Title: CA $780 Cheap Flights from Bilbao (BIO) 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 $780 Cheap Flights from Bilbao (BIO) to Seattle (SEA) [View CA $780 flight on Sat, Oct 24, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:BIO,to:SEA,departure:24/10/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:779.50&airProductToken=AQq_AQo9CMKCARIENzA4NRiBciCMGCiTopsDMNmimwM4T0AAWAFqBU5PQkFHcghPS1c1QzVCV3oKCMmEARIENzA4NQo-CMKCARIEMTUxMxiMGCCjsQEozKObAzDbqJsDOE9AAVgBagVOT0JBR3IIT0tXNUM1Qld6CgjBggESBDE1MTMKPgjCggESBDY1NDUYo7EBIJIBKOSqmwMw4qybAzhPQAFYAWoFTk9CQUdyCE9LVzVDNUJXegoIwYIBEgQ2NTQ1EgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) - [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 Bilbao Airport (BIO) to Seattle-Tacoma International Airport (SEA) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AC.svg) Air Canada [](https://www.expedia.ca/Flights-Search?leg1=from:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AF.svg) Air France [](https://www.expedia.ca/Flights-Search?leg1=from:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AF"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_BA.svg) British Airways [](https://www.expedia.ca/Flights-Search?leg1=from:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_IB.svg) Iberia [](https://www.expedia.ca/Flights-Search?leg1=from:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"IB"}}]) - ![](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_KL.svg) KLM [](https://www.expedia.ca/Flights-Search?leg1=from:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![](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:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&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:BIO,to:SEA,departure:02/03/2026TANYT&leg2=from:SEA,to:BIO,departure:09/03/2026TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"DL"}}]) - ![](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 Bilbao (BIO) to Seattle (SEA) Prices were available within the past 7 days and start at CA $780 for one-way flights and CA $1,649 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,649 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1648.52&airProductToken=AQq9AQo9CMKCARIENzA4NRiBciCMGCjzxpUDMLnHlQM4UUAAWAFqBU5PQkFHcghRSFg1QzVCV3oKCMmEARIENzA4NQo9CMKCARIEMTYzNxiMGCCuHCj3yJUDMKzNlQM4UUABWAFqBU5PQkFHcghRSFg1QzVCV3oKCMGCARIEMTYzNwo9CMKCARIENDczMhiuHCCSASjfz5UDMPrRlQM4UUABWAFqBU5PQkFHcghRSFg1QzVCV3oKCMGCARIENDczMhIKCAEQARgBKgJCQRgBIgQIARABKAIoAzAN) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,688 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1687.12&airProductToken=AQq3AQpACMywARIEODIyNxiBciC5PCilzJUDMJjNlQM4S0AAWAFqCEVDT0xJR0hUcghLSFZQQVhCUXoKCNeWARIEODIyNwoxCMywARIBNhi5PCCuHCi20pUDMP_WlQM4S0ABWAFqCEVDT0xJR0hUcghLSFZQQVhCUQpACMywARIEMzI5NBiuHCCSASjb2JUDMPfalQM4S0ABWAFqCEVDT0xJR0hUcghLSFZQQVhCUXoKCNWCARIEMTgwMQrFAQo_CMywARIEODAwNxiSASC5PCjH-5UDMJqAlgM4TEAAWAFqCEVDT0xJR0hUcghMSFZQQVhCUXoJCNeWARIDMDA3CkAIzLABEgQxMTA0GLk8IIwVKIOBlgMwxIGWAzhMQAFYAWoIRUNPTElHSFRyCExIVlBBWEJRegoIspgBEgQxMTA0CkAIzLABEgQzODAwGIwVIIFyKJSClgMwm4OWAzhMQAFYAWoIRUNPTElHSFRyCExIVlBBWEJRegoIzJABEgQxODI4EgoIAhABGAIqAkxYGAEiBAgBEAEoAigDKAQwCw) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,689 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1688.92&airProductToken=AQqlAQo9CMGGARIEOTM4MBiBciClBCjixZUDMOTGlQM4S0AAWAFqBUJBU0lDcghLSFZQS1hCUXoKCMyQARIEMTE0NwoxCMGGARIDODQxGKUEIJjOASigx5UDMLfLlQM4S0ABWAFqBUJBU0lDcghLSFZQS1hCUQoxCMGGARIDNTQxGJjOASCSASiVzpUDMNfQlQM4S0ABWAFqBUJBU0lDcghLSFZQS1hCUQq7AQpACNOcARIEODg1MBiSASCIGCjE95UDMOn5lQM4TEAAWAFqCEVDT0xJR0hUcghMSFZQS1hCUXoKCNWCARIEMTUyMwpACNOcARIEODgwMhiIGCChpAEo1PqVAzCb_pUDOExAAVgBaghFQ09MSUdIVHIITEhWUEtYQlF6CQjVggESAzk1MAo1CNOcARIEMzcxMRihpAEggXIotYGWAzCogpYDOExAAVgBaghFQ09MSUdIVHIITEhWUEtYQlESCggBEAEYASoCQUMYASIECAEQASgCKAMoBDAB) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,698 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1697.82&airProductToken=AQq9AQo9CMKCARIENzA4NRiBciCMGCjzxpUDMLnHlQM4UUAAWAFqBU5PQkFHcghRSFg1QzVCV3oKCMmEARIENzA4NQo9CMKCARIEMTYzNxiMGCCuHCj3yJUDMKzNlQM4UUABWAFqBU5PQkFHcghRSFg1QzVCV3oKCMGCARIEMTYzNwo9CMKCARIENTc2NxiuHCCSASiHzpUDMJbQlQM4UUABWAFqBU5PQkFHcghRSFg1QzVCV3oKCMGCARIENTc2NxIKCAEQARgBKgJCQRgBIgQIARABKAIoAzAN) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,713 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1712.22&airProductToken=AQqlAQo9CMGGARIEOTM4MBiBciClBCjixZUDMOTGlQM4S0AAWAFqBUJBU0lDcghLSFZQS1hCUXoKCMyQARIEMTE0NwoxCMGGARIDODQxGKUEIJjOASigx5UDMLfLlQM4S0ABWAFqBUJBU0lDcghLSFZQS1hCUQoxCMGGARIDNTQxGJjOASCSASiVzpUDMNfQlQM4S0ABWAFqBUJBU0lDcghLSFZQS1hCUQrFAQo_CMywARIEODAwNxiSASC5PCjH-5UDMJqAlgM4TEAAWAFqCEVDT0xJR0hUcghMSFZQS1hCUXoJCNeWARIDMDA3CkAIzLABEgQxMTA0GLk8IIwVKIOBlgMwxIGWAzhMQAFYAWoIRUNPTElHSFRyCExIVlBLWEJRegoIspgBEgQxMTA0CkAIzLABEgQzODAwGIwVIIFyKJSClgMwm4OWAzhMQAFYAWoIRUNPTElHSFRyCExIVlBLWEJRegoIzJABEgQxODI4EgoIARABGAEqAkFDGAEiBAgBEAEoAigDKAQwAQ) ![Swiss International Air Lines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/LX.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,726 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1725.82&airProductToken=AQq3AQpACMywARIEODIyNxiBciC5PCilzJUDMJjNlQM4S0AAWAFqCEVDT0xJR0hUcghLSFZQS1hCUXoKCNeWARIEODIyNwoxCMywARIBNhi5PCCuHCi20pUDMP_WlQM4S0ABWAFqCEVDT0xJR0hUcghLSFZQS1hCUQpACMywARIEMzI5NBiuHCCSASjb2JUDMPfalQM4S0ABWAFqCEVDT0xJR0hUcghLSFZQS1hCUXoKCNWCARIEMTgwMQq7AQpACNOcARIEODg1MBiSASCIGCjE95UDMOn5lQM4TEAAWAFqCEVDT0xJR0hUcghMSFZQS1hCUXoKCNWCARIEMTUyMwpACNOcARIEODgwMhiIGCChpAEo1PqVAzCb_pUDOExAAVgBaghFQ09MSUdIVHIITEhWUEtYQlF6CQjVggESAzk1MAo1CNOcARIEMzcxMRihpAEggXIotYGWAzCogpYDOExAAVgBaghFQ09MSUdIVHIITEhWUEtYQlESCggBEAEYASoCTFgYASIECAEQASgCKAMoBDAB) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,751 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1750.52&airProductToken=AQq_AQo9CMKCARIENzA4NRiBciCMGCjzxpUDMLnHlQM4TkAAWAFqBU5PQkFHcghOSFg1QzVCV3oKCMmEARIENzA4NQo-CMKCARIEMTUxMxiMGCCjsQEowMiVAzC7zZUDOE5AAVgBagVOT0JBR3IITkhYNUM1Qld6CgjBggESBDE1MTMKPgjCggESBDU1NDEYo7EBIJIBKM7PlQMw2NGVAzhOQAFYAWoFTk9CQUdyCE5IWDVDNUJXegoIwYIBEgQ1NTQxEgoIARABGAEqAkJBGAEiBAgBEAEoAigDMA0) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,764 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1763.92&airProductToken=AQqlAQo9CMGGARIEOTM4MBiBciClBCjixZUDMOTGlQM4S0AAWAFqBUJBU0lDcghLSFZQQVhCUXoKCMyQARIEMTE0NwoxCMGGARIDODQxGKUEIJjOASigx5UDMLfLlQM4S0ABWAFqBUJBU0lDcghLSFZQQVhCUQoxCMGGARIDNTQxGJjOASCSASiVzpUDMNfQlQM4S0ABWAFqBUJBU0lDcghLSFZQQVhCUQqzAQoyCMGGARIEODgwNxiSASC4jQEo6PqVAzCq-5UDOFNAAFgBagVCQVNJQ3IIU0hWUUFYQlEKPgjBhgESBDk0MzIYuI0BIIwVKMT8lQMwjYGWAzhTQAFYAWoFQkFTSUNyCFNIVlFBWEJRegoIzJABEgQ5NDMyCj0IwYYBEgQ5Njk2GIwVIIFyKJSClgMwm4OWAzhTQAFYAWoFQkFTSUNyCFNIVlFBWEJRegoIzJABEgQxODI4EgoIAhABGAIqAkFDGAEiBAgBEAEoAigDKAQwDQ) ![Finnair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AY.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,773 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1772.62&airProductToken=AQrBAQo-CMGyARIENTYxNhiBciCMGCjdxZUDMKPGlQM4T0AAWAFqBkVTQVZFUnIIT0hYNUM1TTR6CgjJhAESBDU2MTYKPgjBsgESBDU2NTEYjBggi7gBKNTIlQMwqc6VAzhPQAFYAWoGRVNBVkVScghPSFg1QzVNNHoJCMmEARIDMzUxCj8IwbIBEgQzOTcxGIu4ASCSASiP0JUDMLrRlQM4T0ABWAFqBkVTQVZFUnIIT0hYNUM1TTR6CgjBpgESBDM5NzESCggBEAEYASoCQVkYASIECAEQASgCKAMoBDAB) ![Brussels Airlines](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/SN.gif) Thu, Aug 20 - Mon, Aug 24 BIO Bilbao SEA Seattle CA $1,838 Roundtrip found 12 hours ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:BIO,to:SEA,departure:20/08/2026TANYT&leg2=from:SEA,to:BIO,departure:24/08/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:1837.42&airProductToken=AQquAQo1CNOcARIEMzcxMhiBciChpAEousqVAzCoy5UDOFNAAFgBaghFQ09MSUdIVHIIU0hWUUFYQlEKNAjTnAESAzUxNRihpAEgiBgo7dKVAzD61pUDOFNAAVgBaghFQ09MSUdIVHIIU0hWUUFYQlEKPwjTnAESBDg4NDkYiBggkgEo79iVAzC-25UDOFNAAVgBaghFQ09MSUdIVHIIU0hWUUFYQlF6CQjVggESAzMyNgq7AQpACNOcARIEODg1MBiSASCIGCjE95UDMOn5lQM4TEAAWAFqCEVDT0xJR0hUcghMSFZQQVhCUXoKCNWCARIEMTUyMwpACNOcARIEODgwMhiIGCChpAEo1PqVAzCb_pUDOExAAVgBaghFQ09MSUdIVHIITEhWUEFYQlF6CQjVggESAzk1MAo1CNOcARIEMzcxMRihpAEggXIotYGWAzCogpYDOExAAVgBaghFQ09MSUdIVHIITEhWUEFYQlESCggCEAEYAioCU04YASIECAEQASgCKAMoBDAL) ![](https://forever.travel-assets.com/flex/flexmanager/images/2026/02/06/expedia-sale-2026-desktop-us-ca.jpg?impolicy=fcrop&w=1400&h=600&q=mediumHigh) ## The Annual Vacation Sale Members save up to 40% on hotels and homes. Plan this year’s big trip and save. [Book now](https://expedia.ca/deals?rfrr=FTG_SPRING_PROMO_) __Flight from Bilbao to Seattle (BIO - SEA) route information__ | Origin airport | Bilbao | | ------------------- | ---------------------- | | Destination airport | Seattle - Tacoma Intl. | | Roundtrip price | CA $1,649 | | Distance | 8259 km | ## Bilbao to Seattle Flights **The easy way to book your flights from Bilbao to Seattle** With Expedia, it’s simple to find and book flights to Seattle from Bilbao 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 Bilbao to Seattle today, tomorrow, or this week. **Save dollars with cheap flights from Bilbao, BIO to Seattle - Tacoma Intl., SEA** Sort your search results by price to find great deals on your flight from Bilbao to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Bilbao currently is just CA $1,649 rising to CA $1,838\. Here are more money-saving tips: - Fly in August 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 Bilbao** 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 BIO to SEA? ### Do I need to pay a cancellation fee if I cancel my flight from Bilbao Airport to SEA? ### How do I find cheap flights from BIO to Sea-Tac Airport that have flexible change policies? ### How many hours is the flight from Bilbao Airport (BIO) to Seattle - Tacoma Intl. Airport (SEA)? ### How far is the flight from BIO to Seattle - Tacoma Intl. Airport (SEA)? ### Which airlines fly direct from Bilbao Airport to Sea-Tac Airport? ### Are BIO to Sea-Tac Airport flight tickets cheaper when they're purchased at the last minute? \*Available to Expedia members.