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How far is Seattle, WA, from London?

The distance between London (London Gatwick Airport) and Seattle (Seattle Boeing Field) is 4820 miles / 7757 kilometers / 4189 nautical miles.

London Gatwick Airport – Seattle Boeing Field

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4820
Miles
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7757
Kilometers
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4189
Nautical miles

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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)
  • 4820.257 miles
  • 7757.452 kilometers
  • 4188.689 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
  • 4805.864 miles
  • 7734.288 kilometers
  • 4176.181 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 Gatwick Airport to Seattle Boeing Field is 9 hours and 37 minutes.

Flight carbon footprint between London Gatwick Airport (LGW) and Seattle Boeing Field (BFI)

On average, flying from London to Seattle generates about 561 kg of CO2 per passenger, and 561 kilograms equals 1 236 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 Gatwick Airport (LGW) and Seattle Boeing Field (BFI).

Airport information

Origin London Gatwick Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: LGW
ICAO Code: EGKK
Coordinates: 51°8′53″N, 0°11′25″W
Destination Seattle Boeing Field
City: Seattle, WA
Country: United States Flag of United States
IATA Code: BFI
ICAO Code: KBFI
Coordinates: 47°31′47″N, 122°18′7″W