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How far is London from Seattle, WA?

The distance between Seattle (Seattle Boeing Field) and London (London Stansted Airport) is 4791 miles / 7710 kilometers / 4163 nautical miles.

Seattle Boeing Field – London Stansted Airport

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4791
Miles
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7710
Kilometers
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4163
Nautical miles

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Distance from Seattle to London

There are several ways to calculate the distance from Seattle to London. Here are two standard methods:

Vincenty's formula (applied above)
  • 4791.052 miles
  • 7710.451 kilometers
  • 4163.310 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
  • 4776.659 miles
  • 7687.288 kilometers
  • 4150.803 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 Seattle to London?

The estimated flight time from Seattle Boeing Field to London Stansted Airport is 9 hours and 34 minutes.

Flight carbon footprint between Seattle Boeing Field (BFI) and London Stansted Airport (STN)

On average, flying from Seattle to London generates about 557 kg of CO2 per passenger, and 557 kilograms equals 1 227 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to London

See the map of the shortest flight path between Seattle Boeing Field (BFI) and London Stansted Airport (STN).

Airport information

Origin 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
Destination London Stansted Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: STN
ICAO Code: EGSS
Coordinates: 51°53′5″N, 0°14′5″E