Cheap flights from Incheon Intl Airport to Washington, D.C. from $468
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 8/27. 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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American Airlines flights from Incheon Intl Airport to Washington, D.C.
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Delta flights from Incheon Intl Airport to Washington, D.C.
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How to get the cheapest flight ticket from Incheon Intl Airport to Washington, D.C.
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.?
The month of May is, on average, the cheapest month to fly to Washington, D.C. from Incheon Intl Airport, with most prices found around $871. If you’re not able to fly to Washington, D.C. in May, then December is your next best option. Flight prices from Incheon Intl Airport to Washington, D.C. during December average around $899.
What is the cheapest day to depart on your flight to Washington, D.C.?
On average, the least expensive day to fly to Washington, D.C. from Incheon Intl Airport is on a Thursday. momondo users have found tickets for Thursday departures for as low as $1,463. However, this price may fluctuate depending on the airline, the season, and holidays. 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. for around $1,594.
What is the cheapest time of day to depart on your flight to Washington, D.C.?
In the afternoon is the cheapest time of day to fly from Incheon Intl Airport to Washington, D.C. when you can find flight prices for as low as $919. Flying to Washington, D.C. in the afternoon is an ideal time because this is during off-peak travel hours. Try not to purchase tickets in the morning because they tend to be around $1,505. Of course, these prices can vary depending on the time of year and what airport you fly to.
What is the cheapest Incheon Intl to Washington, D.C. flight route?
Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best Incheon Intl - Washington, D.C. flight prices
How far in advance should I book a flight to Washington, D.C.?
You are more likely to see cheaper flights to Washington, D.C. 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. for around $1,372 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. 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. flights?
There are 4 cabin classes available to choose from on Incheon Intl to Washington, D.C. flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.
Can stopping save me money on Incheon Intl Airport to Washington, D.C. flights?
You could potentially save up to 1% on your flight if you consider stops on a Incheon Intl Airport to Washington, D.C. flight.
How have Incheon Intl Airport to Washington, D.C. flight prices changed over time?
As of June 2025, prices for Incheon Intl Airport to Washington, D.C. flights are approximately 28% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Incheon Intl to Washington, D.C.?
Air Canada, Ethiopian Air, and EVA Air are the most popular carriers operating from Incheon Intl to Washington, D.C.
What airlines fly to Washington, D.C.?
Korean Air, Delta and United Airlines are the top three most popular airlines that fly to Washington, D.C. from Incheon 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 Washington, D.C.. Keep in mind that there are 5 different airlines that fly to Washington, D.C. 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. on average per day?
2 flights are operational daily from Incheon Intl Airport to Washington, D.C. as of June 2025. The most popular departure time for this route is 10:00AM, with 100% of flights per day taking off at noon.
How many flights depart from Incheon Intl Airport to Washington, D.C. on average per week?
The number of flights available between Incheon Intl Airport and Washington, D.C. is 14 per week as of June 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.
When to book flights from Incheon Intl Airport to Washington, D.C.
Cheap Incheon Intl Airport to Washington, D.C. (ICN to WAS) flight deals and tips
Find info about flight duration, direct flights, and airports for your flight from Incheon Intl Airport to Washington, D.C.
Best Price Found | $468 |
|---|---|
Fastest flight time | 16h 22m |
Direct flights | Every day |
Airports in Washington, D.C. | 3 airports |
How far is Incheon Intl to Washington, D.C. by plane?
The distance between Incheon Intl and Washington, D.C. is about 6949.0 mi. By plane, this route typically takes 16h 22m.
When did momondo last update prices for flights from Incheon Intl Airport to Washington, D.C.?
Prices for flights from Incheon Intl Airport to Washington, D.C. are refreshed on a daily basis.
How many operators does momondo search for flights from Incheon Intl Airport to Washington, D.C.?
As of June 2025, there are 5 operators available to choose from for flights from Incheon Intl Airport to Washington, D.C..
How old do you have to be to fly from Incheon Intl Airport to Washington, D.C.?
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..
What documentation or ID do you need to fly to Washington, D.C.?
The travel and health documents you'll need for your trip to Washington, D.C. 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 Washington, D.C.. 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 Incheon Intl Airport to Washington, D.C.?
Based on momondo bookings for flights between Incheon Intl Airport and Washington, D.C., the leading plane model is Boeing 777-300ER, making up 87.22% of the total bookings. Other popular models include Airbus A350-900 with 7.14%, Boeing 747-8 with 4.51%, and Airbus A380-800 with 0.75%.
What is the most popular airline from Incheon Intl Airport to Washington, D.C.?
momondo data reveals that the most frequently booked airline on the route from Incheon Intl Airport to Washington, D.C. is Korean Air, representing 34% of all bookings. The subsequent popular airlines are Air Canada at 30%, Delta at 15%, and United Airlines at 13%.
Best airlines flying from Incheon Intl Airport to Washington, D.C.
Compare and see reviews for airlines that fly from Incheon Intl Airport to Washington, D.C. with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $687 | Free Cancellation | Rating 7.2 10,000 reviews | |||
| PriceFrom $688 | Free Cancellation | Rating 7.1 9,553 reviews | |||
| PriceFrom $726 | Free Cancellation | Rating 7.4 8,801 reviews | |||
| PriceFrom $882 | Free Cancellation | Rating 8.0 7,963 reviews | |||
| PriceFrom $1,127 | Free Cancellation | Rating 8.4 1,090 reviews |
Korean Air Flights From Incheon Intl Airport to Washington, D.C.
Korean Air flies from Incheon Intl Airport to Washington, D.C. around 7 times per week, with 1,090 momondo users rating the airline 8.4/10. The cheapest Korean Air deal from Incheon Intl Airport to Washington, D.C. in the last 72 hours was $1,127 (round-trip), much lower than the average airfare cost of $1,447 for Korean Air flights on this route.
Delta Flights From Incheon Intl Airport to Washington, D.C.
Another popular option for Incheon Intl Airport to Washington, D.C. flights is Delta (8.0/10, 7,963 ratings). Delta flies from Incheon Intl Airport to Washington, D.C. around 7 times per week, with deals starting from $882 round-trip and rising to an average price of around $1,546.
Traveling to a place near Washington, D.C.?
Book flights to Washington, D.C. if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seoul to Washington, D.C.?
momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Seoul to Washington, D.C.. Millions of users trust and use momondo every year so you are in good hands.
Can I find flights from Seoul to Washington, D.C. with flexible booking policies on momondo?
Yes. momondo enables you to select and highlight flights to Washington, D.C. from Seoul with this policy.
How can momondo help me find flights from Seoul to Washington, D.C.?
momondo provides multiple filters to help you find the best flight to Washington, D.C. from Seoul. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.
I’m not ready to book a flight from Seoul to Washington, D.C. right now. Can momondo alert me if prices change?
Yes. momondo can track prices for Seoul to Washington, D.C. flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.