$650 Cheap Flights from Washington (DCA) to Seoul (ICN)

View $650 flight on Sat, Nov 14, 2026Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)

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Cheap Flights from Washington to Seoul (DCA-ICN)

Prices were available within the past 7 days and start at $650 for one-way flights and $1,133 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Mon, Sep 7 - Mon, Sep 14
DCA
Washington
ICN
Seoul
$1,133 Roundtrip, found 4 days ago
$1,133
Roundtrip
found 4 days ago
Select Alaska Airlines flight, departing Mon, Sep 7 from Washington to Seoul, returning Mon, Sep 14, priced at $1,133 found 4 days ago
Air Canada
Thu, Apr 16 - Thu, Apr 23
DCA
Washington
ICN
Seoul
$1,135 Roundtrip, found 3 days ago
$1,135
Roundtrip
found 3 days ago
Select Air Canada flight, departing Thu, Apr 16 from Washington to Seoul, returning Thu, Apr 23, priced at $1,135 found 3 days ago
Air Canada
Thu, Sep 3 - Wed, Sep 9
DCA
Washington
ICN
Seoul
$1,138 Roundtrip, found 1 day ago
$1,138
Roundtrip
found 1 day ago
Select Air Canada flight, departing Thu, Sep 3 from Washington to Seoul, returning Wed, Sep 9, priced at $1,138 found 1 day ago
Air Canada
Tue, Oct 6 - Mon, Nov 2
DCA
Washington
ICN
Seoul
$1,141 Roundtrip, found 1 day ago
$1,141
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 6 from Washington to Seoul, returning Mon, Nov 2, priced at $1,141 found 1 day ago
Air Canada
Mon, May 11 - Thu, Jul 30
DCA
Washington
ICN
Seoul
$1,143 Roundtrip, found 22 hours ago
$1,143
Roundtrip
found 22 hours ago
Select Air Canada flight, departing Mon, May 11 from Washington to Seoul, returning Thu, Jul 30, priced at $1,143 found 22 hours ago
Air Canada
Tue, Oct 6 - Mon, Nov 2
DCA
Washington
ICN
Seoul
$1,146 Roundtrip, found 1 day ago
$1,146
Roundtrip
found 1 day ago
Select Air Canada flight, departing Tue, Oct 6 from Washington to Seoul, returning Mon, Nov 2, priced at $1,146 found 1 day ago
Air Canada
Thu, Oct 1 - Tue, Oct 20
DCA
Washington
ICN
Seoul
$1,148 Roundtrip, found 5 days ago
$1,148
Roundtrip
found 5 days ago
Select Air Canada flight, departing Thu, Oct 1 from Washington to Seoul, returning Tue, Oct 20, priced at $1,148 found 5 days ago
Cathay Pacific
Fri, Sep 4 - Wed, Sep 9
DCA
Washington
ICN
Seoul
$1,275 Roundtrip, found 1 day ago
$1,275
Roundtrip
found 1 day ago
Select Cathay Pacific flight, departing Fri, Sep 4 from Washington to Seoul, returning Wed, Sep 9, priced at $1,275 found 1 day ago
American Airlines
Tue, Apr 14 - Wed, Apr 22
DCA
Washington
ICN
Seoul
$1,329 Roundtrip, found 5 days ago
$1,329
Roundtrip
found 5 days ago
Select American Airlines flight, departing Tue, Apr 14 from Washington to Seoul, returning Wed, Apr 22, priced at $1,329 found 5 days ago
Hawaiian Airlines
Wed, Mar 18 - Mon, Mar 30
DCA
Washington
ICN
Seoul
$1,545 Roundtrip, found 2 days ago
$1,545
Roundtrip
found 2 days ago
Select Hawaiian Airlines flight, departing Wed, Mar 18 from Washington to Seoul, returning Mon, Mar 30, priced at $1,545 found 2 days ago

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Alternative airports near Seoul

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Gimpo Intl. GMP. Closest option available. Average driving time to city center is 20 minutes. Flights from $2,096
GMP
Gimpo Intl.
Closest
Average driving time to city center20 min
Flights from $2,096

Find the cheapest month to fly from Washington (DCA) to Seoul (ICN)

February is typically the cheapest month to fly

From $875 - $1,616 per traveler.

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN) cost?
Get a cheap one-way flight from $650 or cheap return flight from $1,133 from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight deals on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
September is the cheapest month to fly from DCA to ICN. Traveling during quieter months is often the key to landing a great deal.
Which airlines fly direct from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
There are no direct flights from Washington, DC (DCA-Ronald Reagan Washington National) to Incheon Intl. Airport (ICN). However, you'll find other airports that have nonstop flights. Begin your journey at Washington Dulles Intl. Airport (IAD) and head straight to Seoul without layovers.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
Use the filter tool on Expedia to compare airlines and find the cheapest carrier that'll take you from DCA to ICN. Then, sort your results by "Price (lowest to highest)" to pick up a good deal.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and select either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to ICN?
You'll usually find Tuesday the quietest day for flights, while Fridays are often the busiest.* However this can change from season to season and during peak travel times or public holidays.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
To reach Incheon Intl. Airport (ICN) without delays, book a flight that leaves from Ronald Reagan Washington National Airport (DCA) before 3 PM. The likelihood of cancellations is 22% higher, on average, for departures after this hour.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN) last-minute?
Last-minute bookings from DCA to ICN are generally more expensive. For the lowest rates, start searching for flights as soon as possible. That said, if you're flexible with your travel plans, you may find a cheap fare right before your journey.
Is it cheaper to book a DCA to ICN flight and hotel package?
Compared with arranging hotels and flights separately, booking a DCA to ICN flight and hotel package with Expedia could lead to significant savings. Better yet, having it all in one place will take the stress out of travel planning. Simply pick your flights and choose from our extensive range of hotels, then personalize your trip with other add-ons like car rentals and activities.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Incheon Intl. Airport (ICN)?
It's generally possible to reschedule or cancel your DCA to ICN flight. However, if it's been more than 24 hours since booking, additional fees may apply. Refer to your airline's policies in your itinerary to see what changes are possible and whether any costs are involved. You'll also find more information on our Customer Service portal.

Travel information

Origin airport
Ronald Reagan Washington National
Destination airport
Incheon Intl.
Airlines serving
Air Canada, Alaska Airlines, All Nippon Airways, American Airlines, Cathay Pacific, Delta, Finnair, Korean Air, United
Roundtrip price
$1,133
Distance
6956 mi

Book with confidence

Washington to Seoul Flights

The cheapest times to fly from Washington to Seoul

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Washington to Seoul are during the month of September. You can find some of the cheapest flights from Washington to Seoul with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Seoul

Sunday is one of the best days to book for cheap flights from Washington to Seoul: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Washington to Seoul

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Washington to Seoul in 2026. You can also book with separate airlines for your outbound and return journeys, from $650 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Washington to Seoul flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Washington to Seoul airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Washington to Seoul Flights

*Flight schedules are subject to change.

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