How far is London from Seattle, WA?

The distance between Seattle (Seattle–Tacoma International Airport) and London (London Gatwick Airport) is 4825 miles / 7765 kilometers / 4193 nautical miles.

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)

• 4825.053 miles
• 7765.170 kilometers
• 4192.856 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

• 4810.659 miles
• 7742.005 kilometers
• 4180.348 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–Tacoma International Airport to London Gatwick Airport is 9 hours and 38 minutes.

What is the time difference between Seattle and London?

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

Flight carbon footprint between Seattle–Tacoma International Airport (SEA) and London Gatwick Airport (LGW)

On average, flying from Seattle to London generates about 561 kg of CO2 per passenger, and 561 kilograms equals 1 237 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–Tacoma International Airport (SEA) and London Gatwick Airport (LGW).

Airport information

Origin	Seattle–Tacoma International Airport
City:	Seattle, WA
Country:	United States
IATA Code:	SEA
ICAO Code:	KSEA
Coordinates:	47°26′56″N, 122°18′32″W

Destination	London Gatwick Airport
City:	London
Country:	United Kingdom
IATA Code:	LGW
ICAO Code:	EGKK
Coordinates:	51°8′53″N, 0°11′25″W