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Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $509

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 9/6. 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 Washington, D.C. Reagan-National Airport to Seoul

Cheap round-trip flights

Logo
6:59 am - 6:45 pmDCA-ICN
22h 46m2 stops
Logo
6:00 pm - 10:20 amICN-DCA
29h 20m1 stop
$955
Find Deal
Mon, Sep 8 - Fri, Sep 12
Logo
8:40 pm - 6:45 pmDCA-ICN
33h 05m3 stops
Logo
6:00 pm - 3:51 pmICN-DCA
34h 51m1 stop
$962
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
8:40 pm - 6:45 pmDCA-ICN
33h 05m2 stops
Logo
6:00 pm - 3:51 pmICN-DCA
34h 51m1 stop
$965
Find Deal
Sun, Sep 14 - Sun, Sep 21
Logo
8:40 pm - 9:35 pmDCA-ICN
35h 55m2 stops
Logo
6:00 pm - 6:04 pmICN-DCA
37h 04m2 stops
$966
Find Deal
Fri, Sep 19 - Sun, Sep 28
Logo
8:40 pm - 9:35 pmDCA-ICN
35h 55m3 stops
Logo
6:00 pm - 6:04 pmICN-DCA
37h 04m2 stops
$969
Find Deal
Fri, Sep 19 - Sun, Sep 28
Air Canada Logo
9:40 am - 6:25 pmDCA-ICN
18h 45m1 stop
Air Canada Logo
6:55 pm - 10:26 amICN-DCA
29h 31m2 stops
$979Air Canada
Find Deal
Wed, Jan 7 - Wed, Feb 11
Air Canada Logo
9:40 am - 6:25 pmDCA-ICN
18h 45m1 stop
Air Canada Logo
8:10 pm - 8:40 pmICN-DCA
38h 30m1 stop
$997Air Canada
Find Deal
Wed, Jan 7 - Thu, Feb 12
Air Canada Logo
4:35 pm - 4:05 pmDCA-ICN
34h 30m3 stops
Air Canada Logo
6:55 pm - 12:19 pmICN-DCA
31h 24m2 stops
$999Air Canada
Find Deal
Mon, Sep 8 - Tue, Nov 11
Air Canada Logo
6:59 am - 6:25 pmDCA-ICN
21h 26m1 stop
Air Canada Logo
6:55 pm - 8:55 amICN-DCA
28h 00m2 stops
$1,061Air Canada
Find Deal
Fri, Dec 12 - Sat, Dec 27
Hawaiian Airlines Logo
8:00 am - 6:35 pmDCA-ICN
21h 35m1 stop
Hawaiian Airlines Logo
8:35 pm - 9:59 pmICN-DCA
39h 24m1 stop
$1,110Hawaiian Airlines
Find Deal
Wed, Oct 22 - Sat, Nov 8

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

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight tickets
Air Canada
Jan 7
DCA9:40 amWashington, D.C. Reagan-National
18h 45m
1 stop
ICN6:25 pmIncheon Intl
Feb 11
ICN6:55 pmIncheon Intl
29h 31m
2 stops
DCA10:26 amWashington, D.C. Reagan-National
$979
Find similar
Air Canada
Jan 7
DCA9:40 amWashington, D.C. Reagan-National
18h 45m
1 stop
ICN6:25 pmIncheon Intl
Feb 12
ICN8:10 pmIncheon Intl
38h 30m
1 stop
DCA8:40 pmWashington, D.C. Reagan-National
$997
Find similar
Air Canada
Sep 8
DCA4:35 pmWashington, D.C. Reagan-National
34h 30m
3 stops
ICN4:05 pmIncheon Intl
Nov 11
ICN6:55 pmIncheon Intl
31h 24m
2 stops
DCA12:19 pmWashington, D.C. Reagan-National
$999
Find similar

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
Aug 5
DCA6:00 amWashington, D.C. Reagan-National
26h 10m
2 stops
ICN9:10 pmIncheon Intl
Sep 16
ICN10:10 amIncheon Intl
37h 18m
2 stops
DCA10:28 amWashington, D.C. Reagan-National
$1,268
Find similar
Cathay Pacific
Aug 3
DCA7:06 pmWashington, D.C. Reagan-National
28h 34m
2 stops
ICN12:40 pmIncheon Intl
Aug 29
ICN1:40 pmIncheon Intl
48h 36m
2 stops
DCA1:16 amWashington, D.C. Reagan-National
$1,326
Find similar
Cathay Pacific
Aug 4
DCA7:32 pmWashington, D.C. Reagan-National
29h 33m
2 stops
ICN2:05 pmIncheon Intl
Aug 22
ICN8:05 pmIncheon Intl
42h 11m
2 stops
DCA1:16 amWashington, D.C. Reagan-National
$1,356
Find similar

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 31, 2025.
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

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/8

6:59 am-6:45 pm

2 stops22h 46m

Incheon Intl

Fri 9/12

6:00 pm-10:20 am

1 stop29h 20m

$955

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 9/14

8:40 pm-6:45 pm

3 stops33h 05m

Incheon Intl

Sun 9/21

6:00 pm-3:51 pm

1 stop34h 51m

$962

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sun 9/14

8:40 pm-6:45 pm

2 stops33h 05m

Incheon Intl

Sun 9/21

6:00 pm-3:51 pm

1 stop34h 51m

$965

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 9/19

8:40 pm-9:35 pm

2 stops35h 55m

Incheon Intl

Sun 9/28

6:00 pm-6:04 pm

2 stops37h 04m

$966

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 9/19

8:40 pm-9:35 pm

3 stops35h 55m

Incheon Intl

Sun 9/28

6:00 pm-6:04 pm

2 stops37h 04m

$969

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 1/7

9:40 am-6:25 pm

1 stop18h 45m

Incheon Intl

Wed 2/11

6:55 pm-10:26 am

2 stops29h 31m

$979

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 1/7

9:40 am-6:25 pm

1 stop18h 45m

Incheon Intl

Thu 2/12

8:10 pm-8:40 pm

1 stop38h 30m

$997

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Mon 9/8

4:35 pm-4:05 pm

3 stops34h 30m

Incheon Intl

Tue 11/11

6:55 pm-12:19 pm

2 stops31h 24m

$999

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 12/12

6:59 am-6:25 pm

1 stop21h 26m

Incheon Intl

Sat 12/27

6:55 pm-8:55 am

2 stops28h 00m

$1,061

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 10/22

8:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Sat 11/8

8:35 pm-9:59 pm

1 stop39h 24m

$1,110

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 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 January. Flight prices, which tend to average around $875, 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 January, then departing from Washington, D.C. Reagan-National Airport during the month February is also very affordable. Most momondo users find prices during this month for around $902.

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 Wednesday when prices can be found for as low as $1,483. If your travel schedule is flexible, try to avoid departing on a Thursday because tickets tend to average around $1,654. 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?

In the evening 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 $1,169. Flying to Incheon Intl Airport in the evening is an ideal time because this is during off-peak travel hours. If you have a flexible travel schedule, then try to avoid flying at noon when prices are $1,698 on average. Flights to Incheon Intl Airport from Washington, D.C. Reagan-National Airport at noon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to Incheon Intl Airport?

You are more likely to see cheaper flights to Incheon Intl Airport from Washington, D.C. Reagan-National Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Incheon Intl Airport for around $1,359 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Incheon Intl Airport from Washington, D.C. Reagan-National Airport for as low as $947 on momondo.

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

You could potentially save up to 20% 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

Best Price Found

$509

Fastest flight time

17h 35m

Direct flights

None
The best one-way flight to Incheon Intl Airport from Washington, D.C. Reagan-National Airport in the past 72 hours is $509. The best round-trip flight deal from Washington, D.C. Reagan-National Airport to Incheon Intl Airport found on momondo in the last 72 hours is $955.
The fastest flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport takes 17h 35m
There are no direct flights from Washington, D.C. Reagan-National Airport to Incheon Intl Airport. Popular non-direct route for this connection is Washington, D.C. Reagan-National Airport - Incheon Intl Airport.
Search flight deals

  • 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 17h 35m 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 $867Free CancellationRating
7.1
9,851 reviews
Search Air Canada flights
American AirlinesPriceFrom $877Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
Korean AirPriceFrom $1,527Free CancellationRating
8.4
1,121 reviews
Search Korean Air flights

Traveling to a place near Seoul?

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Suwon
Seongnam
Daejeon
Anyang

Why use momondo?

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

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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