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)
- 6537.942 miles
- 10521.798 kilometers
- 5681.317 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
- 6522.795 miles
- 10497.421 kilometers
- 5668.154 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 Gimpo International Airport (GMP) is 12 hours 52 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 799 kg (1 762 pounds).
Chicago to Seoul flight map.
Frequent Flyer Miles Calculator
Chicago (ORD) → Seoul (GMP).