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Cheap flights from Incheon Intl Airport to Washington, D.C. from $361

This is the cheapest round-trip 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 11/7. 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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Find the cheapest flights from Incheon Intl Airport to Washington, D.C.

Cheap round-trip flights

Air Canada Logo
6:55 pm - 12:19 pmICN-DCA
55h 24m2 stops
Air Canada Logo
6:59 am - 5:10 pmDCA-ICN
44h 11m2 stops
$361Air Canada
Find Deal
Fri, Nov 7 - Fri, Nov 21
Air Canada Logo
5:55 pm - 12:19 pmICN-DCA
31h 24m2 stops
Air Canada Logo
11:05 am - 5:10 pmDCA-ICN
40h 05m2 stops
$452Air Canada
Find Deal
Wed, Oct 29 - Wed, Nov 5
Air Canada Logo
6:55 pm - 10:26 amICN-DCA
29h 31m2 stops
Air Canada Logo
4:10 pm - 5:10 pmDCA-ICN
35h 00m2 stops
$471Air Canada
Find Deal
Wed, Nov 19 - Mon, Feb 9
Air Canada Logo
6:55 pm - 3:31 pmICN-DCA
34h 36m2 stops
Air Canada Logo
6:50 pm - 5:10 pmDCA-ICN
32h 20m2 stops
$477Air Canada
Find Deal
Fri, Nov 7 - Fri, Nov 21
United Airlines Logo
12:45 pm - 11:59 pmICN-DCA
25h 14m2 stops
United Airlines Logo
5:50 pm - 4:15 pmDCA-ICN
32h 25m1 stop
$503United Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
United Airlines Logo
12:45 pm - 9:43 pmICN-DCA
22h 58m1 stop
United Airlines Logo
5:50 pm - 5:40 amDCA-ICN
21h 50m1 stop
$512United Airlines
Find Deal
Tue, Nov 18 - Sun, Feb 15
American Airlines Logo
5:45 pm - 11:00 pmICN-DCA
18h 15m1 stop
American Airlines Logo
9:15 pm - 3:30 pmDCA-ICN
29h 15m2 stops
$575American Airlines
Find Deal
Wed, Oct 8 - Wed, Oct 22
American Airlines Logo
6:50 pm - 11:28 amICN-DCA
30h 38m2 stops
American Airlines Logo
7:45 pm - 4:45 pmDCA-ICN
31h 00m2 stops
$577American Airlines
Find Deal
Thu, Feb 19 - Mon, Feb 23
Alaska Airlines Logo
9:25 pm - 5:58 pmICN-DCA
34h 33m2 stops
Alaska Airlines Logo
9:30 am - 6:35 pmDCA-ICN
67h 05m2 stops
$662Alaska Airlines
Find Deal
Fri, Nov 14 - Mon, Feb 9
Alaska Airlines Logo
9:25 pm - 8:00 pmICN-DCA
36h 35m2 stops
Alaska Airlines Logo
8:00 am - 6:35 pmDCA-ICN
20h 35m1 stop
$677Alaska Airlines
Find Deal
Mon, Nov 17 - Thu, Dec 25

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

Our best American Airlines deals on Incheon Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
American Airlines
Sep 21
ICN5:25 pmIncheon Intl
27h 05m
2 stops
DCA7:30 amWashington, D.C. Reagan-National
Sep 24
DCA5:00 amWashington, D.C. Reagan-National
21h 30m
1 stop
ICN3:30 pmIncheon Intl
$492
Find similar
American Airlines
Sep 21
ICN5:25 pmIncheon Intl
28h 41m
1 stop
DCA9:06 amWashington, D.C. Reagan-National
Sep 24
DCA6:45 amWashington, D.C. Reagan-National
19h 45m
1 stop
ICN3:30 pmIncheon Intl
$501
Find similar
American Airlines
Oct 8
ICN5:45 pmIncheon Intl
18h 15m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
Oct 22
DCA9:15 pmWashington, D.C. Reagan-National
29h 15m
2 stops
ICN3:30 pmIncheon Intl
$575
Find similar

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

Our best United Airlines deals on Incheon Intl Airport to Washington, D.C. Reagan-National Airport flight tickets
United Airlines
Feb 19
ICN12:45 pmIncheon Intl
25h 14m
2 stops
DCA11:59 pmWashington, D.C. Reagan-National
Feb 23
DCA5:50 pmWashington, D.C. Reagan-National
32h 25m
1 stop
ICN4:15 pmIncheon Intl
$503
Find similar
United Airlines
Sep 24
ICN4:50 pmIncheon Intl
17h 47m
1 stop
DCA9:37 pmWashington, D.C. Reagan-National
Oct 11
DCA7:00 pmWashington, D.C. Reagan-National
20h 20m
1 stop
ICN4:20 amIncheon Intl
$505
Find similar
United Airlines
Nov 18
ICN12:45 pmIncheon Intl
22h 58m
1 stop
DCA9:43 pmWashington, D.C. Reagan-National
Feb 15
DCA5:50 pmWashington, D.C. Reagan-National
21h 50m
1 stop
ICN5:40 amIncheon Intl
$512
Find similar

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 September 17, 2025.
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

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 11/7

6:55 pm-12:19 pm

2 stops55h 24m

Washington, D.C. Reagan-National

Fri 11/21

6:59 am-5:10 pm

2 stops44h 11m

$361

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/29

5:55 pm-12:19 pm

2 stops31h 24m

Washington, D.C. Reagan-National

Wed 11/5

11:05 am-5:10 pm

2 stops40h 05m

$452

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 11/19

6:55 pm-10:26 am

2 stops29h 31m

Washington, D.C. Reagan-National

Mon 2/9

4:10 pm-5:10 pm

2 stops35h 00m

$471

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 11/7

6:55 pm-3:31 pm

2 stops34h 36m

Washington, D.C. Reagan-National

Fri 11/21

6:50 pm-5:10 pm

2 stops32h 20m

$477

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 2/19

12:45 pm-11:59 pm

2 stops25h 14m

Washington, D.C. Reagan-National

Mon 2/23

5:50 pm-4:15 pm

1 stop32h 25m

$503

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Tue 11/18

12:45 pm-9:43 pm

1 stop22h 58m

Washington, D.C. Reagan-National

Sun 2/15

5:50 pm-5:40 am

1 stop21h 50m

$512

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/8

5:45 pm-11:00 pm

1 stop18h 15m

Washington, D.C. Reagan-National

Wed 10/22

9:15 pm-3:30 pm

2 stops29h 15m

$575

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 2/19

6:50 pm-11:28 am

2 stops30h 38m

Washington, D.C. Reagan-National

Mon 2/23

7:45 pm-4:45 pm

2 stops31h 00m

$577

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 11/14

9:25 pm-5:58 pm

2 stops34h 33m

Washington, D.C. Reagan-National

Mon 2/9

9:30 am-6:35 pm

2 stops67h 05m

$662

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 11/17

9:25 pm-8:00 pm

2 stops36h 35m

Washington, D.C. Reagan-National

Thu 12/25

8:00 am-6:35 pm

1 stop20h 35m

$677

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 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

What is the cheapest month to fly to Washington, D.C. Reagan-National Airport?

The month of September is, on average, the cheapest month to fly to Washington, D.C. Reagan-National Airport from Incheon Intl Airport, with most prices found around $606. If you aren’t able to travel to Washington, D.C. Reagan-National Airport during the month of September, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $625.

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

You could potentially save up to 15% 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

Direct flights

None
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.
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  • 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 36m, 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 many operators does momondo search for flights from Incheon Intl Airport to Washington, D.C. Reagan-National Airport?

  • 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.

  • What is the most popular airline from Incheon Intl Airport to Washington, D.C. Reagan-National Airport?

Best airlines flying from Incheon Intl Airport to Washington, D.C. Reagan-National Airport

Compare and see reviews for airlines that fly from Incheon Intl Airport to Washington, D.C. Reagan-National Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $688Free CancellationRating
7.1
10,000 reviews
Search Air Canada flights

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

Book flights to Washington, D.C. if you plan to visit one of these locations
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Gettysburg
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Fredericksburg
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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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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 simply researching potential flights to Washington, D.C., momondo offers a useful price alert feature which will track prices for flights to Washington, D.C. from Seoul and alert you when they change.

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