Title: CA $125 Cheap Flights from Washington (WAS) to Seattle (SEA) - Expedia.ca ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://images.trvl-media.com/place/178307/82efb684-8d05-4b09-b7ea-52d5ab4ea1ac.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # CA $125 Cheap Flights from Washington (WAS) to Seattle (SEA) [View CA $125 flight on Sat, Feb 7, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:BWI,to:SEA,departure:07/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:124.20&airProductToken=AQpoCjIIwYIBEgQyMzE2GMFFIOKaASiixoQDMIbHhAM4QkAAWAFqBUJBU0lDcghPVkFaWk5CVgoyCMGCARIEMTU1ORjimgEgkgEo18eEAzC9yoQDOEJAAVgBagVCQVNJQ3IIT1ZBWlpOQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) - [Roundtrip](?flightType=roundtrip) - [One-way](?flightType=oneway) - [Multi-city](?flightType=multicity) ### Travellers Adults ChildrenAges 2 to 17 InfantsYounger than 2 EconomyPremium economyBusiness classFirst class Flight 1 Leaving from Going to Departing Flight 2 Leaving from Going to Departing ## Popular airlines from Washington to Seattle, WA (SEA-Seattle - Tacoma Intl.) - ![Alaska Airlines](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:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![American Airlines](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:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AA"}}]) - ![Delta](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:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![United](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:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Sun Country Airlines](https://a.travel-assets.com/air/airlines/sy_sq.svg) Sun Country Airlines [](https://www.expedia.ca/Flights-Search?leg1=from:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SY"}}]) - ![Hawaiian Airlines](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:WAS,to:SEA,departure:02/02/2026TANYT&leg2=from:SEA,to:WAS,departure:09/02/2026TANYT&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 Washington (WAS) to Seattle (SEA) Prices were available within the past 7 days and start at CA $125 for one-way flights and CA $248 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Feb 18 - Wed, Feb 25 BWI Baltimore SEA Seattle CA $248 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:18/02/2026TANYT&leg2=from:SEA,to:BWI,departure:25/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:247.40&airProductToken=AQpmCjEIwYIBEgQzODA0GMFFIK4cKOzDhQMwgsWFAzhCQABYAWoFQkFTSUNyCE9WQVpaTkJWCjEIwYIBEgQzMTQyGK4cIJIBKNzFhQMw-MeFAzhCQAFYAWoFQkFTSUNyCE9WQVpaTkJWCmYKMQjBggESBDEwNDcYkgEgrhwop4uGAzCnjYYDOEJAAFgBagVCQVNJQ3IIT1ZBWlpOQlYKMQjBggESBDM2NzkYrhwgwUUomI6GAzCSj4YDOEJAAVgBagVCQVNJQ3IIT1ZBWlpOQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Sun, Feb 15 - Wed, Feb 18 BWI Baltimore SEA Seattle CA $249 Roundtrip found 4 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:15/02/2026TANYT&leg2=from:SEA,to:BWI,departure:18/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:248.50&airProductToken=AQpoCjIIwYIBEgQxNTg4GMFFIOKaASjCnIUDMKWdhQM4QkAAWAFqBUJBU0lDcghPVkFaWk5CVgoyCMGCARIEMTcwNRjimgEgkgEo952FAzDjoIUDOEJAAVgBagVCQVNJQ3IIT1ZBWlpOQlYKZgoxCMGCARIEMTA0NxiSASCuHCjHvIUDMMe-hQM4QkAAWAFqBUJBU0lDcghPVkFaWk5CVgoxCMGCARIEMzY3ORiuHCDBRSi4v4UDMLLAhQM4QkABWAFqBUJBU0lDcghPVkFaWk5CVhIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Mar 18 - Wed, Mar 25 BWI Baltimore SEA Seattle CA $249 Roundtrip found 8 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:18/03/2026TANYT&leg2=from:SEA,to:BWI,departure:25/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:248.90&airProductToken=AQpmCjEIwYIBEgQzNTAxGMFFIK4cKK3-hwMww_-HAzhCQABYAWoFQkFTSUNyCE9WQVpaTkJWCjEIwYIBEgQzMTQyGK4cIJIBKKCAiAMwvIKIAzhCQAFYAWoFQkFTSUNyCE9WQVpaTkJWCmYKMQjBggESBDExMDYYkgEgrhwo68WIAzDrx4gDOEJAAFgBagVCQVNJQ3IIT1ZBWlpOQlYKMQjBggESBDM2NzkYrhwgwUUoiMmIAzCCyogDOEJAAVgBagVCQVNJQ3IIT1ZBWlpOQlYSCggBEAEYASoCQUEYASIECAEQASgCKAMoBDAL) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, Feb 18 - Wed, Feb 25 BWI Baltimore SEA Seattle CA $263 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:18/02/2026TANYT&leg2=from:SEA,to:BWI,departure:25/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:262.07&airProductToken=AQpuCjUIxJgBEgQxMTc2GMFFIPISKLW-hQMw6MCFAzhFQABYAWoJTUFJTkJBU0lDcghWQVZOQTBCUQo1CMSYARIEMTcxNxjyEiCSASjCwoUDMM7DhQM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQlESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Wed, Feb 25 - Fri, Feb 27 BWI Baltimore SEA Seattle CA $264 Roundtrip found 7 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:25/02/2026TANYT&leg2=from:SEA,to:BWI,departure:27/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:263.48&airProductToken=AQpmCjEIwYIBEgQzODA0GMFFIK4cKMyShgMw4pOGAzhCQABYAWoFQkFTSUNyCE9WQVpaTkJWCjEIwYIBEgQzMTQyGK4cIJIBKLyUhgMw2JaGAzhCQAFYAWoFQkFTSUNyCE9WQVpaTkJWEgoIARABGAEqAkFBGAEiBAgBEAEoAigDKAQwCw) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, Feb 18 - Wed, Feb 25 BWI Baltimore SEA Seattle CA $274 Roundtrip found 3 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:18/02/2026TANYT&leg2=from:SEA,to:BWI,departure:25/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:273.20&airProductToken=AQpvCjYIxJgBEgQyNjAxGMFFIOO0ASj0vYUDMNq-hQM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQlEKNQjEmAESAzczNBjjtAEgkgEoir-FAzDCwYUDOEVAAVgBaglNQUlOQkFTSUNyCFZBVk5BMEJRCm8KNQjEmAESAzgxMBiSASDjtAEok5aGAzCSmIYDOEVAAFgBaglNQUlOQkFTSUNyCFZBVk5BMEJRCjYIxJgBEgQxNTQ2GOO0ASDBRSiemYYDMISahgM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQlESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Wed, Feb 25 - Fri, Feb 27 BWI Baltimore SEA Seattle CA $274 Roundtrip found 7 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:25/02/2026TANYT&leg2=from:SEA,to:BWI,departure:27/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:273.60&airProductToken=AQpuCjUIxJgBEgQxMTc2GMFFIPISKJWNhgMwyI-GAzhFQABYAWoJTUFJTkJBU0lDcghWQVZOQTBCUQo1CMSYARIEMjk5NRjyEiCSASiDkIYDMJGRhgM4RUABWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQlEKbwo1CMSYARIDODEyGJIBIOO0ASjIpIYDMMOmhgM4RUAAWAFqCU1BSU5CQVNJQ3IIVkFWTkEwQlEKNgjEmAESBDI0ODAY47QBIMFFKLmnhgMwkqiGAzhFQAFYAWoJTUFJTkJBU0lDcghWQVZOQTBCURIKCAEQARgBKgJETBgBIgQIARABKAIoAygEMAE) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Sat, Aug 29 - Wed, Sep 2 BWI Baltimore SEA Seattle CA $275 Roundtrip found 1 day ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:29/08/2026TANYT&leg2=from:SEA,to:BWI,departure:02/09/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:274.10&airProductToken=AQovCi0IwaYBEgMzNzkYwUUgkgEozrOWAzCttpYDOFhAAFgBagJTVnIIT0gyT0FWQk4KLwotCMGmARIDMzQ0GJIBIMFFKMDjlgMw7eWWAzhYQABYAWoCU1ZyCE9IMk9BVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Hawaiian Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/HA.gif) Wed, Mar 18 - Mon, Mar 23 IAD Washington SEA Seattle CA $330 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:IAD,to:SEA,departure:18/03/2026TANYT&leg2=from:SEA,to:IAD,departure:23/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:329.80&airProductToken=AQoiCiAIyIIBEgQ0OTY5GIgYIJIBKM_-hwMwroGIAzhVQABYAQoiCiAIyIIBEgQ2NzE4GJIBIIgYKLi5iAMw5LuIAzhVQABYARIKCAEQARgBKgJIQRgBIgQIARABKAQwAQ) ![United](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/UA.gif) Thu, Feb 5 - Sat, Feb 21 BWI Baltimore SEA Seattle CA $436 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BWI,to:SEA,departure:05/02/2026TANYT&leg2=from:SEA,to:BWI,departure:21/02/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:435.80&airProductToken=AQpDCh8I1YIBEgM1MDQYwUUgsnEoxrGEAzC5tIQDOEtAAFgBCiAI1YIBEgQ1NTc5GLJxIJIBKOu0hAMw-7WEAzhLQAFYAQoiCiAI1YIBEgQxNDI0GJIBIMFFKLDmhQMwy-uFAzhHQABYARIKCAEQARgBKgJVQRgBIgQIARABKAQwAQ) __Flight from Baltimore to Seattle (BWI - SEA) route information__ | Origin airport | Baltimore Washington Intl. Thurgood Marshall | | ------------------- | ------------------------------------------------------------------ | | Destination airport | Seattle - Tacoma Intl. | | Airlines serving | Alaska Airlines, American Airlines, Delta, JetBlue Airways, United | | Roundtrip price | CA $247 | | Distance | 3725 km | ## Maryland to Seattle Flights **The easy way to book your flights from Washington to Seattle** With Expedia, it’s simple to find and book flights to Seattle from Washington 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 Seattle - Tacoma Intl., 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 Washington to Seattle today, tomorrow, or this week. **Save dollars with cheap flights from WAS-All Airports, WAS to Seattle - Tacoma Intl., SEA** Sort your search results by price to find great deals on your flight from Washington to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Washington currently is just CA $248 rising to CA $436\. Here are more money-saving tips: - Fly in February when flight prices are normally at their lowest - Book about a month to 6 weeks before you travel for the best prices to Seattle - 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 Seattle from Washington** 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 Seattle with Expedia today. ## Frequently asked questions ### How much is a flight from Washington, DC (WAS-All Airports) to Seattle - Tacoma Intl. Airport (SEA)? ### Do I need to pay a cancellation fee if I cancel my flight from Washington, DC (WAS-All Airports) to SEA? ### How do I find cheap flights from Washington, DC (WAS-All Airports) to SEA that have flexible change policies? ### How far is the flight from Washington, DC (WAS-All Airports) to SEA? ### Which airlines fly direct from Washington, DC (WAS-All Airports) to Sea-Tac Airport? ### Are Washington, DC (WAS-All Airports) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute? \*Available to Expedia members.