The flight distance from London Heathrow Airport to Chicago O'Hare International Airport is:

3,953 miles / 6 362 km

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Flight path from LHR to ORD

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Distance from LHR to ORD

The total distance from LHR to ORD is 3,953 miles.

This is equivalent to 6 362 kilometers or 3,435 nautical miles.

Your trip begins at London Heathrow Airport in London, United Kingdom.
It ends at Chicago O'Hare International Airport in Chicago, Illinois.

Your flight direction from LHR to ORD is Northwest (-62 degrees from North).

The distance calculator helps you figure out how far it is to fly from LHR to ORD. It does this by computing the straight line flying distance ("as the crow flies"). It uses the great circle formula to compute the total travel mileage.

London Heathrow Airport

IATA: LHR
ICAO: EGLL
City: London
Country: United Kingdom
Category: airports

Chicago O'Hare International Airport

IATA: ORD
ICAO: KORD
FAA: ORD
City: Chicago
State: Illinois
Zip code: 60666
Country: United States
Category: airports

Flight distance calculator

Travelmath provides an online flight distance calculator to get the distance between cities. You can also compare all types of locations including airports, cities, states, countries, or zip codes to find the distance between any two points. The database uses the latitude and longitude of each location to calculate distance using the great circle distance formula. The calculation is done using the Vincenty algorithm and the WGS84 ellipsoid model of the Earth, which is the same one used by most GPS receivers. This gives you the flying distance "as the crow flies." Find your flight distances quickly to estimate the number of frequent flyer miles you'll accumulate. Or ask how far is it between cities to solve your homework problems. You can lookup U.S. cities, or expand your search to get the world distance for international trips.