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LGW to BFI: distance & flight time
London (London Gatwick Airport) → Seattle (Boeing Field King County International Airport)
4,806 mi
7,734 km · 4,176 nm
9h 53m
estimated nonstop flight time
-8h
time difference · heading northwest
See live LGW→BFI fares Phone-only fares on this route — call free
Flight time details
4,806 miles nonstop takes roughly 9h 53m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- LGW — London Gatwick Airport · London, United Kingdom
- BFI — Boeing Field King County International Airport · Seattle, United States
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near LGW
- LHR · London Heathrow Airport25 mi away
- KRH · Redhill Aerodrome5 mi away
- BQH · London Biggin Hill Airport16 mi away
- ESH · Shoreham Airport22 mi away
Near BFI
- SEA · Seattle Tacoma International Airport6 mi away
- RNT · Renton Municipal Airport5 mi away
- PWT · Bremerton National Airport22 mi away
- TIW · Tacoma Narrows Airport22 mi away
Frequently asked questions
How far is LGW from BFI?
The flight distance from London (LGW) to Seattle (BFI) is 4,806 miles (7,734 km, 4,176 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LGW to BFI?
A nonstop flight takes about 9h 53m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between London and Seattle?
Seattle is 8 hours behind London.
What is the cheapest way to fly from LGW to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LGW–BFI that never appear on search engines, with no booking fees.