IAD
Washington
United States
11,177 km
6,945 miles
ICN
Seoul
South Korea
Distance
11,177 km
6,945 mi / 6,035 nm
Est. Flight Time
14h
Ultra-long-haul route
Time Difference
+13h
America/New_York
Heading
341°
north northwest

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Airport Comparison

IAD ICN
Airport Name Washington Dulles International Airport Incheon International Airport
IATA Code IAD ICN
ICAO Code KIAD RKSI
City Washington Seoul
Country United States South Korea
Timezone America/New_York Asia/Seoul
Elevation 312 ft 23 ft
Coordinates 38.900000, -77.500000 37.470000, 126.450000

Washington (IAD) to Seoul (ICN) Flight Distance

The flight distance from Washington Dulles International Airport (IAD) in Washington, United States to Incheon International Airport (ICN) in Seoul, South Korea is 11,177 kilometers (6,945 miles / 6,035 nautical miles). The estimated flight time for this route is approximately 14h, flying north northwest at a heading of 341°.

This is an ultra-long-haul route, one of the longest in aviation. It requires wide-body aircraft with extended range capability such as the Airbus A350-900ULR or Boeing 777-200LR. Passengers should prepare for an extended flight with multiple meal services.

This is an international route connecting United States with South Korea. It is an intercontinental flight between North America and Asia. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.

Time zone information: When it's 10:56 in Washington, it's 23:56 in Seoul. With a 13-hour time difference, travelers should plan for significant jet lag. It typically takes one day per hour of time difference to fully adjust.

The return flight from Seoul (ICN) to Washington (IAD) follows a heading of 19° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.

For more information about these airports, visit the Washington Dulles International Airport (IAD) and Incheon International Airport (ICN) detail pages, or use our flight duration calculator to compare other routes.

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