£325 Cheap Flights from Seoul (ICN) to Washington (IAD)

To find a cheap flight from Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.

The best airline to fly with from Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.) will differ from traveller to traveller. If you like to fly early, Korean Air offers early morning flights. If price is the most important factor, Air Premia typically offers the lowest fares. Air Canada offers the most daily flights from Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.), which is brilliant if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.

You'll typically find the most flights from Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.) on a Monday, with around 37 flights available. This gives you plenty of options for your travel plans. Major airlines on this route include Delta Air Lines, Korean Air, and Asiana Airlines. Flight schedules are consistent throughout the week.

The most popular departure times for flights from Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.) are in the evening, from 6pm to 9pm. Approximately 39% of passengers prefer this time window. Many major carriers, including Delta Air Lines, Air Canada and United Airlines, offer flights during this window. This timing works well because you can finish your day in Seoul before your flight and arrive in Washington, DC, ready to start your day.

It's easy to earn miles on a Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.

*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.

If you booked your Seoul (ICN-Incheon Intl.) to Washington, DC (IAD-Washington Dulles Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.