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Cheap flights from Seoul to Washington, D.C. from $403

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 10/24. 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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Cheap round-trip flights

Air Canada Logo
6:00 pm - 11:45 amICN-IAD
30h 45m2 stops
Air Canada Logo
9:35 am - 4:15 pmIAD-ICN
17h 40m1 stop
$520Air Canada
Find Deal
Fri, Sep 12 - Thu, Sep 25
Air Canada Logo
6:00 pm - 11:13 amICN-IAD
30h 13m1 stop
Air Canada Logo
9:35 am - 4:15 pmIAD-ICN
17h 40m1 stop
$525Air Canada
Find Deal
Wed, Sep 17 - Tue, Sep 23
Air Canada Logo
6:00 pm - 4:18 pmICN-IAD
35h 18m1 stop
Air Canada Logo
9:35 am - 4:15 pmIAD-ICN
17h 40m1 stop
$527Air Canada
Find Deal
Wed, Sep 17 - Tue, Sep 23
United Airlines Logo
11:30 am - 6:52 pmICN-IAD
20h 22m1 stop
United Airlines Logo
5:20 pm - 4:20 amIAD-ICN
22h 00m1 stop
$552United Airlines
Find Deal
Thu, Sep 11 - Wed, Sep 24
United Airlines Logo
11:30 am - 6:52 pmICN-IAD
20h 22m1 stop
United Airlines Logo
12:50 pm - 4:20 amIAD-ICN
26h 30m2 stops
$555United Airlines
Find Deal
Thu, Sep 11 - Tue, Sep 30
United Airlines Logo
4:50 pm - 9:10 pmICN-IAD
17h 20m1 stop
United Airlines Logo
10:10 pm - 4:15 pmIAD-ICN
28h 05m1 stop
$563United Airlines
Find Deal
Fri, Oct 24 - Sun, Nov 2
United Airlines Logo
11:30 am - 5:36 amICN-IAD
31h 06m1 stop
United Airlines Logo
6:03 pm - 5:40 amIAD-ICN
21h 37m1 stop
$582United Airlines
Find Deal
Thu, Oct 23 - Tue, Nov 4
ANA Logo
7:55 pm - 10:05 amGMP-IAD
27h 10m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$968ANA
Find Deal
Wed, Sep 10 - Fri, Dec 5
ANA Logo
7:55 pm - 10:05 amGMP-IAD
27h 10m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$969ANA
Find Deal
Wed, Sep 17 - Fri, Dec 5
ANA Logo
12:40 pm - 10:05 amGMP-IAD
34h 25m1 stop
ANA Logo
11:05 am - 10:30 pmIAD-GMP
21h 25m1 stop
$971ANA
Find Deal
Wed, Sep 10 - Fri, Dec 5

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

Our best Air Canada deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
Air Canada
Sep 12
ICN6:00 pmIncheon Intl
30h 45m
2 stops
IAD11:45 amWashington, D.C. Dulles Intl
Sep 25
IAD9:35 amWashington, D.C. Dulles Intl
17h 40m
1 stop
ICN4:15 pmIncheon Intl
$520
Find similar
Air Canada
Sep 17
ICN6:00 pmIncheon Intl
30h 13m
1 stop
IAD11:13 amWashington, D.C. Dulles Intl
Sep 23
IAD9:35 amWashington, D.C. Dulles Intl
17h 40m
1 stop
ICN4:15 pmIncheon Intl
$525
Find similar
Air Canada
Sep 17
ICN6:00 pmIncheon Intl
35h 18m
1 stop
IAD4:18 pmWashington, D.C. Dulles Intl
Sep 23
IAD9:35 amWashington, D.C. Dulles Intl
17h 40m
1 stop
ICN4:15 pmIncheon Intl
$527
Find similar

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

Our best ANA deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
ANA
Sep 10
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Dec 5
IAD11:05 amWashington, D.C. Dulles Intl
21h 25m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$968
Find similar
ANA
Sep 17
GMP7:55 pmSeoul Gimpo Intl
27h 10m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Dec 5
IAD11:05 amWashington, D.C. Dulles Intl
21h 25m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$969
Find similar
ANA
Sep 10
GMP12:40 pmSeoul Gimpo Intl
34h 25m
1 stop
IAD10:05 amWashington, D.C. Dulles Intl
Dec 5
IAD11:05 amWashington, D.C. Dulles Intl
21h 25m
1 stop
GMP10:30 pmSeoul Gimpo Intl
$971
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Seoul to Washington, D.C. Dulles Intl Airport that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated July 31, 2025.
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

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 9/12

6:00 pm-11:45 am

2 stops30h 45m

Washington, D.C. Dulles Intl

Thu 9/25

9:35 am-4:15 pm

1 stop17h 40m

$520

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/17

6:00 pm-11:13 am

1 stop30h 13m

Washington, D.C. Dulles Intl

Tue 9/23

9:35 am-4:15 pm

1 stop17h 40m

$525

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 9/17

6:00 pm-4:18 pm

1 stop35h 18m

Washington, D.C. Dulles Intl

Tue 9/23

9:35 am-4:15 pm

1 stop17h 40m

$527

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 9/11

11:30 am-6:52 pm

1 stop20h 22m

Washington, D.C. Dulles Intl

Wed 9/24

5:20 pm-4:20 am

1 stop22h 00m

$552

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 9/11

11:30 am-6:52 pm

1 stop20h 22m

Washington, D.C. Dulles Intl

Tue 9/30

12:50 pm-4:20 am

2 stops26h 30m

$555

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 10/24

4:50 pm-9:10 pm

1 stop17h 20m

Washington, D.C. Dulles Intl

Sun 11/2

10:10 pm-4:15 pm

1 stop28h 05m

$563

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 10/23

11:30 am-5:36 am

1 stop31h 06m

Washington, D.C. Dulles Intl

Tue 11/4

6:03 pm-5:40 am

1 stop21h 37m

$582

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/10

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Fri 12/5

11:05 am-10:30 pm

1 stop21h 25m

$968

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/17

7:55 pm-10:05 am

1 stop27h 10m

Washington, D.C. Dulles Intl

Fri 12/5

11:05 am-10:30 pm

1 stop21h 25m

$969

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 9/10

12:40 pm-10:05 am

1 stop34h 25m

Washington, D.C. Dulles Intl

Fri 12/5

11:05 am-10:30 pm

1 stop21h 25m

$971

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Washington, D.C. from

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

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 $1,126. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of September, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $1,161.

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

Our data shows that Saturday 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 $1,418. When flying out on a Wednesday, 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 $1,576.

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

Flying to Washington, D.C. Dulles Intl Airport from Seoul 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 $1,513 on average. Flights to Washington, D.C. Dulles Intl Airport from Seoul in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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 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 $1,410 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 $1,016 on momondo.

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

There are 4 cabin classes available to choose from on Seoul 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.

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

$403

Fastest flight time

17h 20m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Seoul in the past 72 hours is $403. The best round-trip flight deal from Seoul to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $520.
The fastest flight from Seoul to Washington, D.C. Dulles Intl Airport takes 17h 20m
Direct flights go from Seoul to Washington, D.C. Dulles Intl Airport every day.
Search flight deals

  • 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 17h 20m, 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?

  • 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?

  • What is the most popular airline 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
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $688Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
United AirlinesPriceFrom $724Free CancellationRating
7.4
8,900 reviews
Search United Airlines flights
Air CanadaPriceFrom $873Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
Korean AirPriceFrom $1,223Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights
DeltaPriceFrom $1,313Free CancellationRating
8.0
7,981 reviews
Search Delta 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 $1,497, with the best Korean Air deals starting from $1,223 round-trip. 1,121 users have rated Korean Air on momondo, with an average score of 8.4/10.

  • Delta Flights From Seoul to Washington, D.C. Dulles Intl Airport

    Another popular option for Seoul to Washington, D.C. Dulles Intl Airport flights is Delta (8.0/10, 7,981 ratings). Delta flies from Seoul to Washington, D.C. Dulles Intl Airport around 7 times per week, with deals starting from $1,313 round-trip and rising to an average price of around $1,577.

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

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Woodbridge
Laurel
Tysons
Silver Spring
Waldorf
Fredericksburg
Manassas
Harpers Ferry
Towson
Rockville
Colonial Beach
Gaithersburg
Fairfax
Reston
Glen Burnie

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.

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