$135 Cheap Flights from Portland (PDX) to Sun Valley (SUN)

View $135 flight on Wed, Mar 4, 2026Opens in a new window

Popular airlines from Portland International Airport (PDX) to Sun Valley, ID (SUN-Friedman Memorial)

  • notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
  • deals illustration

    Book smarter

    Save up to 30% on select hotels after you book a flight*
  • trophy illustration

    Earn twice

    Earn your airline miles on top of our OneKeyCash
    Learn about One Key

Cheap Flights from Portland to Sun Valley (PDX-SUN)

Prices were available within the past 7 days and start at $135 for one-way flights and $269 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, Jan 10 - Wed, Jan 14
PDX
Portland
SUN
Sun Valley
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select Alaska Airlines flight, departing Sat, Jan 10 from Portland to Sun Valley, returning Wed, Jan 14, priced at $269 found 1 day ago
Hawaiian Airlines
Fri, Jan 23 - Tue, Feb 3
PDX
Portland
SUN
Sun Valley
$269 Roundtrip, found 2 days ago
$269
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Fri, Jan 23 from Portland to Sun Valley, returning Tue, Feb 3, priced at $269 found 2 days ago
Delta
Thu, Nov 20 - Sun, Nov 23
PDX
Portland
SUN
Sun Valley
$269 Roundtrip, found 1 day ago
$269
Roundtrip
found 1 day ago
Select Delta flight, departing Thu, Nov 20 from Portland to Sun Valley, returning Sun, Nov 23, priced at $269 found 1 day ago
Delta
Thu, Jan 8 - Mon, Jan 12
PDX
Portland
SUN
Sun Valley
$271 Roundtrip, found 3 days ago
$271
Roundtrip
found 3 days ago
Select Delta flight, departing Thu, Jan 8 from Portland to Sun Valley, returning Mon, Jan 12, priced at $271 found 3 days ago
Delta
Wed, Dec 10 - Mon, Dec 15
PDX
Portland
SUN
Sun Valley
$273 Roundtrip, found 3 days ago
$273
Roundtrip
found 3 days ago
Select Delta flight, departing Wed, Dec 10 from Portland to Sun Valley, returning Mon, Dec 15, priced at $273 found 3 days ago
Delta
Wed, Jan 7 - Sat, Jan 24
PDX
Portland
SUN
Sun Valley
$274 Roundtrip, found 2 days ago
$274
Roundtrip
found 2 days ago
Select Delta flight, departing Wed, Jan 7 from Portland to Sun Valley, returning Sat, Jan 24, priced at $274 found 2 days ago
Delta
Sat, Jan 10 - Fri, Jan 16
PDX
Portland
SUN
Sun Valley
$276 Roundtrip, found 6 days ago
$276
Roundtrip
found 6 days ago
Select Delta flight, departing Sat, Jan 10 from Portland to Sun Valley, returning Fri, Jan 16, priced at $276 found 6 days ago
Delta
Fri, Jan 23 - Sat, Feb 7
PDX
Portland
SUN
Sun Valley
$279 Roundtrip, found 2 days ago
$279
Roundtrip
found 2 days ago
Select Delta flight, departing Fri, Jan 23 from Portland to Sun Valley, returning Sat, Feb 7, priced at $279 found 2 days ago
United
Wed, Nov 19 - Fri, Nov 28
PDX
Portland
SUN
Sun Valley
$329 Roundtrip, found 1 day ago
$329
Roundtrip
found 1 day ago
Select United flight, departing Wed, Nov 19 from Portland to Sun Valley, returning Fri, Nov 28, priced at $329 found 1 day ago
American Airlines
Thu, Dec 25 - Tue, Dec 30
PDX
Portland
SUN
Sun Valley
$532 Roundtrip, found 8 hours ago
$532
Roundtrip
found 8 hours ago
Select American Airlines flight, departing Thu, Dec 25 from Portland to Sun Valley, returning Tue, Dec 30, priced at $532 found 8 hours ago

Alternative airports near Sun Valley

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Friedman Memorial SUN. Cheapest and Closest option available. Average driving time to city center is 23 minutes. Flights from $284
SUN
Friedman Memorial
CheapestClosest
Average driving time to city center23 min
Flights from $284

Frequently asked questions

How much does a flight from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN) cost?
Lock in a cheap one-way flight from $135 or cheap return flight from $269 from Portland Intl. Airport (PDX) 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 Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN)?
Planning your getaway for January may help you find better deals, as it's the cheapest month for flights between PDX and SUN. You'll often find the lowest fares during off-peak months.
What is the cheapest airline that flies from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN)?
To find the cheapest airline flying from PDX to SUN, use Expedia's filter tool. Tailor your search based on what's important to you, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to see the cheapest flights first.
How many flights per day from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN)?
There are no daily direct flights available from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN). But you can choose flights with layovers. Filter your search results on Expedia to include one or more stops, and you'll be on your way before you know it.
What day of the week has the most flights from PDX to SUN?
You'll typically find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during public holidays or peak travel times.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN)?
To avoid potential delays on the Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN) route, aim to fly before 3 PM. Departures after this hour have a 22% higher chance of being canceled.**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 Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN) last-minute?
Booking your flight from PDX to SUN just before your trip is generally more expensive. But if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a PDX to SUN flight and hotel package?
You'll generally save money by securing a PDX to SUN flight and hotel package compared to booking separately. In fact, you could save hundreds of dollars by bundling with Expedia. And it's easy to manage it all in one place. Once you've selected your ideal flights and accommodations, consider adding extras including tours, car rentals and activities.
Can I cancel or change the date of my flight from Portland Intl. Airport (PDX) to Friedman Memorial Airport (SUN)?
Typically, it's possible to reschedule or cancel your PDX 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 whether any costs are involved. You'll also find further details on our Customer Service portal.

Travel information

Origin airport
Portland Intl.
Destination airport
Friedman Memorial
Airlines serving
Alaska Airlines, Delta, Hawaiian Airlines, United
Roundtrip price
$268
Distance
432 mi

Book with confidence

Portland to Sun Valley Flights

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

 

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

Sunday is one of the best days to book for cheap flights from Portland 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 Portland 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 Portland to Sun Valley in 2025. You can also book with separate airlines for your outbound and return journeys, from $135 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 Portland 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 Portland 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.

 

Portland to Sun Valley Flights

Explore a world of travel with Expedia

*Available to One Key members.