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Cheap flights from Seoul to Washington, D.C. from $417

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 1/25. 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

Enter your travel dates to find the best prices.
American Airlines Logo
7:15 pm - 10:58 am
ICN
-
IAD
29h 43m2 stops
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$463American Airlines
Wed, Feb 4 - Wed, Feb 11
American Airlines Logo
7:15 pm - 10:58 am
ICN
-
IAD
29h 43m2 stops
American Airlines Logo
11:34 am - 4:45 pm
IAD
-
ICN
39h 11m2 stops
$469American Airlines
Wed, Feb 4 - Sun, Feb 8
American Airlines Logo
7:15 pm - 10:58 am
ICN
-
IAD
29h 43m2 stops
American Airlines Logo
6:00 am - 4:45 pm
IAD
-
ICN
20h 45m1 stop
$483American Airlines
Tue, Feb 3 - Thu, Feb 26
Hawaiian Airlines Logo
8:35 pm - 4:26 pm
ICN
-
IAD
33h 51m1 stop
Hawaiian Airlines Logo
7:05 am - 6:35 pm
IAD
-
ICN
21h 30m1 stop
$567Hawaiian Airlines
Mon, Feb 2 - Fri, Feb 20
United Airlines Logo
11:30 am - 11:59 pm
ICN
-
IAD
25h 29m2 stops
United Airlines Logo
10:05 pm - 3:00 pm
IAD
-
ICN
27h 55m2 stops
$606United Airlines
Mon, Mar 30 - Thu, Apr 30
United Airlines Logo
12:45 pm - 12:59 am
ICN
-
IAD
26h 14m1 stop
United Airlines Logo
6:20 am - 4:15 pm
IAD
-
ICN
19h 55m1 stop
$614United Airlines
Thu, Feb 5 - Thu, Feb 12
ANA Logo
7:50 pm - 9:10 am
GMP
-
IAD
27h 20m1 stop
ANA Logo
12:15 pm - 10:30 pm
IAD
-
GMP
21h 15m1 stop
$1,006ANA
Wed, Feb 11 - Mon, Mar 9
ANA Logo
12:25 pm - 9:10 am
GMP
-
IAD
34h 45m1 stop
ANA Logo
12:15 pm - 10:30 pm
IAD
-
GMP
21h 15m1 stop
$1,027ANA
Wed, Feb 11 - Mon, Mar 9
Multiple Airlines Logo
7:50 pm - 9:21 pm
GMP
-
IAD
39h 31m2 stops
Multiple Airlines Logo
9:55 am - 1:10 pm
IAD
-
GMP
38h 15m2 stops
$1,126Multiple Airlines
Wed, Feb 25 - Sat, Aug 29
Multiple Airlines Logo
7:40 pm - 4:31 pm
GMP
-
IAD
34h 51m2 stops
Multiple Airlines Logo
6:00 am - 10:05 pm
IAD
-
GMP
26h 05m2 stops
$1,337Multiple Airlines
Thu, Feb 5 - Thu, Feb 12

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

Our best Alaska Airlines deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
Alaska Airlines
Apr 23
ICN8:35 pmIncheon Intl
34h 45m
1 stop
IAD6:20 pmWashington, D.C. Dulles Intl
Jul 8
IAD5:01 pmWashington, D.C. Dulles Intl
36h 34m
1 stop
ICN6:35 pmIncheon Intl
$809
Find similar
Alaska Airlines
Apr 22
ICN8:35 pmIncheon Intl
34h 06m
2 stops
IAD5:41 pmWashington, D.C. Dulles Intl
Jul 8
IAD6:05 amWashington, D.C. Dulles Intl
23h 30m
1 stop
ICN6:35 pmIncheon Intl
$818
Find similar
Alaska Airlines
Apr 25
ICN8:35 pmIncheon Intl
58h 06m
2 stops
IAD5:41 pmWashington, D.C. Dulles Intl
Jul 8
IAD5:01 pmWashington, D.C. Dulles Intl
36h 34m
1 stop
ICN6:35 pmIncheon Intl
$853
Find similar

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

Our best American Airlines deals on Seoul to Washington, D.C. Dulles Intl Airport flight tickets
American Airlines
Feb 4
ICN7:15 pmIncheon Intl
35h 16m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Feb 11
IAD6:00 amWashington, D.C. Dulles Intl
20h 45m
1 stop
ICN4:45 pmIncheon Intl
$463
Find similar
American Airlines
Feb 6
ICN7:15 pmIncheon Intl
42h 27m
2 stops
IAD11:42 pmWashington, D.C. Dulles Intl
Feb 8
IAD5:26 pmWashington, D.C. Dulles Intl
33h 19m
1 stop
ICN4:45 pmIncheon Intl
$468
Find similar
American Airlines
Feb 4
ICN7:15 pmIncheon Intl
35h 16m
1 stop
IAD4:31 pmWashington, D.C. Dulles Intl
Feb 8
IAD5:26 pmWashington, D.C. Dulles Intl
33h 19m
1 stop
ICN4:45 pmIncheon Intl
$469
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 December 23, 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

Wed 2/4

7:15 pm-10:58 am

2 stops29h 43m

Washington, D.C. Dulles Intl

Wed 2/11

6:00 am-4:45 pm

1 stop20h 45m

$463

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 2/4

7:15 pm-10:58 am

2 stops29h 43m

Washington, D.C. Dulles Intl

Sun 2/8

11:34 am-4:45 pm

2 stops39h 11m

$469

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 2/3

7:15 pm-10:58 am

2 stops29h 43m

Washington, D.C. Dulles Intl

Thu 2/26

6:00 am-4:45 pm

1 stop20h 45m

$483

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 2/2

8:35 pm-4:26 pm

1 stop33h 51m

Washington, D.C. Dulles Intl

Fri 2/20

7:05 am-6:35 pm

1 stop21h 30m

$567

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Mon 3/30

11:30 am-11:59 pm

2 stops25h 29m

Washington, D.C. Dulles Intl

Thu 4/30

10:05 pm-3:00 pm

2 stops27h 55m

$606

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 2/5

12:45 pm-12:59 am

1 stop26h 14m

Washington, D.C. Dulles Intl

Thu 2/12

6:20 am-4:15 pm

1 stop19h 55m

$614

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/11

7:50 pm-9:10 am

1 stop27h 20m

Washington, D.C. Dulles Intl

Mon 3/9

12:15 pm-10:30 pm

1 stop21h 15m

$1,006

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/11

12:25 pm-9:10 am

1 stop34h 45m

Washington, D.C. Dulles Intl

Mon 3/9

12:15 pm-10:30 pm

1 stop21h 15m

$1,027

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Wed 2/25

7:50 pm-9:21 pm

2 stops39h 31m

Washington, D.C. Dulles Intl

Sat 8/29

9:55 am-1:10 pm

2 stops38h 15m

$1,126

SeoulWashington, D.C.

GMP - IAD

GMPIAD

Seoul Gimpo Intl

Thu 2/5

7:40 pm-4:31 pm

2 stops34h 51m

Washington, D.C. Dulles Intl

Thu 2/12

6:00 am-10:05 pm

2 stops26h 05m

$1,337

Flights are sorted by cheapest round-trip flights 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, November 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 $492. If you aren’t able to travel to Washington, D.C. Dulles Intl Airport during the month of November, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $734.

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

Our data shows that Sunday 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 $1,392. 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 $1,648.

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 $1,537 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 $1,259 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 $986 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

$1,056

Fastest flight time

13h 35m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Seoul in the past 72 hours is $1,056. The best round-trip flight deal from Seoul to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,303.
The fastest flight from Seoul to Washington, D.C. Dulles Intl Airport takes 13h 35m
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 13h 35m, 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 $501Free CancellationRating
7.2
11,054 reviews
Search American Airlines flights
United AirlinesPriceFrom $512Free CancellationRating
7.4
9,106 reviews
Search United Airlines flights
Air CanadaPriceFrom $727Free CancellationRating
7.1
10,551 reviews
Search Air Canada flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,185 reviews
Search Korean Air flights
DeltaPriceFrom $1,301Free CancellationRating
7.9
8,014 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 $1,501, with the best Korean Air deals starting from $1,208 round-trip. 1,185 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 (7.9/10, 8,014 ratings). Delta flies from Seoul to Washington, D.C. Dulles Intl Airport around 7 times per week, with deals starting from $1,301 round-trip and rising to an average price of around $1,579.

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

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

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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