How far is Chicago, IL, from London?

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

• 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 London to Chicago?

The estimated flight time from Luton Airport to Chicago O'Hare International Airport is 7 hours and 57 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 Luton Airport (LTN) and Chicago O'Hare International Airport (ORD)

On average, flying from London to Chicago 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 London to Chicago

See the map of the shortest flight path between Luton Airport (LTN) and Chicago O'Hare International Airport (ORD).

Airport information

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