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CA $194 Cheap Flights from Seattle (SEA) to Sun Valley (SUN)

View CA $194 flight on Tue, Dec 15, 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Sun Valley, ID (SUN-Friedman Memorial)

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Cheap flights from Seattle (SEA) to Sun Valley (SUN)

Prices were available within the past 7 days and start at CA $194 for one-way flights and CA $362 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $362 Roundtrip, found 13 hours ago
CA $362
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $362 found 13 hours ago
Alaska Airlines
Tue, Dec 15 - Sat, Dec 19
SEA
Seattle
SUN
Sun Valley
CA $437 Roundtrip, found 3 days ago
CA $437
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Dec 15 from Seattle to Sun Valley, returning Sat, Dec 19, priced at CA $437 found 3 days ago
Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $544 Roundtrip, found 13 hours ago
CA $544
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $544 found 13 hours ago
Alaska Airlines
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $614 Roundtrip, found 13 hours ago
CA $614
Roundtrip
found 13 hours ago
Select Alaska Airlines flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $614 found 13 hours ago
Alaska Airlines
Tue, Dec 15 - Sat, Dec 19
SEA
Seattle
SUN
Sun Valley
CA $634 Roundtrip, found 3 days ago
CA $634
Roundtrip
found 3 days ago
Select Alaska Airlines flight, departing Tue, Dec 15 from Seattle to Sun Valley, returning Sat, Dec 19, priced at CA $634 found 3 days ago
Delta
Tue, Dec 15 - Sat, Dec 19
SEA
Seattle
SUN
Sun Valley
CA $703 Roundtrip, found 3 days ago
CA $703
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Dec 15 from Seattle to Sun Valley, returning Sat, Dec 19, priced at CA $703 found 3 days ago
Delta
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $712 Roundtrip, found 13 hours ago
CA $712
Roundtrip
found 13 hours ago
Select Delta flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $712 found 13 hours ago
Delta
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $783 Roundtrip, found 13 hours ago
CA $783
Roundtrip
found 13 hours ago
Select Delta flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $783 found 13 hours ago
Delta
Tue, Dec 15 - Sat, Dec 19
SEA
Seattle
SUN
Sun Valley
CA $810 Roundtrip, found 3 days ago
CA $810
Roundtrip
found 3 days ago
Select Delta flight, departing Tue, Dec 15 from Seattle to Sun Valley, returning Sat, Dec 19, priced at CA $810 found 3 days ago
Delta
Thu, Sep 10 - Mon, Sep 14
SEA
Seattle
SUN
Sun Valley
CA $811 Roundtrip, found 13 hours ago
CA $811
Roundtrip
found 13 hours ago
Select Delta flight, departing Thu, Sep 10 from Seattle to Sun Valley, returning Mon, Sep 14, priced at CA $811 found 13 hours ago

Find the cheapest month to fly from Seattle (SEA) to Sun Valley (SUN)

October is typically the cheapest month to fly

From CA $276 - CA $483 per traveller.

Frequently asked questions

How much does a flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial) cost?
You can find one-way and return flights from SEA to SUN with Expedia. 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 our cheapest fares first, and use the Price Tracking tool to receive alerts when SEA to SUN ticket fares go up or down.
What is the cheapest month to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The cheapest months to fly from SEA to SUN are typically during off-peak season 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 are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Enter SEA to SUN and your travel dates, then apply the 'Nonstop' filter to see only direct flights.
What is the cheapest airline that flies from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Delta is one of the cheapest airlines offering nonstop return flights from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN), with tickets starting from around CA$136 for flights that can be booked for departure within the next year. American Airlines offers one of the cheapest connecting return flights from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN) starting from around CA$370. These prices are per adult for economy/coach class. 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.
How do I find cheap flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
To find a cheap flight from Seattle, WA (SEA-Seattle - Tacoma 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 airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The best airline to fly with from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial) will differ from traveler to traveler. If you like to fly early, Alaska Airlines offers early morning flights. If price is the most important factor, Delta typically offers the lowest fares. United offers the most daily flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Seattle, WA (SEA-Seattle - Tacoma 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.
How many flights per day from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
There are around 21 connecting flights per day from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN). Some common connection points include San Francisco Intl. (SFO), Denver Intl. (DEN), and Salt Lake City Intl. (SLC).
What is the earliest flight from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The earliest flight from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN) typically departs around 12:05 AM local time, operated by American Airlines. This is a seasonal service, active in February and March. An early departure like this can help you make the most of your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
You'll find the most flights from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN) on a Friday, with around 16 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include United, Delta, and Alaska Airlines. Fridays offer notably more flight options compared to other days of the week, making it a great day to plan your trip.
What are the most popular departure times for flights from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
The most popular departure times for flights from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN) are in the early morning, from 6am to 9am. Many major carriers, including Alaska Airlines, United and Delta, offer flights during this window. Many travelers prefer this because it allows for an early arrival at your destination, giving you more time to enjoy your day in Sun Valley.
How long does it take to fly from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
A nonstop flight from Seattle - Tacoma Intl. (SEA) to Friedman Memorial (SUN) typically takes around 1 hour 48 minutes. This route covers a distance of approximately 761 kilometers. If you opt for a one-stop flight, your travel time will be longer, usually around 7 hours 48 minutes. Flights with two or more stops take even longer, averaging about 13 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some extra time when planning your trip.
Can you fly business or first class from Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
Yes, you can fly business class or first class between SEA and SUN. You can fly business class with Delta.First class cabins are available on Alaska Airlines, United, Delta, and American Airlines.
How do I earn miles on a Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight with Expedia?
It's easy to earn miles on a Seattle, WA (SEA-Seattle - Tacoma 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, ID (SUN) from Seattle, WA (SEA)?
If you're planning to travel to Sun Valley from Seattle - Tacoma Intl. (SEA), you can fly directly into Friedman Memorial (SUN) which offers domestic flights and connections. Some flights may connect through major hubs like San Francisco Intl. (SFO), Portland Intl. (PDX), or Los Angeles Intl. (LAX) 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial) at the last minute?
Typically, booking a last minute flight from Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial) flight and hotel package?
Securing a Seattle, WA (SEA-Seattle - Tacoma 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 Seattle, WA (SEA-Seattle - Tacoma Intl.) to Sun Valley, ID (SUN-Friedman Memorial)?
If you booked your Seattle, WA (SEA-Seattle - Tacoma 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
Seattle - Tacoma Intl.
Destination airport
Friedman Memorial
Roundtrip price
CA $362
Distance
757 km
Average flight time
2 hours 37 mins

Book with confidence

Seattle to Hailey Flights

The easy way to book your flights from Seattle to Sun Valley 

With Expedia, it’s simple to find and book flights to Sun Valley from Seattle whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Friedman Memorial, too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Seattle to Sun Valley today, tomorrow, or this week.  

 

Save dollars with cheap flights from Seattle - Tacoma Intl., SEA to Friedman Memorial, SUN 

Sort your search results by price to find great deals on your flight from Seattle to Sun Valley—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Sun Valley from Seattle currently is just CA $362 rising to CA $811.  

Here are more money-saving tips: 

  • Fly in September when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Sun Valley  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Sun Valley from Seattle 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Sun Valley with Expedia today.

Seattle to Hailey Flights

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