S$645 Cheap Flights from Seoul to Washington

View S$645 flight on Fri, 5 Sep, 2025Opens in a new window

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Cheap Flights from Seoul to Washington (ICN-IAD)

Prices were available within the past 7 days and start at S$645 for one-way flights and S$997 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 11 Sep - Wed, 17 Sep
ICN
Seoul
IAD
Washington
S$997 Return, just found
S$997
Return
just found
Select Air Canada flight, departing Thu, 11 Sep from Seoul to Washington, returning Wed, 17 Sep, priced at S$997 just found
Air Canada
Thu, 11 Sep - Wed, 17 Sep
ICN
Seoul
IAD
Washington
S$1,023 Return, just found
S$1,023
Return
just found
Select Air Canada flight, departing Thu, 11 Sep from Seoul to Washington, returning Wed, 17 Sep, priced at S$1,023 just found
Air Canada
Wed, 5 Nov - Tue, 11 Nov
ICN
Seoul
IAD
Washington
S$1,045 Return, found 3 days ago
S$1,045
Return
found 3 days ago
Select Air Canada flight, departing Wed, 5 Nov from Seoul to Washington, returning Tue, 11 Nov, priced at S$1,045 found 3 days ago
American Airlines
Wed, 29 Oct - Thu, 6 Nov
ICN
Seoul
IAD
Washington
S$1,259 Return, just found
S$1,259
Return
just found
Select American Airlines flight, departing Wed, 29 Oct from Seoul to Washington, returning Thu, 6 Nov, priced at S$1,259 just found
United
Wed, 29 Oct - Thu, 6 Nov
ICN
Seoul
IAD
Washington
S$1,308 Return, just found
S$1,308
Return
just found
Select United flight, departing Wed, 29 Oct from Seoul to Washington, returning Thu, 6 Nov, priced at S$1,308 just found
Air China
Thu, 6 Nov - Tue, 11 Nov
ICN
Seoul
IAD
Washington
S$1,533 Return, found 3 days ago
S$1,533
Return
found 3 days ago
Select Air China flight, departing Thu, 6 Nov from Seoul to Washington, returning Tue, 11 Nov, priced at S$1,533 found 3 days ago
Asiana Airlines
Wed, 5 Nov - Tue, 11 Nov
ICN
Seoul
IAD
Washington
S$1,689 Return, found 3 days ago
S$1,689
Return
found 3 days ago
Select Asiana Airlines flight, departing Wed, 5 Nov from Seoul to Washington, returning Tue, 11 Nov, priced at S$1,689 found 3 days ago
Delta
Wed, 5 Nov - Tue, 11 Nov
ICN
Seoul
IAD
Washington
S$1,692 Return, found 3 days ago
S$1,692
Return
found 3 days ago
Select Delta flight, departing Wed, 5 Nov from Seoul to Washington, returning Tue, 11 Nov, priced at S$1,692 found 3 days ago
Korean Air
Wed, 5 Nov - Tue, 11 Nov
ICN
Seoul
IAD
Washington
S$1,720 Return, found 3 days ago
S$1,720
Return
found 3 days ago
Select Korean Air flight, departing Wed, 5 Nov from Seoul to Washington, returning Tue, 11 Nov, priced at S$1,720 found 3 days ago
Ethiopian Airlines
Thu, 11 Sep - Wed, 17 Sep
ICN
Seoul
IAD
Washington
S$1,913 Return, just found
S$1,913
Return
just found
Select Ethiopian Airlines flight, departing Thu, 11 Sep from Seoul to Washington, returning Wed, 17 Sep, priced at S$1,913 just found
Seoul to Washington route information
Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, Air India, American Airlines, Delta, Emirates, Ethiopian Airlines, Etihad Airways, KLM, Korean Air, Lufthansa, Qatar Airways, Swiss International Air Lines, Turkish Airlines, United
Return price
S$996
Distance
11108 km

Perfect flights from Seoul to Washington

Your Journey from Seoul to Washington

Start your unforgettable journey with Expedia. Our broad selection of flights from Seoul to Washington caters to every travel need. Whether you're yearning for a romantic escape, a solo adventure, or a cultural immersion, we've got you covered.
 

Choosing Your Ideal Flight

With Expedia, you have access to a wide range of airlines, including American Airlines, United, Air Canada, WestJet, Air China, Ethiopian Airlines, Air India, Asiana Airlines, Delta, Emirates, Korean Air. Our selection of flights from Incheon Intl. to Washington Dulles Intl. caters to every traveler's requirements, ensuring your journey aligns with your schedule. With options from 20 airlines, you're bound to find the perfect flight.
 

Maximizing Value with Seoul to Washington Flights

Experience the joy of finding cheap flights from Incheon Intl. to Washington Dulles Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$645 and roundtrip prices from S$997*.
 

Pre-Flight Essentials

Ensure a smooth journey from Seoul to Washington with Expedia. From information about check-in times and in-flight amenities to guidance on baggage policies, we provide all the essentials to prepare you for your flight.
 

Experience the Vibrant Washington

Picture yourself stepping off the plane in Washington and immersing yourself in the unique atmosphere of Chantilly. From local markets to cultural festivals, each city offers its distinct charm. Make the most of your trip by exploring local attractions and indulging in the local cuisine. With Expedia, explore all this and more, tailored to your budget.
 

Added Convenience on Your Seoul to Washington Flight

Traveling with Expedia is more than just a flight. We offer details about in-flight amenities, baggage policies, and more to ensure a smooth and hassle-free journey. Choose from our variety of airlines and embark on a memorable journey from Seoul to Washington.
 

Beyond the Flight – Exploring Washington

With Expedia, your adventure extends beyond the flight. Explore Washington at your own pace by renting a car or booking a hotel. Discover hidden gems off the beaten path and create unforgettable memories.
 

Book Your Flight from Seoul to Washington with Confidence

Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support make your travel experience seamless and stress-free. Embark on your journey from Seoul to Washington with confidence. Book your travel arrangements with Expedia today.
 
*Note: Prices may vary based on availability and are subject to change.

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 S$997. 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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