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
  • Virgin Atlantic Airways Virgin Atlantic Airways
  • British Airways British Airways
  • American Airlines American Airlines
  • Air France Air France
  • United Airlines United Airlines
  • JetBlue Airways JetBlue Airways
  • KLM KLM
  • Air Canada Air Canada
  • Iberia Iberia
Cheapest Month June

Travel Period: February 2025 - January 2026

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

  • Feb 2025
  • Mar 2025
  • Apr 2025
  • May 2025
  • Jun 2025
  • Jul 2025
  • Aug 2025
  • Sep 2025
  • Oct 2025
  • Nov 2025
  • Dec 2025
  • Jan 2026
Cheapest Day of the Week Friday

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

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

Flight Schedules

Last Updated: Thu, 2 Jan, 2025

  • Time Earliest
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    • Earliest
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  • Availability
    • M
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    • S
  • 13:05 LHR
    15:05 SEA
    10Hrs, 00m Direct
  • LHRLondon Heathrow Airport 13:05 - SEA 15:05 10h Direct
  • LHRLondon Heathrow Airport 13:05
  • SEASeattle/Tacoma International Airport 15:05
  • 10h
  • Direct
  • Virgin Atlantic Airways (VS 105)Boeing 787 9
  • Virgin Atlantic Airways (VS 105)
    • -
    • -
    • -
    • -
    • -
    • S
    • S
  • Boeing 787 9
  • 15:00 LHR
    16:55 SEA
    9Hrs, 55m Direct
  • LHRLondon Heathrow Airport 15:00 - SEA 16:55 9h 55m Direct
  • LHRLondon Heathrow Airport 15:00
  • SEASeattle/Tacoma International Airport 16:55
  • 9h 55m
  • Direct
  • British Airways (BA 49)Boeing Dreamliner Series 10
  • British Airways (BA 49)
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing Dreamliner Series 10
  • 06:20 LHR
    11:20 SEA
    13Hrs, 00m 1 Stop (CDG)
  • LHRLondon Heathrow Airport 06:20 - SEA 11:20 13h 1 Stop (CDG) Paris
  • LHRLondon Heathrow Airport 06:20
    CDGParis Charles de Gaulle Airport 10:10
  • CDGParis Charles de Gaulle Airport 08:40
    SEASeattle/Tacoma International Airport 11:20
  • 13h (1h 30m)
  • 1 Stop CDG · Paris 1h 30m
  • Air France (AF 1381)Airbus A220 300
    Air France (AF 368)Airbus A359
  • Air France (AF 1381)
    • -
    • T
    • -
    • T
    • -
    • S
    • -
  • 06:35 LHR
    13:20 SEA
    14Hrs, 45m 1 Stop (MUC)
  • LHRLondon Heathrow Airport 06:35 - SEA 13:20 14h 45m 1 Stop (MUC) Munich
  • LHRLondon Heathrow Airport 06:35
    MUCMunich International Airport 11:40
  • MUCMunich International Airport 09:25
    SEASeattle/Tacoma International Airport 13:20
  • 14h 45m (2h 15m)
  • 1 Stop MUC · Munich 2h 15m
  • Lufthansa (LH 2485)Airbus A320 Neo
    Lufthansa (LH 488)Airbus A359
  • Lufthansa (LH 2485)
    • -
    • T
    • -
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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 55 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 American Airlines. 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 06:20. The last flight of the day departs at 06:20. See the full list of flight times on Wego.

How many airlines offer direct flights from London to Seattle?

There are 2 airlines that offer direct flights from London to Seattle. Find out the list of airlines on Wego.