Cheap flights from Incheon Intl Airport to Washington, D.C. from $465
This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Washington, D.C. departing on 9/14. 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 Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Our best Air Canada deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
Delta flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Our best Delta deals on Incheon Intl Airport to Washington, D.C. Dulles Intl Airport flight tickets
See travel insights to Washington, D.C. from
How to get the cheapest flight ticket from Incheon Intl Airport to Washington, D.C. Dulles 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 cheapest month to fly to Washington, D.C. Dulles Intl Airport?
In general, February is the cheapest month to fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $875. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of February, then flying in April is also cheap. Prices for this month can be found on momondo for an average of $1,301.
What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Our data shows that Thursday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $1,463. When flying out on a Wednesday, the most expensive travel day of the week, you can expect to see flight prices from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport for around $1,594.
What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?
Flying to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $922 when looking at flights departing in the afternoon. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,509 on average. Flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.
What is the cheapest Incheon Intl to Washington, D.C. Dulles Intl flight route?
Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Incheon Intl - Washington, D.C. Dulles Intl flight prices
How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?
You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport when booking 23 weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,367 when searching 23 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport for as low as $1,016 on momondo.
What cabin class options are available on Incheon Intl to Washington, D.C. Dulles Intl flights?
There are 4 cabin classes available to choose from on Incheon Intl to Washington, D.C. Dulles 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 Incheon Intl to Washington, D.C. Dulles Intl?
Air Canada, WestJet, and EVA Air are the most popular carriers operating from Incheon Intl to Washington, D.C. Dulles Intl
What airlines fly to Washington, D.C. Dulles Intl Airport?
Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport according to our data. Korean Air is the first choice among our users, with 61% of people opting to fly with this airline when traveling to Washington, D.C. Dulles Intl Airport. Keep in mind that there are 5 different airlines that fly to Washington, D.C. Dulles Intl Airport on a routine basis, so you have a few additional options to choose from.
How many flights depart from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport on average per day?
As of June 2025, there are 2 flights per day flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport. The most common time of day flights depart is 10:00AM, with 100% of flights taking off at noon.
How many flights depart from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport on average per week?
14 flights are operational weekly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport as of June 2025. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.
When to book flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Cheap Incheon Intl Airport to Washington, D.C. Dulles Intl Airport (ICN to IAD) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
How far is Incheon Intl to Washington, D.C. Dulles Intl by plane?
Washington, D.C. Dulles Intl is 6939.0 mi away from Incheon Intl. By plane, this route typically takes 13h 30m.
When did momondo last update prices for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
Prices for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport were last updated today.
How many operators does momondo search for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
The number of operators available for flights from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport is 5 as of June 2025.
How old do you have to be to fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The necessary travel and health documents for your Washington, D.C. Dulles Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport is Boeing 777-300ER, representing 88.89% of all bookings. The subsequent popular models are Airbus A350-900 at 6.21%, Boeing 747-8 at 3.92%, and Airbus A380-800 at 0.65%.
What is the most popular airline from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport is Korean Air (58% of total bookings). The next most popular airlines are United Airlines (15%), Delta (14%), and Air Canada (8%).
Best airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Compare and see reviews for airlines that fly from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $688 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $726 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $965 | Free Cancellation | Rating 7.1 9,537 reviews | |||
| PriceFrom $1,239 | Free Cancellation | Rating 8.4 1,088 reviews | |||
| PriceFrom $1,313 | Free Cancellation | Rating 8.0 7,946 reviews |
Korean Air Flights From Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Korean Air is one of the most popular airlines flying from Incheon Intl Airport to Washington, D.C. Dulles Intl Airport, operating 7 flights/week on average for this route. A good Korean Air flight deal for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport starts from $1,239 round-trip, up to an average price of $1,494. Our users have rated Korean Air at 8.4/10.
Delta Flights From Incheon Intl Airport to Washington, D.C. Dulles Intl Airport
Delta is also a popular choice for this route. Delta flight deals for Incheon Intl Airport to Washington, D.C. Dulles Intl Airport start from as low as $1,313 round-trip, depending on your selected dates, with average Delta deals seen on momondo around $1,573. Delta operates 7 flights to Washington, D.C. Dulles Intl Airport from Incheon Intl Airport in an average week. Users have rated it 8.0/10 across 7,946 reviews.
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Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?
To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington, D.C. from Seoul.
Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?
Flights from Seoul to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.
How can momondo help me find flights from Seoul to Washington, D.C.?
Once you have performed a search for Seoul to Washington, D.C. 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 Seoul to Washington, D.C. right now. Can momondo alert me if prices change?
Of course. momondo tracks the price of Seoul to Washington, D.C. flights. All you need is a valid email address and we will do the rest; it is that quick and easy.