Cheap flights from South Korea to Washington, D.C. from $380

In general, October is the cheapest month to fly from South Korea to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $1,162. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of October, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,224.

Our data shows that Friday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,126. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from South Korea to Washington, D.C. Dulles Intl Airport for around $1,642.

Flying to Washington, D.C. Dulles Intl Airport from South Korea in the evening is the least expensive time of day to depart. momondo users have found prices as low as $1,258 when looking at flights departing in the evening. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,349 on average. Flights to Washington, D.C. Dulles Intl Airport from South Korea in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best South Korea - Washington, D.C. Dulles Intl flight prices

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,414 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from South Korea for as low as $989 on momondo.

There are 4 cabin classes available to choose from on South Korea to Washington, D.C. Dulles Intl Airport flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

United Airlines and STARLUX Airlines are the most popular carriers operating from South Korea to Washington, D.C. Dulles Intl

AIR PREMIA, Korean Air and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from South Korea according to our data. AIR PREMIA is the first choice among our users, with 49% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 4 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.

Historically, on average around 10% of flights between South Korea and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 82 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

According to our data, AIR PREMIA have had the least number of delays on this route over the last 12 months; with about 8% of their flights experiencing any sort of delay.

The number of flights available between South Korea and Washington, D.C. Dulles Intl Airport is 1 per day as of October 2026. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

As of October 2026, 8 flights take off from South Korea and land in Washington, D.C. Dulles Intl Airport each week. The most common flight departure day for this route is Wed, with 25% of weekly flights taking off on this day.