฿21,385 Cheap Flights from Seoul (ICN) to Washington (IAD)

View ฿21,385 flight on Thu, 25 Dec 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 ฿21,385 for one-way flights and ฿15,650 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Hawaiian Airlines
Thu, 26 Feb - Sat, 14 Mar
ICN
Seoul
IAD
Washington
฿15,650 Return, found 3 days ago
฿15,650
Return
found 3 days ago
Select Hawaiian Airlines flight, departing Thu, 26 Feb from Seoul to Washington, returning Sat, 14 Mar, priced at ฿15,650 found 3 days ago
Alaska Airlines
Thu, 5 Feb - Wed, 25 Feb
ICN
Seoul
IAD
Washington
฿15,650 Return, found 3 days ago
฿15,650
Return
found 3 days ago
Select Alaska Airlines flight, departing Thu, 5 Feb from Seoul to Washington, returning Wed, 25 Feb, priced at ฿15,650 found 3 days ago
American Airlines
Tue, 3 Feb - Tue, 17 Feb
ICN
Seoul
IAD
Washington
฿15,790 Return, found 3 days ago
฿15,790
Return
found 3 days ago
Select American Airlines flight, departing Tue, 3 Feb from Seoul to Washington, returning Tue, 17 Feb, priced at ฿15,790 found 3 days ago
Air Canada
Sat, 15 Nov - Wed, 19 Nov
ICN
Seoul
IAD
Washington
฿15,990 Return, found 4 days ago
฿15,990
Return
found 4 days ago
Select Air Canada flight, departing Sat, 15 Nov from Seoul to Washington, returning Wed, 19 Nov, priced at ฿15,990 found 4 days ago
United
Fri, 26 Dec - Sat, 3 Jan
ICN
Seoul
IAD
Washington
฿16,045 Return, found 6 days ago
฿16,045
Return
found 6 days ago
Select United flight, departing Fri, 26 Dec from Seoul to Washington, returning Sat, 3 Jan, priced at ฿16,045 found 6 days ago
United
Thu, 26 Feb - Fri, 13 Mar
ICN
Seoul
IAD
Washington
฿16,260 Return, found 3 days ago
฿16,260
Return
found 3 days ago
Select United flight, departing Thu, 26 Feb from Seoul to Washington, returning Fri, 13 Mar, priced at ฿16,260 found 3 days ago
United
Thu, 20 Nov - Wed, 3 Dec
ICN
Seoul
IAD
Washington
฿16,555 Return, found 1 day ago
฿16,555
Return
found 1 day ago
Select United flight, departing Thu, 20 Nov from Seoul to Washington, returning Wed, 3 Dec, priced at ฿16,555 found 1 day ago
Asiana Airlines
Mon, 17 Nov - Thu, 19 Mar
ICN
Seoul
IAD
Washington
฿34,260 Return, found 4 days ago
฿34,260
Return
found 4 days ago
Select Asiana Airlines flight, departing Mon, 17 Nov from Seoul to Washington, returning Thu, 19 Mar, priced at ฿34,260 found 4 days ago
Delta
Mon, 17 Nov - Thu, 19 Mar
ICN
Seoul
IAD
Washington
฿42,270 Return, found 4 days ago
฿42,270
Return
found 4 days ago
Select Delta flight, departing Mon, 17 Nov from Seoul to Washington, returning Thu, 19 Mar, priced at ฿42,270 found 4 days ago
Ethiopian Airlines
Mon, 17 Nov - Wed, 26 Nov
ICN
Seoul
IAD
Washington
฿42,400 Return, found 4 days ago
฿42,400
Return
found 4 days ago
Select Ethiopian Airlines flight, departing Mon, 17 Nov from Seoul to Washington, returning Wed, 26 Nov, priced at ฿42,400 found 4 days ago

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

September is typically the cheapest month to fly

From ฿13,962 - ฿32,868 per traveller.
Flight from Seoul to Washington route information
Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Return price
฿15,650
Distance
11108 km
Average flight time
13 hours 35 mins

Perfect flights from Seoul to Washington

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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 ฿21,385 and roundtrip prices from ฿15,650. 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.

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 ฿15,650. 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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