Cheap flights from London to Seattle

Direct flight: 7,703 km, ~9h 4m from London (LHR) to Seattle (SEA).

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Live fares · LHR → SEA

Frequently asked questions

  • How long is the flight from London to Seattle?

    Direct flights from LHR to SEA cover approximately 7,703 km (4,786 miles), with an estimated flight time of 9h 4m. Operating airlines: AS, BA, DL, VS.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: LHR → SEA Cheapest month to fly to Seattle All flights from London All flights to Seattle Flights to USA Visa-free with United Kingdom passport AS routes BA routes DL routes