Question 1

What is the cheapest South Korea to Washington, D.C. Dulles Intl flight route?

Accepted Answer

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best South Korea - Washington, D.C. Dulles Intl flight prices

Question 2

What cabin class options are available on South Korea to Washington, D.C. Dulles Intl flights?

Accepted Answer

There are 4 cabin classes available to choose from on South Korea 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.

Question 3

How many flights depart from South Korea to Washington, D.C. Dulles Intl Airport on average per day?

Accepted Answer

The number of flights available between South Korea and Washington, D.C. Dulles Intl Airport is 2 per day as of December 2025. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

Question 4

What airlines fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Korean Air, United Airlines and Delta are the top three most popular airlines that fly to Washington, D.C. Dulles Intl Airport from South Korea according to our data. Korean Air is the first choice among our users, with 51% 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.

Question 5

Which airline has the best punctuality record on South Korea to Washington, D.C. flights?

Accepted Answer

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

Question 6

What is the cheapest airline that flies from South Korea to Washington, D.C. Dulles Intl?

Accepted Answer

Air Canada is the most popular carrier operating from South Korea to Washington, D.C. Dulles Intl

Question 7

How often are flights from South Korea to Washington, D.C. delayed?

Accepted Answer

Historically, on average around 19% of flights between South Korea and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

Question 8

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

In general, November is the cheapest month to fly from South Korea 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 $492. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $734.

Question 9

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Our data shows that Sunday 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 $1,392. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from South Korea to Washington, D.C. Dulles Intl Airport for around $1,648.

Question 10

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from South Korea when booking weeks ahead of your departure date. In general, you can expect to find flights to Washington, D.C. Dulles Intl Airport for around $1,259 when searching 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 South Korea for as low as $986 on momondo.

Question 11

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Flying to Washington, D.C. Dulles Intl Airport from South Korea 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 $1,537 on average. Flights to Washington, D.C. Dulles Intl Airport from South Korea in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

Question 12

What is the most punctual flight time for South Korea to Washington, D.C. flights?

Accepted Answer

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

Question 13

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Flight times from South Korea to Washington, D.C. Dulles Intl Airport vary, but if you’re flying out of Incheon and flying into Washington, D.C. Dulles Intl Airport (one of the most popular routes), then the duration is 13h 35m on average. Another popular route from South Korea to Washington, D.C. Dulles Intl Airport is flying from Seoul to Washington, D.C. Dulles Intl Airport, which will take roughly 21h. Keep in mind that layovers or delays could extend your travel time.

Question 14

How many flights depart from South Korea to Washington, D.C. Dulles Intl Airport on average per week?

Accepted Answer

As of December 2025, 14 flights take off from South Korea and land in Washington, D.C. Dulles 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.

Question 15

What day of the week experiences the fewest flight delays on this route?

Accepted Answer

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Question 16

When did momondo last update prices for flights from South Korea to Washington, D.C. Dulles Intl Airport?

Accepted Answer

Prices for flights from South Korea to Washington, D.C. Dulles Intl Airport refresh daily.

Question 17

How many operators does momondo search for flights from South Korea to Washington, D.C. Dulles Intl Airport?

Accepted Answer

As of December 2025, there are 5 operators available to choose from for flights from South Korea to Washington, D.C. Dulles Intl Airport.

Question 18

How old do you have to be to fly from South Korea to Washington, D.C. Dulles Intl Airport?

Accepted Answer

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 South Korea to Washington, D.C. Dulles Intl Airport.

Question 19

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

Accepted Answer

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.

Best Price Found	$1,056
Fastest flight time	13h 35m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $501	Free Cancellation	Rating 7.2 11,050 reviews	Search American Airlines flights
United Airlines	PriceFrom $512	Free Cancellation	Rating 7.4 9,099 reviews	Search United Airlines flights
Air Canada	PriceFrom $727	Free Cancellation	Rating 7.1 10,549 reviews	Search Air Canada flights
Korean Air	PriceFrom $1,208	Free Cancellation	Rating 8.4 1,185 reviews	Search Korean Air flights
Delta	PriceFrom $1,301	Free Cancellation	Rating 7.9 8,021 reviews	Search Delta flights

Cheap flights from South Korea to Washington, D.C. from $401

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from South Korea to Washington, D.C. departing on 2/7. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from South Korea to Washington, D.C.

Recent round-trip flight deals from South Korea to Washington, D.C.

Recent one-way flight deals from South Korea to Washington, D.C.

Recent last minute flight deals from South Korea to Washington, D.C.

Recent direct flight deals from South Korea to Washington, D.C.

American Airlines flights from South Korea to Washington, D.C. Dulles Intl Airport

Our best American Airlines deals on South Korea to Washington, D.C. Dulles Intl Airport flight tickets

Hawaiian Airlines flights from South Korea to Washington, D.C. Dulles Intl Airport

Our best Hawaiian Airlines deals on South Korea to Washington, D.C. Dulles Intl Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from South Korea to Washington, D.C. Dulles Intl Airport that are best for you.

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from South Korea to Washington, D.C. Dulles Intl Airport

What is the cheapest month to fly to Washington, D.C. Dulles Intl Airport?

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

What is the cheapest South Korea to Washington, D.C. Dulles Intl flight route?

Fly from Incheon Intl to Washington, D.C. Dulles Intl for the best South Korea - Washington, D.C. Dulles Intl flight prices

How far in advance should I book a flight to Washington, D.C. Dulles Intl Airport?

What cabin class options are available on South Korea to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on South Korea 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 South Korea to Washington, D.C. Dulles Intl?

Air Canada is the most popular carrier operating from South Korea to Washington, D.C. Dulles Intl

What airlines fly to Washington, D.C. Dulles Intl Airport?

How often are flights from South Korea to Washington, D.C. delayed?

Historically, on average around 19% of flights between South Korea and Washington, D.C. have experienced a delay on any given week. The average delay length over the past 12 months has been 131 minutes.

What is the most punctual flight time for South Korea to Washington, D.C. flights?

Generally, flights departing in the morning tend to experience fewer delays. Flights in the morning have, in the past, seen delays more frequently in comparison.

What day of the week experiences the fewest flight delays on this route?

Thursday is statistically the day of the week which experiences the fewest number of delays on this flight route. Friday has historically seen more delays on average compared to the rest of the week.

Which airline has the best punctuality record on South Korea to Washington, D.C. flights?

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 19% of their flights experiencing any sort of delay.

How many flights depart from South Korea to Washington, D.C. Dulles Intl Airport on average per day?

The number of flights available between South Korea and Washington, D.C. Dulles Intl Airport is 2 per day as of December 2025. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

How many flights depart from South Korea to Washington, D.C. Dulles Intl Airport on average per week?

As of December 2025, 14 flights take off from South Korea and land in Washington, D.C. Dulles 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.

How long does it take to fly to Washington, D.C. Dulles Intl Airport?

Cheap South Korea to Washington, D.C. Dulles Intl Airport flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from South Korea to Washington, D.C. Dulles Intl Airport

Best Price Found

Fastest flight time

Direct flights

When did momondo last update prices for flights from South Korea to Washington, D.C. Dulles Intl Airport?

How many operators does momondo search for flights from South Korea to Washington, D.C. Dulles Intl Airport?

How old do you have to be to fly from South Korea to Washington, D.C. Dulles Intl Airport?

What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

What is the most popular plane model from South Korea to Washington, D.C. Dulles Intl Airport?

Best airlines flying from South Korea to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from South Korea to Washington, D.C. Dulles Intl Airport with momondo

Traveling to a place near Washington, D.C.?

Why use momondo?

Why should I use momondo to find a flight deal from South Korea to Washington, D.C.?

Can I find flights from South Korea to Washington, D.C. with flexible booking policies on momondo?

How can momondo help me find flights from South Korea to Washington, D.C.?

I’m not ready to book a flight from South Korea to Washington, D.C. right now. Can momondo alert me if prices change?

An easier way to manage your Washington, D.C. Dulles Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington, D.C.

Popular cities in the United States

Popular flights according to clicks in the last 7 days on momondo