How far is London from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and London (London Gatwick Airport) is 3974 miles / 6395 kilometers / 3453 nautical miles.

Distance from Chicago to London

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

Vincenty's formula (applied above)

• 3973.659 miles
• 6394.984 kilometers
• 3453.015 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

• 3962.631 miles
• 6377.236 kilometers
• 3443.432 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 Chicago to London?

The estimated flight time from Chicago O'Hare International Airport to London Gatwick Airport is 8 hours and 1 minutes.

What is the time difference between Chicago and London?

The time difference between Chicago and London is 6 hours. London is 6 hours ahead of Chicago.

Flight carbon footprint between Chicago O'Hare International Airport (ORD) and London Gatwick Airport (LGW)

On average, flying from Chicago to London generates about 453 kg of CO2 per passenger, and 453 kilograms equals 999 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Chicago to London

See the map of the shortest flight path between Chicago O'Hare International Airport (ORD) and London Gatwick Airport (LGW).

Airport information

Origin	Chicago O'Hare International Airport
City:	Chicago, IL
Country:	United States
IATA Code:	ORD
ICAO Code:	KORD
Coordinates:	41°58′42″N, 87°54′17″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