Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline Icelandair

The cheapest airline(s) flying from London to Seattle is Icelandair.

  • Icelandair Icelandair
  • Delta Air Lines Delta Air Lines
  • United Airlines United Airlines
  • British Airways British Airways
  • KLM KLM
  • Virgin Atlantic Airways Virgin Atlantic Airways
  • Air Canada Air Canada
  • American Airlines American Airlines
  • Lufthansa Lufthansa
  • Austrian Airlines Austrian Airlines
Cheapest Month February

Travel Period: November 2024 - October 2025

The cheapest month(s) to fly from London to Seattle is February.

  • Nov 2024
  • Dec 2024
  • Jan 2025
  • Feb 2025
  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
  • Jul 2025
  • Aug 2025
  • Sep 2025
  • Oct 2025
Cheapest Day of the Week Thursday

The cheapest day(s) of the week to fly from London to Seattle is Thursday.

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday

Flight Schedules

Last Updated: Mon, 2 Sep, 2024

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    • Airline Filter by Airline
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      • Availability
        • M
        • T
        • W
        • T
        • F
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        • S
      • 09:45 LHR
        11:30 SEA
        9Hrs, 45m Direct
      • LHRLondon Heathrow Airport 09:45 - SEA 11:30 9h 45m Direct
      • LHRLondon Heathrow Airport 09:45
      • SEASeattle/Tacoma International Airport 11:30
      • 9h 45m
      • Direct
      • British Airways (BA 53)Boeing 777
      • British Airways (BA 53)
        • -
        • -
        • -
        • T
        • -
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        • S
      • Boeing 777
      • 09:50 LHR
        11:35 SEA
        9Hrs, 45m Direct
      • LHRLondon Heathrow Airport 09:50 - SEA 11:35 9h 45m Direct
      • LHRLondon Heathrow Airport 09:50
      • SEASeattle/Tacoma International Airport 11:35
      • 9h 45m
      • Direct
      • British Airways (BA 53)Boeing 777
      • British Airways (BA 53)
        • M
        • T
        • W
        • -
        • F
        • S
        • -
      • Boeing 777
      • 12:45 LHR
        14:40 SEA
        9Hrs, 55m Direct
      • LHRLondon Heathrow Airport 12:45 - SEA 14:40 9h 55m Direct
      • LHRLondon Heathrow Airport 12:45
      • SEASeattle/Tacoma International Airport 14:40
      • 9h 55m
      • Direct
      • Virgin Atlantic Airways (VS 105)Boeing 787 9
      • Virgin Atlantic Airways (VS 105)
        • M
        • T
        • W
        • T
        • F
        • S
        • S
      • Boeing 787 9
      • 15:45 LHR
        17:30 SEA
        9Hrs, 45m Direct
      • LHRLondon Heathrow Airport 15:45 - SEA 17:30 9h 45m Direct
      • LHRLondon Heathrow Airport 15:45
      • SEASeattle/Tacoma International Airport 17:30
      • 9h 45m
      • Direct
      • British Airways (BA 49)Boeing Dreamliner Series 10
      • British Airways (BA 49)
        • -
        • -
        • -
        • -
        • -
        • S
        • -
      • Boeing Dreamliner Series 10
      • 16:00 LHR
        17:45 SEA
        9Hrs, 45m Direct
      • LHRLondon Heathrow Airport 16:00 - SEA 17:45 9h 45m Direct
      • LHRLondon Heathrow Airport 16:00
      • SEASeattle/Tacoma International Airport 17:45
      • 9h 45m
      • Direct
      • British Airways (BA 49)Boeing Dreamliner Series 10
      • British Airways (BA 49)
        • M
        • T
        • W
        • T
        • F
        • -
        • S
      • Boeing Dreamliner Series 10
      • 16:50 LHR
        19:15 SEA
        10Hrs, 25m Direct
      • LHRLondon Heathrow Airport 16:50 - SEA 19:15 10h 25m Direct
      • LHRLondon Heathrow Airport 16:50
      • SEASeattle/Tacoma International Airport 19:15
      • 10h 25m
      • Direct
      • Delta Air Lines (DL 21)Airbus A330 900 Neo
      • Delta Air Lines (DL 21)
        • -
        • T
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        • F
        • S
        • S
      • Airbus A330 900 Neo
      • 16:50 LHR
        19:20 SEA
        10Hrs, 30m Direct
      • LHRLondon Heathrow Airport 16:50 - SEA 19:20 10h 30m Direct
      • LHRLondon Heathrow Airport 16:50
      • SEASeattle/Tacoma International Airport 19:20
      • 10h 30m
      • Direct
      • Delta Air Lines (DL 21)Airbus A330 900 Neo
      • Delta Air Lines (DL 21)
        • M
        • -
        • -
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      • Airbus A330 900 Neo
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      What’s the fastest flight time from London to Seattle?

      The fastest flight time for direct flights from London to Seattle is 9 hours 45 minutes. Check latest flight schedules & prices on Wego.

      What’s the most popular airline flying from London to Seattle?

      The most popular airline flying from London to Seattle is Air Canada. Find the latest flight deals on Wego.

      How far is Seattle from London?

      The flight distance between London and Seattle is 7700km. Check all available flights on Wego.

      When is the earliest and latest flight of the day?

      The earliest flight of the day departs at 09:45. The last flight of the day departs at 09:45. See the full list of flight times on Wego.

      How many airlines offer direct flights from London to Seattle?

      There are 3 airlines that offer direct flights from London to Seattle. Find out the list of airlines on Wego.

      Popular Airlines flying from London to Seattle

      Air Canada ‏()
      Aer Lingus ‏()
      United Airlines ‏()

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