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

Historically, on average around 23% 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 97 minutes.

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

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

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

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

Flights via Istanbul (IST) offer the lowest average round-trip price of $1,031.

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

Toronto (YYZ) has the shortest average layover time for this route: 1h 43m.

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

Toronto (YYZ) was the most common stop: 40% of momondo users choosing 1-stop flights on this route connected there.

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

According to our data, Korean Air have had the least number of delays on this route over the last 12 months; with about 25% of their flights experiencing any sort of delay.

What airlines fly to Incheon Intl Airport?

AIR PREMIA, Korean Air and Delta are the top three most popular airlines that fly to Incheon Intl Airport from Washington, D.C. according to our data. AIR PREMIA is the first choice among our users, with 54% 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.

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

Flights connecting via Toronto (YYZ) have the shortest average one-way travel time: 18h 33m.

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

On average, it takes 16h 27m 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 10m.

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

Delta, Air Canada, and Cathay Pacific are the most popular carriers operating from Washington, D.C. to Incheon Intl

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

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

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

There are 8 operators available for flights from Washington, D.C. to Incheon Intl Airport as of August 2026.

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

$416 Cheap Flights from Washington, D.C. to Incheon Intl Airport in 2026

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

1 flights are operational daily from Washington, D.C. to Incheon Intl Airport as of August 2026. The most popular departure time for this route is 1:00PM, with 100% of flights per day taking off in the afternoon.

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. to Seoul

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

9:25 pm - 5:18 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

32h 53m2 stops Newark Atlanta Hartsfield-Jackson

$950Multiple Airlines

Wed, Sep 23 - Wed, Sep 30

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

9:25 pm - 12:21 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 56m2 stops Newark Atlanta Hartsfield-Jackson

$953Multiple Airlines

Fri, Sep 11 - Wed, Oct 14

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Mon, Sep 21 - Mon, Oct 12

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Wed, Sep 16 - Mon, Oct 12

1:15 am - 6:45 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

28h 30m1 stop Taipei City Taiwan Taoyuan Intl

7:45 pm - 10:00 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 15m1 stop Taipei City Taiwan Taoyuan Intl

$987EVA Air

Mon, Sep 28 - Tue, Oct 6

1:15 am - 12:10 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

21h 55m1 stop Taipei City Taiwan Taoyuan Intl

7:45 pm - 10:00 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 15m1 stop Taipei City Taiwan Taoyuan Intl

$991EVA Air

Mon, Sep 21 - Tue, Oct 6

5:00 am - 3:45 pmDCA Washington, D.C. Reagan-National-ICN Incheon Intl

21h 45m1 stop Dallas/Fort Worth

5:50 pm - 10:58 pmICN Incheon Intl-DCA Washington, D.C. Reagan-National

18h 08m1 stop Dallas/Fort Worth

$1,041American Airlines

Thu, Sep 10 - Wed, Sep 30

7:32 am - 3:45 pmDCA Washington, D.C. Reagan-National-ICN Incheon Intl

19h 13m1 stop Dallas/Fort Worth

5:50 pm - 11:59 pmICN Incheon Intl-DCA Washington, D.C. Reagan-National

19h 09m1 stop Dallas/Fort Worth

$1,041American Airlines

Mon, Sep 14 - Wed, Sep 30

9:20 pm - 6:20 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

31h 00m1 stop Istanbul

12:05 am - 11:45 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

25h 40m1 stop Istanbul

$1,043Turkish Airlines

Mon, Jan 11 - Wed, Feb 24

1:30 pm - 8:55 amIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

29h 25m1 stop Istanbul

10:35 am - 11:45 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 10m1 stop Istanbul

$1,043Turkish Airlines

Thu, Dec 3 - Fri, Dec 11

Cheap last minute flights

Enter your travel dates to find the best prices.

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Wed, Sep 2 - Mon, Sep 14

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Wed, Sep 2 - Mon, Sep 28

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

9:25 pm - 5:56 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

33h 31m3 stops Newark Orlando Blountville Tri Cities TN/VA

$963Multiple Airlines

Fri, Sep 4 - Sun, Sep 27

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

9:25 pm - 5:18 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

56h 53m2 stops Newark Atlanta Hartsfield-Jackson

$966Multiple Airlines

Fri, Sep 4 - Thu, Sep 17

1:15 am - 6:45 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

28h 30m1 stop Taipei City Taiwan Taoyuan Intl

7:45 pm - 10:00 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 15m1 stop Taipei City Taiwan Taoyuan Intl

$1,025EVA Air

Wed, Sep 2 - Thu, Sep 10

10:22 pm - 3:45 pmDCA Washington, D.C. Reagan-National-ICN Incheon Intl

28h 23m2 stops New York LaGuardia Dallas/Fort Worth

5:50 pm - 9:04 amICN Incheon Intl-DCA Washington, D.C. Reagan-National

28h 14m2 stops Dallas/Fort Worth Nashville Intl

$1,026American Airlines

Mon, Aug 31 - Mon, Sep 14

6:59 am - 3:45 pmDCA Washington, D.C. Reagan-National-ICN Incheon Intl

19h 46m1 stop Dallas/Fort Worth

5:50 pm - 8:59 amICN Incheon Intl-DCA Washington, D.C. Reagan-National

28h 09m1 stop Dallas/Fort Worth

$1,026American Airlines

Mon, Aug 31 - Mon, Sep 14

1:15 am - 6:45 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

28h 30m1 stop Taipei City Taiwan Taoyuan Intl

7:45 pm - 10:00 pmICN Incheon Intl-IAD Washington, D.C. Dulles Intl

39h 15m1 stop Taipei City Taiwan Taoyuan Intl

$1,026EVA Air

Wed, Sep 2 - Thu, Sep 10

5:20 pm - 4:00 amBWI Baltimore/Washington-ICN Incheon Intl

21h 40m1 stop Atlanta Hartsfield-Jackson

7:20 pm - 6:25 amICN Incheon Intl-BWI Baltimore/Washington

24h 05m1 stop Salt Lake City

$1,108Delta

Thu, Sep 3 - Tue, Sep 29

9:59 am - 4:25 pmBWI Baltimore/Washington-ICN Incheon Intl

17h 26m1 stop Detroit Metropolitan Wayne County

10:15 am - 4:55 pmICN Incheon Intl-BWI Baltimore/Washington

19h 40m1 stop Detroit Metropolitan Wayne County

$1,108Delta

Thu, Sep 3 - Wed, Sep 23

Cheap direct flights

Enter your travel dates to find the best prices.

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Fri, Sep 25 - Fri, Oct 16

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Mon, Sep 14 - Wed, Sep 30

1:20 pm - 5:55 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 35mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$963AIR PREMIA

Mon, Sep 21 - Mon, Oct 12

11:50 am - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 50mnonstop

10:15 am - 9:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 35mnonstop

$1,217Korean Air

Tue, Nov 3 - Wed, Nov 11

11:50 am - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 50mnonstop

10:15 am - 9:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 35mnonstop

$1,217Korean Air

Wed, Nov 4 - Thu, Nov 12

11:50 am - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 50mnonstop

10:15 am - 9:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 35mnonstop

$1,217Korean Air

Mon, Nov 2 - Tue, Nov 10

11:50 am - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 50mnonstop

10:15 am - 9:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 35mnonstop

$1,243Delta

Wed, Nov 11 - Thu, Nov 19

1:15 pm - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 25mnonstop

10:25 am - 11:05 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 40mnonstop

$1,243Delta

Tue, Sep 22 - Mon, Sep 28

1:15 pm - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 25mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$1,556Multiple Airlines

Sun, Sep 27 - Sun, Oct 4

1:15 pm - 5:40 pmIAD Washington, D.C. Dulles Intl-ICN Incheon Intl

15h 25mnonstop

10:00 am - 10:50 amICN Incheon Intl-IAD Washington, D.C. Dulles Intl

13h 50mnonstop

$1,612Multiple Airlines

Thu, Oct 8 - Wed, Oct 14

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Air China flights from Washington, D.C. to Incheon Intl Airport

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

Air China

Nov 6

IAD10:00 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

ICN4:35 pmIncheon Intl

Nov 20

ICN1:10 pmIncheon Intl

19h 20m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

$958

Air China

Oct 30

IAD11:00 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

ICN4:35 pmIncheon Intl

Nov 17

ICN11:10 amIncheon Intl

21h 20m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

$959

Air China

Sep 11

IAD11:00 pmWashington, D.C. Dulles Intl

26h 15m

1 stop

ICN2:15 pmIncheon Intl

Oct 15

ICN3:30 pmIncheon Intl

41h 00m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

$978

EVA Air flights from Washington, D.C. to Incheon Intl Airport

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

EVA Air

Sep 7

IAD1:15 amWashington, D.C. Dulles Intl

28h 30m

1 stop

ICN6:45 pmIncheon Intl

Sep 23

ICN1:25 pmIncheon Intl

21h 35m

1 stop

IAD10:00 pmWashington, D.C. Dulles Intl

$991

EVA Air

Feb 15

IAD11:55 pmWashington, D.C. Dulles Intl

28h 50m

1 stop

ICN6:45 pmIncheon Intl

Feb 22

ICN11:40 amIncheon Intl

23h 15m

1 stop

IAD8:55 pmWashington, D.C. Dulles Intl

$998

EVA Air

Sep 2

IAD1:15 amWashington, D.C. Dulles Intl

28h 30m

1 stop

ICN6:45 pmIncheon Intl

Sep 10

ICN7:45 pmIncheon Intl

39h 15m

1 stop

IAD10:00 pmWashington, D.C. Dulles Intl

$1,025

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Wed 9/23

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Wed 9/30

9:25 pm-5:18 pm

2 stops32h 53m

$950

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Fri 9/11

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Wed 10/14

9:25 pm-12:21 am

2 stops39h 56m

$953

Quickest round-trip

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Mon 9/21

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Mon 10/12

10:00 am-10:50 am

Nonstop13h 50m

$963

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Wed 9/16

1:20 pm-5:55 pm

Nonstop15h 35m

Incheon Intl

Mon 10/12

10:00 am-10:50 am

Nonstop13h 50m

$963

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Mon 9/28

1:15 am-6:45 pm

1 stop28h 30m

Incheon Intl

Tue 10/6

7:45 pm-10:00 pm

1 stop39h 15m

$987

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Mon 9/21

1:15 am-12:10 pm

1 stop21h 55m

Incheon Intl

Tue 10/6

7:45 pm-10:00 pm

1 stop39h 15m

$991

Washington, D.C.Incheon

DCA Washington, D.C. Reagan-National - ICN Incheon Intl

DCAICN

Washington, D.C. Reagan-National

Thu 9/10

5:00 am-3:45 pm

1 stop21h 45m

Incheon Intl

Wed 9/30

5:50 pm-10:58 pm

1 stop18h 08m

$1,041

Washington, D.C.Incheon

DCA Washington, D.C. Reagan-National - ICN Incheon Intl

DCAICN

Washington, D.C. Reagan-National

Mon 9/14

7:32 am-3:45 pm

1 stop19h 13m

Incheon Intl

Wed 9/30

5:50 pm-11:59 pm

1 stop19h 09m

$1,041

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Mon 1/11

9:20 pm-6:20 pm

1 stop31h 00m

Incheon Intl

Wed 2/24

12:05 am-11:45 am

1 stop25h 40m

$1,043

Washington, D.C.Incheon

IAD Washington, D.C. Dulles Intl - ICN Incheon Intl

IADICN

Washington, D.C. Dulles Intl

Thu 12/3

1:30 pm-8:55 am

1 stop29h 25m

Incheon Intl

Fri 12/11

10:35 am-11:45 am

1 stop39h 10m

$1,043

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Delays

Layovers

Other information

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 $1,075 to $1,342.
The lowest price recently found on this route was $950.

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

The cheapest month to fly to Incheon Intl Airport from Washington, D.C. is in September. Flight prices, which tend to average around $1,243, 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 September, then departing from Washington, D.C. during the month October is also very affordable. Most momondo users find prices during this month for around $1,263.

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

The cheapest day to depart from Washington, D.C. to Incheon Intl Airport is on a Wednesday when prices can be found for as low as $1,260. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,436. 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. to Incheon Intl Airport when you can find flight prices for as low as $1,144. 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 morning when prices are $1,342 on average. Flights to Incheon Intl Airport from Washington, D.C. in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

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

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

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 $1,550 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 $1,334 on momondo.

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

There are 4 cabin classes available to choose from on Washington, D.C. to Incheon Intl Airport 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 Washington, D.C. to Incheon Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Washington, D.C. to Incheon Intl Airport.

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

As of August 2026, prices for Washington, D.C. to Incheon Intl Airport flights are approximately 3% cheaper when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Incheon Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. to Incheon Intl Airport according to our flight data. Find out which month and days have the cheapest flights.

Estimated round-trip price

Cheap Washington, D.C. to Incheon Intl Airport (WAS to ICN) flight deals and tips

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

Best Price Found	$416
Fastest flight time	15h 10m
Direct flights	Every day

The best one-way flight to Incheon Intl Airport from Washington, D.C. in the past 72 hours is $416. The best round-trip flight deal from Washington, D.C. to Incheon Intl Airport found on momondo in the last 72 hours is $950.

The fastest flight from Washington, D.C. to Incheon Intl Airport takes 15h 10m

Direct flights go from Washington, D.C. to Incheon Intl Airport every day.

Search flight deals

Frequently asked questions about flying from Washington, D.C. to Incheon Intl Airport

How far is Washington, D.C. to Incheon Intl by plane?
The straight-line distance from Washington, D.C. to Incheon Intl is 6949.0 mi. Flights usually cover this in 15h 10m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Washington, D.C. to Incheon Intl Airport?
Prices for flights from Washington, D.C. to Incheon Intl Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington, D.C. to Incheon Intl Airport?
There are 8 operators available for flights from Washington, D.C. to Incheon Intl Airport as of August 2026.
How old do you have to be to fly from Washington, D.C. 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. 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. to Incheon Intl Airport?
momondo data reveals that the most frequently booked plane model on the route from Washington, D.C. to Incheon Intl Airport is Boeing 777-300ER, representing 66.56% of all bookings. The subsequent popular models are Boeing 787-9 Dreamliner at 31.09%, Boeing 747 at 0.87%, and Boeing 777 at 0.51%.
What is the most popular airline from Washington, D.C. to Incheon Intl Airport?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Incheon Intl Airport is AIR PREMIA, representing 45% of all bookings. The subsequent popular airlines are Delta at 21%, Korean Air at 15%, and Air Canada at 9%.

Best airlines flying from Washington, D.C. to Incheon Intl Airport

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

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $392	Free Cancellation	Rating 7.8 8,533 reviews	Search Delta flights
Air Canada	PriceFrom $685	Free Cancellation	Rating 7.1 11,560 reviews	Search Air Canada flights
United Airlines	PriceFrom $687	Free Cancellation	Rating 7.4 10,147 reviews	Search United Airlines flights
AIR PREMIA	PriceFrom $784	Free Cancellation	Rating 8.1 105 reviews	Search AIR PREMIA flights
American Airlines	PriceFrom $816	Free Cancellation	Rating 7.1 12,019 reviews	Search American Airlines flights
EVA Air	PriceFrom $875	Free Cancellation	Rating 8.5 1,522 reviews	Search EVA Air flights
Turkish Airlines	PriceFrom $929	Free Cancellation	Rating 7.4 4,478 reviews	Search Turkish Airlines flights
Korean Air	PriceFrom $1,314	Free Cancellation	Rating 8.4 1,219 reviews	Search Korean Air flights

Korean Air Flights From Washington, D.C. to Incheon Intl Airport
Across 3 Korean Air flights from Washington, D.C. to Incheon Intl Airport this week, the average price was $1,649, with the best Korean Air deals starting from $1,314 round-trip. 1,219 users have rated Korean Air on momondo, with an average score of 8.4/10.
AIR PREMIA Flights From Washington, D.C. to Incheon Intl Airport
$784 is the best AIR PREMIA flight deal from Washington, D.C. to Incheon Intl Airport found on momondo over the last 72 hours. The average AIR PREMIA ticket price found was closer to $1,275, however, with flight time and availability significantly affecting the price. AIR PREMIA (8.1/10 from 105 user reviews) flies into Incheon Intl Airport from Washington, D.C. 4 times in an average week so prices can vary.

Daejeon

Suwon

Seongnam

Anyang

Why use momondo?

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?

momondo does allow users to show only those flights to Seoul from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

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

momondo helps you find the best flight between Washington, D.C. and Seoul by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes. momondo can track prices for Washington, D.C. to Seoul 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.

An easier way to manage your Incheon 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Wed 9/30

Wed 10/7

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities

Other flights from Washington, D.C.

Other flights to Seoul

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in South Korea

Flights to Seoul Gimpo Intl Airportfrom $719

Cheap flights from Washington, D.C. to Seoul from $416

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 9/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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

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

Air China flights from Washington, D.C. to Incheon Intl Airport

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

EVA Air flights from Washington, D.C. to Incheon Intl Airport

Our best EVA Air 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

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

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

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

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

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

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

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

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

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

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

What airlines fly to Incheon Intl Airport?

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

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

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

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

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

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

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

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

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

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

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

When to book flights from Washington, D.C. to Incheon Intl Airport

Cheap Washington, D.C. to Incheon Intl Airport (WAS to ICN) flight deals and tips

Best Price Found

Fastest flight time

Direct flights

Frequently asked questions about flying from Washington, D.C. to Incheon Intl Airport

Best airlines flying from Washington, D.C. to Incheon Intl Airport

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

Traveling to a place near Seoul?

Why use momondo?

An easier way to manage your Incheon 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 Seoul

Popular cities in South Korea

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

Washington, D.C. flight routes

According to popular flight searches on momondo this year

Incheon Intl Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Seoul

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Seoul

List of cabin classes available on flights landing in Seoul. Availability may vary depending on flight origin and airline.

Complete your trip to Seoul

Explore popular destinations other users love

According to popular flight searches on momondo this year