LondonSeattleDirect FlightsLHR–BFI
London (London Heathrow Airport) to Seattle (Boeing Field/King County International Airport).
Flight time from LHR to BFI is estimated at about 10h 27m, based on the 4,781-mile great-circle distance. Our current captured departure sample includes Scheduled across 2 captured airlines, with Alaska Airlines appearing most often in that sample.
Plan this routeAt a glance
| Est. flight time | Distance | Captured freq. | Type |
|---|---|---|---|
| ~10h 27m Estimated from great-circle distance — no tracked flights yet. | 4,781 mi | Scheduled From the current provider sample; confirm live timetables before booking. | International |
Airlines on this route
Captured airlines for LHR to BFI
Our current provider sample includes Scheduled from LHR to BFI across 2 captured airlines.
| Airline | Captured daily freq. | Aircraft | Departures (local) |
|---|---|---|---|
| Alaska Airlines | Scheduled | Varies by schedule | — |
| Virgin Atlantic | Scheduled | Varies by schedule | — |
Typical aircraft
Methodology: airline, aircraft, terminal, and departure-time details come from the rolling scheduled-departures window for LHR to BFI, last seen June 14, 2026. Frequency uses 0 scheduled departures across 1 observed day; flight time is estimated from great-circle distance until this route has enough tracked flights for an observed average. Provider coverage can miss operators on some routes, so confirm live timetables before booking.
Route FAQ
How long is the flight from LHR to BFI?
The LHR to BFI flight time is estimated at about 10h 27m from great-circle distance until enough tracked flights are available.
How far is LHR from BFI?
LHR to BFI is about 4,781 miles by air.
Which airlines fly from LHR to BFI?
Our current provider sample for LHR to BFI includes Alaska Airlines, Virgin Atlantic. Confirm live timetables before booking.