Deal found 8/14$431
This Delta deal was found by Cheapflights users on 8/14. 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.
Sun 11/236:50 pmIDA - AUS
1 stop4h 59mDelta
Tue 12/212:10 pmAUS - IDA
1 stop7h 04mDelta
Deal found 8/14$432
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/255:00 amIDA - AUS
2 stops7h 10mUnited Airlines
Wed 12/315:15 amAUS - IDA
1 stop5h 13mUnited Airlines
Deal found 8/14$436
This Delta deal was found by Cheapflights users on 8/14. 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 12/256:00 amIDA - AUS
1 stop6h 21mDelta
Fri 1/212:03 pmAUS - IDA
2 stops11h 17mDelta
Deal found 8/14$446
This Delta deal was found by Cheapflights users on 8/14. 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 11/196:50 pmIDA - AUS
1 stop4h 59mDelta
Wed 12/38:10 amAUS - IDA
1 stop5h 19mDelta
Deal found 8/14$448

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 August 14, 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 11/19

6:50 pm-12:49 am

1 stop4h 59m

Austin Bergstrom

Thu 11/27

12:00 pm-4:35 pm

1 stop5h 35m

$325

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Wed 11/19

6:50 pm-12:49 am

1 stop4h 59m

Austin Bergstrom

Tue 12/2

12:10 pm-6:14 pm

1 stop7h 04m

$375

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Sun 11/23

6:50 pm-12:49 am

1 stop4h 59m

Austin Bergstrom

Thu 11/27

12:00 pm-4:35 pm

1 stop5h 35m

$382

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Fri 11/21

6:50 pm-12:49 am

1 stop4h 59m

Austin Bergstrom

Thu 11/27

8:10 am-12:29 pm

1 stop5h 19m

$401

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 8/28

3:00 pm-9:02 pm

1 stop5h 02m

Austin Bergstrom

Mon 9/1

5:20 am-10:39 am

1 stop6h 19m

$411

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 11/20

3:50 pm-12:14 am

1 stop7h 24m

Austin Bergstrom

Sun 11/23

7:40 am-2:08 pm

1 stop7h 28m

$414

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 8/28

10:56 am-9:20 pm

2 stops9h 24m

Austin Bergstrom

Mon 9/1

12:56 pm-5:15 pm

1 stop5h 19m

$416

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Wed 12/24

2:30 pm-9:25 pm

1 stop5h 55m

Austin Bergstrom

Wed 12/31

5:15 am-9:28 am

1 stop5h 13m

$431

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Mon 12/22

5:00 am-11:03 am

1 stop5h 03m

Austin Bergstrom

Wed 12/31

5:15 am-9:28 am

1 stop5h 13m

$431

Idaho FallsAustin

IDA - AUS

IDAAUS

Idaho Falls Fanning Field

Thu 12/25

5:00 am-11:03 am

1 stop5h 03m

Austin Bergstrom

Wed 12/31

5:15 am-9:28 am

1 stop5h 13m

$431

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

Showing 1-10 of 20 results
1
2

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, January is the cheapest month in which you can book a flight from Idaho Falls to Austin (average of $286). Flying from Idaho Falls to Austin in March is currently the most expensive (average of $362). 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 August 14, 2025.

It’s typically best to fly out from Idaho Falls to Austin at noon. Doing so could potentially save you 26% on the flight price compared to flying in the afternoon, which is usually more expensive.

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 August 14, 2025.
Read reviews from past customers who have flown Alaska Airlines, 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.
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Alaska Airlines
8.0
Very good
10,000 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
Delta
8.0
Very good
7,980 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)
United Airlines
7.4
Good
8,916 reviews
Alaska Airlines
8.0
Very good
10,000 reviews

Crew

8.5

Boarding

8.1

Food

7.1

Comfort

7.8

Entertainment

7.0

Overall

8.0

Reviews

1 / 20
8.0
Excellent

Anonymous,Aug 2025

BOI - LAX

flying in first class, my husband froze the entire flight and was miserable. first class does not offer blankets or any entertainment. (TV etc)

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.

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

    Alaska Airlines, at $295, was found to be the cheapest airline from Idaho Falls to Austin.Alternate airlines to your destination round-trip include Delta and United Airlines. Users have found that Alaska Airlines is 42% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Idaho Falls to Austin one-way?

    One-way options have recently been found by users for as low as $149 on Hawaiian Airlines. Other airlines that offer cheap prices include American Airlines from $150 and United Airlines from $195 one-way.

  • 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, January is the cheapest month in which you can book a flight from Idaho Falls to Austin (average of $286). Flying from Idaho Falls to Austin in March is currently the most expensive (average of $362). 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
San Marcos
Georgetown
Fredericksburg
Pflugerville
Dripping Springs
Cedar Park
Canyon Lake
Round Rock
Seguin
Horseshoe Bay

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Alternative routes for Idaho Falls to Austin

See prices for flight routes from nearby airports that may be better suited for you.
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Top 3 airlines flying from Idaho Falls to Austin

Discover the top 3 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
Alaska AirlinesCheapest$295Average$423FlexibilityNo cancel feeOn-time75%
DeltaCheapest$296Average$425FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$354Average$650FlexibilityNo cancel feeOn-time69%

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