How far is Chicago, IL, from London?

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

Distance from London to Chicago

There are several ways to calculate the distance from London to Chicago. 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 London to Chicago?

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

What is the time difference between London and Chicago?

The time difference between London and Chicago is 6 hours. Chicago is 6 hours behind London.

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

On average, flying from London to Chicago 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 London to Chicago

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

Airport information

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

Destination	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