How far is London from Chicago, IL?

The distance between Chicago (Chicago O'Hare International Airport) and London (Luton Airport) is 3943 miles / 6346 kilometers / 3427 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)

• 3943.391 miles
• 6346.273 kilometers
• 3426.713 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

• 3932.421 miles
• 6328.618 kilometers
• 3417.180 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 Luton Airport is 7 hours and 57 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 Luton Airport (LTN)

On average, flying from Chicago to London generates about 449 kg of CO2 per passenger, and 449 kilograms equals 991 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 Luton Airport (LTN).

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	Luton Airport
City:	London
Country:	United Kingdom
IATA Code:	LTN
ICAO Code:	EGGW
Coordinates:	51°52′28″N, 0°22′5″W