Q: What is the typical price of a round-trip flight between Washington, D.C. and Incheon Intl Airport?

Prices are currently low for flights on this route. Typical prices usually range from $1,617 to $2,648. The lowest price recently found on this route was $1,066.

Question 1

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

Accepted Answer

Turkish Airlines is the most popular carrier operating from Washington, D.C. to Incheon Intl

Question 2

How far in advance should I book a flight to Incheon Intl Airport?

Accepted Answer

You are more likely to see cheaper flights to Incheon Intl Airport from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,751 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. for as low as $1,354 on momondo.

Question 3

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

Accepted Answer

2 flights are operational daily from Washington, D.C. to Incheon Intl Airport as of December 2025. The most popular departure time for this route is 11:00AM, with 100% of flights per day taking off at noon.

Question 4

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

Accepted Answer

In the evening is the cheapest time of day to fly from Washington, D.C. 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 in the afternoon when prices are $1,655 on average. Flights to Incheon Intl Airport from Washington, D.C. in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

Question 5

Can stopping save me money on Washington, D.C. to Incheon Intl Airport flights?

Accepted Answer

You could potentially save up to 8% on your flight if you consider stops on a Washington, D.C. to Incheon Intl Airport flight.

Question 6

Which layover airport offers the lowest fares from Washington, D.C. to Incheon Intl Airport?

Accepted Answer

Flights via Beijing (PEK) offer the lowest average round-trip price of $683.

Question 7

What is the typical price of a round-trip flight between Washington, D.C. and Incheon Intl Airport?

Accepted Answer

Prices are currently low for flights on this route.Typical prices usually range from $1,617 to $2,648.
The lowest price recently found on this route was $1,066.

Question 8

What is the cheapest Washington, D.C. to Incheon Intl flight route?

Accepted Answer

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

Question 9

What airlines fly to Incheon Intl Airport?

Accepted Answer

Korean Air, Delta and Air Canada are the top three most popular airlines that fly to Incheon Intl Airport from Washington, D.C. according to our data. Korean Air is the first choice among our users, with 48% 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.

Question 10

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

Accepted Answer

The number of flights available between Washington, D.C. and Incheon Intl Airport is 14 per week as of December 2025. The most frequent departure day is Mon, with 14% of weekly flights leaving on this day.

Question 11

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

Accepted Answer

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

Question 12

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

Accepted Answer

Historically, on average around 32% of flights between Washington, D.C. and Incheon have experienced a delay on any given week. The average delay length over the past 12 months has been 123 minutes.

Question 13

What is the cheapest month to fly to Incheon Intl Airport?

Accepted Answer

The cheapest month to fly to Incheon Intl Airport from Washington, D.C. is in January. Flight prices, which tend to average around $1,026, 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 January, then departing from Washington, D.C. during the month February is also very affordable. Most momondo users find prices during this month for around $1,149.

Question 14

Which layover airport has the shortest connection time from Washington, D.C. to Incheon Intl Airport?

Accepted Answer

Montreal (YUL) has the shortest average layover time for this route: 1h 08m.

Question 15

How long does it take to fly to Incheon Intl Airport?

Accepted Answer

On average, it takes 17h 52m to fly from Washington, D.C. to Incheon Intl Airport if you fly out of Washington, D.C. (the most popular airport in Washington, D.C.) and into Incheon Intl Airport (the most popular airport in Incheon Intl Airport). If you’re flying out of Baltimore and into Incheon Intl Airport, then the flight time is around 19h 30m.

Question 16

Which airport is the most popular layover for flights between Washington, D.C. and Incheon Intl Airport?

Accepted Answer

Toronto (YYZ) was the most common stop: 27% of momondo users choosing 1-stop flights on this route connected there.

Question 17

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

Accepted Answer

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

Question 18

What is the cheapest day to depart on your flight to Incheon Intl Airport?

Accepted Answer

The cheapest day to depart from Washington, D.C. to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,328. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,622. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

Question 19

Which layover airport has the shortest travel time from Washington, D.C. to Incheon Intl Airport?

Accepted Answer

Flights connecting via Honolulu (HNL) have the shortest average one-way travel time: 17h 25m.

Question 20

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

Accepted Answer

There are 4 cabin classes available to choose from on Washington, D.C. to Incheon Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Question 21

How have Washington, D.C. to Incheon Intl Airport flight prices changed over time?

Accepted Answer

As of December 2025, prices for Washington, D.C. to Incheon Intl Airport flights are approximately 68% cheaper when compared to flights at the same time last year.

Question 22

Which airline has the best punctuality record on Washington, D.C. to Incheon 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 32% of their flights experiencing any sort of delay.

Question 23

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

Accepted Answer

Prices for flights from Washington, D.C. to Incheon Intl Airport are refreshed on a daily basis.

Question 24

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

Accepted Answer

There are 8 operators available for flights from Washington, D.C. to Incheon Intl Airport as of December 2025.

Question 25

How old do you have to be to fly from Washington, D.C. to Incheon 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 Washington, D.C. to Incheon Intl Airport.

Question 26

What documentation or ID do you need to fly to Incheon Intl Airport?

Accepted Answer

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.

Best Price Found	$562
Fastest flight time	15h 10m
Direct flights	Every day

Airline	Rating	Free Cancellation	Price
United Airlines	PriceFrom $317	Free Cancellation	Rating 7.4 9,092 reviews	Search United Airlines flights
Delta	PriceFrom $397	Free Cancellation	Rating 7.9 8,008 reviews	Search Delta flights
Air China	PriceFrom $591	Free Cancellation	Rating 7.1 129 reviews	Search Air China flights
American Airlines	PriceFrom $716	Free Cancellation	Rating 7.2 11,049 reviews	Search American Airlines flights
Asiana Airlines	PriceFrom $759	Free Cancellation	Rating 8.2 493 reviews	Search Asiana Airlines flights
Turkish Airlines	PriceFrom $791	Free Cancellation	Rating 7.3 4,104 reviews	Search Turkish Airlines flights
Air Canada	PriceFrom $945	Free Cancellation	Rating 7.1 10,531 reviews	Search Air Canada flights
Korean Air	PriceFrom $1,059	Free Cancellation	Rating 8.4 1,186 reviews	Search Korean Air flights

Cheap flights from Washington, D.C. to Seoul from $366

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. to Seoul departing on 3/1. 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 Washington, D.C. to Seoul

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

United Airlines flights from Washington, D.C. to Incheon Intl Airport

Our best United Airlines deals on Washington, D.C. to Incheon Intl Airport flight tickets

Delta flights from Washington, D.C. to Incheon Intl Airport

Our best Delta deals on Washington, D.C. to Incheon Intl Airport flight tickets

momondo Fare Finder

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

See travel insights to Seoul from

How to get the cheapest flight ticket from Washington, D.C. to Incheon Intl Airport