Direct flights from Washington (IAD) to Seoul (ICN): 10 nonstop departures observed each week across 2 airlines. 93% of the last 15 operated flights arrived within 15 minutes of schedule. The median arrival is 4 minutes late. No cancellations were recorded across the 15 tracked flights. The nonstop covers 11,174 km, an estimated 14 hours 50 minutes in the air. Measured by Pro Flight Search from live flight boards at Washington and Seoul. Updated 23 October 2026 at 21:17 UTC.
Pro Flight Search records official board updates for nonstop IAD to ICN flights through the day: schedules, estimates, gate pushes and actual departures. The verdict above comes from operated flights, so it reflects what this route does rather than what the timetable promises.
Smooth skies ahead. The departure side at IAD is the weaker end, route health score 90/100. The airports section above carries the live status and delay window at both ends.
Morning or evening flight on IAD–ICN?
Operators schedule 2 departures from IAD. Earlier flights typically land before destination-airport delays accumulate later in the day; check the ICN delay card to confirm conditions when you'd arrive.
How long is the flight from IAD to ICN?
Great-circle distance is 11,174 km. With typical jet cruise speed plus taxi, climb and descent, expect roughly 819–988 min gate-to-gate on this route.
How often does IAD–ICN fly?
2 carriers operate this route, around 10 flights a week between them. Compare carrier days and times in the airline list above.