Air Miles Calculator

Distance between Washington D.C. (IAD) and Seoul (ICN)

Distance from Washington Dulles International Airport to Incheon International Airport is 6959 miles / 11199 kilometers / 6047 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 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).

Flight duration

Estimated flight time from Washington Dulles International Airport (IAD) to Incheon International Airport (ICN) is 13 hours 40 minutes.

Time difference and current local times

The time difference between Washington D.C. and Seoul is 14 hours. Seoul is 14 hours ahead of Washington D.C..

Time Difference

Washington D.C.
Seoul

Washington D.C.

 EST

Seoul

 KST

Airport information


A Washington Dulles International Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: IAD
ICAO Code: KIAD
Coordinates: 38°56′40″N, 77°27′20″W

B Incheon International Airport
City: Seoul
Country: South Korea Flag of South Korea
IATA Code: ICN
ICAO Code: RKSI
Coordinates: 37°27′36″N, 126°26′26″E

Map

Flight map from Washington D.C. to Seoul.

Frequent Flyer Miles Calculator

Washington D.C. (IAD) → Seoul (ICN).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
6959
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
6959

Round trip?