Cheap flights from Washington, D.C. Dulles Intl Airport to Seoul from $415
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Dulles Intl Airport to Seoul departing on 8/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Air Canada flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
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Turkish Airlines flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Our best Turkish Airlines deals on Washington, D.C. Dulles Intl Airport to Incheon Intl Airport flight tickets
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How to get the cheapest flight ticket from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip
What is the typical price of a round-trip flight between Washington, D.C. Dulles Intl Airport and Incheon Intl Airport?
What is the cheapest month to fly to Incheon Intl Airport?
The cheapest month to fly to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport is in November. Flight prices, which tend to average around $1,472, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of November, then departing from Washington, D.C. Dulles Intl Airport during the month January is also very affordable. Most momondo users find prices during this month for around $1,512.
What is the cheapest day to depart on your flight to Incheon Intl Airport?
The cheapest day to depart from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,530. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,686. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.
What is the cheapest time of day to depart on your flight to Incheon Intl Airport?
In the evening is the cheapest time of day to fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport when you can find flight prices for as low as $1,169. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,734 on average. Flights to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Washington, D.C. Dulles Intl to Incheon Intl flight route?
Fly from Washington, D.C. Dulles Intl to Incheon Intl for the best Washington, D.C. Dulles Intl - Incheon Intl flight prices
How far in advance should I book a flight to Incheon Intl Airport?
You are more likely to see cheaper flights to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,782 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport for as low as $1,374 on momondo.
What cabin class options are available on Washington, D.C. Dulles Intl to Incheon Intl flights?
There are 4 cabin classes available to choose from on Washington, D.C. Dulles Intl to Incheon Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
What is the cheapest airline that flies from Washington, D.C. Dulles Intl to Incheon Intl?
Turkish Airlines and WestJet are the most popular carriers operating from Washington, D.C. Dulles Intl to Incheon Intl
What airlines fly to Incheon Intl Airport?
Korean Air, Air Canada and American Airlines are the top three most popular airlines that fly to Incheon Intl Airport from Washington, D.C. Dulles Intl Airport according to our data. Korean Air is the first choice among our users, with 56% of people opting to fly with this airline when traveling to Incheon Intl Airport. Keep in mind that there are 8 different airlines that fly to Incheon Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport on average per day?
2 flights are operational daily from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport as of July 2025. The most popular departure time for this route is 1:00PM, with 100% of flights per day taking off in the afternoon.
How many flights depart from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport on average per week?
As of July 2025, 14 flights take off from Washington, D.C. Dulles Intl Airport and land in Incheon Intl Airport each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.
When to book flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Cheap Washington, D.C. Dulles Intl Airport to Incheon Intl Airport (IAD to ICN) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
How far is Washington, D.C. Dulles Intl to Incheon Intl by plane?
Incheon Intl is 6939.0 mi away from Washington, D.C. Dulles Intl. Typically, this will take 17h 40m by plane in normal conditions.
When did momondo last update prices for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
Prices for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
As of July 2025, there are 8 operators available to choose from for flights from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport.
How old do you have to be to fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport.
What documentation or ID do you need to fly to Incheon Intl Airport?
The travel and health documents you'll need for your trip to Incheon Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Incheon Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
Based on momondo bookings for flights between Washington, D.C. Dulles Intl Airport and Incheon Intl Airport, the leading plane model is Boeing 777-300ER, making up 97.67% of the total bookings. Other popular models include Boeing 747 with 1.29%, Boeing 787-8 Dreamliner with 0.39%, and Boeing 777 with 0.26%.
What is the most popular airline from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport is Korean Air (49% of total bookings). The next most popular airlines are Air Canada (17%), American Airlines (13%), and Turkish Airlines (9%).
Best airlines flying from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Compare and see reviews for airlines that fly from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $367 | Free Cancellation | Rating 7.4 8,858 reviews | |||
| PriceFrom $591 | Free Cancellation | Rating 7.2 92 reviews | |||
| PriceFrom $759 | Free Cancellation | Rating 8.2 450 reviews | |||
| PriceFrom $801 | Free Cancellation | Rating 7.3 3,886 reviews | |||
| PriceFrom $865 | Free Cancellation | Rating 7.1 9,660 reviews | |||
| PriceFrom $876 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $1,545 | Free Cancellation | Rating 8.4 1,101 reviews | |||
| PriceFrom $1,575 | Free Cancellation | Rating 8.0 7,974 reviews |
Korean Air Flights From Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
Korean Air flight deals from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport start from $1,545 round-trip. Over the 7 Korean Air flights for this route in a normal week, average airfare is usually $1,858 round-trip - but some users have found much cheaper deals with momondo.
Delta Flights From Washington, D.C. Dulles Intl Airport to Incheon Intl Airport
$1,575 is the best Delta flight deal from Washington, D.C. Dulles Intl Airport to Incheon Intl Airport found on momondo over the last 72 hours. The average Delta ticket price found was closer to $2,118, however, with flight time and availability significantly affecting the price. Delta (8.0/10 from 7,973 user reviews) flies into Incheon Intl Airport from Washington, D.C. Dulles Intl Airport 7 times in an average week so prices can vary.
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Why should I use momondo to find a flight deal from Washington, D.C. to Seoul?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Seoul. momondo saves you time and could save you money on your trip.
Can I find flights from Washington, D.C. to Seoul with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Seoul from Washington, D.C. with this policy.
How can momondo help me find flights from Washington, D.C. to Seoul?
Once you have performed a search for Washington, D.C. to Seoul flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.
I’m not ready to book a flight from Washington, D.C. to Seoul right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Washington, D.C. to Seoul flights. All you need is a valid email address and we will do the rest; it is that quick and easy.