Red facade of Seoul Square with multiple international flags displayed. — flights from Washington to Seoul
DullesSeoul, South Korea

Flights from Dulles to Seoul

Nonstop flights from Dulles (IAD) to Seoul (ICN) take about 14h 28m (11,173 km). Air Premia flies it. Lowest fare seen: $371 one-way, nonstop (22 Oct 2026).

All flights from Dulles →All flights to Seoul →

Photo of Seoul: Henry Acevedo on Pexels.

When you land in Seoul

The airport transfer and the few things worth sorting before you fly.

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Airlines flying Dulles to Seoul

Carriers on IAD–ICN according to our route data and nonstop fares seen as of 22 Oct 2026. Not a complete list.

✈ Air Premianonstop fare seen

Best time to fly to Seoul

Based on weather and travel conditions in South Korea

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.

Peak season: April – June, September – November

More for this trip

Frequently asked questions — Dulles to Seoul flights

How long is the flight from Dulles to Seoul?
A nonstop flight from Dulles (IAD) to Seoul (ICN) takes about 14h 28m, covering 11,173 km. That is an estimate from the distance — actual time varies with the airline, aircraft and winds, and connecting itineraries take longer.
How far is Dulles from Seoul by air?
The great-circle distance between Washington Dulles International Airport and Incheon International Airport is 11,173 km (6,943 miles), a ultra long-haul route.
Which airlines fly from Dulles to Seoul?
Airlines with flights or nonstop fares on the IAD–ICN route include Air Premia. This is not a complete list — schedules change by season, so check the current options before booking.
How much does a flight from Dulles to Seoul cost?
The lowest one-way fare seen recently on IAD–ICN was $371 USD with Air Premia (nonstop), departing 11 Nov 2026, found in fare searches as of 22 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
Do I need a visa to travel from Dulles to South Korea?
It depends on your passport. Some nationalities can enter South Korea visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Seoul?
Spring and autumn offer mild weather and stunning scenery. Summer (July–August) is hot and rainy; winter is bitterly cold but perfect for ski resorts like Gangwon.

Sources: fares from Travelpayouts flight-search data, seen 22 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

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