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Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $491

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Seoul departing on 10/11. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Washington, D.C. Reagan-National Airport to Seoul

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
6:00 pm - 8:10 pm
DCA
-
ICN
37h 10m
2 stops
Multiple Airlines Logo
7:15 pm - 5:59 pm
ICN
-
DCA
35h 44m
1 stop
$1,079Multiple Airlines
Fri, Aug 21 - Mon, Aug 31
Multiple Airlines Logo
6:59 pm - 9:40 pm
DCA
-
ICN
37h 41m
1 stop
Multiple Airlines Logo
7:15 pm - 12:49 pm
ICN
-
DCA
30h 34m
2 stops
$1,082Multiple Airlines
Tue, Sep 22 - Wed, Sep 30
Multiple Airlines Logo
7:00 am - 9:40 pm
DCA
-
ICN
25h 40m
2 stops
Multiple Airlines Logo
7:15 pm - 5:59 pm
ICN
-
DCA
35h 44m
1 stop
$1,089Multiple Airlines
Wed, Aug 19 - Fri, Aug 28
Multiple Airlines Logo
7:00 am - 9:40 pm
DCA
-
ICN
25h 40m
2 stops
Multiple Airlines Logo
7:45 pm - 5:57 pm
ICN
-
DCA
35h 12m
1 stop
$1,092Multiple Airlines
Mon, Sep 14 - Mon, Oct 26
Multiple Airlines Logo
6:59 pm - 9:40 pm
DCA
-
ICN
37h 41m
1 stop
Multiple Airlines Logo
7:45 pm - 5:56 pm
ICN
-
DCA
35h 11m
2 stops
$1,093Multiple Airlines
Thu, Oct 1 - Sat, Oct 31
Multiple Airlines Logo
6:00 pm - 9:40 pm
DCA
-
ICN
38h 40m
2 stops
Multiple Airlines Logo
7:15 pm - 5:59 pm
ICN
-
DCA
35h 44m
1 stop
$1,094Multiple Airlines
Sun, Sep 6 - Mon, Sep 21
Multiple Airlines Logo
1:59 pm - 9:40 pm
DCA
-
ICN
42h 41m
2 stops
Multiple Airlines Logo
7:45 pm - 5:57 pm
ICN
-
DCA
35h 12m
1 stop
$1,099Multiple Airlines
Thu, Sep 17 - Fri, Oct 30
Multiple Airlines Logo
7:00 am - 9:40 pm
DCA
-
ICN
25h 40m
2 stops
Multiple Airlines Logo
10:20 pm - 8:00 pm
ICN
-
DCA
34h 40m
1 stop
$1,100Multiple Airlines
Sun, Oct 11 - Fri, Oct 30
Multiple Airlines Logo
6:00 pm - 9:40 pm
DCA
-
ICN
38h 40m
2 stops
Multiple Airlines Logo
7:45 pm - 5:57 pm
ICN
-
DCA
35h 12m
1 stop
$1,101Multiple Airlines
Sat, Oct 17 - Fri, Oct 30
Multiple Airlines Logo
6:57 pm - 9:40 pm
DCA
-
ICN
37h 43m
1 stop
Multiple Airlines Logo
7:45 pm - 4:56 pm
ICN
-
DCA
34h 11m
2 stops
$1,102Multiple Airlines
Thu, Oct 22 - Fri, Oct 30

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Cathay Pacific flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport

Our best Cathay Pacific deals on Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight tickets
Cathay Pacific
Sep 9
DCA6:30 amWashington, D.C. Reagan-National
26h 55m
2 stops
ICN10:25 pmIncheon Intl
Sep 28
ICN8:00 amIncheon Intl
25h 06m
2 stops
DCA8:06 pmWashington, D.C. Reagan-National
$1,110
Cathay Pacific
Aug 4
DCA11:35 amWashington, D.C. Reagan-National
37h 30m
2 stops
ICN2:05 pmIncheon Intl
Aug 30
ICN8:00 amIncheon Intl
28h 58m
2 stops
DCA11:58 pmWashington, D.C. Reagan-National
$1,275
Cathay Pacific
Aug 3
DCA7:08 pmWashington, D.C. Reagan-National
38h 17m
2 stops
ICN10:25 pmIncheon Intl
Aug 26
ICN3:10 pmIncheon Intl
45h 48m
2 stops
DCA11:58 pmWashington, D.C. Reagan-National
$1,300

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight tickets
Delta
Jul 27
DCA4:00 pmWashington, D.C. Reagan-National
23h 00m
1 stop
ICN4:00 amIncheon Intl
Aug 19
ICN6:50 pmIncheon Intl
17h 58m
1 stop
DCA11:48 pmWashington, D.C. Reagan-National
$1,326
Delta
Aug 3
DCA6:30 pmWashington, D.C. Reagan-National
20h 30m
1 stop
ICN4:00 amIncheon Intl
Aug 7
ICN10:15 amIncheon Intl
21h 30m
1 stop
DCA6:45 pmWashington, D.C. Reagan-National
$1,376
Delta
Aug 3
DCA6:10 amWashington, D.C. Reagan-National
22h 10m
2 stops
ICN5:20 pmIncheon Intl
Aug 10
ICN7:30 pmIncheon Intl
27h 39m
1 stop
DCA10:09 amWashington, D.C. Reagan-National
$1,381

momondo Fare Finder

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

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 8/21

6:00 pm-8:10 pm

2 stops37h 10m

Incheon Intl

Mon 8/31

7:15 pm-5:59 pm

1 stop35h 44m

$1,079

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 9/22

6:59 pm-9:40 pm

1 stop37h 41m

Incheon Intl

Wed 9/30

7:15 pm-12:49 pm

2 stops30h 34m

$1,082

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 8/19

7:00 am-9:40 pm

2 stops25h 40m

Incheon Intl

Fri 8/28

7:15 pm-5:59 pm

1 stop35h 44m

$1,089

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/14

7:00 am-9:40 pm

2 stops25h 40m

Incheon Intl

Mon 10/26

7:45 pm-5:57 pm

1 stop35h 12m

$1,092

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 10/1

6:59 pm-9:40 pm

1 stop37h 41m

Incheon Intl

Sat 10/31

7:45 pm-5:56 pm

2 stops35h 11m

$1,093

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 9/6

6:00 pm-9:40 pm

2 stops38h 40m

Incheon Intl

Mon 9/21

7:15 pm-5:59 pm

1 stop35h 44m

$1,094

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 9/17

1:59 pm-9:40 pm

2 stops42h 41m

Incheon Intl

Fri 10/30

7:45 pm-5:57 pm

1 stop35h 12m

$1,099
Quickest round-trip

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 10/11

7:00 am-9:40 pm

2 stops25h 40m

Incheon Intl

Fri 10/30

10:20 pm-8:00 pm

1 stop34h 40m

$1,100

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 10/17

6:00 pm-9:40 pm

2 stops38h 40m

Incheon Intl

Fri 10/30

7:45 pm-5:57 pm

1 stop35h 12m

$1,101

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Thu 10/22

6:57 pm-9:40 pm

1 stop37h 43m

Incheon Intl

Fri 10/30

7:45 pm-4:56 pm

2 stops34h 11m

$1,102

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 Seoul from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Incheon 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 typical price of a round-trip flight between Washington, D.C. Reagan-National Airport and Incheon Intl Airport?

What is the cheapest month to fly to Incheon Intl Airport?

The cheapest month to fly to Incheon Intl Airport from Washington, D.C. Reagan-National Airport is in February. Flight prices, which tend to average around $1,137, are often lower during this time because this is during the off-season. If you are unable to visit Incheon Intl Airport during the month of February, then departing from Washington, D.C. Reagan-National Airport during the month September is also very affordable. Most momondo users find prices during this month for around $1,148.

What is the cheapest day to depart on your flight to Incheon Intl Airport?

The cheapest day to depart from Washington, D.C. Reagan-National Airport to Incheon Intl Airport is on a Tuesday when prices can be found for as low as $1,250. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,505. These prices are subject to change though, so be sure to set up a Price Alert for flights to Incheon Intl Airport.

What is the cheapest time of day to depart on your flight to Incheon Intl Airport?

At noon is the cheapest time of day to fly from Washington, D.C. Reagan-National Airport to Incheon Intl Airport when you can find flight prices for as low as $1,282. Flying to Incheon Intl Airport at noon is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying in the morning when prices are $1,367 on average. Flights to Incheon Intl Airport from Washington, D.C. Reagan-National Airport in the morning are generally more expensive because this time of day is more convenient for travelers’ schedules.

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

You could potentially save up to 5% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight.

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

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Incheon Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Incheon Intl Airport (DCA to ICN) flight deals and tips

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

Fastest flight time

19h 10m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport takes 19h 10m
There are no direct flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Incheon Intl Airport.
Search flight deals

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

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

    Washington, D.C. Reagan-National and Incheon Intl are 6952.5 mi apart from one another. Typically, this will take 19h 10m by plane in normal conditions.

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

    Prices for flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport refresh daily.

  • How many operators does momondo search for flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport?

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Incheon Intl Airport.

  • What documentation or ID do you need to fly to Incheon Intl Airport?

    The necessary travel and health documents for your Incheon Intl Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

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

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

Compare and see reviews for airlines that fly from Washington, D.C. Reagan-National Airport to Incheon Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
Air CanadaPriceFrom $1,137Free CancellationRating
7.1
11,371 reviews
Search Air Canada flights

Traveling to a place near Seoul?

Book flights to Seoul if you plan to visit one of these locations
Daejeon
Suwon
Seongnam
Anyang

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To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Seoul from Washington, D.C..

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

Yes. All flights to Seoul from Washington, D.C. on momondo can be compared and filtered by various policies on offer, including flexible booking.

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

Once all potential Washington, D.C. to Seoul 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 Washington, D.C. to Seoul right now. Can momondo alert me if prices change?

Yes. momondo can track prices for Washington, D.C. to Seoul flights and alert you when they change. Perform a search to set up the price alert. All that is required is a valid email address.

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