฿21,840 Cheap Flights from Seoul (ICN) to Washington (IAD)

View ฿21,840 flight on Wed, 10 Sep 2025Opens in a new window

Popular airlines from Incheon Intl. Airport (ICN) to Washington Dulles International Airport (IAD)

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

Prices were available within the past 7 days and start at ฿21,840 for one-way flights and ฿25,260 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿25,260 Return, found 1 day ago
฿25,260
Return
found 1 day ago
Select American Airlines flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿25,260 found 1 day ago
United
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿30,350 Return, found 1 day ago
฿30,350
Return
found 1 day ago
Select United flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿30,350 found 1 day ago
United
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿31,940 Return, found 1 day ago
฿31,940
Return
found 1 day ago
Select United flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿31,940 found 1 day ago
American Airlines
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿32,925 Return, found 1 day ago
฿32,925
Return
found 1 day ago
Select American Airlines flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿32,925 found 1 day ago
Asiana Airlines
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿34,600 Return, found 1 day ago
฿34,600
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿34,600 found 1 day ago
Air Canada
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿36,315 Return, found 1 day ago
฿36,315
Return
found 1 day ago
Select Air Canada flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿36,315 found 1 day ago
Asiana Airlines
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿36,350 Return, found 1 day ago
฿36,350
Return
found 1 day ago
Select Asiana Airlines flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿36,350 found 1 day ago
United
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿37,265 Return, found 1 day ago
฿37,265
Return
found 1 day ago
Select United flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿37,265 found 1 day ago
United
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿38,855 Return, found 1 day ago
฿38,855
Return
found 1 day ago
Select United flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿38,855 found 1 day ago
Ethiopian Airlines
Thu, 18 Sep - Thu, 2 Oct
ICN
Seoul
IAD
Washington
฿40,700 Return, found 1 day ago
฿40,700
Return
found 1 day ago
Select Ethiopian Airlines flight, departing Thu, 18 Sep from Seoul to Washington, returning Thu, 2 Oct, priced at ฿40,700 found 1 day ago

Find the cheapest month to fly from Seoul (ICN) to Washington (IAD)

September is typically the cheapest month to fly

From ฿18,782 - ฿49,371 per traveller.

Graph displaying average flight prices per month

Flight from Seoul to Washington route information
Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, American Airlines, Asiana Airlines, Delta, Emirates, Ethiopian Airlines, Etihad Airways, KLM, Korean Air, Lufthansa, Qatar Airways, Turkish Airlines, United
Return price
฿25,260
Distance
11108 km
Average flight time
14 hours 50 mins

Perfect flights from Seoul to Washington

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seoul to Washington. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Incheon Intl. to Washington Dulles Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿21,840 and roundtrip prices from ฿25,260. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Washington Dulles Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Washington.

Frequently asked questions

How much is a flight from Seoul–Incheon Intl. Airport to Dulles Intl. Airport?
Start packing your suitcase, because round-trip journeys between Seoul–Incheon Intl. Airport and Washington Dulles Intl. Airport (IAD) start from ฿25,260. That's based on fares listed within the last 7 days on Expedia for flights departing within the next year. Prices can move quickly, so book now to nab the best deal. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Incheon Airport to Washington Dulles Intl. Airport (IAD)?
Every air carrier has its own terms and conditions. If you do decide to cancel, follow the instructions on our Customer Service Portal.
How do I find cheap flights from Seoul–Incheon Intl. Airport to Dulles Intl. Airport that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for Seoul–Incheon Intl. Airport to Dulles Intl. Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Incheon Intl. Airport (ICN) to IAD?
With a flight distance of 11,200 kilometres from Seoul–Incheon Intl. Airport (ICN) to IAD (IAD), this is a long flight. Make sure you keep well hydrated and move your legs every so often.
Which airlines fly direct from Incheon Airport to Washington Dulles Intl. Airport (IAD)?
Korean Air (KE) will take you from Incheon Airport to Washington Dulles Intl. Airport (IAD) safely and reliably. Take your pick of 30 direct flights every month on this route.
Are ICN to Dulles Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute planners can sometimes nab a bargain, with some of the cheapest airfares from Seoul–Incheon Intl. Airport to Washington Dulles Intl. Airport (IAD) showing up a few weeks before the departure date. If you'd rather plan ahead of time, Expedia compares and updates all the best flight deals continually — as early as a year in advance in some cases. It does depend on the carrier though, as not all airlines release prices that far in advance.

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