Flight Time from Washington, D.C. to Seoul

A non-stop flight between Washington Dulles (IAD) and Seoul Incheon (ICN) typically takes approximately 14 hours 30 minutes eastbound, covering roughly 6,900 miles (11,100 km).

Westbound flights (Seoul to D.C.) are often slightly shorter — around 13 hours 30 minutes — thanks to prevailing westerly winds and the jet stream. Actual duration varies by season, routing, and weather; some carriers may route near the Arctic (polar route) while others take a more southerly Pacific track.

Major airlines operating this route include Korean Air, Asiana Airlines, and United Airlines. Most flights are operated with wide-body aircraft such as the Boeing 777 or 787 Dreamliner. If connecting, total travel time typically ranges from 17 to 22+ hours depending on layover length and hub (common connections: Tokyo, Detroit, Chicago, San Francisco).