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LCY to BFI: distance & flight time
London (London City Airport) → Seattle (Boeing Field King County International Airport)
4,793 mi
7,713 km · 4,165 nm
9h 52m
estimated nonstop flight time
-8h
time difference · heading northwest
See live LCY→BFI fares Phone-only fares on this route — call free
Flight time details
4,793 miles nonstop takes roughly 9h 52m 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
- LCY — London City 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 LCY
- LHR · London Heathrow Airport22 mi away
- LGW · London Gatwick Airport27 mi away
- BQH · London Biggin Hill Airport12 mi away
- NHT · RAF Northolt21 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 LCY from BFI?
The flight distance from London (LCY) to Seattle (BFI) is 4,793 miles (7,713 km, 4,165 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from LCY to BFI?
A nonstop flight takes about 9h 52m 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 LCY to BFI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on LCY–BFI that never appear on search engines, with no booking fees.