Title: £99 Cheap Flights from Washington to Seattle (DCA to SEA) - Expedia.co.uk ![](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) # £99 Cheap Flights from Washington (DCA) to Seattle (SEA) [View £99 flight on Mon, 20 Oct 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:DCA,to:SEA,departure:20/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:98.70&airProductToken=AQpkCjAIwYIBEgQyOTAzGEMgrhwohfT6AjCC9foCOEJAAFgBagVCQVNJQ3IIT1VBSFpTQlgKMAjBggESAzU2NhiuHCCSASi_-PoCMNH6-gI4QkABWAFqBUJBU0lDcghPVkFJS1NCWBIKCAEQARgBKgJBQRgBIgQIARABKAIoAygEMAs) - [Return](?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 Ronald Reagan National Airport (DCA) to Seattle-Tacoma International Airport (SEA) - ![Alaska Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AS.svg) Alaska Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AS"}}]) - ![Frontier Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_F9.svg) Frontier Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"F9"}}]) - ![American Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AA.svg) American Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&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.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![United](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_UA.svg) United [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"UA"}}]) - ![Southwest Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_WN.svg) Southwest Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"WN"}}]) - ![JetBlue Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_B6.svg) JetBlue Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:dca,to:sea,departure:29/09/2025TANYT&leg2=from:sea,to:dca,departure:06/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"B6"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 25% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.co.uk/login) ## Cheap Flights from Washington (DCA) to Seattle (SEA) Prices were available within the past 7 days and start at £99 for one-way flights and £205 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 13 Nov - Sat, 15 Nov DCA Washington SEA Seattle £205 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:13/11/2025TANYT&leg2=from:SEA,to:DCA,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:204.10&airProductToken=AQosCioIwaYBEgExGEMgkgEozPv8AjC3_vwCOFhAAFgBagJTVnIIUUgyRUFWQk4KLAoqCMGmARIBNBiSASBDKPGT_QIwoZb9AjhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £223 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:222.40&airProductToken=AQosCioIwaYBEgExGEMgkgEosNL7AjCb1fsCOFhAAFgBagJTVnIITkgyRUFWQk4KLAoqCMGmARIBMhiSASBDKOCl_AIwk6j8AjhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 13 Nov - Sat, 15 Nov DCA Washington SEA Seattle £227 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:13/11/2025TANYT&leg2=from:SEA,to:DCA,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:226.20&airProductToken=AQosCioIwaYBEgExGEMgkgEozPv8AjC3_vwCOFhAAFgBagJTVnIIUUgyT0FWQk4KXwovCMGmARIEMzM5MhiSASDvuAEooJL9AjDZkv0COFhAAFgBagJTVnIIT0gyT0FKQk4KLAjBpgESAjEwGO-4ASBDKMOT_QIw7JX9AjhYQAFYAWoCU1ZyCE9IMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Thu, 13 Nov - Sat, 15 Nov DCA Washington SEA Seattle £237 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:13/11/2025TANYT&leg2=from:SEA,to:DCA,departure:15/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:236.60&airProductToken=AQpeCisIwaYBEgE5GEMg77gBKJ2A_QIwgoP9AjhYQABYAWoCU1ZyCFFIMk9BSkJOCi8IwaYBEgQzMDA4GO-4ASCSASjkg_0CMKSE_QI4WEABWAFqAlNWcghRSDJPQUpCTgpfCi8IwaYBEgQzMzkyGJIBIO-4ASigkv0CMNmS_QI4WEAAWAFqAlNWcghPSDJPQUpCTgosCMGmARICMTAY77gBIEMow5P9AjDslf0COFhAAVgBagJTVnIIT0gyT0FKQk4SCggBEAEYASoCQVMYASIECAEQASgCKAMoBDAB) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £244 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:243.40&airProductToken=AQpcCisIwaYBEgIxNRhDIJJoKOvS-wIwxdX7AjhYQABYAWoCU1ZyCE9IMkVYVUJOCi0IwaYBEgM2MjIYkmggkgEoxNb7AjCF2PsCOFhAAVgBagJTVnIIT0gyRVhWQk4KLAoqCMGmARIBMhiSASBDKOCl_AIwk6j8AjhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £245 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:244.50&airProductToken=AQosCioIwaYBEgExGEMgkgEosNL7AjCb1fsCOFhAAFgBagJTVnIITkgyT0FWQk4KXwovCMGmARIEMzM5MhiSASDvuAEo4KH8AjCZovwCOFhAAFgBagJTVnIIT0gyT0FKQk4KLAjBpgESAjEwGO-4ASBDKIOj_AIwrKX8AjhYQAFYAWoCU1ZyCE9IMk9BSkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £258 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:257.40&airProductToken=AQpcCisIwaYBEgIxNRhDIJJoKOvS-wIwxdX7AjhYQABYAWoCU1ZyCE9IMkVYVUJOCi0IwaYBEgM1NzQYkmggkgEomdj7AjDW2fsCOFhAAVgBagJTVnIIT0gyRVhWQk4KLAoqCMGmARIBNBiSASBDKLGj_AIw4aX8AjhYQABYAWoCU1ZyCFFIMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £260 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:260.00&airProductToken=AQosCioIwaYBEgEzGEMgkgEozNb7AjC32fsCOFhAAFgBagJTVnIIU0gyRUFWQk4KLAoqCMGmARIBMhiSASBDKOCl_AIwk6j8AjhYQABYAWoCU1ZyCE9IMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![Alaska Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AS.gif) Wed, 29 Oct - Wed, 5 Nov DCA Washington SEA Seattle £274 Return found 2 hours ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/10/2025TANYT&leg2=from:SEA,to:DCA,departure:05/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:274.00&airProductToken=AQosCioIwaYBEgEzGEMgkgEozNb7AjC32fsCOFhAAFgBagJTVnIIU0gyRUFWQk4KLAoqCMGmARIBNBiSASBDKLGj_AIw4aX8AjhYQABYAWoCU1ZyCFFIMkVBVkJOEgoIARABGAEqAkFTGAEiBAgBEAEoAigDKAQwAQ) ![JetBlue Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/b6.gif) Mon, 29 Sept - Tue, 7 Oct DCA Washington SEA Seattle £303 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:DCA,to:SEA,departure:29/09/2025TANYT&leg2=from:SEA,to:DCA,departure:07/10/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:302.50&airProductToken=AQqNAQosCMJsEgQxMjU0GEMgqVEotoX5AjCDhvkCOExAAFgBagJETnIIUEk0UVVFTDEKLgjCbBIEMTMxOBipUSDBkwEo74f5AjC-iPkCOExAAVgBagJETnIIUEk0UVVFTDEKLQjCbBIDMzk3GMGTASCSASjUi_kCMM-O-QI4TEABWAFqAkROcghQSTRRVUVMMRIKCAEQARgBKgJCNhgBIgQIARABKAIoBCgGMAE) ## Find the cheapest month to fly from Washington (DCA) to Seattle (SEA) ### November is typically the cheapest month to fly From £102 - £408 per traveller. Flight from Washington to Seattle route information | Origin airport | Ronald Reagan Washington National | | --- | --- | | Destination airport | Seattle - Tacoma Intl. | | Airlines serving | Alaska Airlines | | Return price | £204 | | Distance | 3715 km | | Average flight time | 3 hours 37 mins | ## Compare flights from Washington to Seattle easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Seattle. Operating between them 10 flights per day, 20 airlines cover the route. And JAL, Alaska Airlines, Delta Air Lines, Hawaiian Airlines, Korean Air, Air Tahiti Nui, United Airlines fly direct, getting you to Seattle - Tacoma Intl. in just 5hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Ronald Reagan Washington National to Seattle - Tacoma Intl..   To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights.  Grab a great deal on your flight from Ronald Reagan Washington National (DCA) to Seattle - Tacoma Intl. (SEA) The easiest way to view the best deals on flights from Washington to Seattle today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Ronald Reagan Washington National to Seattle - Tacoma Intl. start at just £205 and range up to £303.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Washington and Seattle - booking your flight during November, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Washington to Seattle flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Ronald Reagan Washington National to Seattle - Tacoma Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.   Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.   ## Frequently asked questions ### How much is a flight from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA)? > Round-trip flights from National Airport to Sea-Tac Airport start from £205. This price is based on fares advertised within the last 7 days on Expedia for flights departing within the next year — book today to avoid missing out. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from National Airport to Sea-Tac Airport? > The majority of flights can be conveniently cancelled online, but whether or not you incur a fee varies between airlines. If you do have to cancel your getaway, follow the easy instructions in the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033). ### How do I find cheap flights from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport that have flexible change policies? > Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from DCA to Sea-Tac Airport? > It's around 3,700 kilometres from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA), so you'll be strapped into your seat for a while. Keep yourself entertained with things like your e-reader or the latest bestseller. ### Which airlines fly direct from National Airport to Seattle - Tacoma Intl. Airport (SEA)? > Check out the fares with Alaska Airlines (AS) if you want to fly straight from Ronald Reagan Washington National Airport (DCA) to Sea-Tac Airport. This popular carrier operates 60 flights monthly, so you're sure to find one that suits your schedule. ### Are Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute? > Late planners can sometimes score a bargain, with some of the cheapest airfares from Ronald Reagan Washington National Airport (DCA) to Seattle - Tacoma Intl. Airport (SEA) showing up a few weeks before the date of departure. If you'd rather book ahead, Expedia compares and updates the best flight deals continually — as early as a year in advance in some cases. It depends on the carrier though, as not all airlines advertise prices that far in advance. ## Explore a world of travel with Expedia - Trending Routes - Trending Flights - Top Flights Destinations - Related Airlines - Nearby Airports - Cheap Flights from Other Airports - Expedia's Latest Trends ### Top Routes from Washington - [Washington to Greensboro (DCA - GSO)](https://expedia.co.uk/lp/flights/dca/gso/washington-to-greensboro) - [Washington to Florence (DCA - FLR)](https://expedia.co.uk/lp/flights/dca/flr/washington-to-florence) - [Washington to Reykjavik (DCA - KEF)](https://expedia.co.uk/lp/flights/dca/kef/washington-to-reykjavik) - [Washington to New York (DCA - JFK)](https://expedia.co.uk/lp/flights/dca/jfk/washington-to-new-york) - [Washington to Nashville (DCA - BNA)](https://expedia.co.uk/lp/flights/dca/bna/washington-to-nashville) - [Washington to London (DCA - LHR)](https://expedia.co.uk/lp/flights/dca/lhr/washington-to-london) - [Washington to Bari (DCA - BRI)](https://expedia.co.uk/lp/flights/dca/bri/washington-to-bari) - [Washington to Orlando (DCA - MCO)](https://expedia.co.uk/lp/flights/dca/mco/washington-to-orlando) ### Top Routes to Seattle - [Newark Liberty Intl. Airport to Seattle (EWR - SEA)](https://expedia.co.uk/lp/flights/ewr/sea/newark-liberty-intl-airport-to-seattle) - [Los Angeles to Seattle (LAX - SEA)](https://expedia.co.uk/lp/flights/lax/sea/los-angeles-to-seattle) - [Bristol to Seattle (BRS - SEA)](https://expedia.co.uk/lp/flights/brs/sea/bristol-to-seattle) - [London to Seattle (LCY - SEA)](https://expedia.co.uk/lp/flights/lcy/sea/london-to-seattle) - [Boston to Seattle (BOS - SEA)](https://expedia.co.uk/lp/flights/bos/sea/boston-to-seattle) - [New York to Seattle (LGA - SEA)](https://expedia.co.uk/lp/flights/lga/sea/new-york-to-seattle) - [Leeds to Seattle (LBA - SEA)](https://expedia.co.uk/lp/flights/lba/sea/leeds-to-seattle) - [Edinburgh to Seattle (EDI - SEA)](https://expedia.co.uk/lp/flights/edi/sea/edinburgh-to-seattle) - [New York to Seattle (JFK - SEA)](https://expedia.co.uk/lp/flights/jfk/sea/new-york-to-seattle) - [Dublin to Seattle (DUB - SEA)](https://expedia.co.uk/lp/flights/dub/sea/dublin-to-seattle) - [Birmingham to Seattle (BHX - SEA)](https://expedia.co.uk/lp/flights/bhx/sea/birmingham-to-seattle) - [Newcastle to Seattle (NCL - SEA)](https://expedia.co.uk/lp/flights/ncl/sea/newcastle-to-seattle) ### Top Routes from Washington - [British Airways Washington to Reykjavik](https://expedia.co.uk/lp/flight-routes/british-airways-from-ronald-reagan-washington-national-to-keflavik-intl/ba/dca/kef) ### Top Routes to Seattle - [KLM London to Seattle](https://expedia.co.uk/lp/flight-routes/klm-from-london-city-to-seattle-tacoma-intl/kl/lcy/sea) - [Alaska Airlines Boston to Seattle](https://expedia.co.uk/lp/flight-routes/alaska-airlines-from-logan-intl-to-seattle-tacoma-intl/as/bos/sea) - [Alaska Airlines New York to Seattle](https://expedia.co.uk/lp/flight-routes/alaska-airlines-from-john-f-kennedy-intl-to-seattle-tacoma-intl/as/jfk/sea) - [Aer Lingus Dublin to Seattle](https://expedia.co.uk/lp/flight-routes/aer-lingus-from-dublin-to-seattle-tacoma-intl/ei/dub/sea) - [British Airways Newcastle to Seattle](https://expedia.co.uk/lp/flight-routes/british-airways-from-newcastle-intl-to-seattle-tacoma-intl/ba/ncl/sea) - [British Airways Manchester to Seattle](https://expedia.co.uk/lp/flight-routes/british-airways-from-manchester-to-seattle-tacoma-intl/ba/man/sea) ### Top Flight Destinations - [Flights to Las Vegas](https://expedia.co.uk/Cheap-Flights-To-Las-Vegas.d178276.Travel-Guide-Flights) - [Flights to New York](https://expedia.co.uk/Cheap-Flights-To-New-York.d178293.Travel-Guide-Flights) - [Flights to Orlando](https://expedia.co.uk/Cheap-Flights-To-Orlando.d178294.Travel-Guide-Flights) - [Flights to Chicago](https://expedia.co.uk/Cheap-Flights-To-Chicago.d178248.Travel-Guide-Flights) - [Flights to San Diego](https://expedia.co.uk/Cheap-Flights-To-San-Diego.d3073.Travel-Guide-Flights) - [Flights to San Francisco](https://expedia.co.uk/Cheap-Flights-To-San-Francisco.d178305.Travel-Guide-Flights) - [Flights to Los Angeles](https://expedia.co.uk/Cheap-Flights-To-Los-Angeles.d178280.Travel-Guide-Flights) - [Flights to Boston](https://expedia.co.uk/Cheap-Flights-To-Boston.d178239.Travel-Guide-Flights) - [Flights to Miami](https://expedia.co.uk/Cheap-Flights-To-Miami.d178286.Travel-Guide-Flights) - [Flights to Houston](https://expedia.co.uk/Cheap-Flights-To-Houston.d178265.Travel-Guide-Flights) - [Flights to Pigeon Forge](https://expedia.co.uk/Cheap-Flights-To-Pigeon-Forge.d8264.Travel-Guide-Flights) - [Flights to Nashville](https://expedia.co.uk/Cheap-Flights-To-Nashville.d178291.Travel-Guide-Flights) - [Flights to Myrtle Beach](https://expedia.co.uk/Cheap-Flights-To-Myrtle-Beach.d601685.Travel-Guide-Flights) - [Flights to Atlanta](https://expedia.co.uk/Cheap-Flights-To-Atlanta.d178232.Travel-Guide-Flights) - [Flights to San Antonio](https://expedia.co.uk/Cheap-Flights-To-San-Antonio.d178303.Travel-Guide-Flights) - [Flights to Denver](https://expedia.co.uk/Cheap-Flights-To-Denver.d178254.Travel-Guide-Flights) - [Flights to Honolulu](https://expedia.co.uk/Cheap-Flights-To-Honolulu.d1488.Travel-Guide-Flights) - [Flights to Gatlinburg](https://expedia.co.uk/Cheap-Flights-To-Gatlinburg.d7474.Travel-Guide-Flights) - [Flights to Panama City Beach](https://expedia.co.uk/Cheap-Flights-To-Panama-City-Beach.d8021.Travel-Guide-Flights) - [Flights to Atlantic City](https://expedia.co.uk/Cheap-Flights-To-Atlantic-City.d602179.Travel-Guide-Flights) ### Related Airlines - [JetBlue Airways](https://expedia.co.uk/JetBlue-Airways-Flights.cB6.Travel-Guide-Airlines) - [Air Canada](https://expedia.co.uk/Air-Canada-Flights.cAC.Travel-Guide-Airlines) - [British Airways](https://expedia.co.uk/British-Airways-Flights.cBA.Travel-Guide-Airlines) - [Virgin Atlantic](https://expedia.co.uk/Virgin-Atlantic-Flights.cVS.Travel-Guide-Airlines) - [Iberia](https://expedia.co.uk/Iberia-Flights.cIB.Travel-Guide-Airlines) - [KLM](https://expedia.co.uk/KLM-Flights.cKL.Travel-Guide-Airlines) - [TAP Portugal](https://expedia.co.uk/TAP-Portugal-Flights.cTP.Travel-Guide-Airlines) - [Air France](https://expedia.co.uk/Air-France-Flights.cAF.Travel-Guide-Airlines) - [Finnair](https://expedia.co.uk/Finnair-Flights.cAY.Travel-Guide-Airlines) - [American Airlines](https://expedia.co.uk/American-Airlines-Flights.cAA.Travel-Guide-Airlines) - [Alaska Airlines](https://expedia.co.uk/Alaska-Airlines-Flights.cAS.Travel-Guide-Airlines) - [Delta](https://expedia.co.uk/Delta-Flights.cDL.Travel-Guide-Airlines) - [United](https://expedia.co.uk/United-Flights.cUA.Travel-Guide-Airlines) - [SAS](https://expedia.co.uk/Scandinavian-Airlines-Flights.cSK.Travel-Guide-Airlines) - [Icelandair](https://expedia.co.uk/Icelandair-Flights.cFI.Travel-Guide-Airlines) - [WestJet](https://expedia.co.uk/WestJet-Flights.cWS.Travel-Guide-Airlines) Seattle Airports #### Seattle Paine Field Intl. Airport [Washington to Seattle Paine Field Intl. Airport](https://expedia.co.uk/lp/flights/dca/pae/washington-to-seattle-paine-field-intl-airport) £380.60 Washington Airports #### Baltimore [Baltimore Washington Intl. Thurgood Marshall to Seattle](https://expedia.co.uk/lp/flights/bwi/sea/baltimore-to-seattle) £166.70 #### Washington [Washington Dulles Intl. to Seattle](https://expedia.co.uk/lp/flights/iad/sea/washington-to-seattle) £189.00 ### Nearby Airports - [College Park Airport (CGS)](https://expedia.co.uk/lp/airports/cgs/flights-from-college-park-airport) - [Tipton Airport (FME)](https://expedia.co.uk/lp/airports/fme/flights-from-tipton-airport) - [Montgomery County Airpark Airport (GAI)](https://expedia.co.uk/lp/airports/gai/flights-from-montgomery-county-airpark-airport) - [Washington Dulles Intl. Airport (IAD)](https://expedia.co.uk/lp/airports/iad/flights-from-washington-dulles-intl-airport) - [Manassas Regional Airport (MNZ)](https://expedia.co.uk/lp/airports/mnz/flights-from-manassas-regional-airport) - [Baltimore Washington Intl. Thurgood Marshall Airport (BWI)](https://expedia.co.uk/lp/airports/bwi/flights-from-baltimore-washington-intl-thurgood-marshall-airport) - [Martin State Airport (MTN)](https://expedia.co.uk/lp/airports/mtn/flights-from-martin-state-airport) - [Eastern West Virginia Regional Airport (MRB)](https://expedia.co.uk/lp/airports/mrb/flights-from-eastern-west-virginia-regional-airport) - [Hagerstown Regional Airport (HGR)](https://expedia.co.uk/lp/airports/hgr/flights-from-hagerstown-regional-airport) - [Salisbury - Ocean City Wicomico Regional Airport (SBY)](https://expedia.co.uk/lp/airports/sby/flights-from-salisbury-ocean-city-wicomico-regional-airport) ### Expedia's Latest Trends Flights - [LHR to BOS flights](https://expedia.co.uk/lp/flights/lhr/bos/london-to-boston) - [LHR to CVG flights](https://expedia.co.uk/lp/flights/lhr/cvg/london-to-cincinnati) - [LHR to SEA flights](https://expedia.co.uk/lp/flights/lhr/sea/london-to-seattle) - [BOS to LHR flights](https://expedia.co.uk/lp/flights/bos/lhr/boston-to-london) - [LAS to LHR flights](https://expedia.co.uk/lp/flights/las/lhr/las-vegas-to-london) - [LHR to ANC flights](https://expedia.co.uk/lp/flights/lhr/anc/london-to-anchorage) - [LHR to PHL flights](https://expedia.co.uk/lp/flights/lhr/phl/london-to-philadelphia) - [LHR to BWI flights](https://expedia.co.uk/lp/flights/lhr/bwi/london-to-baltimore) - [LHR to CMH flights](https://expedia.co.uk/lp/flights/lhr/cmh/london-to-columbus) - [MAN to BOS flights](https://expedia.co.uk/lp/flights/man/bos/manchester-to-boston) - [LAS to LAX flights](https://expedia.co.uk/lp/flights/las/lax/las-vegas-to-los-angeles) - [LHR to FLL flights](https://expedia.co.uk/lp/flights/lhr/fll/london-to-fort-lauderdale) - [LON to NYC flights](https://expedia.co.uk/lp/flights/lon/nyc/london-to-new-york) - [LAS to SFO flights](https://expedia.co.uk/lp/flights/las/sfo/las-vegas-to-san-francisco) - [LHR to CLE flights](https://expedia.co.uk/lp/flights/lhr/cle/london-to-cleveland) - [LHR to PIT flights](https://expedia.co.uk/lp/flights/lhr/pit/london-to-pittsburgh) - [YYZ to NYC flights](https://expedia.co.uk/lp/flights/yyz/nyc/toronto-to-new-york) - [EDI to BOS flights](https://expedia.co.uk/lp/flights/edi/bos/edinburgh-to-boston) - [MAN to LAS flights](https://expedia.co.uk/lp/flights/man/las/manchester-to-las-vegas) - [LAX to LAS flights](https://expedia.co.uk/lp/flights/lax/las/los-angeles-to-las-vegas) - [DFW to LHR flights](https://expedia.co.uk/lp/flights/dfw/lhr/dallas-to-london) - [MAN to DFW flights](https://expedia.co.uk/lp/flights/man/dfw/manchester-to-dallas) - [SFO to LAS flights](https://expedia.co.uk/lp/flights/sfo/las/san-francisco-to-las-vegas) - [JFK to LAS flights](https://expedia.co.uk/lp/flights/jfk/las/new-york-to-las-vegas) - [LHR to SAN flights](https://expedia.co.uk/lp/flights/lhr/san/london-to-san-diego) - [DUB to LAS flights](https://expedia.co.uk/lp/flights/dub/las/dublin-to-las-vegas) - [GLA to LAS flights](https://expedia.co.uk/lp/flights/gla/las/glasgow-to-las-vegas) - [LHR to LAS flights](https://expedia.co.uk/lp/flights/lhr/las/london-to-las-vegas) - [BOS to JFK flights](https://expedia.co.uk/lp/flights/bos/jfk/boston-to-new-york) - [LHR to DFW flights](https://expedia.co.uk/lp/flights/lhr/dfw/london-to-dallas) \*Available to Expedia members. ![](https://a.travel-assets.com/mad-service/footer/bnaBanners/BEX_Footer.jpg) ## Go further with the Expedia app Save on select hotels when you book in the app. Our app deals help you to save on trips so you can travel more and manage it all on the go. Scan the QR code with your device camera and download our app ![QR code to download the app](data:image/png;base64,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)