$121 Cheap Flights from Eugene (EUG) to Sun Valley (SUN)

View $121 flight on Sun, Dec 21, 2025Opens in a new window

Popular airlines from Mahlon Sweet Field Airport (EUG) to Sun Valley, ID (SUN-Friedman Memorial)

Cheap Flights from Eugene to Sun Valley (EUG-SUN)

Prices were available within the past 7 days and start at $121 for one-way flights and $240 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
EUG
Eugene
SUN
Sun Valley
$240 Roundtrip, found 17 hours ago
$240
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Eugene to Sun Valley, returning Sat, Dec 13, priced at $240 found 17 hours ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
EUG
Eugene
SUN
Sun Valley
$262 Roundtrip, found 17 hours ago
$262
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Eugene to Sun Valley, returning Sat, Dec 13, priced at $262 found 17 hours ago
Alaska Airlines
Thu, Dec 18 - Sat, Jan 10
EUG
Eugene
SUN
Sun Valley
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Eugene to Sun Valley, returning Sat, Jan 10, priced at $269 found 2 days ago
Alaska Airlines
Sat, Dec 6 - Sat, Dec 13
EUG
Eugene
SUN
Sun Valley
$271 Roundtrip, found 17 hours ago
$271
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Sat, Dec 6 from Eugene to Sun Valley, returning Sat, Dec 13, priced at $271 found 17 hours ago
Alaska Airlines
Fri, Dec 5 - Mon, Dec 8
EUG
Eugene
SUN
Sun Valley
$297 Roundtrip, found 1 day ago
$297
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Eugene to Sun Valley, returning Mon, Dec 8, priced at $297 found 1 day ago
Alaska Airlines
Thu, Dec 18 - Sun, Dec 28
EUG
Eugene
SUN
Sun Valley
$299 Roundtrip, found 17 hours ago
$299
Roundtrip
found 17 hours ago
Select Alaska Airlines flight, departing Thu, Dec 18 from Eugene to Sun Valley, returning Sun, Dec 28, priced at $299 found 17 hours ago
Alaska Airlines
Fri, Dec 5 - Mon, Dec 8
EUG
Eugene
SUN
Sun Valley
$304 Roundtrip, found 1 day ago
$304
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Fri, Dec 5 from Eugene to Sun Valley, returning Mon, Dec 8, priced at $304 found 1 day ago
Delta
Fri, Nov 14 - Sun, Nov 16
EUG
Eugene
SUN
Sun Valley
$334 Roundtrip, found 6 days ago
$334
Roundtrip
found 6 days ago
Select Delta flight, departing Fri, Nov 14 from Eugene to Sun Valley, returning Sun, Nov 16, priced at $334 found 6 days ago
United
Fri, Nov 14 - Sun, Nov 16
EUG
Eugene
SUN
Sun Valley
$339 Roundtrip, found 6 days ago
$339
Roundtrip
found 6 days ago
Select United flight, departing Fri, Nov 14 from Eugene to Sun Valley, returning Sun, Nov 16, priced at $339 found 6 days ago
American Airlines
Tue, Dec 23 - Sat, Dec 27
EUG
Eugene
SUN
Sun Valley
$1,879 Roundtrip, found 21 hours ago
$1,879
Roundtrip
found 21 hours ago
Select American Airlines flight, departing Tue, Dec 23 from Eugene to Sun Valley, returning Sat, Dec 27, priced at $1,879 found 21 hours ago

Frequently asked questions

How much does a flight from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN) cost?
Get a cheap one-way flight from $121 or cheap return flight from $240 from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN)?
Planning your trip for December is a good way to save, as it's the cheapest month for flights between EUG and SUN. You'll usually find the lowest fares during off-peak months.
What is the cheapest airline that flies from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN)?
Use the filters on Expedia to compare different airlines and find the cheapest carrier that'll fly you from EUG to SUN. Then, sort your results by "Price (lowest to highest)" to pick up the best deal available.
How many flights per day from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN)?
You'll have to take a flight with a layover when traveling from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN). There are no daily direct flights on this route. However, simply filter your search to include one or two stops to discover the best option for your trip.
What day of the week has the most flights from EUG to SUN?
Friday is typically the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change based on various factors, such as the season and airline.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN)?
Select a flight from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN) that leaves before 3 PM to reduce the risk of cancellations. Departures after this time have a 22% higher chance of being canceled, on average.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN) last-minute?
Last-minute fares from EUG to SUN are usually more expensive. To secure the best prices, start searching for flights well ahead of time. That being said, if you're flexible with your travel dates, you may land a cheap ticket right before you leave.
Is it cheaper to book an EUG to SUN flight and hotel package?
Compared with arranging hotels and flights separately, booking an EUG to SUN flight and hotel package with Expedia could lead to significant savings. Better yet, having everything in one easy place will take the hassle out of planning your trip. Simply pick your flights and select from our extensive range of hotels, then customize your trip with extras like tours, car rentals and activities.
Can I cancel or change the date of my flight from Mahlon Sweet Field Airport (EUG) to Friedman Memorial Airport (SUN)?
It's usually possible to cancel or reschedule your EUG to SUN flight. However, if it's been more than 24 hours since booking, additional fees may apply. Check your airline's policies in your itinerary to see what changes are allowed and if any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Eugene
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, American Airlines, Delta, United
Roundtrip price
$240
Distance
446 mi

Book with confidence

Eugene to Sun Valley Flights

The cheapest times to fly from Eugene 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 Eugene to Sun Valley are during the month of December. You can find some of the cheapest flights from Eugene to Sun Valley with Expedia's search tool and vast selection of airlines.

 

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

Sunday is one of the best days to book for cheap flights from Eugene 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 Eugene 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 Eugene to Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $121 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 Eugene 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 Eugene 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.

 

Eugene to Sun Valley Flights

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*Available to One Key members.