$930 Cheap Finnair flights from London to Seattle (LHR to SEA)

Find The Best Day To Fly from London to Seattle

Amazing Finnair LHR to SEA Flight Deals

The cheapest flights to Seattle - Tacoma Intl. found within the past 7 days were $738 round trip and $930 one way. Prices and availability subject to change. Additional terms may apply.

SEA From LHR Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
The Inn at Virginia Mason
Hotel Theodore
The Edgewater Hotel
Don't see what you're looking for?
See all available trips from Heathrow to Seattle - Tacoma Intl.
View all trips

Discover our best Finnair flight from London LHR to Seattle SEA 

To find the best deals on flights to London from Seattle with Finnair, just enter your travel dates, filter by Finnair, and hit search. You’ll find 2 flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from London LHR to Seattle SEA with Finnair 

If you’re planning a round trip, booking return flights with Finnair is usually the most cost-effective option. With airfares ranging from $738 to $2,996, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Finnair flights from London LHR to Seattle SEA 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Finnair flight from London to Seattle costs from $930. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Seattle SEA from  London LHR with Finnair 

To find a cheap Finnair flight from London LHR to Seattle SEA, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Finnair flights from London LHR to Seattle SEA 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as August, or if you book a flight with a stopover. 

 

Find nonstop flights from London LHR to Seattle SEA with Finnair 

If you’re keen to be on Seattle soil fast, don’t waste time with a stopover—filter your search results to show direct Finnair flights only. The journey takes around 9 hour(s) 45 min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Finnair flights from London LHR to Seattle SEA 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Seattle SEA from  London LHR with Finnair on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Finnair Airports
Hop on a(n) Finnair flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
BGONORFlesland12
LHRGBRHeathrow10
OSLNORGardermoen4
FRONORFloro4
KEFISLKeflavik Intl.4
JFKUSAJohn F. Kennedy Intl.4
TOSNORLangnes3

Travelers ❤️ these 🏨 after their flight to Seattle

Coast Gateway Hotel
Coast Gateway Hotel
3.5 out of 5
18415 International Blvd, SeaTac, WA
This hotel features a restaurant, a gym, and a bar/lounge. Traveling on business? Take advantage of the 24-hour business center, free WiFi in public areas, and ...
9.2/10 Wonderful! (7,295 reviews)
"Close to airport and parking. Good restaurant across the parking lot."

Reviewed on Jun 27, 2025

Coast Gateway Hotel
DoubleTree by Hilton Seattle Airport
DoubleTree by Hilton Seattle Airport
4 out of 5
18740 International Boulevard, SeaTac, WA
A nightclub, 2 restaurants, and an outdoor pool are all featured at this hotel. Traveling on business? Take advantage of the 24-hour business center, free WiFi ...
7.6/10 Good! (2,263 reviews)
"Flexibility is missing"

Reviewed on Jun 28, 2025

DoubleTree by Hilton Seattle Airport
Red Roof Inn Seattle Airport - SEATAC
Red Roof Inn Seattle Airport - SEATAC
2 out of 5
16838 International Boulevard, SeaTac, WA
A gym, self parking, and laundry facilities are featured at this hotel. Guests will appreciate perks like free WiFi and a free airport shuttle. There's a safe ...
7.8/10 Good! (4,322 reviews)
"Close to the airport! They offer a 24 hour shuttle service to the airport! They were super nice! We did struggle with turning on the water in the shower but the staff came up and showed us how! The shuttle driver was very nice, loaded our bags, and was a very safe driver."

Reviewed on Jun 29, 2025

Red Roof Inn Seattle Airport - SEATAC
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.
*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.