Title: £381 Cheap Flights from Lisbon to Seattle (LIS 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://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_flights_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) # £381 Cheap Flights from Lisbon (LIS) to Seattle (SEA) [View £381 flight on Mon, 24 Nov 2025](https://expedia.co.uk/Flights-Search?trip=oneway&leg1=from:LIS,to:SEA,departure:24/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:380.88&airProductToken=AQpiCjAIxZIBEgM0ODMYi5IBIIMNKKr2_QIw2ff9AjhHQABYAWoEU0FWUnIIT0xONUM1QjQKLgjFkgESAjUzGIMNIJIBKP74_QIwzP39AjhPQAFYAWoEU0FWUnIIT0xONUM1QjQSCggBEAEYASoCRUkYASIECAEQASgCKAMoBDAN) - [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 Humberto Delgado Airport (LIS) to Seattle-Tacoma International Airport (SEA) - ![British Airways](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![Air Canada](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ![Aer Lingus](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_EI.svg) Aer Lingus [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"EI"}}]) - ![Turkish Airlines](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_TK.svg) Turkish Airlines [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"TK"}}]) - ![Virgin Atlantic](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_VS.svg) Virgin Atlantic [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"VS"}}]) - ![Iberia](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_IB.svg) Iberia [](https://www.expedia.co.uk/Flights-Search?leg1=from:lis,to:sea,departure:10/10/2025TANYT&leg2=from:sea,to:lis,departure:17/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) ![notification illustration](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\* ![deals illustration](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Book smarter Save up to 25% on select hotels after you book a flight\* ![trophy illustration](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.co.uk/login) ## Cheap Flights from Lisbon (LIS) to Seattle (SEA) Prices were available within the past 7 days and start at £381 for one-way flights and £561 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Return ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Fri, 16 Jan - Tue, 20 Jan LIS Lisbon SEA Seattle £561 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:16/01/2026TANYT&leg2=from:SEA,to:LIS,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:560.30&airProductToken=AQpnCjIIwoIBEgQxNTc3GIuSASDvWSjZyoIDMLnOggM4T0AAWAFqBU5PQkFHcghPTE43VDhCNAoxCMKCARIENjczMBjvWSCSASjH0IIDMLTTggM4T0ABWAFqBU5PQkFHcghPTE43VDhCNApmCjAIwoIBEgI1MhiSASDriQEoxfyCAzCEgYMDOE9AAFgBagVOT0JBR3IIT0xON1Q4QjQKMgjCggESAzUwNhjriQEgi5IBKKaDgwMw1YSDAzhPQAFYAWoFTk9CQUdyCE9MTjdUOEI0EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sat, 27 Dec - Wed, 31 Dec LIS Lisbon SEA Seattle £565 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:27/12/2025TANYT&leg2=from:SEA,to:LIS,departure:31/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:564.24&airProductToken=AQpmCjIIwoIBEgM1MTMYi5IBIOuJASjk54ADMJ3pgAM4T0AAWAFqBU5PQkFHcghPTE43VDhCNAowCMKCARICNDkY64kBIJIBKL_rgAMwl_CAAzhPQAFYAWoFTk9CQUdyCE9MTjdUOEI0CpsBCjEIwoIBEgQ0MzgyGJIBIK4cKNyagQMw4pyBAzhPQABYAWoFTk9CQUdyCE9MTjdUOEI0CjIIwoIBEgQxNTQxGK4cIOuJASiAnoEDMNGhgQM4T0ABWAFqBU5PQkFHcghPTE43VDhCNAoyCMKCARIDNTA2GOuJASCLkgEoq6KBAzDao4EDOE9AAVgBagVOT0JBR3IIT0xON1Q4QjQSCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Fri, 16 Jan - Tue, 20 Jan LIS Lisbon SEA Seattle £567 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:16/01/2026TANYT&leg2=from:SEA,to:LIS,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:566.30&airProductToken=AQpnCjIIwoIBEgQxNTc3GIuSASDvWSjZyoIDMLnOggM4T0AAWAFqBU5PQkFHcghPTE43VDhCNAoxCMKCARIENjczMBjvWSCSASjH0IIDMLTTggM4T0ABWAFqBU5PQkFHcghPTE43VDhCNAqcAQoyCMKCARIENTU4NxiSASCjsQEo7fyCAzDY_oIDOE9AAFgBagVOT0JBR3IIT0xON1Q4QjQKMgjCggESAzE5MhijsQEg64kBKKP_ggMwv4ODAzhPQAFYAWoFTk9CQUdyCE9MTjdUOEI0CjIIwoIBEgM1MTAY64kBIIuSASjVhIMDMISGgwM4T0ABWAFqBU5PQkFHcghPTE43VDhCNBIKCAEQARgBKgJCQRgBIgQIARABKAIoAzAN) ![Air France](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AF.gif) Fri, 16 Jan - Tue, 20 Jan LIS Lisbon SEA Seattle £569 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:16/01/2026TANYT&leg2=from:SEA,to:LIS,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:568.80&airProductToken=AQpmCjIIwYwBEgQxMTk1GIuSASDiMCiWzoIDMLvPggM4TEAAWAFqBUxJR0hUcghWWUw2VFZMSQowCMGMARIDMzM4GOIwIJIBKIbVggMw7dmCAzhWQAFYAWoFTElHSFRyCFZZTDZUVkxJCmYKMAjBjAESAzMzNxiSASDiMCjU_IIDMJOBgwM4VkAAWAFqBUxJR0hUcghWWUw2VFZMSQoyCMGMARIEMTYyNBjiMCCLkgEozoODAzDuhIMDOExAAVgBagVMSUdIVHIIVllMNlRWTEkSCggCEAEYAioCQUYYASIECAEQASgCKAMoBDAN) ![American Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AA.gif) Fri, 16 Jan - Tue, 20 Jan LIS Lisbon SEA Seattle £570 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:16/01/2026TANYT&leg2=from:SEA,to:LIS,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:569.20&airProductToken=AQqZAQoxCMGCARIDMjU5GIuSASDvWSjZyoIDMLnOggM4QkAAWAFqBUJBU0lDcghPTE43VDhCNAoxCMGCARIEMjI3NxjvWSCuHCinz4IDMLzQggM4QkABWAFqBUJBU0lDcghPTE43VDhCNAoxCMGCARIEMjIwMhiuHCCSASjA0YIDMNvTggM4QkABWAFqBUJBU0lDcghPTE43VDhCNAqZAQoxCMGCARIEMjU2MRiSASCuHCiA-oIDMP_7ggM4QkAAWAFqBUJBU0lDcghPTE43VDhCNAoxCMGCARIEMTQxOBiuHCDvWSi4_YIDMK_-ggM4QkABWAFqBUJBU0lDcghPTE43VDhCNAoxCMGCARIDMjU4GO9ZIIuSASjs_oIDMIuCgwM4QkABWAFqBUJBU0lDcghPTE43VDhCNBIKCAIQARgCKgJBQRgBIgQIARABKAIoAygEMAs) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Sat, 27 Dec - Wed, 31 Dec LIS Lisbon SEA Seattle £571 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:27/12/2025TANYT&leg2=from:SEA,to:LIS,departure:31/12/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:570.24&airProductToken=AQpmCjIIwoIBEgM1MTMYi5IBIOuJASjk54ADMJ3pgAM4T0AAWAFqBU5PQkFHcghPTE43VDhCNAowCMKCARICNDkY64kBIJIBKL_rgAMwl_CAAzhPQAFYAWoFTk9CQUdyCE9MTjdUOEI0Cp0BCjIIwoIBEgQ1NTg4GJIBIKOxASjlmoEDMNWcgQM4T0AAWAFqBU5PQkFHcghPTE43VDhCNAozCMKCARIEMTUzMRijsQEg64kBKJKdgQMwuKGBAzhPQAFYAWoFTk9CQUdyCE9MTjdUOEI0CjIIwoIBEgM1MDYY64kBIIuSASirooEDMNqjgQM4T0ABWAFqBU5PQkFHcghPTE43VDhCNBIKCAEQARgBKgJCQRgBIgQIARABKAIoAzAN) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Fri, 7 Nov - Thu, 13 Nov LIS Lisbon SEA Seattle £571 Return found 3 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:07/11/2025TANYT&leg2=from:SEA,to:LIS,departure:13/11/2025TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:570.80&airProductToken=AQpnCjIIwoIBEgQxNTc3GIuSASDvWSiZt_wCMP66_AI4T0AAWAFqBU5PQkFHcghPTE43VDhCNAoxCMKCARIENjczMBjvWSCSASiWvfwCMJzA_AI4T0ABWAFqBU5PQkFHcghPTE43VDhCNAqaAQoxCMKCARIENTU5MxiSASCuHCiWgP0CMJOC_QI4UUAAWAFqBU5PQkFHcghRTE43VDhCNAoxCMKCARIDMjk2GK4cIOuJASjBgv0CMJeG_QI4UUABWAFqBU5PQkFHcghRTE43VDhCNAoyCMKCARIDNTEwGOuJASCLkgEo6Yf9AjCYif0COFFAAVgBagVOT0JBR3IIUUxON1Q4QjQSCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Thu, 22 Jan - Fri, 30 Jan LIS Lisbon SEA Seattle £572 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:22/01/2026TANYT&leg2=from:SEA,to:LIS,departure:30/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:571.54&airProductToken=AQqdAQoyCMKCARIDNTEzGIuSASDriQEopIyDAzDYjYMDOE9AAFgBagVOT0JBR3IIT0xON1Q4QjQKMwjCggESBDE1MjAY64kBIKOxASjLjoMDMLyTgwM4T0ABWAFqBU5PQkFHcghPTE43VDhCNAoyCMKCARIEMjQ4ORijsQEgkgEo0pSDAzDfloMDOE9AAVgBagVOT0JBR3IIT0xON1Q4QjQKZgowCMKCARICNDgYkgEg64kBKMrvgwMwhPSDAzhPQABYAWoFTk9CQUdyCE9MTjdUOEI0CjIIwoIBEgM1MTIY64kBIIuSASi894MDMOH4gwM4T0ABWAFqBU5PQkFHcghPTE43VDhCNBIKCAEQARgBKgJCQRgBIgQIARABKAIoAzAN) ![KLM](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/KL.gif) Fri, 16 Jan - Tue, 20 Jan LIS Lisbon SEA Seattle £573 Return found 2 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:16/01/2026TANYT&leg2=from:SEA,to:LIS,departure:20/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:573.00&airProductToken=AQqdAQozCMuYARIEMTU3OBiLkgEggJMBKOzHggMwpcmCAzhMQABYAWoFTElHSFRyCFZZTDZUVkxJCjIIy5gBEgM2MTUYgJMBIO-4ASj1yYIDMM3OggM4VkABWAFqBUxJR0hUcghWWUw2VFZMSQoyCMuYARIENTY5ORjvuAEgkgEoydGCAzCJ0oIDOFZAAVgBagVMSUdIVHIIVllMNlRWTEkKaQoyCMuYARIENjAzMhiSASCAkwEorv2CAzD8gYMDOFZAAFgBagVMSUdIVHIIVllMNlRWTEkKMwjLmAESBDE1ODMYgJMBIIuSASiXg4MDMMuEgwM4TEABWAFqBUxJR0hUcghWWUw2VFZMSRIKCAIQARgCKgJLTBgBIgQIARABKAIoAygEMA0) ![Iberia](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/IB.gif) Thu, 22 Jan - Fri, 30 Jan LIS Lisbon SEA Seattle £575 Return found 6 days ago [](https://expedia.co.uk/Flights-Search?trip=roundtrip&leg1=from:LIS,to:SEA,departure:22/01/2026TANYT&leg2=from:SEA,to:LIS,departure:30/01/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:574.70&airProductToken=AQqYAQoxCMmEARIDNTQwGIuSASCMGCiGjIMDMNuMgwM4T0AAWAFqBUJBU0lDcghPTE43VDhCVwowCMmEARIDMzQxGIwYIK4cKPuNgwMwzpKDAzhPQAFYAWoFQkFTSUNyCE9MTjdUOEJXCjEIyYQBEgQ0NTczGK4cIJIBKICVgwMwm5eDAzhPQAFYAWoFQkFTSUNyCE9MTjdUOEJXCpgBCjEIyYQBEgQ0NTUwGJIBIK4cKMDqgwMwv-yDAzhPQABYAWoFQkFTSUNyCE9MTjdUOEJXCjAIyYQBEgMzNDIYrhwgjBgo1e2DAzC_8YMDOE9AAVgBagVCQVNJQ3IIT0xON1Q4QlcKMQjJhAESAzUzMxiMGCCLkgEokPWDAzDl9YMDOE9AAVgBagVCQVNJQ3IIT0xON1Q4QlcSCggCEAEYAioCSUIYASIECAEQASgCKAMoBDAN) ## Find the cheapest month to fly from Lisbon (LIS) to Seattle (SEA) ### May is typically the cheapest month to fly From £490 - £827 per traveller. ## Frequently asked questions ### How much is a flight from Lisbon/Portela Airport to Seattle - Tacoma Intl. Airport (SEA)? > Within the past 7 days on Expedia, for flights departing within the next year, the lowest price available for a round-trip journey from Lisbon Airport to SEA was £561. Fares this good don't last forever, so make sure you book yours today. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from LIS to Sea-Tac Airport? > This can vary from airline to airline, as each one has its own set of terms and conditions. Visit the [Customer Service Portal](https://www.expedia.co.uk/service/?langid=1033), where there are simple instructions on how to cancel your flight online. ### How do I find cheap flights from LIS to SEA 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 Lisbon Airport to Sea-Tac Airport flights, you'll see a "no change fees" filter for you to select. ### How far is the flight from Lisbon/Portela Airport to SEA? > The distance is around 8,400 kilometres, so pack your carry-on luggage with all the items you need to make your journey comfortable. Wondering what to take on board your Lisbon District to SeaTac flight? Earplugs, a sleep mask and a neck pillow are a few essentials. ### Which airlines fly direct from LIS to Sea-Tac Airport? > Flying directly between Lisbon Airport and Seattle - Tacoma Intl. Airport (SEA) isn't possible at the moment. However, you'll still be able to book a flight to SeaTac with at least one stop. ### Are LIS to SEA flight tickets cheaper when they're purchased at the last minute? > Last-minute planners can occasionally score a bargain, with some of the cheapest fares from Lisbon/Portela Airport to Sea-Tac Airport surfacing a few weeks before the departure date. If you'd rather book ahead, Expedia compares and updates the best flight deals continuously — as early as 12 months in advance in some cases. It does depend on the carrier though, as not every airline releases prices that far in advance. ## Travel information | Origin airport | Humberto Delgado | | --- | --- | | Destination airport | Seattle - Tacoma Intl. | | Return price | £560 | | Distance | 8323 km | ## Book with confidence ### Compare flights from Lisbon to Seattle easily and book with confidence For travelling on business or for pleasure, Expedia makes it easy to book your flights from Lisbon to Seattle. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Seattle - Tacoma Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Humberto Delgado 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 Humberto Delgado (LIS) to Seattle - Tacoma Intl. (SEA) The easiest way to view the best deals on flights from Lisbon 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 Humberto Delgado to Seattle - Tacoma Intl. start at just £561 and range up to £748.   To find an even better deal, try   - being flexible on your dates – midweek flights can be cheaper - looking for other airports near Lisbon and Seattle - booking your flight during January, the cheapest month on this route - varying your flight times – early morning and late at night are sometimes cheaper  Why you should book your Lisbon to Seattle flight with Expedia! We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Humberto Delgado 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.   ## Explore a world of travel with Expedia - Accommodation - Flights - Packages - Cars - Other - [5 Star Hotels in Bryn Mawr-Skyway](https://www.expedia.co.uk/5Star-Bryn-Mawr-Skyway-Seattle-Hotels.s50-n158768-0.Travel-Guide-Filter-Hotels) - [Bryn Mawr-Skyway Hotels](https://www.expedia.co.uk/Bryn-Mawr-Skyway-Seattle-Hotels.0-n158768-0.Travel-Guide-Filter-Hotels) - [B&B in Burien](https://www.expedia.co.uk/Burien-Bed-And-Breakfasts.d84625-aaBedAndBreakfasts.Travel-Guide-Accommodation) - [Burien Hotels](https://www.expedia.co.uk/Burien-Hotels.d84625.Travel-Guide-Hotels) - [Hotels with Hot Tubs in Des Moines](https://www.expedia.co.uk/Des-Moines-Hotels-Hotels-With-Hot-Tubs.0-0-d6751-tHotelsWithHotTubs.Travel-Guide-Filter-Hotels) - [Des Moines Hotels](https://www.expedia.co.uk/Des-Moines-Hotels.d6751.Travel-Guide-Hotels) - [Gay-Friendly Hotels in Downtown Burien](https://www.expedia.co.uk/Downtown-Burien-Seattle-Hotels-Gay-Friendly-Hotel.0-n6193214-0-tGayFriendlyHotel.Travel-Guide-Filter-Hotels) - 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