| Distance | 7,742 km / 4,810 miles |
|---|---|
| Estimated Flight Time | ≈ 9.1 hours nonstop |
| Origin Time Zone | Europe/London |
| Destination Time Zone | America/Los_Angeles |
These carriers are headquartered in one of the two countries on this route — check directly for current route-specific availability:
AA American Airlines
DL Delta Air Lines
UA United Airlines
WN Southwest Airlines
B6 JetBlue Airways
AS Alaska Airlines
A segment on this route typically looks like this in a raw PNR:
2 BA 287 Y 15JUL 2*LGWSEA HK1 800A 2000P
The six-letter pair LGWSEA tells you the flight departs London and arrives in Seattle.
London (LGW) is approximately 7,742 km (4,810 miles) from Seattle (SEA).
A nonstop flight from LGW to SEA takes roughly 9.1 hours, based on typical long-haul cruise speed. Actual time varies by aircraft, routing, and wind.
London is on Europe/London and Seattle is on America/Los_Angeles — check both before planning connections or calling clients.
Paste any PNR on this route and get a client-ready itinerary in seconds, with layover times calculated using the correct time zones — free, no signup.
Try the Free Converter →