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Cheap flights from Incheon Intl Airport to Washington, D.C. from $674

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Incheon Intl Airport to Washington, D.C. departing on 11/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Incheon Intl Airport to Washington, D.C.

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
12:45 pm - 6:52 pm
ICN
-
DCA
20h 07m
2 stops
United Airlines Logo
8:00 pm - 4:25 pm
DCA
-
ICN
30h 25m
1 stop
$688United Airlines
Mon, Nov 9 - Tue, Nov 10
United Airlines Logo
5:15 pm - 9:59 pm
ICN
-
DCA
17h 44m
1 stop
United Airlines Logo
3:30 pm - 4:40 am
DCA
-
ICN
24h 10m
2 stops
$690United Airlines
Fri, Oct 16 - Mon, Oct 26
United Airlines Logo
5:15 pm - 9:59 pm
ICN
-
DCA
17h 44m
1 stop
United Airlines Logo
8:00 am - 3:25 pm
DCA
-
ICN
18h 25m
1 stop
$698United Airlines
Fri, Oct 16 - Mon, Oct 26
Lufthansa Logo
11:30 am - 10:30 pm
ICN
-
DCA
24h 00m
1 stop
Lufthansa Logo
6:10 pm - 4:20 am
DCA
-
ICN
21h 10m
2 stops
$761Lufthansa
Fri, Aug 28 - Fri, Sep 11
United Airlines Logo
11:30 am - 7:09 pm
ICN
-
DCA
20h 39m
2 stops
United Airlines Logo
6:10 pm - 4:20 am
DCA
-
ICN
21h 10m
2 stops
$766United Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
11:30 am - 4:43 pm
ICN
-
DCA
18h 13m
1 stop
United Airlines Logo
3:30 pm - 4:20 am
DCA
-
ICN
23h 50m
2 stops
$767United Airlines
Fri, Aug 28 - Mon, Aug 31
United Airlines Logo
5:15 pm - 9:59 pm
ICN
-
DCA
17h 44m
1 stop
United Airlines Logo
7:00 am - 3:25 pm
DCA
-
ICN
19h 25m
1 stop
$775United Airlines
Mon, Oct 12 - Mon, Oct 26
Air Canada Logo
5:45 pm - 12:00 pm
ICN
-
DCA
31h 15m
2 stops
Air Canada Logo
12:55 pm - 4:10 pm
DCA
-
ICN
38h 15m
2 stops
$800Air Canada
Fri, Oct 16 - Mon, Oct 26
Air Canada Logo
5:45 pm - 12:00 pm
ICN
-
DCA
31h 15m
2 stops
Air Canada Logo
12:40 pm - 4:05 pm
DCA
-
ICN
38h 25m
2 stops
$803Air Canada
Wed, Sep 30 - Sun, Oct 4
Air Canada Logo
6:55 pm - 9:59 pm
ICN
-
DCA
41h 04m
2 stops
Air Canada Logo
12:55 pm - 5:10 pm
DCA
-
ICN
38h 15m
2 stops
$804Air Canada
Thu, Dec 17 - Tue, Feb 23

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Air Canada flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport

Our best Air Canada deals on Incheon Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
Air Canada
Oct 16
ICN5:45 pmIncheon Intl
31h 15m
2 stops
DCA12:00 pmWashington, D.C. Reagan-National
Oct 26
DCA12:55 pmWashington, D.C. Reagan-National
38h 15m
2 stops
ICN4:10 pmIncheon Intl
$800
Air Canada
Sep 30
ICN5:45 pmIncheon Intl
31h 15m
2 stops
DCA12:00 pmWashington, D.C. Reagan-National
Oct 4
DCA12:40 pmWashington, D.C. Reagan-National
38h 25m
2 stops
ICN4:05 pmIncheon Intl
$803
Air Canada
Dec 17
ICN6:55 pmIncheon Intl
41h 04m
2 stops
DCA9:59 pmWashington, D.C. Reagan-National
Feb 23
DCA12:55 pmWashington, D.C. Reagan-National
38h 15m
2 stops
ICN5:10 pmIncheon Intl
$804

Philippine Airlines flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport

Our best Philippine Airlines deals on Incheon Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
Philippine Airlines
Nov 13
ICN7:30 amIncheon Intl
51h 14m
2 stops
DCA8:44 pmWashington, D.C. Reagan-National
Nov 18
DCA8:35 amWashington, D.C. Reagan-National
31h 30m
2 stops
ICN6:05 amIncheon Intl
$1,056
Philippine Airlines
Aug 28
ICN8:30 pmIncheon Intl
37h 25m
2 stops
DCA8:55 pmWashington, D.C. Reagan-National
Sep 11
DCA5:35 pmWashington, D.C. Reagan-National
36h 40m
2 stops
ICN7:15 pmIncheon Intl
$1,112

momondo Fare Finder

 
Customize your flight search to find flights from Incheon Intl Airport 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 July 11, 2026.
Use the filters below to find and compare flights from Incheon Intl Airport 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

Mon 11/9

12:45 pm-6:52 pm

2 stops20h 07m

Washington, D.C. Reagan-National

Tue 11/10

8:00 pm-4:25 pm

1 stop30h 25m

$688

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 10/16

5:15 pm-9:59 pm

1 stop17h 44m

Washington, D.C. Reagan-National

Mon 10/26

3:30 pm-4:40 am

2 stops24h 10m

$690
Quickest round-trip

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 10/16

5:15 pm-9:59 pm

1 stop17h 44m

Washington, D.C. Reagan-National

Mon 10/26

8:00 am-3:25 pm

1 stop18h 25m

$698

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 8/28

11:30 am-10:30 pm

1 stop24h 00m

Washington, D.C. Reagan-National

Fri 9/11

6:10 pm-4:20 am

2 stops21h 10m

$761

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 8/28

11:30 am-7:09 pm

2 stops20h 39m

Washington, D.C. Reagan-National

Mon 8/31

6:10 pm-4:20 am

2 stops21h 10m

$766

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 8/28

11:30 am-4:43 pm

1 stop18h 13m

Washington, D.C. Reagan-National

Mon 8/31

3:30 pm-4:20 am

2 stops23h 50m

$767

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 10/12

5:15 pm-9:59 pm

1 stop17h 44m

Washington, D.C. Reagan-National

Mon 10/26

7:00 am-3:25 pm

1 stop19h 25m

$775

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 10/16

5:45 pm-12:00 pm

2 stops31h 15m

Washington, D.C. Reagan-National

Mon 10/26

12:55 pm-4:10 pm

2 stops38h 15m

$800

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/30

5:45 pm-12:00 pm

2 stops31h 15m

Washington, D.C. Reagan-National

Sun 10/4

12:40 pm-4:05 pm

2 stops38h 25m

$803

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 12/17

6:55 pm-9:59 pm

2 stops41h 04m

Washington, D.C. Reagan-National

Tue 2/23

12:55 pm-5:10 pm

2 stops38h 15m

$804

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 Incheon Intl Airport 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 Incheon Intl Airport to Washington, D.C. Reagan-National Airport flights?

You could potentially save up to 9% on your flight if you consider stops on a Incheon Intl Airport to Washington, D.C. Reagan-National Airport flight.

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

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

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

Fastest flight time

17h 44m

Direct flights

None
The fastest flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport takes 17h 44m
There are no direct flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport. There are no popular flight routes from Incheon Intl Airport to Washington, D.C. Reagan-National Airport.
Search flight deals

Frequently asked questions about flying from Incheon Intl Airport to Washington, D.C. Reagan-National Airport

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

    Incheon Intl and Washington, D.C. Reagan-National are 6952.5 mi apart from one another. Flights usually cover this in 17h 44m, depending on flying conditions and air traffic around both airports.

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

    Prices for flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport were last updated today.

  • How old do you have to be to fly from Incheon Intl Airport 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 Incheon Intl Airport 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 required for your trip to Washington, D.C. Reagan-National Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Reagan-National Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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
Arlington
Gettysburg
Waldorf
Laurel
Woodbridge
Fredericksburg
Gaithersburg
Linthicum Heights
Rockville
Colonial Beach
Towson
Manassas
Silver Spring
Tysons
Springfield
Fairfax
Bethesda
Edgewood

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

Flights from Seoul to Washington, D.C. with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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