฿21,680 Cheap Flights from Seoul (ICN) to Washington (IAD)

View ฿21,680 flight on Fri, 6 Mar 2026Opens 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 ฿21,680 for one-way flights and ฿28,540 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

American Airlines
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿28,540 Return, found 2 days ago
฿28,540
Return
found 2 days ago
Select American Airlines flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿28,540 found 2 days ago
American Airlines
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿30,165 Return, found 2 days ago
฿30,165
Return
found 2 days ago
Select American Airlines flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿30,165 found 2 days ago
United
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿31,155 Return, found 2 days ago
฿31,155
Return
found 2 days ago
Select United flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿31,155 found 2 days ago
Asiana Airlines
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿31,935 Return, found 2 days ago
฿31,935
Return
found 2 days ago
Select Asiana Airlines flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿31,935 found 2 days ago
United
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿32,405 Return, found 2 days ago
฿32,405
Return
found 2 days ago
Select United flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿32,405 found 2 days ago
Air Canada
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿35,215 Return, found 2 days ago
฿35,215
Return
found 2 days ago
Select Air Canada flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿35,215 found 2 days ago
Air China
Fri, 6 Mar - Fri, 13 Mar
ICN
Seoul
IAD
Washington
฿37,110 Return, found 6 days ago
฿37,110
Return
found 6 days ago
Select Air China flight, departing Fri, 6 Mar from Seoul to Washington, returning Fri, 13 Mar, priced at ฿37,110 found 6 days ago
Delta
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿39,340 Return, found 2 days ago
฿39,340
Return
found 2 days ago
Select Delta flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿39,340 found 2 days ago
Asiana Airlines
Fri, 1 May - Mon, 4 May
ICN
Seoul
IAD
Washington
฿39,520 Return, found 2 days ago
฿39,520
Return
found 2 days ago
Select Asiana Airlines flight, departing Fri, 1 May from Seoul to Washington, returning Mon, 4 May, priced at ฿39,520 found 2 days ago
Korean Air
Fri, 1 May - Sun, 3 May
ICN
Seoul
IAD
Washington
฿42,920 Return, found 2 days ago
฿42,920
Return
found 2 days ago
Select Korean Air flight, departing Fri, 1 May from Seoul to Washington, returning Sun, 3 May, priced at ฿42,920 found 2 days ago

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

November is typically the cheapest month to fly

From ฿13,700 - ฿31,257 per traveller.

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 ฿28,540. 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.

Travel information

Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air France, American Airlines, Delta, Emirates, KLM, Korean Air, Lufthansa, Qatar Airways, Turkish Airlines
Return price
฿28,540
Distance
11108 km
Average flight time
13 hours 35 mins

Book with confidence

Perfect flights from Seoul to Washington

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Our flexible Incheon Intl. to Washington Dulles Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿21,680 and roundtrip prices from ฿28,540. 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.
 
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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.
Perfect flights from Seoul to Washington
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