Distance between London (LHR) and Chicago, IL (ORD)
Distance from Heathrow Airport to O'Hare International Airport is 3953 miles / 6361 kilometers / 3435 nautical miles.
Calculations with different 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).
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
London
GMT
Chicago, IL
CST
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
Flight map from London to Chicago.
Frequent Flyer Miles Calculator
London (LHR) → Chicago (ORD).
Elite level bonus (%):
Booking class bonus (%):
Air miles:
3953
Elite level bonus:
0
Booking class bonus:
0
In total
Total frequent flyer miles:
3953
Round trip?