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Cheap flights from Incheon Intl Airport to Washington, D.C. from $632

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 6/4. 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

Enter your travel dates to find the best prices.
Multiple Airlines Logo
11:50 pm - 9:59 pm
ICN
-
DCA
35h 09m
2 stops
Multiple Airlines Logo
9:30 am - 10:00 pm
DCA
-
ICN
46h 30m
2 stops
$1,280Multiple Airlines
Wed, Oct 21 - Sun, Nov 1
Multiple Airlines Logo
11:50 pm - 9:59 pm
ICN
-
DCA
35h 09m
2 stops
Multiple Airlines Logo
6:57 pm - 9:50 am
DCA
-
ICN
49h 53m
2 stops
$1,399Multiple Airlines
Wed, Sep 16 - Sat, Oct 10
Multiple Airlines Logo
12:35 pm - 8:00 pm
ICN
-
DCA
44h 25m
2 stops
Multiple Airlines Logo
5:04 pm - 7:25 am
DCA
-
ICN
48h 21m
2 stops
$1,419Multiple Airlines
Wed, Oct 28 - Mon, Nov 9
Multiple Airlines Logo
12:35 pm - 8:00 pm
ICN
-
DCA
44h 25m
2 stops
Multiple Airlines Logo
9:30 am - 10:00 pm
DCA
-
ICN
46h 30m
2 stops
$1,451Multiple Airlines
Wed, Oct 28 - Mon, Nov 9
Multiple Airlines Logo
11:50 pm - 9:59 pm
ICN
-
DCA
35h 09m
2 stops
Multiple Airlines Logo
9:30 am - 10:20 pm
DCA
-
ICN
47h 50m
2 stops
$1,468Multiple Airlines
Fri, Sep 18 - Sun, Oct 11
Multiple Airlines Logo
7:35 pm - 4:19 pm
ICN
-
DCA
33h 44m
1 stop
Multiple Airlines Logo
7:00 am - 8:10 pm
DCA
-
ICN
24h 10m
2 stops
$1,507Multiple Airlines
Fri, May 29 - Wed, Jul 15
United Airlines Logo
5:30 pm - 10:31 pm
ICN
-
DCA
18h 01m
1 stop
United Airlines Logo
4:07 pm - 5:40 am
DCA
-
ICN
23h 33m
2 stops
$1,508United Airlines
Wed, Oct 28 - Mon, Nov 9
Air Canada Logo
5:45 pm - 12:00 pm
ICN
-
DCA
55h 15m
2 stops
Air Canada Logo
12:55 pm - 4:10 pm
DCA
-
ICN
38h 15m
2 stops
$1,518Air Canada
Thu, Oct 22 - Mon, Oct 26
Air Canada Logo
5:45 pm - 12:00 pm
ICN
-
DCA
55h 15m
2 stops
Air Canada Logo
12:55 pm - 4:10 pm
DCA
-
ICN
38h 15m
2 stops
$1,519Air Canada
Thu, Oct 22 - Mon, Oct 26
Multiple Airlines Logo
8:00 am - 12:00 pm
ICN
-
DCA
41h 00m
3 stops
Multiple Airlines Logo
8:40 pm - 6:45 pm
DCA
-
ICN
33h 05m
3 stops
$1,520Multiple Airlines
Mon, Jul 6 - Tue, Jul 21

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
May 15
ICN5:45 pmIncheon Intl
34h 54m
2 stops
DCA3:39 pmWashington, D.C. Reagan-National
May 24
DCA6:55 pmWashington, D.C. Reagan-National
56h 10m
2 stops
ICN4:05 pmIncheon Intl
$1,486
Air Canada
Oct 22
ICN5:45 pmIncheon Intl
55h 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
$1,518
Air Canada
Oct 22
ICN5:45 pmIncheon Intl
55h 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
$1,519

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
Oct 28
ICN5:30 pmIncheon Intl
18h 01m
1 stop
DCA10:31 pmWashington, D.C. Reagan-National
Nov 9
DCA4:07 pmWashington, D.C. Reagan-National
23h 33m
2 stops
ICN5:40 amIncheon Intl
$1,508
United Airlines
May 29
ICN11:30 amIncheon Intl
21h 18m
2 stops
DCA7:48 pmWashington, D.C. Reagan-National
Jul 22
DCA5:59 pmWashington, D.C. Reagan-National
21h 21m
1 stop
ICN4:20 amIncheon Intl
$1,602
United Airlines
Oct 21
ICN4:50 pmIncheon Intl
18h 03m
1 stop
DCA9:53 pmWashington, D.C. Reagan-National
Oct 23
DCA6:00 amWashington, D.C. Reagan-National
20h 20m
1 stop
ICN3:20 pmIncheon Intl
$1,626

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 May 7, 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

Wed 10/21

11:50 pm-9:59 pm

2 stops35h 09m

Washington, D.C. Reagan-National

Sun 11/1

9:30 am-10:00 pm

2 stops46h 30m

$1,280

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 9/16

11:50 pm-9:59 pm

2 stops35h 09m

Washington, D.C. Reagan-National

Sat 10/10

6:57 pm-9:50 am

2 stops49h 53m

$1,399

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/28

12:35 pm-8:00 pm

2 stops44h 25m

Washington, D.C. Reagan-National

Mon 11/9

5:04 pm-7:25 am

2 stops48h 21m

$1,419

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/28

12:35 pm-8:00 pm

2 stops44h 25m

Washington, D.C. Reagan-National

Mon 11/9

9:30 am-10:00 pm

2 stops46h 30m

$1,451

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 9/18

11:50 pm-9:59 pm

2 stops35h 09m

Washington, D.C. Reagan-National

Sun 10/11

9:30 am-10:20 pm

2 stops47h 50m

$1,468

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Fri 5/29

7:35 pm-4:19 pm

1 stop33h 44m

Washington, D.C. Reagan-National

Wed 7/15

7:00 am-8:10 pm

2 stops24h 10m

$1,507
Quickest round-trip

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Wed 10/28

5:30 pm-10:31 pm

1 stop18h 01m

Washington, D.C. Reagan-National

Mon 11/9

4:07 pm-5:40 am

2 stops23h 33m

$1,508

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 10/22

5:45 pm-12:00 pm

2 stops55h 15m

Washington, D.C. Reagan-National

Mon 10/26

12:55 pm-4:10 pm

2 stops38h 15m

$1,518

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Thu 10/22

5:45 pm-12:00 pm

2 stops55h 15m

Washington, D.C. Reagan-National

Mon 10/26

12:55 pm-4:10 pm

2 stops38h 15m

$1,519

IncheonWashington, D.C.

ICN - DCA

ICNDCA

Incheon Intl

Mon 7/6

8:00 am-12:00 pm

3 stops41h 00m

Washington, D.C. Reagan-National

Tue 7/21

8:40 pm-6:45 pm

3 stops33h 05m

$1,520

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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 20% 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

19h 08m

Direct flights

None
The fastest flight from Incheon Intl Airport to Washington, D.C. Reagan-National Airport takes 19h 08m
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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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 19h 08m, 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
Gettysburg
Arlington
Waldorf
Woodbridge
Laurel
Colonial Beach
Gaithersburg
Towson
Fredericksburg
Silver Spring
Rockville
Manassas
Linthicum Heights
Tysons
Bethesda
Springfield
Fairfax
College Park

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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.

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

momondo helps you find the best flight between Seoul and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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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