$552 Cheap American Airlines flights Seoul (ICN) to Washington (IAD)

Finding cheap one-way American Airlines flights from ICN to IAD from $552 on Expedia couldn’t be easier — just filter by “Price (lowest to highest).” Alternatively, check out our affordable return fares from $874 for your next getaway.**These prices were available on Expedia within the past 7 days, for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.

Browse for round-trip or one-way flights to Washington in January or February. You could find an affordable fare with American Airlines during these off-peak months.

Check for American Airlines flights from ICN to IAD about one month before you want to leave. The most affordable time to book an international flight is usually 18 to 29 days ahead of your departure date when you can save 17% versus booking four to five months in advance. Regardless of itinerary or ticket type, the best day to book international airfare is usually Sunday. Friday is often the most expensive. Passengers booking on a Sunday can save an average of 17% compared to those who book on a Friday.**Ideal booking window recommendation is based on average round-trip ticket prices for January through November for 2024. Best day of the week to book recommendation is based on average round-trip ticket prices for January through October 2024. All data sourced from ARC’s global airline sales database.

Click on our “Nonstop” filter when looking for direct American Airlines flights from ICN to IAD. You can also compare other carriers offering the same direct trip.

Browse American Airlines’s earliest flights from ICN to IAD by using the “Morning” and “Early Morning” filters. Not only will you get to where you’re going sooner, early departures also experience 20% fewer cancellations.**Most reliable time of the day recommendation is based on January through August 2024 flight status data sourced from OAG’s global flight data platform.

Washington Dulles Intl. Airport (IAD) is the main Washington hub for American Airlines flights from Incheon Intl. Airport (ICN).

In most cases, you can cancel or modify your flight, although there may be additional fees if you made your booking over 24 hours ago. Want to keep your options open? Make use of our “Changes included” and “No cancel fee” filters to find flights that won’t charge extra if you have to adjust your plans. To update your booking, head to “Trips,” select your flight and click on “Manage Booking” for further information.