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£452 Cheap Flights from Washington (IAD) to Seoul (ICN)

View £452 flight on Tue, 6 Apr 2027Opens in a new window

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

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

Prices were available within the past 7 days and start at £452 for one-way flights and £748 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Qatar Airways
Mon, 29 Mar - Fri, 9 Apr
IAD
Washington
ICN
Seoul
£748 Return, found 1 day ago
£748
Return
found 1 day ago
Select Qatar Airways flight, departing Mon, 29 Mar from Washington to Seoul, returning Fri, 9 Apr, priced at £748 found 1 day ago
Qatar Airways
Tue, 6 Apr - Tue, 13 Apr
IAD
Washington
ICN
Seoul
£750 Return, found 23 hours ago
£750
Return
found 23 hours ago
Select Qatar Airways flight, departing Tue, 6 Apr from Washington to Seoul, returning Tue, 13 Apr, priced at £750 found 23 hours ago
Air China
Fri, 11 Sept - Fri, 18 Sept
IAD
Washington
ICN
Seoul
£782 Return, found 5 days ago
£782
Return
found 5 days ago
Select Air China flight, departing Fri, 11 Sept from Washington to Seoul, returning Fri, 18 Sept, priced at £782 found 5 days ago
EVA Airways
Tue, 8 Sept - Fri, 11 Sept
IAD
Washington
ICN
Seoul
£815 Return, found 17 hours ago
£815
Return
found 17 hours ago
Select EVA Airways flight, departing Tue, 8 Sept from Washington to Seoul, returning Fri, 11 Sept, priced at £815 found 17 hours ago
Turkish Airlines
Thu, 3 Dec - Thu, 17 Dec
IAD
Washington
ICN
Seoul
£819 Return, found 16 hours ago
£819
Return
found 16 hours ago
Select Turkish Airlines flight, departing Thu, 3 Dec from Washington to Seoul, returning Thu, 17 Dec, priced at £819 found 16 hours ago
Korean Air
Tue, 8 Sept - Fri, 11 Sept
IAD
Washington
ICN
Seoul
£962 Return, found 17 hours ago
£962
Return
found 17 hours ago
Select Korean Air flight, departing Tue, 8 Sept from Washington to Seoul, returning Fri, 11 Sept, priced at £962 found 17 hours ago
Delta
Tue, 8 Sept - Fri, 11 Sept
IAD
Washington
ICN
Seoul
£965 Return, found 17 hours ago
£965
Return
found 17 hours ago
Select Delta flight, departing Tue, 8 Sept from Washington to Seoul, returning Fri, 11 Sept, priced at £965 found 17 hours ago
China Airlines
Tue, 24 Nov - Tue, 1 Dec
IAD
Washington
ICN
Seoul
£1,014 Return, found 16 hours ago
£1,014
Return
found 16 hours ago
Select China Airlines flight, departing Tue, 24 Nov from Washington to Seoul, returning Tue, 1 Dec, priced at £1,014 found 16 hours ago
Air Canada
Mon, 14 Sept - Mon, 21 Sept
IAD
Washington
ICN
Seoul
£1,016 Return, found 5 days ago
£1,016
Return
found 5 days ago
Select Air Canada flight, departing Mon, 14 Sept from Washington to Seoul, returning Mon, 21 Sept, priced at £1,016 found 5 days ago
Alaska Airlines
Thu, 15 Oct - Sat, 31 Oct
IAD
Washington
ICN
Seoul
£1,017 Return, found 15 hours ago
£1,017
Return
found 15 hours ago
Select Alaska Airlines flight, departing Thu, 15 Oct from Washington to Seoul, returning Sat, 31 Oct, priced at £1,017 found 15 hours ago

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

September is typically the cheapest month to fly

From £705 - £1,095 per traveller.

Frequently asked questions

How much does a flight from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) cost?
You can find one-way and return flights from IAD to ICN with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when IAD to ICN ticket fares go up or down.
What is the cheapest month to fly from Washington, DC (IAD) to Seoul (ICN)?
The cheapest months to fly from Washington, DC (IAD) to Seoul (ICN) are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.)?
There are 2 airlines offering direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.). Here are the carriers:
  • Korean Air operates 7 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) every week.
  • Air Premia operates 7 direct flights from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) every week.
How do I find cheap flights from Washington, DC (IAD) to Seoul (ICN)?
To find a cheap flight from Washington, DC (IAD) to Seoul (ICN), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best time to fly from Washington, DC (IAD) to Seoul (ICN)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
What is the earliest flight from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.)?
The earliest flight from Washington Dulles Intl. (IAD) to Incheon Intl. (ICN) typically departs around 1:15 AM. This service is operated by EVA Airways and is a seasonal offering, active in September and October. An early departure like this can be really convenient, allowing you to maximise your time at your destination. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
How long does it take to fly from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.)?
A non-stop flight from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) typically takes around 15 hours 30 minutes. This journey covers a distance of approximately 11,175 kilometers. If you opt for a flight with one stop, your travel time will be longer, usually around 20 hours 48 minutes. Flights with two or more stops generally take about 21 hours 48 minutes. Keep in mind that actual flight times can vary due to factors like wind patterns and air traffic, so it's always a good idea to allow for some flexibility in your travel plans.
Can you fly business or first class from Washington, DC (IAD) to Seoul (ICN)?
Select the "Business class" and "First class" filters when looking for Washington, DC (IAD) to Seoul (ICN) flights on Expedia. This is the easiest way to compare prices, routes and flight times for your trip.
How do I earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) flight with Expedia?
It's easy to earn miles on a Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seoul (ICN) from Washington, DC (IAD)?
If you're planning to travel to Seoul from Washington Dulles International Airport (IAD), you can fly directly into Incheon International Airport (ICN). Some flights may connect through major hubs like O'Hare International Airport (ORD), Pearson International Airport (YYZ), or San Francisco International Airport (SFO) before reaching Seoul. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) at the last minute?
Typically, booking a last minute flight from Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) flight and hotel package?
Securing a Washington, DC (IAD-Washington Dulles Intl.) to Seoul (ICN-Incheon Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Washington, DC (IAD) to Seoul (ICN)?
If you booked your Washington, DC (IAD) to Seoul (ICN) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Washington Dulles Intl.
Destination airport
Incheon Intl.
Airlines serving
Aeromexico, Air Canada, Air China, Air France, Alaska Airlines, American Airlines, China Airlines, Delta, EVA Airways, Emirates, Ethiopian Airlines, Etihad Airways, KLM, Korean Air, Lufthansa, Qatar Airways, Turkish Airlines, United, Virgin Atlantic
Return price
£748
Distance
11108 km
Average flight time
28 hours 22 mins

Book with confidence

Compare flights from Washington to Seoul easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Washington to Seoul. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Incheon Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Washington Dulles Intl. to Incheon Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Washington Dulles Intl. (IAD) to Incheon Intl. (ICN)

The easiest way to view the best deals on flights from Washington to Seoul today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Washington Dulles Intl. to Incheon Intl. start at just £748 and range up to £1,017.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Washington and Seoul
  • booking your flight during March, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Washington to Seoul flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Washington Dulles Intl. to Incheon Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

Compare flights from Washington to Seoul easily and book with confidence

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*Available to Expedia members.