Calculations with different methods
- 6958.698 miles
- 11198.940 kilometers
- 6046.944 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
- 6943.509 miles
- 11174.495 kilometers
- 6033.745 nautical miles
The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).
Estimated flight time from Incheon International Airport (ICN) to Washington Dulles International Airport (IAD) is 13 hours 40 minutes.
Time difference and current local times
The time difference between Seoul and Washington D.C. is 14 hours. Washington D.C. is 14 hours behind Seoul.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 900 kg (1 983 pounds).
Seoul to Washington D.C. flight map.
Frequent Flyer Miles Calculator
Seoul (ICN) → Washington D.C. (IAD).