Distance between London (LHR) and Chicago, IL (ORD)
Distance from London to Chicago (Heathrow Airport – O'Hare International Airport) is 3953 miles / 6361 kilometers / 3435 nautical miles.
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London - Chicago
How far is Chicago from London?
There are several ways to calculate distances between London and Chicago. Here are two common methods:
Vincenty's formula (applied above)- 3952.811 miles
- 6361.433 kilometers
- 3434.899 nautical miles
Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.
Haversine formula- 3941.829 miles
- 6343.759 kilometers
- 3425.356 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).
Flight duration
Estimated flight time from Heathrow Airport (LHR) to O'Hare International Airport (ORD) is 7 hours 59 minutes.
Time difference and current local times
The time difference between London and Chicago is 6 hours. Chicago is 6 hours behind London.
Time Difference
London
Chicago, IL
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 457 kg (1 007 pounds).
Airport information
| A | Heathrow Airport |
|---|---|
| City: | London |
| Country: | United Kingdom  |
| IATA Code: | LHR |
| ICAO Code: | EGLL |
| Coordinates: | 51°28′14″N, 0°27′42″W |
| B | 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 |
Map
London to Chicago flight map.
Frequent Flyer Miles Calculator
London (LHR) → Chicago (ORD).
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