Map of flight path from Chicago to Liège.
Shortest flight path between Chicago O'Hare International Airport (ORD) and Liège Airport (LGG).
How far is Liège from Chicago?
There are several ways to calculate distances between Chicago and Liège. Here are two common methods:Vincenty's formula (applied above)
- 4204.696 miles
- 6766.802 kilometers
- 3653.781 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
- 4193.040 miles
- 6748.044 kilometers
- 3643.652 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).
Time difference and current local times
The time difference between Chicago and Liège is 7 hours. Liège is 7 hours ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 482 kg (1 063 pounds).
Frequent Flyer Miles Calculator
Chicago (ORD) → Liège (LGG).