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

The number of flights available between Seoul and Washington, D.C. Dulles Intl Airport is 18 per week as of May 2026. The most frequent departure day is Mon, with 17% of weekly flights leaving on this day.

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

The number of flights available between Seoul and Washington, D.C. Dulles Intl Airport is 2 per day as of May 2026. The most frequent departure time is 10:00AM, with 100% of daily flights leaving at noon.

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

Flight times from Seoul 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 40m on average. Another popular route from Seoul to Washington, D.C. Dulles Intl Airport is flying from Seoul to Washington, D.C. Dulles Intl Airport, which will take roughly 21h 10m. Keep in mind that layovers or delays could extend your travel time.

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

Air China, United Airlines, and Qatar Airways are the most popular carriers operating from Seoul to Washington, D.C. Dulles Intl

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 Seoul according to our data. Korean Air is the first choice among our users, with 38% 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.

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

Flights via Dallas (DFW) offer the lowest average round-trip price of $723.

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

Dallas (DFW) was the most common stop: 63% of momondo users choosing 1-stop flights on this route connected there.

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

Flights connecting via Dallas (DFW) have the shortest average one-way travel time: 17h 44m.

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

Dallas (DFW) has the shortest average layover time for this route: 1h 42m.

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

As of May 2026, there are 5 operators available to choose from for flights from Seoul to Washington, D.C. Dulles Intl Airport.

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

The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul to Washington, D.C. Dulles Intl Airport.

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

The travel and health documents you'll need for your trip to Washington, D.C. Dulles 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 Washington, D.C. Dulles Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$509 Cheap Flights from Seoul to Washington, D.C. Dulles Intl Airport in 2026

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

Prices are currently low for flights on this route. Typical prices usually range from $1,416 to $1,072. The lowest price recently found on this route was $1,082.

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Enter your travel dates to find the best prices.

10:50 am - 7:30 pm

ICN

IAD

21h 40m

1 stop

11:00 pm - 4:35 pm

IAD

ICN

28h 35m

1 stop

$1,082Air China

Tue, Jun 9 - Fri, Jul 24

1:05 pm - 7:30 pm

ICN

IAD

19h 25m

1 stop

11:00 pm - 2:20 pm

IAD

ICN

26h 20m

1 stop

$1,098Air China

Fri, Jun 19 - Fri, Jun 26

3:45 pm - 7:30 pm

ICN

IAD

40h 45m

1 stop

11:00 pm - 2:20 pm

IAD

ICN

26h 20m

1 stop

$1,100Air China

Mon, Sep 7 - Fri, Sep 18

3:45 pm - 7:30 pm

ICN

IAD

40h 45m

1 stop

11:00 pm - 10:00 pm

IAD

ICN

34h 00m

1 stop

$1,102Air China

Mon, Sep 7 - Fri, Sep 18

10:50 am - 7:30 pm

ICN

IAD

21h 40m

1 stop

11:00 pm - 4:35 pm

IAD

ICN

28h 35m

1 stop

$1,104Air China

Tue, Jul 7 - Tue, Aug 4

3:45 pm - 7:30 pm

ICN

IAD

40h 45m

1 stop

11:00 pm - 2:20 pm

IAD

ICN

26h 20m

1 stop

$1,106Air China

Mon, Sep 7 - Fri, Sep 18

4:50 pm - 10:16 pm

ICN

IAD

18h 26m

1 stop

10:21 pm - 3:00 pm

IAD

ICN

27h 39m

1 stop

$1,157United Airlines

Wed, Jun 17 - Sat, Jul 11

7:55 pm - 10:05 am

GMP

IAD

27h 10m

1 stop

12:15 pm - 10:20 pm

IAD

GMP

21h 05m

1 stop

$1,455ANA

Wed, Jun 17 - Wed, Sep 23

12:40 pm - 10:05 am

GMP

IAD

34h 25m

1 stop

12:15 pm - 10:30 pm

IAD

GMP

21h 15m

1 stop

$1,474ANA

Wed, Sep 9 - Wed, Oct 28

2:25 pm - 6:22 am

GMP

IAD

28h 57m

2 stops

9:55 am - 10:15 pm

IAD

GMP

23h 20m

2 stops

$1,641Multiple Airlines

Tue, Jun 2 - Tue, Jun 9

Turkish Airlines flights from Seoul to Washington, D.C. Dulles Intl Airport

Our best Turkish Airlines deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets

Turkish Airlines

Jun 22

ICN11:20 pmIncheon Intl

25h 15m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

Jul 13

IAD1:20 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

ICN8:35 amIncheon Intl

$1,271

Turkish Airlines

Jun 22

ICN11:20 pmIncheon Intl

25h 15m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

Jul 13

IAD1:20 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

ICN8:35 amIncheon Intl

$1,321

Turkish Airlines

Jun 22

ICN11:20 pmIncheon Intl

25h 15m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

Jul 13

IAD1:20 pmWashington, D.C. Dulles Intl

30h 15m

1 stop

ICN8:35 amIncheon Intl

$1,324

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

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

Air China

Jun 9

ICN10:50 amIncheon Intl

21h 40m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

Jul 24

IAD11:00 pmWashington, D.C. Dulles Intl

28h 35m

1 stop

ICN4:35 pmIncheon Intl

$1,082

Air China

Jun 19

ICN1:05 pmIncheon Intl

19h 25m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

Jun 26

IAD11:00 pmWashington, D.C. Dulles Intl

26h 20m

1 stop

ICN2:20 pmIncheon Intl

$1,098

Air China

Sep 7

ICN3:45 pmIncheon Intl

40h 45m

1 stop

IAD7:30 pmWashington, D.C. Dulles Intl

Sep 18

IAD11:00 pmWashington, D.C. Dulles Intl

26h 20m

1 stop

ICN2:20 pmIncheon Intl

$1,100

momondo Fare Finder

Use the filters below to find and compare flights from Seoul 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

Tue 6/9

10:50 am-7:30 pm

1 stop21h 40m

Washington, D.C. Dulles Intl

Fri 7/24

11:00 pm-4:35 pm

1 stop28h 35m

$1,082

Quickest round-trip

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 6/19

1:05 pm-7:30 pm

1 stop19h 25m

Washington, D.C. Dulles Intl

Fri 6/26

11:00 pm-2:20 pm

1 stop26h 20m

$1,098

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-2:20 pm

1 stop26h 20m

$1,100

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-10:00 pm

1 stop34h 00m

$1,102

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 7/7

10:50 am-7:30 pm

1 stop21h 40m

Washington, D.C. Dulles Intl

Tue 8/4

11:00 pm-4:35 pm

1 stop28h 35m

$1,104

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 9/7

3:45 pm-7:30 pm

1 stop40h 45m

Washington, D.C. Dulles Intl

Fri 9/18

11:00 pm-2:20 pm

1 stop26h 20m

$1,106

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 6/17

4:50 pm-10:16 pm

1 stop18h 26m

Washington, D.C. Dulles Intl

Sat 7/11

10:21 pm-3:00 pm

1 stop27h 39m

$1,157

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 6/17

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Wed 9/23

12:15 pm-10:20 pm

1 stop21h 05m

$1,455

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/9

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Wed 10/28

12:15 pm-10:30 pm

1 stop21h 15m

$1,474

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Tue 6/2

2:25 pm-6:22 am

2 stops28h 57m

Washington, D.C. Dulles Intl

Tue 6/9

9:55 am-10:15 pm

2 stops23h 20m

$1,641

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 Seoul 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

Layovers

Other information

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

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

In general, September is the cheapest month to fly from Seoul 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 $275. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $387.

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 $1,205. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Seoul to Washington, D.C. Dulles Intl Airport for around $1,655.

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

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

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

You are more likely to see cheaper flights to Washington, D.C. Dulles Intl Airport from Seoul 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 $1,317 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 Seoul for as low as $845 on momondo.

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

There are 3 cabin classes available to choose from on Seoul to Washington, D.C. Dulles 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 Seoul to Washington, D.C. Dulles Intl Airport flights?

You could potentially save up to 25% on your flight if you consider stops on a Seoul to Washington, D.C. Dulles Intl Airport flight.

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

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

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

Estimated round-trip price

Cheap Seoul to Washington, D.C. Dulles Intl Airport (SEL to IAD) flight deals and tips

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

Best Price Found	$701
Fastest flight time	13h 40m
Direct flights	Mon, Tue, Thu and Sat

The best one-way flight to Washington, D.C. Dulles Intl Airport from Seoul in the past 72 hours is $701. The best round-trip flight deal from Seoul to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,155.

The fastest flight from Seoul to Washington, D.C. Dulles Intl Airport takes 13h 40m

Direct flights go from Seoul 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 Seoul to Washington, D.C. Dulles Intl Airport

How far is Seoul to Washington, D.C. Dulles Intl by plane?
The distance between Seoul and Washington, D.C. Dulles Intl is about 6922.8 mi. Flights usually cover this in 13h 40m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seoul to Washington, D.C. Dulles Intl Airport?
Prices for flights from Seoul to Washington, D.C. Dulles Intl Airport refresh daily.
How many operators does momondo search for flights from Seoul to Washington, D.C. Dulles Intl Airport?
As of May 2026, there are 5 operators available to choose from for flights from Seoul to Washington, D.C. Dulles Intl Airport.
How old do you have to be to fly from Seoul to Washington, D.C. Dulles Intl Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seoul to Washington, D.C. Dulles Intl Airport.
What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?
The travel and health documents you'll need for your trip to Washington, D.C. Dulles 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 Washington, D.C. Dulles 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 Seoul to Washington, D.C. Dulles Intl Airport?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Seoul to Washington, D.C. Dulles Intl Airport is Boeing 777-300ER (70.00% of total bookings). The next most popular plane models are Boeing 787-9 Dreamliner (29.37%), Airbus A350-900 (0.42%), and Airbus A321-100/200 (0.21%).

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

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

Airline	Rating	Free Cancellation	Price
American Airlines	PriceFrom $478	Free Cancellation	Rating 7.1 11,647 reviews	Search American Airlines flights
United Airlines	PriceFrom $508	Free Cancellation	Rating 7.4 9,753 reviews	Search United Airlines flights
Delta	PriceFrom $853	Free Cancellation	Rating 7.9 8,445 reviews	Search Delta flights
AIR PREMIA	PriceFrom $915	Free Cancellation	Rating 8.0 93 reviews	Search AIR PREMIA flights
Korean Air	PriceFrom $1,223	Free Cancellation	Rating 8.4 1,217 reviews	Search Korean Air flights

Korean Air Flights From Seoul to Washington, D.C. Dulles Intl Airport
Across 7 Korean Air flights from Seoul to Washington, D.C. Dulles Intl Airport this week, the average price was $1,576, with the best Korean Air deals starting from $1,223 round-trip. 1,217 users have rated Korean Air on momondo, with an average score of 8.4/10.
AIR PREMIA Flights From Seoul to Washington, D.C. Dulles Intl Airport
Another popular option for Seoul to Washington, D.C. Dulles Intl Airport flights is AIR PREMIA (8.0/10, 93 ratings). AIR PREMIA flies from Seoul to Washington, D.C. Dulles Intl Airport around 4 times per week, with deals starting from $915 round-trip and rising to an average price of around $1,088.

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Why use momondo?

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

It is quick and easy to find Seoul to Washington, D.C. flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Washington, D.C. that suits you.

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

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

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

Once all potential Seoul to Washington, D.C. flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

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

Price alerts on flights to Washington, D.C. from Seoul are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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

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Cheap flights from Seoul to Washington, D.C. from $509

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seoul to Washington, D.C. departing on 6/11. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

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Turkish Airlines flights from Seoul to Washington, D.C. Dulles Intl Airport

Our best Turkish Airlines deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets

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

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

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Use the filters below to find and compare flights from Seoul 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 Seoul to Washington, D.C. Dulles Intl Airport

What is the typical price of a round-trip flight between Seoul and 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 Seoul to Washington, D.C. Dulles Intl flight route?

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

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

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

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

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

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

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

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

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

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

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

How many flights depart from Seoul 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?

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

Cheap Seoul to Washington, D.C. Dulles Intl Airport (SEL to IAD) flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

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

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

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

Korean Air Flights From Seoul to Washington, D.C. Dulles Intl Airport

AIR PREMIA Flights From Seoul to Washington, D.C. Dulles Intl Airport

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