Title: CA $929 Cheap Flights from Helsinki (HEL) 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 $929 Cheap Flights from Helsinki (HEL) to Seattle (SEA) [View CA $929 flight on Fri, Mar 20, 2026](https://expedia.ca/Flights-Search?trip=oneway&leg1=from:HEL,to:SEA,departure:20/03/2026TANYT&passengers=children:0,adults:1,seniors:0,infantinlap:N&mode=search&options=sortby:price&paandi=true&flp=mdl:flights-flex-module,price:928.50&airProductToken=AQqfAQozCMKoARIDMzA4GIdZIJG6ASiok4gDMOSTiAM4VUAAWAFqB0NMQVNTSUNyCFVMVjFFQ0w1CjMIwqgBEgMxNjkYkboBIIopKLmZiAMwuJuIAzhVQAFYAWoHQ0xBU1NJQ3IIVUxWMUVDTDUKMwjCqAESBDYyODEYiikgkgEovJ2IAzCcoYgDOFVAAVgBagdDTEFTU0lDcghVTFYxRUNMNRIKCAEQARgBKgJCVBgBIgQIARABKAIoAygEMAE) - [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 Helsinki-Vantaa Airport (HEL) to Seattle-Tacoma International Airport (SEA) - ![Finnair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_AY.svg) Finnair [](https://www.expedia.ca/Flights-Search?leg1=from:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AY"}}]) - ![Icelandair](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_FI.svg) Icelandair [](https://www.expedia.ca/Flights-Search?leg1=from:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"FI"}}]) - ![SAS](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_SK.svg) SAS [](https://www.expedia.ca/Flights-Search?leg1=from:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"SK"}}]) - ![Air Canada](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:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"AC"}}]) - ![British Airways](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:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"BA"}}]) - ![KLM](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:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"KL"}}]) - ![Lufthansa](https://forever.travel-assets.com/flex/flexmanager/images/2024/09/23/landing_airline_sq_logo_LH.svg) Lufthansa [](https://www.expedia.ca/Flights-Search?leg1=from:hel,to:sea,departure:03/10/2025TANYT&leg2=from:sea,to:hel,departure:10/10/2025TANYT&trip=roundtrip&passengers=adults:1,children:0,infantinlap:N&mode=search&pageId=0&filters=[{"preferredAirlineFilterValue":{"carrierCode":"LH"}}]) - ## Plan, book, fly with confidence - ### Be in the know Get alerts if flight prices drop or rise\* - ### Book smarter Save up to 30% on select hotels after you book a flight\* - ### Earn twice Earn your airline miles on top of our rewards [Sign in](https://www.expedia.ca/login) ## Cheap flights from Helsinki (HEL) to Seattle (SEA) Prices were available within the past 7 days and start at CA $929 for one-way flights and CA $1,158 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply. All deals One way Roundtrip ![Finnair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AY.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,158 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1157.33&airProductToken=AQqfAQozCMGyARIDODAxGIdZIKBsKKyV_gIw8pX-AjhaQABYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIxpIBEgMzMDcYoGwgiikowZj-AjCTmv4COE9AAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKMwjGkgESAzY4MRiKKSCSASj8mv4CMNye_gI4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQwqfAQozCMaSARIDNjgwGJIBIIopKMuohgMwl6yGAzhJQABYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgMzMTgYiikgzlwo9qyGAzCbroYDOElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKMwjBsgESAzkxNhjOXCCHWSj0sIYDMMmxhgM4T0ABWAFqCFNUQU5EQVJEcghJSjJRT0FFQxIKCAEQARgBKgJGSRgBIgQIARABKAIoAygEMAE) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,165 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1164.03&airProductToken=AQqgAQo0CMaSARIENzMyNRiHWSDOXCiml_4CMICY_gI4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzE5GM5cIIopKNqY_gIwmJr-AjhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgM2ODEYiikgkgEo_Jr-AjDcnv4COElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKnwEKMwjGkgESAzY4MBiSASCKKSjLqIYDMJeshgM4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzE4GIopIM5cKPashgMwm66GAzhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIwbIBEgM5MTYYzlwgh1ko9LCGAzDJsYYDOE9AAVgBaghTVEFOREFSRHIISUoyUU9BRUMSCggBEAEYASoCRkkYASIECAEQASgCKAMoBDAB) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,169 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1168.93&airProductToken=AQqgAQo0CMaSARIENzMxNRiHWSCgbCjqlv4CMLWX_gI4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzA3GKBsIIopKMGY_gIwk5r-AjhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgM2ODEYiikgkgEo_Jr-AjDcnv4COElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKnwEKMwjGkgESAzY4MBiSASCKKSjLqIYDMJeshgM4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzE4GIopIM5cKPashgMwm66GAzhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIwbIBEgM5MTYYzlwgh1ko9LCGAzDJsYYDOE9AAVgBaghTVEFOREFSRHIISUoyUU9BRUMSCggBEAEYASoCRkkYASIECAEQASgCKAMoBDAB) ![Finnair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AY.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,172 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1171.93&airProductToken=AQqfAQozCMGyARIDODAxGIdZIKBsKKyV_gIw8pX-AjhaQABYAWoIU1RBTkRBUkRyCE9KMlFPQUVDCjMIxpIBEgMzMDcYoGwgiikowZj-AjCTmv4COE9AAVgBaghTVEFOREFSRHIIT0oyUU9BRUMKMwjGkgESAzY4MRiKKSCSASj8mv4CMNye_gI4T0ABWAFqCFNUQU5EQVJEcghPSjJRT0FFQwqgAQozCMaSARIDNjgwGJIBIIopKMuohgMwl6yGAzhTQABYAWoIU1RBTkRBUkRyCFNKMlFPQUVDCjMIxpIBEgMzMTgYiikgzlwo9qyGAzCbroYDOFNAAVgBaghTVEFOREFSRHIIU0oyUU9BRUMKNAjGkgESBDczMjQYzlwgh1koua6GAzCTr4YDOFNAAVgBaghTVEFOREFSRHIIU0oyUU9BRUMSCggBEAEYASoCRkkYASIECAEQASgCKAMoBDAB) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,179 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1178.63&airProductToken=AQqgAQo0CMaSARIENzMyNRiHWSDOXCiml_4CMICY_gI4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzE5GM5cIIopKNqY_gIwmJr-AjhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgM2ODEYiikgkgEo_Jr-AjDcnv4COElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKoAEKMwjGkgESAzY4MBiSASCKKSjLqIYDMJeshgM4U0AAWAFqCFNUQU5EQVJEcghTSjJRT0FFQwozCMaSARIDMzE4GIopIM5cKPashgMwm66GAzhTQAFYAWoIU1RBTkRBUkRyCFNKMlFPQUVDCjQIxpIBEgQ3MzI0GM5cIIdZKLmuhgMwk6-GAzhTQAFYAWoIU1RBTkRBUkRyCFNKMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Icelandair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/fi.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,184 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1183.53&airProductToken=AQqgAQo0CMaSARIENzMxNRiHWSCgbCjqlv4CMLWX_gI4SUAAWAFqCFNUQU5EQVJEcghJSjJRT0FFQwozCMaSARIDMzA3GKBsIIopKMGY_gIwk5r-AjhJQAFYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgM2ODEYiikgkgEo_Jr-AjDcnv4COElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKoAEKMwjGkgESAzY4MBiSASCKKSjLqIYDMJeshgM4U0AAWAFqCFNUQU5EQVJEcghTSjJRT0FFQwozCMaSARIDMzE4GIopIM5cKPashgMwm66GAzhTQAFYAWoIU1RBTkRBUkRyCFNKMlFPQUVDCjQIxpIBEgQ3MzI0GM5cIIdZKLmuhgMwk6-GAzhTQAFYAWoIU1RBTkRBUkRyCFNKMlFPQUVDEgoIARABGAEqAkZJGAEiBAgBEAEoAigDKAQwAQ) ![Finnair](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AY.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,189 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1188.43&airProductToken=AQqfAQozCMGyARIDOTEzGIdZIM5cKKaX_gIwgJj-AjhPQABYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgMzMTkYzlwgiiko2pj-AjCYmv4COElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKMwjGkgESAzY4MRiKKSCSASj8mv4CMNye_gI4SUABWAFqCFNUQU5EQVJEcghJSjJRT0FFQwqfAQozCMaSARIDNjgwGJIBIIopKMuohgMwl6yGAzhJQABYAWoIU1RBTkRBUkRyCElKMlFPQUVDCjMIxpIBEgMzMTgYiikgzlwo9qyGAzCbroYDOElAAVgBaghTVEFOREFSRHIISUoyUU9BRUMKMwjBsgESAzkxNhjOXCCHWSj0sIYDMMmxhgM4T0ABWAFqCFNUQU5EQVJEcghJSjJRT0FFQxIKCAEQARgBKgJGSRgBIgQIARABKAIoAygEMAE) ![Delta](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/DL.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,203 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1202.23&airProductToken=AQpvCjYIxJgBEgQ5MjU3GIdZIICTASislf4CMMyW_gI4RUAAWAFqCU1BSU5CQVNJQ3IIWFlMOFRCTEEKNQjEmAESAzE0MxiAkwEgkgEoq5f-AjChnP4COEVAAVgBaglNQUlOQkFTSUNyCFhZTDhUQkxBCmwKMwjEmAESAjgwGJIBIOIwKK2ohgMwiq2GAzhFQABYAWoJTUFJTkJBU0lDcghYWUw4VEJMQQo1CMSYARIEODQ5MhjiMCCHWSjNroYDMIGwhgM4RUABWAFqCU1BSU5CQVNJQ3IIWFlMOFRCTEESCggBEAEYASoCREwYASIECAEQASgCKAMoBDAB) ![British Airways](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/BA.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,277 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1276.70&airProductToken=AQpmCjIIwoIBEgQ2MDM1GIdZIOuJASifm_4CMNic_gI4UUAAWAFqBU5PQkFHcghRTE4wQzhCVwowCMKCARICNTMY64kBIJIBKNWi_gIwsqf-AjhRQAFYAWoFTk9CQUdyCFFMTjBDOEJXCmYKMAjCggESAjQ4GJIBIOuJASjKqoYDMISvhgM4T0AAWAFqBU5PQkFHcghPTE4wQzhCVwoyCMKCARIENjAzNBjriQEgh1ko4rGGAzCRs4YDOE9AAVgBagVOT0JBR3IIT0xOMEM4QlcSCggBEAEYASoCQkEYASIECAEQASgCKAMwDQ) ![Air Canada](//images.trvl-media.com/media/content/expus/graphics/static_content/fusion/v0.1b/images/airlines/AC.gif) Thu, Nov 27 - Fri, Feb 27 HEL Helsinki SEA Seattle CA $1,305 Roundtrip found 2 days ago [](https://expedia.ca/Flights-Search?trip=roundtrip&leg1=from:HEL,to:SEA,departure:27/11/2025TANYT&leg2=from:SEA,to:HEL,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:1304.13&airProductToken=AQqbAQoxCMGGARIEOTA5MhiHWSClBCinlf4CMMyW_gI4S0AAWAFqBUJBU0lDcghLTVQzRFhCUQoyCMGGARIEOTEwMRilBCC4jQEoxJf-AjC_nP4COEtAAVgBagVCQVNJQ3IIS01UM0RYQlEKMgjBhgESBDg4MDYYuI0BIJIBKKef_gIw5J_-AjhLQAFYAWoFQkFTSUNyCEtNVDNEWEJRCpsBCjIIwYYBEgQ4ODAzGJIBILiNASi9poYDMP6mhgM4S0AAWAFqBUJBU0lDcghLTVQzRFhCUQoyCMGGARIEOTEwMBi4jQEgpQQonqiGAzD7rIYDOEtAAVgBagVCQVNJQ3IIS01UM0RYQlEKMQjBhgESBDkxNzEYpQQgh1kohK-GAzCasIYDOEtAAVgBagVCQVNJQ3IIS01UM0RYQlESCggCEAEYAioCQUMYASIECAEQASgCKAMoBDAN) ## Find the cheapest month to fly from Helsinki (HEL) to Seattle (SEA) ### May is typically the cheapest month to fly From CA $721 - CA $1,400 per traveller. Flight from Helsinki to Seattle (HEL - SEA) route information | Origin airport | Vantaa | | --- | --- | | Destination airport | Seattle - Tacoma Intl. | | Roundtrip price | CA $1,157 | | Distance | 7628 km | ## Helsinki to Seattle Flights **The easy way to book your flights from Helsinki to Seattle**  With Expedia, it’s simple to find and book flights to Seattle from Helsinki 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 Helsinki to Seattle today, tomorrow, or this week.   **Save dollars with cheap flights from Vantaa, HEL to Seattle - Tacoma Intl., SEA**  Sort your search results by price to find great deals on your flight from Helsinki to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Helsinki currently is just CA $1,158 rising to CA $1,305.   Here are more money-saving tips:  - Fly in November 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 Helsinki**  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 Helsinki Airport to Sea-Tac Airport? > If you're planning on travelling between Vantaa Airport (HEL) and Seattle - Tacoma Intl. Airport (SEA), round-trip journeys start from CA $1,158. This price is based on fares available within the last 7 days on Expedia for flights departing within the next year, so don't delay. Book now and save yourself both money and time. Prices and availability are subject to change. Additional terms apply. ### Do I need to pay a cancellation fee if I cancel my flight from HEL to Sea-Tac Airport? > We get that life can throw the odd curveball, so we've made it as hassle-free as possible for you to cancel your flight online. Just visit the [Customer Service Portal](https://www.expedia.ca/helpcenter) and follow the instructions. ### How do I find cheap flights from HEL to SEA that have flexible change policies? > Flights from Helsinki Airport to Sea-Tac Airport with flexible change policies are available from several airlines. Simply use our "No change fees" filter during your search. You'll only need to pay the cost difference between flights, without any extra fees to worry about. ### How many hours is the flight from Helsinki Airport to Sea-Tac Airport? > Make the 13 hours and 58 minutes between Helsinki Airport and Seattle - Tacoma Intl. Airport (SEA) as comfortable as you can. Bring the essentials, like a water bottle, toothbrush and toiletries, and sit back and enjoy the flight! ### How far is the flight from Vantaa Airport (HEL) to Sea-Tac Airport? > Vantaa to SeaTac is around 7,700 kilometres, so be prepared to spend quite a while in the air. Make sure you pack all the essentials, from your earplugs to your eye mask. Take a couple of snacks to munch on throughout your flight too. ### Which airlines fly direct from HEL to Sea-Tac Airport? > Finnair (AY) will get you from HEL to Seattle - Tacoma Intl. Airport (SEA) safely and comfortably. Choose from 0 direct flights each month along this route. ### Are Vantaa Airport (HEL) to SEA flight tickets cheaper when they're purchased at the last minute? > Late planners can occasionally score a bargain, with some super cheap fares from Helsinki Airport to SEA cropping up a few weeks before the date of departure. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continuously — as early as a year in advance in some cases. 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