How far is Seattle, WA, from London?
The distance between London (London Heathrow Airport) and Seattle (Seattle Boeing Field) is 4795 miles / 7717 kilometers / 4167 nautical miles.
London Heathrow Airport – Seattle Boeing Field
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Distance from London to Seattle
There are several ways to calculate the distance from London to Seattle. Here are two standard methods:
Vincenty's formula (applied above)- 4795.421 miles
- 7717.481 kilometers
- 4167.107 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth's surface using an ellipsoidal model of the planet.
Haversine formula- 4781.060 miles
- 7694.371 kilometers
- 4154.628 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance – the shortest distance between two points).
How long does it take to fly from London to Seattle?
The estimated flight time from London Heathrow Airport to Seattle Boeing Field is 9 hours and 34 minutes.
What is the time difference between London and Seattle?
The time difference between London and Seattle is 8 hours. Seattle is 8 hours behind London.
Flight carbon footprint between London Heathrow Airport (LHR) and Seattle Boeing Field (BFI)
On average, flying from London to Seattle generates about 557 kg of CO2 per passenger, and 557 kilograms equals 1 229 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from London to Seattle
See the map of the shortest flight path between London Heathrow Airport (LHR) and Seattle Boeing Field (BFI).
Airport information
| Origin | London Heathrow Airport |
|---|---|
| City: | London |
| Country: | United Kingdom  |
| IATA Code: | LHR |
| ICAO Code: | EGLL |
| Coordinates: | 51°28′14″N, 0°27′42″W |
| Destination | Seattle Boeing Field |
|---|---|
| City: | Seattle, WA |
| Country: | United States  |
| IATA Code: | BFI |
| ICAO Code: | KBFI |
| Coordinates: | 47°31′47″N, 122°18′7″W |