Latest deals
Insights
When to book
FAQs
Reviews
Price Alerts

Cheap flights from Washington, D.C. Reagan-National Airport to Seoul from $421

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 4/14. 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
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Price Alerts

Not ready to book? to track prices.
Search flight deals

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 - 3:50 pm
DCA
-
ICN
32h 50m
2 stops
Multiple Airlines Logo
6:00 pm - 5:59 pm
ICN
-
DCA
36h 59m
1 stop
$998Multiple Airlines
Fri, Apr 24 - Fri, May 8
Multiple Airlines Logo
6:00 pm - 3:50 pm
DCA
-
ICN
32h 50m
2 stops
Multiple Airlines Logo
6:00 pm - 5:59 pm
ICN
-
DCA
36h 59m
1 stop
$1,005Multiple Airlines
Fri, Apr 24 - Fri, May 8
Multiple Airlines Logo
9:59 am - 3:50 pm
DCA
-
ICN
40h 51m
1 stop
Multiple Airlines Logo
6:00 pm - 5:59 pm
ICN
-
DCA
36h 59m
1 stop
$1,024Multiple Airlines
Tue, Apr 21 - Mon, Apr 27
Multiple Airlines Logo
9:59 am - 3:50 pm
DCA
-
ICN
40h 51m
1 stop
Multiple Airlines Logo
6:00 pm - 4:59 pm
ICN
-
DCA
35h 59m
2 stops
$1,029Multiple Airlines
Sat, Apr 25 - Wed, May 6
Multiple Airlines Logo
8:00 am - 4:30 am
DCA
-
ICN
31h 30m
2 stops
Multiple Airlines Logo
1:00 pm - 8:00 pm
ICN
-
DCA
20h 00m
1 stop
$1,040Multiple Airlines
Wed, Apr 22 - Tue, Apr 28
Multiple Airlines Logo
9:59 am - 3:50 pm
DCA
-
ICN
40h 51m
1 stop
Multiple Airlines Logo
6:00 pm - 9:59 pm
ICN
-
DCA
40h 59m
2 stops
$1,050Multiple Airlines
Tue, Apr 14 - Mon, Apr 20
Multiple Airlines Logo
8:00 am - 4:30 am
DCA
-
ICN
31h 30m
2 stops
Multiple Airlines Logo
6:00 pm - 5:59 pm
ICN
-
DCA
36h 59m
1 stop
$1,056Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
8:00 am - 4:30 am
DCA
-
ICN
31h 30m
2 stops
Multiple Airlines Logo
6:00 pm - 5:59 pm
ICN
-
DCA
36h 59m
1 stop
$1,063Multiple Airlines
Wed, Apr 15 - Wed, Apr 22
Multiple Airlines Logo
9:59 am - 4:30 am
DCA
-
ICN
29h 31m
1 stop
Multiple Airlines Logo
6:00 pm - 4:59 pm
ICN
-
DCA
35h 59m
2 stops
$1,068Multiple Airlines
Wed, Apr 22 - Wed, Apr 29
Multiple Airlines Logo
8:00 am - 6:35 pm
DCA
-
ICN
21h 35m
1 stop
Multiple Airlines Logo
6:00 pm - 9:59 pm
ICN
-
DCA
40h 59m
2 stops
$1,079Multiple Airlines
Wed, Apr 15 - Mon, Apr 20

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

Our best Asiana Airlines deals on Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight tickets
Asiana Airlines
Apr 13
DCA9:40 amWashington, D.C. Reagan-National
18h 50m
1 stop
ICN5:30 pmIncheon Intl
Apr 27
ICN7:05 pmIncheon Intl
16h 38m
1 stop
DCA10:43 pmWashington, D.C. Reagan-National
$1,155
Asiana Airlines
Aug 16
DCA4:20 pmWashington, D.C. Reagan-National
35h 05m
1 stop
ICN4:25 pmIncheon Intl
Sep 8
ICN5:45 pmIncheon Intl
29h 35m
2 stops
DCA10:20 amWashington, D.C. Reagan-National
$1,173
Asiana Airlines
Apr 13
DCA9:40 amWashington, D.C. Reagan-National
18h 50m
1 stop
ICN5:30 pmIncheon Intl
Apr 29
ICN5:45 pmIncheon Intl
29h 34m
2 stops
DCA10:19 amWashington, D.C. Reagan-National
$1,178

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 24
DCA7:31 pmWashington, D.C. Reagan-National
39h 54m
2 stops
ICN12:25 amIncheon Intl
Sep 30
ICN8:05 pmIncheon Intl
37h 10m
2 stops
DCA8:15 pmWashington, D.C. Reagan-National
$1,175
Cathay Pacific
Mar 9
DCA11:57 amWashington, D.C. Reagan-National
36h 58m
2 stops
ICN1:55 pmIncheon Intl
Mar 16
ICN10:00 amIncheon Intl
43h 37m
2 stops
DCA4:37 pmWashington, D.C. Reagan-National
$1,375
Cathay Pacific
Mar 9
DCA11:57 amWashington, D.C. Reagan-National
44h 28m
2 stops
ICN9:25 pmIncheon Intl
Mar 16
ICN10:00 amIncheon Intl
45h 55m
2 stops
DCA6:55 pmWashington, D.C. Reagan-National
$1,422

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 March 2, 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

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 4/24

6:00 pm-3:50 pm

2 stops32h 50m

Incheon Intl

Fri 5/8

6:00 pm-5:59 pm

1 stop36h 59m

$998

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Fri 4/24

6:00 pm-3:50 pm

2 stops32h 50m

Incheon Intl

Fri 5/8

6:00 pm-5:59 pm

1 stop36h 59m

$1,005

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/21

9:59 am-3:50 pm

1 stop40h 51m

Incheon Intl

Mon 4/27

6:00 pm-5:59 pm

1 stop36h 59m

$1,024

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Sat 4/25

9:59 am-3:50 pm

1 stop40h 51m

Incheon Intl

Wed 5/6

6:00 pm-4:59 pm

2 stops35h 59m

$1,029

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/22

8:00 am-4:30 am

2 stops31h 30m

Incheon Intl

Tue 4/28

1:00 pm-8:00 pm

1 stop20h 00m

$1,040

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Tue 4/14

9:59 am-3:50 pm

1 stop40h 51m

Incheon Intl

Mon 4/20

6:00 pm-9:59 pm

2 stops40h 59m

$1,050

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/15

8:00 am-4:30 am

2 stops31h 30m

Incheon Intl

Wed 4/22

6:00 pm-5:59 pm

1 stop36h 59m

$1,056

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/15

8:00 am-4:30 am

2 stops31h 30m

Incheon Intl

Wed 4/22

6:00 pm-5:59 pm

1 stop36h 59m

$1,063

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/22

9:59 am-4:30 am

1 stop29h 31m

Incheon Intl

Wed 4/29

6:00 pm-4:59 pm

2 stops35h 59m

$1,068

Washington, D.C.Incheon

DCA - ICN

DCAICN

Washington, D.C. Reagan-National

Wed 4/15

8:00 am-6:35 pm

1 stop21h 35m

Incheon Intl

Mon 4/20

6:00 pm-9:59 pm

2 stops40h 59m

$1,079

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 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 August is also very affordable. Most momondo users find prices during this month for around $1,169.

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 $1,261. If your travel schedule is flexible, try to avoid departing on a Saturday because tickets tend to average around $1,517. 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 morning 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 $1,333. Flying to Incheon Intl Airport in the morning 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 $1,496 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.

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

You could potentially save up to 10% on your flight if you consider stops on a Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight.

How have Washington, D.C. Reagan-National Airport to Incheon Intl Airport flight prices changed over time?

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

17h 45m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Incheon Intl Airport takes 17h 45m
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

  • 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 45m 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 $1,138Free CancellationRating
7.1
10,762 reviews
Search Air Canada flights

Traveling to a place near Seoul?

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

An easier way to manage your Incheon Intl Airport trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
Start using Trips
Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.
1 adult
Wed 4/1
Wed 4/8
By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Seoul

Popular cities in South Korea

Popular flights according to clicks in the last 7 days on momondo
Flights to Seoul Gimpo Intl Airportfrom $757