Flights from London to Seattle available from
expand_more
today
today
Fly in the next three months: flights from London to Seattle
flight_takeoff
flight_land
GBP
London (LHR)to
Seattle (SEA)21 04 2024 - 28 04 2024
From
GBP 1,045*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)25 05 2024 - 06 06 2024
From
GBP 718*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)03 05 2024 - 16 05 2024
From
GBP 634*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)20 06 2024 - 11 07 2024
From
GBP 645*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)25 05 2024 - 25 06 2024
From
GBP 723*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)04 06 2024 - 18 06 2024
From
GBP 1,003*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)19 04 2024 - 26 04 2024
From
GBP 590*
Round trip
/
Economy
London (LHR)to
Seattle (SEA)30 04 2024 - 03 05 2024
From
GBP 650*
Round trip
/
Economy
London (LGW)to
Seattle (SEA)19 04 2024 - 26 04 2024
From
GBP 561*
Round trip
/
Economy
London (LGW)to
Seattle (SEA)20 04 2024 - 27 04 2024
From
GBP 1,109*
Round trip
/
Economy
London (LGW)to
Seattle (SEA)03 05 2024 - 16 05 2024
From
GBP 998*
Round trip
/
Economy
London (LGW)to
Seattle (SEA)21 06 2024 - 28 06 2024
From
GBP 1,141*
Round trip
/
Economy
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking
Plan ahead for your trip from London to Seattle with Icelandair
flight_takeoff
flight_land
GBP
| FromLondon (LHR) | ToSeattle (SEA) | Round trip / Economy | 20 12 2024 - 03 01 2025 | From GBP 659* Seen: 5 hrs ago |
| FromLondon (LHR) | ToSeattle (SEA) | Round trip / Economy | 04 02 2025 - 27 02 2025 | From GBP 541* Seen: 1 day ago |
| FromLondon (LGW) | ToSeattle (SEA) | Round trip / Economy | 20 10 2024 - 24 10 2024 | From GBP 564* Seen: 23 hrs ago |
| FromLondon (LGW) | ToSeattle (SEA) | Round trip / Economy | 20 11 2024 - 30 11 2024 | From GBP 537* Seen: 2 days ago |
*Fares displayed have been collected within the last 72hrs and may no longer be available at the time of booking
Flights to Seattle from London
For the best fares and an unparalleled flying experience, choose Icelandair to fly from London (LHR/LGW) to Seattle (SEA).
Icelandair provides hundreds of hours of movies and music in our in-flight entertainment system, Wi-Fi access on most flights, and a USB power port at every seat to power up your laptop or smartphone.
FAQs about travel from London to Seattle
Helpful information for travellers visiting Seattle
What is the flight time from London to Seattle?
The flight duration from London Heathrow (LHR) to Seattle (SEA) is roughly 9-10 hours non-stop, though this does not account for any layovers you have planned.
Our in-flight entertainment will make your journey fly by, and our abundance of charging points means that you can land in Seattle raring to go!
What is the flight distance from London to Seattle Tacoma Airport?
The distance from London to Seattle is around 4,787 miles or 7,704 kilometres. Please note that the actual flight distance may differ based on the specific airline’s route as well as other factors.
How can I get the cheapest flights to Seattle from London?
Being flexible on when you book your flights, as well as which airport in London you fly from can help you find cheap flights from London to Seattle. We also advise booking your holiday in advance and checking our flight deals regularly to secure the best price.
Does Icelandair offer direct flights to Seattle from London?
Passengers flying to Seattle from London with Icelandair will change at Keflavík International Airport before their onward journey to Seattle. The flight time from Keflavík to Seattle is around 7-8 hours.
Which London airports offer Icelandair flights to Seattle?
Passengers travelling from London to Seattle with Icelandair can fly from either London Heathrow Airport or London Gatwick Airport. Use the flight finder tool above to choose flights from your preferred airport.
