S$858 Cheap Flights from Seoul to Washington

View S$858 flight on Tue, 2 Sep, 2025Opens in a new window

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

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 40% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Seoul to Washington (ICN-IAD)

Prices were available within the past 7 days and start at S$858 for one-way flights and S$1,339 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Asiana Airlines
Thu, 6 Nov - Sun, 9 Nov
ICN
Seoul
IAD
Washington
S$1,339 Return, found 2 days ago
S$1,339
Return
found 2 days ago
Select Asiana Airlines flight, departing Thu, 6 Nov from Seoul to Washington, returning Sun, 9 Nov, priced at S$1,339 found 2 days ago
Asiana Airlines
Tue, 30 Dec - Thu, 19 Feb
ICN
Seoul
IAD
Washington
S$1,395 Return, found 4 days ago
S$1,395
Return
found 4 days ago
Select Asiana Airlines flight, departing Tue, 30 Dec from Seoul to Washington, returning Thu, 19 Feb, priced at S$1,395 found 4 days ago
Asiana Airlines
Tue, 30 Dec - Thu, 19 Feb
ICN
Seoul
IAD
Washington
S$1,412 Return, found 4 days ago
S$1,412
Return
found 4 days ago
Select Asiana Airlines flight, departing Tue, 30 Dec from Seoul to Washington, returning Thu, 19 Feb, priced at S$1,412 found 4 days ago
Asiana Airlines
Sat, 1 Nov - Fri, 7 Nov
ICN
Seoul
IAD
Washington
S$1,417 Return, found 1 day ago
S$1,417
Return
found 1 day ago
Select Asiana Airlines flight, departing Sat, 1 Nov from Seoul to Washington, returning Fri, 7 Nov, priced at S$1,417 found 1 day ago
United
Sat, 1 Nov - Fri, 7 Nov
ICN
Seoul
IAD
Washington
S$1,427 Return, found 1 day ago
S$1,427
Return
found 1 day ago
Select United flight, departing Sat, 1 Nov from Seoul to Washington, returning Fri, 7 Nov, priced at S$1,427 found 1 day ago
Asiana Airlines
Sat, 1 Nov - Fri, 7 Nov
ICN
Seoul
IAD
Washington
S$1,480 Return, found 1 day ago
S$1,480
Return
found 1 day ago
Select Asiana Airlines flight, departing Sat, 1 Nov from Seoul to Washington, returning Fri, 7 Nov, priced at S$1,480 found 1 day ago
Asiana Airlines
Tue, 30 Dec - Thu, 19 Feb
ICN
Seoul
IAD
Washington
S$1,489 Return, found 4 days ago
S$1,489
Return
found 4 days ago
Select Asiana Airlines flight, departing Tue, 30 Dec from Seoul to Washington, returning Thu, 19 Feb, priced at S$1,489 found 4 days ago
Delta
Thu, 6 Nov - Sun, 9 Nov
ICN
Seoul
IAD
Washington
S$1,679 Return, found 2 days ago
S$1,679
Return
found 2 days ago
Select Delta flight, departing Thu, 6 Nov from Seoul to Washington, returning Sun, 9 Nov, priced at S$1,679 found 2 days ago
Korean Air
Thu, 6 Nov - Sun, 9 Nov
ICN
Seoul
IAD
Washington
S$1,738 Return, found 2 days ago
S$1,738
Return
found 2 days ago
Select Korean Air flight, departing Thu, 6 Nov from Seoul to Washington, returning Sun, 9 Nov, priced at S$1,738 found 2 days ago
Ethiopian Airlines
Sat, 1 Nov - Fri, 7 Nov
ICN
Seoul
IAD
Washington
S$1,922 Return, found 1 day ago
S$1,922
Return
found 1 day ago
Select Ethiopian Airlines flight, departing Sat, 1 Nov from Seoul to Washington, returning Fri, 7 Nov, priced at S$1,922 found 1 day ago

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

March is typically the cheapest month to fly

From S$876 - S$1,520 per traveller.

Graph displaying average flight prices per month

Seoul to Washington route information
Origin airport
Incheon Intl.
Destination airport
Washington Dulles Intl.
Return price
S$1,338
Distance
11108 km
Average flight time
14 hours 50 mins

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 Asiana Airlines, Air Canada, Ethiopian Airlines, Air India, Japan Airlines, WestJet, United, Delta, 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$858 and roundtrip prices from S$1,339*.
 

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 . 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$1,339. 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.

Explore a world of travel with Expedia

Seoul Airports

Seoul

*Available to Expedia members.