Cheap flights from Seoul to District of Columbia from $640

In general, September is the cheapest month to fly from Seoul to District of Columbia. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $275. If you don’t want to visit District of Columbia in September, then you should wait until November to fly from Seoul, when ticket prices are also cheap, with an average price of $345.

The cheapest day to depart on your flight to District of Columbia is on a Friday when prices can be found for as low as $1,258. This is often the case because there is less demand to fly during this day of the week. On the other hand, Thursday is the most expensive day to depart from Seoul because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,811.

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Seoul - District of Columbia flight prices

You are more likely to see cheaper flights to District of Columbia from Seoul when booking weeks ahead of your departure date. In general, you can expect to find flights to District of Columbia for around $1,337 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to District of Columbia from Seoul for as low as $844 on momondo.

There are 3 cabin classes available to choose from on Seoul to District of Columbia flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 25% on your flight if you consider stops on a Seoul to District of Columbia flight.

EVA Air, Japan Airlines, and Alaska Airlines are the most popular carriers operating from Seoul to District of Columbia

United Airlines, Korean Air and Delta are the top three most popular airlines that fly to District of Columbia from Seoul according to our data. United Airlines is the first choice among our users, with 31% of people opting to fly with this airline when traveling to District of Columbia. Keep in mind that there are 5 different airlines that fly to District of Columbia on a routine basis, so you have a few additional options to choose from.

The number of flights available between Seoul and District of Columbia is 2 per day as of June 2026. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

18 flights are operational weekly from Seoul to District of Columbia as of June 2026. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.