Flight Routes from London Heathrow to Seattle Tacoma

Compare cheap outbound and return flights from London Heathrow (LHR) to Seattle-Tacoma (SEA) and find the best offer from numerous airlines and travel agencies.

Trip type
Fastest flight
non-stop flights
19x / week
Flight distance
7,710 km
Time difference

Flight schedule from London Heathrow (LHR) to Seattle-Tacoma (SEA)

Select a travel date in the flight schedule for the route from London Heathrow (LHR) to Seattle-Tacoma (SEA) and compare affordable flight deals.

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Matching outbound flightsLHR–SEA · 12 of 12
fromto
dep.arr.
durationstopovers
  1. September 20 – 26, 2026
  2. Sep 27 – Oct 3, 2026
  3. October 4 – 10, 2026
    1. LHRSEA
      nonstop
      1. British Airways
    2. LHRSEA
      1 stopover
      1. Aer Lingus Irish Airlines
    3. LHRSEA
      nonstop
      1. Virgin Atlantic Airways
    4. LHRSEA
      nonstop
      1. British Airways
    5. LHRSEA
      nonstop
      1. Alaska Airlines
    6. LHRSEA
      nonstop
      1. Alaska Airlines
    7. LHRSEA
      nonstop
      1. Delta Air Lines
    8. LHRSEA
      nonstop
      1. Delta Air Lines
    9. LHRSEA
      nonstop
      1. Delta Air Lines
    10. LHRSEA
      1 stopover
      1. Lufthansa
    11. LHRSEA
      1 stopover
      1. Icelandair
    12. LHRSEA
      1 stopover
      1. Icelandair

      Important flight information

      Discover more flights around London Heathrow and Seattle-Tacoma

      Departure airport Airport London Heathrow (LHR)
      Departure country Flights from United Kingdom
      Arrival airport Airport Seattle-Tacoma International Airport, WA (SEA)
      Destination country Flights to United States
      Departure country - Arrival airport United Kingdom - Seattle-Tacoma International Airport, WA
      City-Code - Arrival airport London - Seattle-Tacoma International Airport, WA
      Departure airport - Destination country London Heathrow - United States
      Alternative routes to United States
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