How far is Seoul from Chicago?
There are several ways to calculate distances between Chicago and Seoul. Here are two common methods:Vincenty's formula (applied above)
- 6552.201 miles
- 10544.746 kilometers
- 5693.707 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
- 6537.053 miles
- 10520.366 kilometers
- 5680.543 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 Incheon International Airport (ICN) is 12 hours 54 minutes.
Time difference and current local times
The time difference between Chicago and Seoul is 15 hours. Seoul is 15 hours ahead of Chicago.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 801 kg (1 767 pounds).
Chicago to Seoul flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Seoul (ICN).