How far is Chicago, IL, from London?

The distance between London (London City Airport) and Chicago (Chicago O'Hare International Airport) is 3971 miles / 6391 kilometers / 3451 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)

• 3971.412 miles
• 6391.368 kilometers
• 3451.063 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

• 3960.375 miles
• 6373.606 kilometers
• 3441.472 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 City 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 City Airport (LCY) 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 998 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 City Airport (LCY) and Chicago O'Hare International Airport (ORD).

Airport information

Origin	London City Airport
City:	London
Country:	United Kingdom
IATA Code:	LCY
ICAO Code:	EGLC
Coordinates:	51°30′19″N, 0°3′19″E

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