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Cheap flights from Seoul to Washington, D.C. from $498

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 5/17. 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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0 bags

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Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
11:30 am - 10:28 pm
ICN
-
DCA
23h 58m
1 stop
United Airlines Logo
6:00 am - 3:00 pm
DCA
-
ICN
44h 00m
3 stops
$745United Airlines
Wed, Apr 22 - Sat, Apr 25
United Airlines Logo
5:15 pm - 9:53 pm
ICN
-
DCA
17h 38m
1 stop
United Airlines Logo
7:00 am - 3:20 pm
DCA
-
ICN
19h 20m
1 stop
$746United Airlines
Wed, Sep 9 - Tue, Oct 20
United Airlines Logo
4:50 pm - 10:15 pm
ICN
-
DCA
18h 25m
1 stop
United Airlines Logo
4:13 pm - 4:20 am
DCA
-
ICN
23h 07m
2 stops
$748United Airlines
Tue, Jun 2 - Wed, Jul 29
Alaska Airlines Logo
7:35 pm - 4:08 pm
ICN
-
DCA
33h 33m
1 stop
Alaska Airlines Logo
8:00 am - 5:30 pm
DCA
-
ICN
20h 30m
1 stop
$777Alaska Airlines
Wed, Sep 9 - Sat, Oct 24
United Airlines Logo
5:15 pm - 9:53 pm
ICN
-
DCA
17h 38m
1 stop
United Airlines Logo
7:00 am - 3:20 pm
DCA
-
ICN
19h 20m
1 stop
$780United Airlines
Tue, Sep 8 - Fri, Oct 23
United Airlines Logo
5:15 pm - 9:53 pm
ICN
-
DCA
17h 38m
1 stop
United Airlines Logo
7:00 am - 3:20 pm
DCA
-
ICN
19h 20m
1 stop
$787United Airlines
Mon, Sep 7 - Fri, Oct 23
Air Canada Logo
7:05 pm - 9:55 pm
ICN
-
DCA
39h 50m
2 stops
Air Canada Logo
9:40 am - 5:30 pm
DCA
-
ICN
42h 50m
2 stops
$905Air Canada
Tue, May 5 - Tue, May 12
ANA Logo
7:55 pm - 2:22 pm
GMP
-
DCA
31h 27m
2 stops
ANA Logo
3:30 pm - 11:05 am
DCA
-
GMP
30h 35m
2 stops
$1,027ANA
Wed, Jun 17 - Fri, Jul 31
Japan Airlines Logo
12:05 pm - 11:14 pm
GMP
-
DCA
24h 09m
2 stops
Japan Airlines Logo
8:20 am - 9:15 pm
DCA
-
GMP
23h 55m
2 stops
$1,156Japan Airlines
Thu, Jun 4 - Mon, Sep 14
Japan Airlines Logo
12:05 pm - 11:14 pm
GMP
-
DCA
24h 09m
2 stops
Japan Airlines Logo
8:31 am - 9:15 pm
DCA
-
GMP
23h 44m
2 stops
$1,208Japan Airlines
Thu, Jun 4 - Sun, Jul 26

Alaska Airlines flights from Seoul to Washington, D.C. Reagan-National Airport

Our best Alaska Airlines deals on Seoul to Washington, D.C. Reagan-National Airport flight tickets
Alaska Airlines
Sep 9
ICN7:35 pmIncheon Intl
33h 33m
1 stop
DCA4:08 pmWashington, D.C. Reagan-National
Oct 24
DCA8:00 amWashington, D.C. Reagan-National
20h 30m
1 stop
ICN5:30 pmIncheon Intl
$777
Alaska Airlines
Apr 23
ICN7:35 pmIncheon Intl
33h 53m
1 stop
DCA4:28 pmWashington, D.C. Reagan-National
Apr 29
DCA8:00 amWashington, D.C. Reagan-National
20h 30m
1 stop
ICN5:30 pmIncheon Intl
$993

Japan Airlines flights from Seoul to Washington, D.C. Reagan-National Airport

Our best Japan Airlines deals on Seoul to Washington, D.C. Reagan-National Airport flight tickets
Japan Airlines
Jun 4
GMP12:05 pmSeoul Gimpo Intl
24h 09m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
Sep 14
DCA8:20 amWashington, D.C. Reagan-National
23h 55m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,156
Japan Airlines
Jun 4
GMP12:05 pmSeoul Gimpo Intl
24h 09m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
Jul 26
DCA8:31 amWashington, D.C. Reagan-National
23h 44m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,208
Japan Airlines
Jun 8
GMP8:00 amSeoul Gimpo Intl
28h 14m
2 stops
DCA11:14 pmWashington, D.C. Reagan-National
Jun 18
DCA8:29 amWashington, D.C. Reagan-National
23h 46m
2 stops
GMP9:15 pmSeoul Gimpo Intl
$1,254

momondo Fare Finder

 
Customize your flight search to find flights from Seoul to Washington, D.C. Reagan-National 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 March 22, 2026.
Use the filters below to find and compare flights from Seoul to Washington, D.C. Reagan-National Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 4/22

11:30 am-10:28 pm

1 stop23h 58m

Washington, D.C. Reagan-National

Sat 4/25

6:00 am-3:00 pm

3 stops44h 00m

$745
Quickest round-trip

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/9

5:15 pm-9:53 pm

1 stop17h 38m

Washington, D.C. Reagan-National

Tue 10/20

7:00 am-3:20 pm

1 stop19h 20m

$746

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 6/2

4:50 pm-10:15 pm

1 stop18h 25m

Washington, D.C. Reagan-National

Wed 7/29

4:13 pm-4:20 am

2 stops23h 07m

$748

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/9

7:35 pm-4:08 pm

1 stop33h 33m

Washington, D.C. Reagan-National

Sat 10/24

8:00 am-5:30 pm

1 stop20h 30m

$777

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 9/8

5:15 pm-9:53 pm

1 stop17h 38m

Washington, D.C. Reagan-National

Fri 10/23

7:00 am-3:20 pm

1 stop19h 20m

$780

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 9/7

5:15 pm-9:53 pm

1 stop17h 38m

Washington, D.C. Reagan-National

Fri 10/23

7:00 am-3:20 pm

1 stop19h 20m

$787

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 5/5

7:05 pm-9:55 pm

2 stops39h 50m

Washington, D.C. Reagan-National

Tue 5/12

9:40 am-5:30 pm

2 stops42h 50m

$905

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Wed 6/17

7:55 pm-2:22 pm

2 stops31h 27m

Washington, D.C. Reagan-National

Fri 7/31

3:30 pm-11:05 am

2 stops30h 35m

$1,027

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 6/4

12:05 pm-11:14 pm

2 stops24h 09m

Washington, D.C. Reagan-National

Mon 9/14

8:20 am-9:15 pm

2 stops23h 55m

$1,156

SeoulWashington, D.C.

GMP - DCA

GMPDCA

Seoul Gimpo Intl

Thu 6/4

12:05 pm-11:14 pm

2 stops24h 09m

Washington, D.C. Reagan-National

Sun 7/26

8:31 am-9:15 pm

2 stops23h 44m

$1,208

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. Reagan-National 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

Can stopping save me money on Seoul to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 2% on your flight if you consider stops on a Seoul to Washington, D.C. Reagan-National Airport flight.

When to book flights from Seoul to Washington, D.C. Reagan-National Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Seoul to Washington, D.C. Reagan-National 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. Reagan-National Airport (SEL to DCA) flight deals and tips

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

Fastest flight time

17h 38m

Direct flights

None
The fastest flight from Seoul to Washington, D.C. Reagan-National Airport takes 17h 38m
There are no direct flights from Seoul to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Seoul to Washington, D.C. Reagan-National Airport.
Search flight deals

  • How far is Seoul to Washington, D.C. Reagan-National by plane?

    Washington, D.C. Reagan-National is 6936.4 mi away from Seoul. By plane, this route typically takes 17h 38m.

  • When did momondo last update prices for flights from Seoul to Washington, D.C. Reagan-National Airport?

    Prices for flights from Seoul to Washington, D.C. Reagan-National Airport are refreshed on a daily basis.

  • How old do you have to be to fly from Seoul to Washington, D.C. Reagan-National 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. Reagan-National Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Reagan-National Airport?

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

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
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Silver Spring
Fredericksburg
Rockville
Tysons
Manassas
Linthicum Heights
Springfield
Bethesda
Fairfax
College Park

Why use momondo?

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

Finding the right flight to Washington, D.C. from Seoul is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Washington, D.C. quick and easy, saving you time and money.

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

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

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington, D.C. from Seoul.

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

If you are not ready to book a flight from Seoul to Washington, D.C. now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington, D.C. and let you know when they change.

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