Title: CA $176 Cheap Flights from Seattle (SEA) to Sun Valley (SUN) - Expedia.ca ![Sun Valley showing snow and mountains](https://images.trvl-media.com/place/601721/51c95a5a-e6e3-4998-9d4d-2f4efc0584d4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) Photo by Sun Valley Resort ![](https://images.trvl-media.com/place/601721/51c95a5a-e6e3-4998-9d4d-2f4efc0584d4.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $176 Cheap Flights from Seattle (SEA) to Sun Valley (SUN) [View CA $176 flight on Sat, Feb 28, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:SEA,to:SUN,departure:28/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:175.70&airProductToken=AQo3CjUIxJgBEgQ0NDU4GJIBIJJtKOqxhgMw0bKGAzhFQABYAWoJTUFJTkJBU0lDcghWQVZTSDNCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Leaving from Going to Departing Returning Add a place to stay Add a car Direct flights only ## Popular airlines from Seattle-Tacoma International Airport (SEA) to Sun Valley, ID (SUN-Friedman Memorial) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:SUN,departure:21/02/2026TANYT&leg2=from:SUN,to:SEA,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:SUN,departure:21/02/2026TANYT&leg2=from:SUN,to:SEA,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:SUN,departure:21/02/2026TANYT&leg2=from:SUN,to:SEA,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_DL.svg) Delta [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:SUN,departure:21/02/2026TANYT&leg2=from:SUN,to:SEA,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_HA.svg) Hawaiian Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:SEA,to:SUN,departure:21/02/2026TANYT&leg2=from:SUN,to:SEA,departure:28/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"HA"}}]) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__notification.svg) ### Be in the know Get alerts if flight prices drop or rise\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 30% on select hotels after you book a flight\* - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__trophy.svg) ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Seattle (SEA) to Sun Valley (SUN) Prices were available within the past 7 days and start at CA $176 for one-way flights and CA $296 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Mar 14 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $296 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:14/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:295.50&airProductToken=AQowCi4IwaYBEgQyMTk5GJIBIJJtKIfOhwMw5s6HAzhYQABYAWoCU1ZyCE5IMkVYVUJOCjAKLgjBpgESBDIyMjUYkm0gkgEo8v-HAzDpgIgDOFhAAFgBagJTVnIITkgyRVhVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Mar 14 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $309 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:14/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:308.80&airProductToken=AQo3CjUIxJgBEgQzOTI0GJIBIJJtKJPPhwMw8s-HAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTSDNCQwpuCjUIxJgBEgQ0MDE5GJJtIPISKMD8hwMwhf2HAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTSDNCQwo1CMSYARIEMjgxNxjyEiCSASju_YcDMPP-hwM4RUABWAFqCU1BSU5CQVNJQ3IIVkZWU0gzQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, Mar 13 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $325 Roundtrip found 13 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:13/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:324.10&airProductToken=AQowCi4IwaYBEgQyMjQ0GJIBIJJtKJfGhwMw9saHAzhYQABYAWoCU1ZyCE9IMkVBVUJOCjAKLgjBpgESBDIzNDUYkm0gkgEomPyHAzCK_YcDOFhAAFgBagJTVnIIT0gyRVhVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Mar 13 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $338 Roundtrip found 13 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:13/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:337.60&airProductToken=AQo3CjUIxJgBEgQzOTI0GJIBIJJtKPPDhwMw0sSHAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTQTBCQwpuCjUIxJgBEgQ0MDE5GJJtIPISKMD8hwMwhf2HAzhFQABYAWoJTUFJTkJBU0lDcghWRlZTSDNCQwo1CMSYARIEMjgxNxjyEiCSASju_YcDMPP-hwM4RUABWAFqCU1BSU5CQVNJQ3IIVkZWU0gzQkMSCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Fri, Mar 13 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $352 Roundtrip found 13 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:13/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:352.00&airProductToken=AQowCi4IwaYBEgQyMTk5GJIBIJJtKOfChwMwxsOHAzhYQABYAWoCU1ZyCFZIMkVBVUJOCjAKLgjBpgESBDIzNDUYkm0gkgEomPyHAzCK_YcDOFhAAFgBagJTVnIIT0gyRVhVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Sat, Mar 14 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $355 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:14/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:354.28&airProductToken=AQo3CjUIxJgBEgQzOTI0GJIBIJJtKJPPhwMw8s-HAzhFQABYAWoJTUFJTkJBU0lDcghWQVZTSDNCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Mar 14 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $368 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:14/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:367.58&airProductToken=AQowCi4IwaYBEgQyMTk5GJIBIJJtKIfOhwMw5s6HAzhYQABYAWoCU1ZyCE5IMk9YVUJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, Mar 4 - Mon, Mar 9 SEA Seattle SUN Sun Valley CA $378 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:04/03/2026TANYT&leg2=from:SUN,to:SEA,departure:09/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:377.20&airProductToken=AQowCi4IwaYBEgQyMTk5GJIBIJJtKIPehgMw4t6GAzhYQABYAWoCU1ZyCFZIMkVBVUJOCjAKLgjBpgESBDIxMDkYkm0gkgEooJqHAzCXm4cDOFhAAFgBagJTVnIIT0gyRUFVQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Fri, Mar 13 - Wed, Mar 18 SEA Seattle SUN Sun Valley CA $383 Roundtrip found 13 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:13/03/2026TANYT&leg2=from:SUN,to:SEA,departure:18/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:382.03&airProductToken=AQo3CjUIxJgBEgQzOTI0GJIBIJJtKPPDhwMw0sSHAzhFQABYAWoJTUFJTkJBU0lDcghWQVZTQTBCQxIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sat, Feb 28 - Mon, Mar 2 SEA Seattle SUN Sun Valley CA $609 Roundtrip found 17 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:SEA,to:SUN,departure:28/02/2026TANYT&leg2=from:SUN,to:SEA,departure:02/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:608.50&airProductToken=AQpoCjIIwYIBEgQzMjM1GJIBIO-5ASiEtIYDMLK1hgM4QkAAWAFqBUJBU0lDcghPVkFJSlNCWAoyCMGCARIENjQ4OBjvuQEgkm0o5bWGAzDutoYDOEJAAVgBagVCQVNJQ3IITlVCV1pTQloSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ## Find the cheapest month to fly from Seattle (SEA) to Sun Valley (SUN) ### December is typically the cheapest month to fly From CA $237 - CA $1,298 per traveller. __Flight from Seattle to Sun Valley (SEA - SUN) route information__ | Origin airport | Seattle - Tacoma Intl. | | ------------------- | ---------------------- | | Destination airport | Friedman Memorial | | Airlines serving | Alaska Airlines | | Roundtrip price | CA $296 | | Distance | 757 km | | Average flight time | 2 hours 37 mins | ## 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 $296 rising to CA $609\. Here are more money-saving tips: - Fly in March 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. ## Frequently asked questions ### How much is a flight from Sea-Tac Airport to Friedman Memorial Airport? ### Do I need to pay a cancellation fee if I cancel my flight from Sea-Tac Airport to Friedman Memorial Airport (SUN)? ### How do I find cheap flights from SEA to Friedman Memorial Airport that have flexible change policies? ### How many hours is the flight from Sea-Tac Airport to Friedman Memorial Airport (SUN)? ### How far is the flight from Sea-Tac Airport to Friedman Memorial Airport? ### Which airlines fly direct from Sea-Tac Airport to SUN? ### Are Seattle - Tacoma Intl. Airport (SEA) to SUN flight tickets cheaper when they're purchased at the last minute? ## Explore a world of travel with Expedia - Flights - [Flights from Boston to Southwest Idaho ](https://www.expedia.ca/lp/flights/178239/6054119/boston-to-southwest-idaho) - [Flights from Calgary to Southern Idaho ](https://www.expedia.ca/lp/flights/178245/6229413/calgary-to-southern-idaho) - [Flights from Las Vegas to Southwest Idaho ](https://www.expedia.ca/lp/flights/178276/6054119/las-vegas-to-southwest-idaho) - [Flights from Portland to Southwest Idaho ](https://www.expedia.ca/lp/flights/178299/6054119/portland-to-southwest-idaho) - [Flights from Portland to Southern Idaho ](https://www.expedia.ca/lp/flights/178299/6229413/portland-to-southern-idaho) - [Flights from Seattle to Southwest Idaho ](https://www.expedia.ca/lp/flights/178307/6054119/seattle-to-southwest-idaho) - [Flights from Vancouver to Southwest Idaho ](https://www.expedia.ca/lp/flights/178315/6054119/vancouver-to-southwest-idaho) - [Flights from Des Moines to Southwest Idaho ](https://www.expedia.ca/lp/flights/601690/6054119/des-moines-to-southwest-idaho) - [Flights from Colorado Springs to Southern Idaho ](https://www.expedia.ca/lp/flights/602991/6229413/colorado-springs-to-southern-idaho) - [Flights from Albany (ALB) to Boise (BOI) ](https://www.expedia.ca/lp/flights/alb/boi/albany-to-boise) - [Flights from Alicante (ALC) to Boise (BOI) ](https://www.expedia.ca/lp/flights/alc/boi/alicante-to-boise) - [Flights from Amsterdam (AMS) to Boise (BOI) ](https://www.expedia.ca/lp/flights/ams/boi/amsterdam-to-boise) - [Flights from Astoria (AST) to Boise (BOI) ](https://www.expedia.ca/lp/flights/ast/boi/astoria-to-boise) - [Flights from Atlanta (ATL) to Boise (BOI) ](https://www.expedia.ca/lp/flights/atl/boi/atlanta-to-boise) - [Flights from Austin (AUS) to Boise (BOI) ](https://www.expedia.ca/lp/flights/aus/boi/austin-to-boise) - [Flights from Bucaramanga (BGA) to Boise (BOI) ](https://www.expedia.ca/lp/flights/bga/boi/bucaramanga-to-boise) - [Flights from Bangor (BGR) to Boise (BOI) ](https://www.expedia.ca/lp/flights/bgr/boi/bangor-to-boise) - [Flights from Bemidji (BJI) to Boise (BOI) ](https://www.expedia.ca/lp/flights/bji/boi/bemidji-to-boise) - [Flights from Bellingham (BLI) to Twin Falls (TWF) ](https://www.expedia.ca/lp/flights/bli/twf/bellingham-to-twin-falls) - [Flights from Nashville (BNA) to Boise (BOI) ](https://www.expedia.ca/lp/flights/bna/boi/nashville-to-boise) - [Flights from Boston (BOS) to Challis (CHL) ](https://www.expedia.ca/lp/flights/bos/chl/boston-to-challis) - [Flights from Burlington (BTV) to Boise (BOI) ](https://www.expedia.ca/lp/flights/btv/boi/burlington-to-boise) - [Flights from Bursa (BTZ) to Boise (BOI) ](https://www.expedia.ca/lp/flights/btz/boi/bursa-to-boise) - [Flights from Chittagong (CGP) to Boise (BOI) ](https://www.expedia.ca/lp/flights/cgp/boi/chittagong-to-boise) - [Flights from Sault Ste. 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