S$788 Cheap Flights from Washington to Seoul

View S$788 flight on Fri, 2 Jan, 2026Opens in a new window

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

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Cheap Flights from Washington to Seoul (IAD-ICN)

Prices were available within the past 7 days and start at S$788 for one-way flights and S$1,458 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Thu, 2 Oct - Thu, 9 Oct
IAD
Washington
ICN
Seoul
S$1,458 Return, found 5 days ago
S$1,458
Return
found 5 days ago
Select Air Canada flight, departing Thu, 2 Oct from Washington to Seoul, returning Thu, 9 Oct, priced at S$1,458 found 5 days ago
Air Canada
Thu, 2 Oct - Thu, 9 Oct
IAD
Washington
ICN
Seoul
S$1,467 Return, found 5 days ago
S$1,467
Return
found 5 days ago
Select Air Canada flight, departing Thu, 2 Oct from Washington to Seoul, returning Thu, 9 Oct, priced at S$1,467 found 5 days ago
Air Canada
Fri, 20 Feb - Wed, 11 Mar
IAD
Washington
ICN
Seoul
S$1,568 Return, found 5 days ago
S$1,568
Return
found 5 days ago
Select Air Canada flight, departing Fri, 20 Feb from Washington to Seoul, returning Wed, 11 Mar, priced at S$1,568 found 5 days ago
Turkish Airlines
Fri, 20 Feb - Wed, 11 Mar
IAD
Washington
ICN
Seoul
S$1,651 Return, found 5 days ago
S$1,651
Return
found 5 days ago
Select Turkish Airlines flight, departing Fri, 20 Feb from Washington to Seoul, returning Wed, 11 Mar, priced at S$1,651 found 5 days ago
Alaska Airlines
Thu, 2 Oct - Thu, 9 Oct
IAD
Washington
ICN
Seoul
S$1,654 Return, found 5 days ago
S$1,654
Return
found 5 days ago
Select Alaska Airlines flight, departing Thu, 2 Oct from Washington to Seoul, returning Thu, 9 Oct, priced at S$1,654 found 5 days ago
Alaska Airlines
Mon, 22 Sep - Sun, 28 Sep
IAD
Washington
ICN
Seoul
S$1,731 Return, found 4 days ago
S$1,731
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 22 Sep from Washington to Seoul, returning Sun, 28 Sep, priced at S$1,731 found 4 days ago
Alaska Airlines
Fri, 20 Feb - Wed, 11 Mar
IAD
Washington
ICN
Seoul
S$1,758 Return, found 5 days ago
S$1,758
Return
found 5 days ago
Select Alaska Airlines flight, departing Fri, 20 Feb from Washington to Seoul, returning Wed, 11 Mar, priced at S$1,758 found 5 days ago
Alaska Airlines
Mon, 22 Sep - Sun, 28 Sep
IAD
Washington
ICN
Seoul
S$1,827 Return, found 4 days ago
S$1,827
Return
found 4 days ago
Select Alaska Airlines flight, departing Mon, 22 Sep from Washington to Seoul, returning Sun, 28 Sep, priced at S$1,827 found 4 days ago
Delta
Thu, 2 Oct - Thu, 9 Oct
IAD
Washington
ICN
Seoul
S$2,143 Return, found 5 days ago
S$2,143
Return
found 5 days ago
Select Delta flight, departing Thu, 2 Oct from Washington to Seoul, returning Thu, 9 Oct, priced at S$2,143 found 5 days ago
Korean Air
Thu, 2 Oct - Thu, 9 Oct
IAD
Washington
ICN
Seoul
S$2,145 Return, found 5 days ago
S$2,145
Return
found 5 days ago
Select Korean Air flight, departing Thu, 2 Oct from Washington to Seoul, returning Thu, 9 Oct, priced at S$2,145 found 5 days ago

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

March is typically the cheapest month to fly

From S$1,105 - S$1,933 per traveller.

Graph displaying average flight prices per month

Washington to Seoul route information
Origin airport
Washington Dulles Intl.
Destination airport
Incheon Intl.
Return price
S$1,458
Distance
11108 km
Average flight time
14 hours 10 mins

Perfect flights from Washington to Seoul

Your Journey from Washington to Seoul

Start your unforgettable journey with Expedia. Our broad selection of flights from Washington to Seoul 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 Air Canada, Alaska Airlines, WestJet, Air China, Etihad Airways, Turkish Airlines, Delta, Korean Air. Our selection of flights from Washington Dulles Intl. to Incheon 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 Washington to Seoul Flights

Experience the joy of finding cheap flights from Washington Dulles Intl. to Incheon Intl. that fit your budget. Keep an eye out for our special deals and discounts, and check our flexible one-way fares from S$788 and roundtrip prices from S$1,458*.
 

Pre-Flight Essentials

Ensure a smooth journey from Washington to Seoul 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 Seoul

Picture yourself stepping off the plane in Seoul 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 Washington to Seoul 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 Washington to Seoul.
 

Beyond the Flight – Exploring Seoul

With Expedia, your adventure extends beyond the flight. Explore Seoul 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 Washington to Seoul 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 Washington to Seoul 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 IAD to Seoul–Incheon Intl. Airport?
Based on fares advertised within the last 7 days on Expedia for flights departing within the next year, round-trip flights between Washington Dulles Intl. Airport (IAD) and Incheon Airport start from S$1,458. Make your booking today to secure the best price for your journey. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from Washington Dulles Intl. Airport (IAD) to Seoul–Incheon Intl. Airport?
We get that life can throw the odd curveball, so we've made it as simple as possible for you to cancel your flight online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from IAD to Incheon Intl. Airport (ICN) 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 Dulles Intl. Airport to Incheon Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Washington Dulles Intl. Airport (IAD) to ICN?
With around 11,200 kilometres separating IAD and Incheon Airport, your flight will be a long one. Pack wisely and make your journey more comfortable. Things like an eye mask and a good travel pillow can make all the difference.
Which airlines fly direct from Dulles Intl. Airport to Seoul–Incheon Intl. Airport?
A favourite with many travellers, Korean Air (KE) operates 30 flights every month from IAD to Incheon Airport. Pick the one that fits with your travel schedule and book your fare today.
Are IAD to Seoul–Incheon Intl. Airport flight tickets cheaper when they're purchased at the last minute?
Last-minute bookings from IAD to ICN can be hit-or-miss. You may be able to find a bargain, but then again, you could miss out entirely! If you'd prefer to start planning your trip ahead of time, Expedia compares flight deals up to 12 months in advance. Just bear in mind that not all airlines advertise their prices that far in advance. Our top tip? Check back often as prices are updated regularly.

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