Seoul to Dulles (ICN–IAD) — Airlines, Schedules & Connections
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No nonstop flights on this route. connecting options below.
ICN–IAD is served by 3 airlines with nonstop service. Korean Air, Aerea and APZ lead the route. The flight covers 6,943 miles in approximately 13h 5m. Beyond nonstop, 44 hubs offer 1-stop connections.
Airline Landscape
| Airline | Freq/wk | Aircraft | Duration | Dep OTP | Alliance | Codeshares |
|---|---|---|---|---|---|---|
| KE Korean Air | 7 | 77W | 13h53 | – | SkyTeam | – |
| YP Aerea | 4 | 789 | 13h50 | – | – | – |
| APZ APZ | 1 | 789 | 13h05 | – | – | – |
Weekly Schedule Pattern
Connection Landscape
Travel Essentials
ICN: KST · IAD: EDT
When it's 6:00 PM in Seoul, it's 5:00 AM in Dulles.
South Korean passport holders enter the United States under the Visa Waiver Program (VWP) for up to 90 days for tourism or business. You must obtain an approved ESTA (Electronic System for Travel Authorization) at esta.cbp.dhs.gov before travel. The ESTA costs $21, is processed within 72 hours (often minutes), and is valid for 2 years or until your passport expires, whichever comes first. Passport must be a biometric e-passport.
At US immigration, you clear CBP (Customs and Border Protection) where an officer reviews your ESTA, asks about your trip purpose, takes fingerprints and a photo, and determines your allowed stay (up to 90 days). Have your return ticket, hotel booking, and a general idea of your itinerary ready to answer questions. The 90-day VWP stay cannot be extended, and overstaying voids your ESTA and future VWP eligibility. For stays beyond 90 days or work purposes, apply for a visa at the US Embassy in Seoul.
Direct flights from Seoul Incheon to multiple US cities run 10 to 14 hours: Los Angeles (LAX) 11 hours, San Francisco (SFO) 11 hours 30 minutes, New York JFK 14 hours, Seattle (SEA) 10 hours, Dallas (DFW) 13 hours, and Atlanta (ATL) 14 hours. Korean Air, Asiana, Delta, United, and American all operate transpacific routes. The US uses the US dollar. No mandatory vaccinations. Global Entry ($100, valid 5 years) includes ESTA and provides expedited entry through automated kiosks at major US airports, a strong investment for frequent visitors.
AREX (Airport Railroad Express) runs two services from Seoul Station: the Direct Train (43 min, ₩11,000, reserved seats) and the All-Stop train (66 min, ₩4,550, unreserved). Both trains serve T1 first, then T2; confirm which terminal your airline uses before boarding.Limousine buses depart from major Seoul neighborhoods and hotels (₩16,000–18,000, 60–90 min depending on traffic). KAL and LIMOUSINE services are reliable. Taxis from central Seoul cost ₩65,000–80,000 and take 60–90 minutes. Deluxe (black) taxis are pricier but English-speaking drivers are more common.
Silver Line Metro runs from Washington Dulles Airport station to Metro Center in about 65 minutes (~$7). The route bypasses I-66 and I-495 congestion entirely. Washington Flyer coach also runs to Wiehle-Reston East station ($6, 15 min) for Metro connection.Taxis and ride-shares to downtown DC cost $55–80 and take 35–55 minutes depending on traffic. Car rental facilities are on-site. Dulles is 27 miles west of the Capitol; it is farther than either DCA or BWI from central DC.
Humid continental climate. Summers are hot and muggy (30–36°C) with frequent afternoon thunderstorms that cause delays June through August. Winters bring cold temperatures (−3 to 5°C) with snow and ice. The Virginia suburbs accumulate more snow than downtown DC, and ice storms are the primary disruption risk.
Dulles sits at higher elevation in Virginia's piedmont and sees more winter precipitation than DCA. Spring and fall are variable. Snowfall is possible into April. Thunderstorms begin from April through May.
ICN–IAD Quick Facts
Frequently Asked Questions
Flights from ICN to IAD
Incheon International Airport (ICN) and Washington Dulles International Airport (IAD) are connected by nonstop service from APZ, Korean Air and Aerea. With 12 weekly departures, this is a regularly served route.
ICN to IAD Flight Duration and Schedule
Nonstop flight time from ICN to IAD ranges from 13 hours 5 minutes to 13 hours 53 minutes. The route covers a distance of 6,943 miles (11,173 km). There are approximately 12 weekly flights outbound and 11 return, totaling 23 flights per week in both directions.
Connecting Options and Alternatives
44 one-stop connections are available, with the fastest taking approximately 10 hours via CGK. Two-stop connections are also available via intermediate hubs.