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Distance between Seattle, WA (BFI) and London (LHR)

Flight distance from Seattle to London (Seattle Boeing Field – London Heathrow Airport) is 4795 miles / 7717 kilometers / 4167 nautical miles. Estimated flight time is 9 hours 34 minutes.

Seattle – London

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4795
Miles
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7717
Kilometers
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4167
Nautical miles

How far is London from Seattle?

There are several ways to calculate distances between Los Angeles and Chicago. Here are two common 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 earth.

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).

Flight Duration

Estimated flight time from Seattle Boeing Field to London Heathrow Airport is 9 hours 34 minutes.

Time difference

The time difference between Seattle and London is 8 hours. London is 8 hours ahead of Seattle.
Seattle time to London time converter

Carbon dioxide emissions

On average flying from Seattle to London generates about 557 kg of CO2 per passenger, 557 kilograms is equal to 1 229 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Seattle to London

Shortest flight path between Seattle Boeing Field (BFI) and London Heathrow Airport (LHR).

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 Heathrow Airport
City: London
Country: United Kingdom Flag of United Kingdom
IATA Code: LHR
ICAO Code: EGLL
Coordinates: 51°28′14″N, 0°27′42″W