$171 Cheap Flights from Austin (AUS) to Sun Valley (SUN)

View $171 flight on Mon, Sep 7, 2026Opens in a new window

Popular airlines from Austin-Bergstrom Intl. Airport (AUS) to Sun Valley, ID (SUN-Friedman Memorial)

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Cheap Flights from Austin to Sun Valley (AUS-SUN)

Prices were available within the past 7 days and start at $171 for one-way flights and $331 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, May 7 - Thu, May 14
AUS
Austin
SUN
Sun Valley
$331 Roundtrip, found 1 day ago
$331
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Thu, May 7 from Austin to Sun Valley, returning Thu, May 14, priced at $331 found 1 day ago
American Airlines
Sat, Feb 27 - Sat, Mar 6
AUS
Austin
SUN
Sun Valley
$351 Roundtrip, just found
$351
Roundtrip
just found
Select American Airlines flight, departing Sat, Feb 27 from Austin to Sun Valley, returning Sat, Mar 6, priced at $351 just found
United
Sat, Feb 27 - Sat, Mar 6
AUS
Austin
SUN
Sun Valley
$351 Roundtrip, just found
$351
Roundtrip
just found
Select United flight, departing Sat, Feb 27 from Austin to Sun Valley, returning Sat, Mar 6, priced at $351 just found
Delta
Wed, Jul 29 - Wed, Aug 5
AUS
Austin
SUN
Sun Valley
$356 Roundtrip, found 16 hours ago
$356
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Jul 29 from Austin to Sun Valley, returning Wed, Aug 5, priced at $356 found 16 hours ago
Delta
Wed, Jul 29 - Wed, Aug 5
AUS
Austin
SUN
Sun Valley
$362 Roundtrip, found 16 hours ago
$362
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Jul 29 from Austin to Sun Valley, returning Wed, Aug 5, priced at $362 found 16 hours ago
Delta
Wed, Jul 29 - Wed, Aug 5
AUS
Austin
SUN
Sun Valley
$370 Roundtrip, found 16 hours ago
$370
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Jul 29 from Austin to Sun Valley, returning Wed, Aug 5, priced at $370 found 16 hours ago
United
Sat, Feb 27 - Sat, Mar 6
AUS
Austin
SUN
Sun Valley
$370 Roundtrip, just found
$370
Roundtrip
just found
Select United flight, departing Sat, Feb 27 from Austin to Sun Valley, returning Sat, Mar 6, priced at $370 just found
Delta
Wed, Jul 29 - Wed, Aug 5
AUS
Austin
SUN
Sun Valley
$375 Roundtrip, found 16 hours ago
$375
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Jul 29 from Austin to Sun Valley, returning Wed, Aug 5, priced at $375 found 16 hours ago
Delta
Mon, Aug 17 - Tue, Aug 18
AUS
Austin
SUN
Sun Valley
$381 Roundtrip, found 1 day ago
$381
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Aug 17 from Austin to Sun Valley, returning Tue, Aug 18, priced at $381 found 1 day ago
Delta
Wed, Jul 29 - Wed, Aug 5
AUS
Austin
SUN
Sun Valley
$389 Roundtrip, found 16 hours ago
$389
Roundtrip
found 16 hours ago
Select Delta flight, departing Wed, Jul 29 from Austin to Sun Valley, returning Wed, Aug 5, priced at $389 found 16 hours ago

Frequently asked questions

How much does a flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) cost?
You can find cheap one-way flights from $171 and cheap return flights from $331 Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) with Expedia. One-way flights usually range from $240 to $1251, and return flights typically cost between $315 and $1424. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see the cheapest fares first, and use the Price Tracking tool to receive alerts when Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) ticket fares go up or down.*Typical price ranges based on flights available on Expedia in the last year. Prices include multi-airline options.
What is the cheapest month to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The cheapest month to fly from AUS to SUN is May when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you're able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Enter AUS to SUN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
American Airlines is one of the cheapest airlines offering connecting flights from Austin (AUS) to Sun Valley (SUN) with a layover in Dallas-Fort Worth Intl. (DFW), starting from around $216. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.*Prices based on flights available on Expedia in the last year.
How do I find cheap flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
To find a cheap flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The earliest flight from Austin (AUS) to Sun Valley (SUN) usually departs at around 5:00 AM, operated by American Airlines. This seasonal service is available in January, perfect for those looking to hit the slopes early in the day. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What are the most popular departure times for flights from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The most popular departure times for flights from Austin (AUS) to Sun Valley (SUN) are from noon to 3pm. About 44% of passengers prefer this time window. Many major carriers, including American Airlines and United Airlines, offer flights during this window. This timing is great because it gives you the morning to prepare and enjoy a leisurely start before heading to your destination.
How long does it take to fly from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Flying from AUS to SUN with a connection usually takes about 7 hours 30 minutes, traveling roughly 1,296 miles. Keep in mind that actual flight times can vary due to wind patterns, weather, and air traffic.
Can you fly business or first class from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
First class seats are offered on the AUS to SUN route. First class cabins are available on:

  • Delta Air Lines
  • American Airlines
  • United Airlines

How do I earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight with Expedia?
It's easy to earn miles on a Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Sun Valley from Austin-Bergstrom Intl. (AUS)?
If you're planning to travel to Sun Valley from Austin-Bergstrom Intl. (AUS), you can fly into Friedman Memorial (SUN) Some flights may connect through major hubs like George Bush Intercontinental (IAH), San Francisco Intl. (SFO), San Diego Intl. (SAN) before reaching Sun Valley. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) at the last minute?
Typically, booking a last minute flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package?
Securing a Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
If you booked your Austin, TX (AUS-Austin-Bergstrom Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Austin-Bergstrom Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, Delta, United
Roundtrip price
$330
Distance
1295 mi

Book with confidence

Austin to Sun Valley Flights

The cheapest times to fly from Austin to Sun Valley

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Austin to Sun Valley are during the month of May. You can find some of the cheapest flights from Austin to Sun Valley with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Austin to Sun Valley

Sunday is one of the best days to book for cheap flights from Austin to Sun Valley: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Austin to Sun Valley

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Austin to Sun Valley in 2026. You can also book with separate airlines for your outbound and return journeys, from $171 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Austin to Sun Valley flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Austin to Sun Valley airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Austin to Sun Valley Flights

*Flight schedules are subject to change.

*Available to One Key members.

 

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