Direct flights from Seattle to London (SEA → LHR)

Distance 7,703 km (4,786 mi)
Est. duration 9h 4m
SEA
Seattle
Seattle Tacoma International, USA
LHR
London
Heathrow, United Kingdom
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Live fares · SEA → LHR

Available flights

SASNon-stop
from$687
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Frequently asked questions

How far is the flight from Seattle to London? The flight distance from SEA to LHR is approximately 7,703 km (4,786 miles).
How long is the flight from SEA to LHR? The estimated flight time from Seattle to London is approximately 9h 4m.
What airlines fly from SEA to LHR? Airlines operating direct flights from Seattle to London include: AS, BA, DL, VS.

Cheapest fares Seattle → London

Seattle SEA
London LHR
July — August — September — October — November — December —

Related guides for this route

Sibling pages from across Flightmaps — fares, visa rules, country aggregations, and per-airline routes for Seattle → London.

Cheap flights from Seattle to London Cheapest month to fly to London Flights from USA Flights to United Kingdom Visa-free with USA passport All airports in United Kingdom AS routes & destinations All routes by this carrier BA routes & destinations All routes by this carrier DL routes & destinations All routes by this carrier VS routes & destinations All routes by this carrier

Try a nearby airport to Seattle

Flights to London (LHR) from other airports within 350 km of Seattle. Often unlocks cheaper fares or better times.

PAE → LHR 52 km from SEA Everett → London USA · 9 destinations BLI → LHR 151 km from SEA Bellingham → London USA · 7 destinations YYJ → LHR 157 km from SEA Victoria → London Canada · 15 destinations YVR → LHR 205 km from SEA Vancouver → London Canada · 123 destinations PDX → LHR 207 km from SEA Portland → London USA · 90 destinations

Or try a nearby airport to London

Flights from Seattle (SEA) to other airports within 350 km of London.

SEA → LCY 35 km from LHR Seattle → London United Kingdom · 31 destinations SEA → LGW 40 km from LHR Seattle → London United Kingdom · 216 destinations SEA → LTN 46 km from LHR Seattle → London United Kingdom · 137 destinations SEA → STN 68 km from LHR Seattle → London United Kingdom · 202 destinations SEA → SEN 81 km from LHR Seattle → Southend United Kingdom · 25 destinations

Other flights from Seattle (SEA)

Albuquerque (ABQ) Amsterdam (AMS) Anchorage (ANC) Arcata (ACV) Atlanta (ATL) Austin (AUS) Baltimore (BWI) Barcelona (BCN) All 139 destinations →

Other flights from London (LHR)

Aberdeen (ABZ) Abu Dhabi (AUH) Abuja (ABV) Accra (ACC) Addis Ababa (ADD) Algiers (ALG) Almaty (ALA) Amman (AMM) All 224 destinations →