How far is Athens from Chicago?
There are several ways to calculate distances between Chicago and Athens. Here are two common methods:Vincenty's formula (applied above)
- 607.391 miles
- 977.501 kilometers
- 527.809 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
- 608.053 miles
- 978.566 kilometers
- 528.383 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).
Estimated flight time from O'Hare International Airport (ORD) to Athens Ben Epps Airport (AHN) is 1 hour 39 minutes.
Time difference and current local times
The time difference between Chicago and Athens is 1 hour. Athens is 1 hour ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 114 kg (251 pounds).
Chicago to Athens flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Athens (AHN).