฿19,210 Cheap Flights from Washington (IAD) to Seoul (ICN)

View ฿19,210 flight on Wed, 19 Nov 2025Opens in a new window

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

    notification illustration

    Be in the know

    Get alerts if flight prices drop or rise*
    deals illustration

    Book smarter

    Save up to 40% on select hotels after you book a flight*
    trophy illustration

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Washington (IAD) to Seoul (ICN)

Prices were available within the past 7 days and start at ฿19,210 for one-way flights and ฿34,185 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Turkish Airlines
Mon, 1 Dec - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿34,185 Return, found 1 day ago
฿34,185
Return
found 1 day ago
Select Turkish Airlines flight, departing Mon, 1 Dec from Washington to Seoul, returning Thu, 11 Dec, priced at ฿34,185 found 1 day ago
Turkish Airlines
Tue, 3 Mar - Tue, 10 Mar
IAD
Washington
ICN
Seoul
฿34,200 Return, found 3 days ago
฿34,200
Return
found 3 days ago
Select Turkish Airlines flight, departing Tue, 3 Mar from Washington to Seoul, returning Tue, 10 Mar, priced at ฿34,200 found 3 days ago
Air Canada
Sun, 30 Nov - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿45,870 Return, found 1 day ago
฿45,870
Return
found 1 day ago
Select Air Canada flight, departing Sun, 30 Nov from Washington to Seoul, returning Thu, 11 Dec, priced at ฿45,870 found 1 day ago
Air Canada
Sun, 30 Nov - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿47,340 Return, found 1 day ago
฿47,340
Return
found 1 day ago
Select Air Canada flight, departing Sun, 30 Nov from Washington to Seoul, returning Thu, 11 Dec, priced at ฿47,340 found 1 day ago
Lufthansa
Mon, 1 Dec - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿50,295 Return, found 1 day ago
฿50,295
Return
found 1 day ago
Select Lufthansa flight, departing Mon, 1 Dec from Washington to Seoul, returning Thu, 11 Dec, priced at ฿50,295 found 1 day ago
Lufthansa
Sun, 30 Nov - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿51,015 Return, found 1 day ago
฿51,015
Return
found 1 day ago
Select Lufthansa flight, departing Sun, 30 Nov from Washington to Seoul, returning Thu, 11 Dec, priced at ฿51,015 found 1 day ago
United
Mon, 1 Dec - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿54,640 Return, found 1 day ago
฿54,640
Return
found 1 day ago
Select United flight, departing Mon, 1 Dec from Washington to Seoul, returning Thu, 11 Dec, priced at ฿54,640 found 1 day ago
Air Canada
Mon, 1 Dec - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿54,885 Return, found 1 day ago
฿54,885
Return
found 1 day ago
Select Air Canada flight, departing Mon, 1 Dec from Washington to Seoul, returning Thu, 11 Dec, priced at ฿54,885 found 1 day ago
Alaska Airlines
Tue, 3 Mar - Tue, 10 Mar
IAD
Washington
ICN
Seoul
฿55,380 Return, found 3 days ago
฿55,380
Return
found 3 days ago
Select Alaska Airlines flight, departing Tue, 3 Mar from Washington to Seoul, returning Tue, 10 Mar, priced at ฿55,380 found 3 days ago
United
Sun, 30 Nov - Thu, 11 Dec
IAD
Washington
ICN
Seoul
฿56,280 Return, found 1 day ago
฿56,280
Return
found 1 day ago
Select United flight, departing Sun, 30 Nov from Washington to Seoul, returning Thu, 11 Dec, priced at ฿56,280 found 1 day ago

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

March is typically the cheapest month to fly

From ฿27,920 - ฿49,018 per traveller.
Flight from Washington to Seoul route information
Origin airport
Washington Dulles Intl.
Destination airport
Incheon Intl.
Return price
฿34,185
Distance
11108 km
Average flight time
14 hours 50 mins

Perfect flights from Washington to Seoul

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Washington to Seoul. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
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 Washington Dulles Intl. to Incheon Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿19,210 and roundtrip prices from ฿34,185. 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.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Incheon Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
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 Seoul.

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 ฿34,185. 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.

Explore a world of travel with Expedia

*Available to Expedia members.