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

Historically, on average around 13% 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 107 minutes.

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

United Airlines, Alaska Airlines, and Qatar Airways are the most popular carriers operating from South Korea to Washington, D.C. Dulles Intl

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 13% of their flights experiencing any sort of delay.

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

Tuesday 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.

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 South Korea according to our data. Korean Air is the first choice among our users, with 42% 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 long does it take to fly to Washington, D.C. Dulles Intl Airport?

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 50m on average. Another popular route from South Korea to Washington, D.C. Dulles Intl Airport is flying from Busan to Washington, D.C. Dulles Intl Airport, which will take roughly 19h 59m. Keep in mind that layovers or delays could extend your travel time.

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.

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

As of April 2026, there are 5 operators available to choose from 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?

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.

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.

$464 Cheap Flights from South Korea to Washington, D.C. Dulles Intl Airport in 2026

Q: 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 April 2026. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

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

As of April 2026, 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.

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

Enter your travel dates to find the best prices.

4:50 pm - 12:55 am

ICN

IAD

21h 05m

1 stop

12:35 pm - 4:20 am

IAD

ICN

26h 45m

1 stop

$842Asiana Airlines

Wed, May 27 - Wed, Aug 26

4:50 pm - 12:55 am

ICN

IAD

21h 05m

1 stop

2:43 pm - 4:20 am

IAD

ICN

24h 37m

2 stops

$847Asiana Airlines

Wed, May 27 - Wed, Aug 26

10:00 am - 10:50 am

ICN

IAD

13h 50mnonstop

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

$971AIR PREMIA

Mon, May 18 - Wed, May 27

5:50 pm - 5:40 am

ICN

IAD

24h 50m

2 stops

6:10 am - 3:45 pm

IAD

ICN

20h 35m

1 stop

$1,037American Airlines

Wed, May 6 - Wed, Sep 2

12:40 pm - 10:05 am

GMP

IAD

34h 25m

1 stop

8:35 am - 10:20 pm

IAD

GMP

24h 45m

2 stops

$1,045ANA

Wed, Sep 30 - Wed, Oct 7

10:00 am - 10:50 am

ICN

IAD

13h 50mnonstop

1:20 pm - 5:55 pm

IAD

ICN

15h 35mnonstop

$1,059AIR PREMIA

Wed, Apr 29 - Wed, May 20

11:30 am - 7:30 am

ICN

IAD

33h 00m

1 stop

8:33 am - 4:20 am

IAD

ICN

30h 47m

1 stop

$1,065United Airlines

Fri, Jun 5 - Sun, Jul 19

11:30 am - 12:45 am

ICN

IAD

26h 15m

2 stops

8:33 am - 4:20 am

IAD

ICN

30h 47m

1 stop

$1,075United Airlines

Fri, Jun 5 - Sun, Jul 19

4:30 pm - 11:29 pm

PUS

IAD

19h 59m

2 stops

1:15 pm - 8:45 pm

IAD

PUS

18h 30m

1 stop

$1,748Korean Air

Tue, Sep 8 - Sat, Sep 12

4:30 pm - 11:29 pm

PUS

IAD

19h 59m

2 stops

1:15 pm - 7:45 am

IAD

PUS

29h 30m

1 stop

$1,750Korean Air

Tue, Sep 8 - Sat, Sep 12

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

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

Asiana Airlines

May 27

ICN4:50 pmIncheon Intl

26h 03m

1 stop

IAD5:53 amWashington, D.C. Dulles Intl

Aug 31

IAD2:36 pmWashington, D.C. Dulles Intl

24h 44m

1 stop

ICN4:20 amIncheon Intl

$842

Asiana Airlines

May 27

ICN4:50 pmIncheon Intl

21h 05m

1 stop

IAD12:55 amWashington, D.C. Dulles Intl

Aug 31

IAD2:43 pmWashington, D.C. Dulles Intl

24h 37m

2 stops

ICN4:20 amIncheon Intl

$847

Asiana Airlines

Jun 3

ICN4:50 pmIncheon Intl

26h 03m

1 stop

IAD5:53 amWashington, D.C. Dulles Intl

Sep 7

IAD6:35 pmWashington, D.C. Dulles Intl

20h 45m

1 stop

ICN4:20 amIncheon Intl

$1,046

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

American Airlines

May 6

ICN5:50 pmIncheon Intl

24h 50m

2 stops

IAD5:40 amWashington, D.C. Dulles Intl

Sep 2

IAD6:10 amWashington, D.C. Dulles Intl

20h 35m

1 stop

ICN3:45 pmIncheon Intl

$1,037

American Airlines

Oct 3

ICN5:50 pmIncheon Intl

31h 57m

2 stops

IAD12:47 pmWashington, D.C. Dulles Intl

Oct 10

IAD5:41 pmWashington, D.C. Dulles Intl

33h 04m

2 stops

ICN3:45 pmIncheon Intl

$1,196

American Airlines

Oct 3

ICN5:50 pmIncheon Intl

17h 57m

1 stop

IAD10:47 pmWashington, D.C. Dulles Intl

Oct 10

IAD6:41 pmWashington, D.C. Dulles Intl

32h 04m

1 stop

ICN3:45 pmIncheon Intl

$1,200

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.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 5/27

4:50 pm-12:55 am

1 stop21h 05m

Washington, D.C. Dulles Intl

Wed 8/26

12:35 pm-4:20 am

1 stop26h 45m

$842

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 5/27

4:50 pm-12:55 am

1 stop21h 05m

Washington, D.C. Dulles Intl

Wed 8/26

2:43 pm-4:20 am

2 stops24h 37m

$847

Quickest round-trip

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 5/18

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Wed 5/27

1:20 pm-5:55 pm

Nonstop15h 35m

$971

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 5/6

5:50 pm-5:40 am

2 stops24h 50m

Washington, D.C. Dulles Intl

Wed 9/2

6:10 am-3:45 pm

1 stop20h 35m

$1,037

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/30

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Wed 10/7

8:35 am-10:20 pm

2 stops24h 45m

$1,045

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 4/29

10:00 am-10:50 am

Nonstop13h 50m

Washington, D.C. Dulles Intl

Wed 5/20

1:20 pm-5:55 pm

Nonstop15h 35m

$1,059

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 6/5

11:30 am-7:30 am

1 stop33h 00m

Washington, D.C. Dulles Intl

Sun 7/19

8:33 am-4:20 am

1 stop30h 47m

$1,065

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 6/5

11:30 am-12:45 am

2 stops26h 15m

Washington, D.C. Dulles Intl

Sun 7/19

8:33 am-4:20 am

1 stop30h 47m

$1,075

BusanWashington, D.C.

PUS - IAD

PUSIAD

Busan Gimhae

Tue 9/8

4:30 pm-11:29 pm

2 stops19h 59m

Washington, D.C. Dulles Intl

Sat 9/12

1:15 pm-8:45 pm

1 stop18h 30m

$1,748

BusanWashington, D.C.

PUS - IAD

PUSIAD

Busan Gimhae

Tue 9/8

4:30 pm-11:29 pm

2 stops19h 59m

Washington, D.C. Dulles Intl

Sat 9/12

1:15 pm-7:45 am

1 stop29h 30m

$1,750

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 South Korea 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

Prices

Airlines

Delays

Other information

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

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 August is also cheap. Prices for this month can be found on momondo for an average of $960.

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

Our data shows that Friday 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 $1,276. 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 $1,655.

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?

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 $1,311 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 $878 on momondo.

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

There are 3 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.

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	$604
Fastest flight time	13h 50m
Direct flights	Mon, Tue, Thu and Sat

The best one-way flight to Washington, D.C. Dulles Intl Airport from South Korea in the past 72 hours is $604. The best round-trip flight deal from South Korea to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $915.

The fastest flight from South Korea to Washington, D.C. Dulles Intl Airport takes 13h 50m

Direct flights go from South Korea to Washington, D.C. Dulles Intl Airport on Monday, Tuesday, Thursday and Saturday. The only airline offering direct flights is AIR PREMIA.

Search flight deals

Frequently asked questions about flying from South Korea to Washington, D.C. Dulles Intl Airport

When did momondo last update prices for flights from South Korea to Washington, D.C. Dulles Intl Airport?
Prices for flights from South Korea to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from South Korea to Washington, D.C. Dulles Intl Airport?
As of April 2026, there are 5 operators available to choose from 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?
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.
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 South Korea to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from South Korea to Washington, D.C. Dulles Intl Airport is Boeing 777-300ER (68.80% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (25.38%), Airbus A350-900 (3.57%), and Boeing 747-8 (2.07%).

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $478	Free Cancellation	Rating 7.1 11,597 reviews	Search American Airlines flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 9,605 reviews	Search United Airlines flights
Delta	PriceFrom $853	Free Cancellation	Rating 7.9 8,418 reviews	Search Delta flights
AIR PREMIA	PriceFrom $915	Free Cancellation	Rating 8.2 85 reviews	Search AIR PREMIA flights
Korean Air	PriceFrom $1,095	Free Cancellation	Rating 8.4 1,208 reviews	Search Korean Air flights

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Gettysburg

Arlington

Winchester

Waldorf

Woodbridge

Laurel

Colonial Beach

Gaithersburg

Towson

Fredericksburg

Silver Spring

Rockville

Sterling

Manassas

Tysons

Linthicum Heights

Bethesda

Fairfax

Why use momondo?

Why should I use momondo to find a flight deal from South Korea 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 South Korea.

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

Yes. momondo enables you to select and highlight flights to Washington, D.C. from South Korea with this policy.

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

momondo provides multiple filters to help you find the best flight to Washington, D.C. from South Korea. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

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

Yes momondo offers price alerts on flights to Washington, D.C. from South Korea. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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Cheap flights from South Korea to Washington, D.C. from $464

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 5/12. 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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Asiana Airlines flights from South Korea to Washington, D.C. Dulles Intl Airport

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

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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 South Korea to Washington, D.C. Dulles Intl flight route?

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?

What is the cheapest airline that flies 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?

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

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

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

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

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

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

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Frequently asked questions about flying 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

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