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Cheap flights from Seoul to Washington, D.C. from $334

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 12/2. 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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Air Canada Logo
8:10 pm - 3:46 pmICN-IAD
33h 36m1 stop
Air Canada Logo
4:30 pm - 4:00 pmIAD-ICN
33h 30m2 stops
$365Air Canada
Find Deal
Thu, Nov 20 - Wed, Dec 3
Air Canada Logo
8:10 pm - 3:46 pmICN-IAD
33h 36m1 stop
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
$387Air Canada
Find Deal
Thu, Nov 20 - Sun, Nov 30
Air Canada Logo
8:10 pm - 3:46 pmICN-IAD
33h 36m1 stop
Air Canada Logo
9:00 am - 6:25 pmIAD-ICN
19h 25m1 stop
$388Air Canada
Find Deal
Thu, Nov 20 - Sun, Nov 30
Alaska Airlines Logo
8:35 pm - 6:13 amICN-IAD
23h 38m1 stop
Alaska Airlines Logo
7:33 am - 6:35 pmIAD-ICN
21h 02m1 stop
$461Alaska Airlines
Find Deal
Fri, Dec 26 - Thu, Jan 1
Alaska Airlines Logo
8:35 pm - 5:49 amICN-IAD
22h 14m1 stop
Alaska Airlines Logo
7:00 am - 6:35 pmIAD-ICN
22h 35m1 stop
$474Alaska Airlines
Find Deal
Fri, May 1 - Sat, May 9
American Airlines Logo
7:15 pm - 8:41 amICN-IAD
27h 26m2 stops
American Airlines Logo
5:10 am - 4:45 pmIAD-ICN
21h 35m2 stops
$478American Airlines
Find Deal
Thu, Nov 20 - Sun, Nov 30
United Airlines Logo
6:00 pm - 5:21 amICN-IAD
25h 21m2 stops
United Airlines Logo
8:15 am - 5:40 amIAD-ICN
31h 25m2 stops
$503United Airlines
Find Deal
Tue, Feb 10 - Sun, Feb 22
United Airlines Logo
6:00 pm - 5:22 amICN-IAD
25h 22m1 stop
United Airlines Logo
2:10 pm - 5:40 amIAD-ICN
25h 30m1 stop
$511United Airlines
Find Deal
Thu, Dec 25 - Mon, Jan 12
American Airlines Logo
7:15 pm - 4:02 pmICN-IAD
34h 47m2 stops
American Airlines Logo
2:16 pm - 4:45 pmIAD-ICN
36h 29m2 stops
$696American Airlines
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Wed, Nov 19 - Wed, Dec 10
Hawaiian Airlines Logo
8:35 pm - 4:26 pmICN-IAD
33h 51m1 stop
Hawaiian Airlines Logo
7:00 am - 6:35 pmIAD-ICN
21h 35m1 stop
$703Hawaiian Airlines
Find Deal
Mon, Feb 2 - Fri, Feb 20

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
Dec 26
ICN8:35 pmIncheon Intl
23h 38m
1 stop
IAD6:13 amWashington, D.C. Dulles Intl
Jan 1
IAD7:33 amWashington, D.C. Dulles Intl
21h 02m
1 stop
ICN6:35 pmIncheon Intl
$461
Find similar
Alaska Airlines
May 1
ICN8:35 pmIncheon Intl
22h 14m
1 stop
IAD5:49 amWashington, D.C. Dulles Intl
May 9
IAD7:00 amWashington, D.C. Dulles Intl
22h 35m
1 stop
ICN6:35 pmIncheon Intl
$474
Find similar
Alaska Airlines
Jan 29
ICN8:35 pmIncheon Intl
33h 51m
1 stop
IAD4:26 pmWashington, D.C. Dulles Intl
Feb 24
IAD6:55 pmWashington, D.C. Dulles Intl
33h 40m
1 stop
ICN6:35 pmIncheon Intl
$475
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
Nov 20
ICN7:15 pmIncheon Intl
27h 26m
2 stops
IAD8:41 amWashington, D.C. Dulles Intl
Nov 30
IAD5:10 amWashington, D.C. Dulles Intl
21h 35m
2 stops
ICN4:45 pmIncheon Intl
$478
Find similar
American Airlines
Nov 19
ICN7:15 pmIncheon Intl
34h 47m
2 stops
IAD4:02 pmWashington, D.C. Dulles Intl
Dec 10
IAD2:16 pmWashington, D.C. Dulles Intl
36h 29m
2 stops
ICN4:45 pmIncheon Intl
$696
Find similar
American Airlines
Nov 19
ICN7:15 pmIncheon Intl
17h 18m
1 stop
IAD10:33 pmWashington, D.C. Dulles Intl
Dec 10
IAD5:08 pmWashington, D.C. Dulles Intl
33h 37m
1 stop
ICN4:45 pmIncheon Intl
$700
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 November 4, 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

Thu 11/20

8:10 pm-3:46 pm

1 stop33h 36m

Washington, D.C. Dulles Intl

Wed 12/3

4:30 pm-4:00 pm

2 stops33h 30m

$365

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/20

8:10 pm-3:46 pm

1 stop33h 36m

Washington, D.C. Dulles Intl

Sun 11/30

9:00 am-6:25 pm

1 stop19h 25m

$387

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/20

8:10 pm-3:46 pm

1 stop33h 36m

Washington, D.C. Dulles Intl

Sun 11/30

9:00 am-6:25 pm

1 stop19h 25m

$388

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 12/26

8:35 pm-6:13 am

1 stop23h 38m

Washington, D.C. Dulles Intl

Thu 1/1

7:33 am-6:35 pm

1 stop21h 02m

$461

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Fri 5/1

8:35 pm-5:49 am

1 stop22h 14m

Washington, D.C. Dulles Intl

Sat 5/9

7:00 am-6:35 pm

1 stop22h 35m

$474

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 11/20

7:15 pm-8:41 am

2 stops27h 26m

Washington, D.C. Dulles Intl

Sun 11/30

5:10 am-4:45 pm

2 stops21h 35m

$478

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Tue 2/10

6:00 pm-5:21 am

2 stops25h 21m

Washington, D.C. Dulles Intl

Sun 2/22

8:15 am-5:40 am

2 stops31h 25m

$503

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Thu 12/25

6:00 pm-5:22 am

1 stop25h 22m

Washington, D.C. Dulles Intl

Mon 1/12

2:10 pm-5:40 am

1 stop25h 30m

$511

IncheonWashington, D.C.

ICN - IAD

ICNIAD

Incheon Intl

Wed 11/19

7:15 pm-4:02 pm

2 stops34h 47m

Washington, D.C. Dulles Intl

Wed 12/10

2:16 pm-4:45 pm

2 stops36h 29m

$696

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

7:00 am-6:35 pm

1 stop21h 35m

$703

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 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 $551. 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 $736.

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 $1,502. 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 $1,646.

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 $1,526 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 $1,288 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 $954 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.

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

You could potentially save up to 2% 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

$1,077

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 $1,077. The best round-trip flight deal from Seoul to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $1,418.
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.
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  • 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 16h 55m, 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
11,038 reviews
Search American Airlines flights
United AirlinesPriceFrom $516Free CancellationRating
7.4
8,998 reviews
Search United Airlines flights
Air CanadaPriceFrom $727Free CancellationRating
7.1
10,400 reviews
Search Air Canada flights
Korean AirPriceFrom $1,208Free CancellationRating
8.4
1,160 reviews
Search Korean Air flights
DeltaPriceFrom $1,303Free CancellationRating
7.9
8,002 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 $1,502, with the best Korean Air deals starting from $1,208 round-trip. 1,160 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, 8,002 ratings). Delta flies from Seoul to Washington, D.C. Dulles Intl Airport around 7 times per week, with deals starting from $1,303 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
Woodbridge
Waldorf
Tysons
Laurel
Colonial Beach
Silver Spring
Fredericksburg
Harpers Ferry
Towson
Rockville
Manassas
Reston
Gaithersburg
Fairfax
Sterling

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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