Fare Guide

Estimated lowest fares found within 7 days

Cheapest Airline Icelandair

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

  • Icelandair Icelandair
  • Lufthansa Lufthansa
  • Delta Air Lines Delta Air Lines
  • United Airlines United Airlines
  • Swiss Swiss
  • Virgin Atlantic Airways Virgin Atlantic Airways
  • KLM KLM
  • Air France Air France
  • Air Canada Air Canada
  • American Airlines American Airlines
Cheapest Month July

Travel Period: July 2024 - June 2025

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

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

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

  • Sun Sunday
  • Mon Monday
  • Tue Tuesday
  • Wed Wednesday
  • Thu Thursday
  • Fri Friday
  • Sat Saturday
Cheapest Time 11pm

The cheapest time of the day to fly from Seattle to London is in the evening.

Early Morning 12:01am - 06:00am
Morning 6:01am - 12:00pm
Afternoon 12:01pm - 6:00pm
Evening 6:01pm to 12:00am
12am
6am
12pm
6pm

Flight Schedules

Last Updated: Sun, 2 Jun, 2024

  • Depart Earliest
    • Earliest
    • Latest
  • Arrive
    • Earliest
    • Latest
  • Airline Filter by Airline
    All
  • Total Duration
    • Shortest
    • Longest
  • Stopover
    All
  • Availability
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • 19:40 - 13:15+ 1
    SEA - LHR
  • 19:40 (SEA)Seattle/Tacoma International Airport
  • 13:15 (LHR)London Heathrow Airport + 1
  • Delta Air Lines (DL 20)Airbus Industrie 330 300
  • 9h 35m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Airbus Industrie 330 300
  • 20:00 - 13:15+ 1
    SEA - LHR
  • 20:00 (SEA)Seattle/Tacoma International Airport
  • 13:15 (LHR)London Heathrow Airport + 1
  • British Airways (BA 48)Boeing Dreamliner Series 10
  • 9h 15m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing Dreamliner Series 10
  • 22:35 - 16:05+ 1
    SEA - LHR
  • 22:35 (SEA)Seattle/Tacoma International Airport
  • 16:05 (LHR)London Heathrow Airport + 1
  • American Airlines (AA 156)Boeing 777 200
  • 9h 30m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing 777 200
  • 13:35 - 06:50+ 1
    SEA - LHR
  • 13:35 (SEA)Seattle/Tacoma International Airport
  • 06:50 (LHR)London Heathrow Airport + 1
  • British Airways (BA 52)Boeing 777
  • 9h 15m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing 777
  • 14:50 - 08:15+ 1
    SEA - LHR
  • 14:50 (SEA)Seattle/Tacoma International Airport
  • 08:15 (LHR)London Heathrow Airport + 1
  • Virgin Atlantic Airways (VS 106)Boeing 787 9
  • 9h 25m
  • Direct
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • Boeing 787 9

Connecting Flights

  • 18:50 - 13:45+ 1
    SEA - MUC
    16:05 - 17:05+ 1
    MUC - LHR
  • 18:50 (SEA)Seattle/Tacoma International Airport
    16:05 (MUC)Munich International Airport
  • 13:45 (MUC)Munich International Airport + 1
    17:05 (LHR)London Heathrow Airport
  • Lufthansa (LH 489)Airbus A359
    Lufthansa (LH 2478)Airbus A320 Neo
  • 14h 15m (2h 20m)
  • MUC Munich 2h 20m
    • -
    • T
    • -
    • -
    • F
    • -
    • S
  • 23:00 - 13:25+ 1
    SEA - KEF
    16:10 - 20:20+ 1
    KEF - LHR
  • 23:00 (SEA)Seattle/Tacoma International Airport
    16:10 (KEF)Reykjavik Keflavik International Airport
  • 13:25 (KEF)Reykjavik Keflavik International Airport + 1
    20:20 (LHR)London Heathrow Airport
  • Icelandair (FI 684)Boeing 757 200 Winglets
    Icelandair (FI 454)Boeing 737 Max 8 Passenger
  • 13h 20m (2h 45m)
  • KEF Reykjavik 2h 45m
    • M
    • T
    • W
    • T
    • F
    • S
    • S
  • 15:50 - 06:15+ 1
    SEA - KEF
    07:40 - 11:55+ 1
    KEF - LHR
  • 15:50 (SEA)Seattle/Tacoma International Airport
    07:40 (KEF)Reykjavik Keflavik International Airport
  • 06:15 (KEF)Reykjavik Keflavik International Airport + 1
    11:55 (LHR)London Heathrow Airport
  • Icelandair (FI 680)Boeing 757 200 Winglets
    Icelandair (FI 450)Boeing 757 300 Winglets
  • 12h 05m (1h 25m)
  • KEF Reykjavik 1h 25m
    • M
    • T
    • W
    • T
    • F
    • S
    • S
No Schedules Sorry, there are no schedules matching your filters. Try removing one. reset
What’s the fastest flight time from Seattle to London?

The fastest flight time for direct flights from Seattle to London is 9 hours 15 minutes. Check latest flight schedules & prices on Wego.

How far is London from Seattle?

The flight distance between Seattle and London 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 13:35. The last flight of the day departs at 18:50. See the full list of flight times on Wego.

How many airlines offer direct flights from Seattle to London?

There are 4 airlines that offer direct flights from Seattle to London. Find out the list of airlines on Wego.