$446 Find Cheap Flights from Washington Dulles Airport to Seoul Incheon Airport - Compare and Save

For Washington Dulles Airport to Seoul Incheon Airport, Wednesday is the cheapest day to fly on average and Saturday is the most expensive. Flying from Seoul Incheon Airport back to Washington Dulles Airport, the best deals are generally found on Friday, with Thursday being the most expensive.

The cheapest month for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is October, where tickets cost $1,277 (return) on average. On the other hand, the most expensive months are December and January, where the average cost of round-trip tickets is $2,176 and $1,717 respectively.

No, with an average price for the route of $1,157, prices are generally cheapest when you fly direct.

To get a below average price on the flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport, you should book around 4 weeks before departure, which saves you about 38% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 11 weeks before departure.

In the past 5 days, the cheapest round-trip tickets from Washington Dulles Airport to Seoul Incheon Airport were found on Qatar Airways ($952) and Air China ($960).

There are 4 airlines that fly nonstop from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport. They are: AIR PREMIA, Delta, Korean Air and United Airlines. The cheapest price of all airlines flying this route was found with Delta at $392 for a round-trip flight. On average, the best prices for this route can be found at AIR PREMIA.

Weekly flights between Washington, D.C. and Incheon historically see delays in approximately 23% of cases, with the average delay over the past year being 97 minutes.

Typically, flights leaving in the morning tend to face fewer delays, whereas flights in the early afternoon have historically encountered delays more often.

Statistically, Saturday is the day of the week with the fewest delays on this flight route, while Friday has typically experienced more delays than other days.

Based on our data, Korean Air have experienced the fewest delays on this route in the past 12 months, with only about 25% of their flights encountering any delays.

Istanbul (IST) is the top choice – 38% of KAYAK users who clicked on 1-stop flights from Washington Dulles Airport to Seoul Incheon Airport picked an itinerary connecting there.

Flights via Doha (DOH) offer the most affordable fares, with an average round-trip price of $969.

Consider flying via Vancouver (YVR) for the shortest journey. The average one-way travel time for flights connecting there is 18h 44m.

If you prefer a quick connection, Salt Lake City (SLC) often has the shortest layovers from Washington Dulles Airport to Seoul Incheon Airport, with an average of 1h 40m.

There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

Each day, there are between 1 and 2 nonstop flights that take off from Washington, D.C. Dulles Intl Airport and land in Incheon Intl Airport, with an average flight time of 15h 30m. The most common departure time is 1:00 pm and most flights take off in the afternoon. Each week, there are 11 flights. The most frequent day of departure is Monday, when 18% of all weekly flights depart. The fewest flights depart on a Tuesday.