$393 Find Cheap Flights from Washington, D.C. to Seoul - Compare and Save

The most crucial document you will need is a valid passport. Your passport should be valid for at least six months beyond your intended stay in South Korea. South Korea has visa-free arrangements with many countries, including the United States. U.S. citizens visiting South Korea for tourism or business purposes are generally allowed to stay for up to 90 days without a visa.

Korean Air offers special meal options such as vegetarian, vegan, gluten-free, and kosher. United Airlines also offer a range of special meals, including vegetarian, vegan, gluten-free, lactose-free, and diabetic-friendly options. Passengers can request these special meals in advance during the booking process or by contacting the airline directly.

JAL has a loyalty program called JAL Mileage Bank, where members can earn miles and use them to upgrade their seats, subject to availability and specific rules and conditions. Additionally, JAL offers the option of purchasing an upgrade to first class using cash. Depending on availability, this can be done at the time of booking or during check-in.

One popular method is to take the Airport Railroad Express (AREX), which provides both an Express Train and an All-Stop Train. The Express Train offers a non-stop journey to Seoul Station, a central transportation hub, in about 43 minutes. The All-Stop Train makes multiple stops along the way, taking approximately 53 minutes to reach Seoul Station. Both options offer plenty of seating and designated spaces for luggage storage.

Among airlines operating Washington, D.C. to Seoul flights:

• AIR PREMIA: offers extra legroom; offers free seat selection
• Korean Air: offers extra legroom; offers free seat selection
• Delta: offers extra legroom; offers free seat selection

Extra legroom and free seat selection availability depends on fare class and route.

2 airlines operate flights between Washington, D.C. and Seoul. The airlines offering nonstop flights on this route include:

• Korean Air
• AIR PREMIA

Flights from Washington, D.C. to Seoul may depart from several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD), with arrivals available at Seoul area airports such as Seoul Gimpo Intl (GMP) and Incheon Intl (ICN).

Here are some options for this route, based on selected ticket types and cabin classes:

• AIR PREMIA: a cabin bag and a checked bag in Economy Class
• Korean Air: a cabin bag and a checked bag in Economy Class
• Delta: a cabin bag and a checked bag in Economy Class

Bag allowance can vary by ticket type, cabin class, route and airline, so travelers should check the fare details before booking.

Four cabin classes are available on flights from Washington, D.C. to Seoul:

• Economy Class
• Premium Economy Class
• Business Class
• First Class

Prices vary by airline.

On this route, layover flights are cheaper than nonstop options on average. Layover fares average $977 round-trip via Beijing Capital (PEK), compared to $1,582 for nonstop.

One-stop flights from Washington, D.C. to Seoul most commonly connect through:

• Toronto Pearson Intl (YYZ) - 27% of one-stop connections
• Istanbul (IST) - 21% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 12% of one-stop connections
• Dallas/Fort Worth (DFW) - 11% of one-stop connections

Toronto Pearson Intl (YYZ) handles the largest share of one-stop connections on this route.

On the Washington, D.C. to Seoul route, being flexible with your departure day can save you up to 16%. Sunday is the cheapest day at $1,470 round-trip on average, while Saturday is the most expensive at $1,749: a $279 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

Afternoon is the busiest departure period on Washington, D.C. to Seoul flights, with 100% of flights leaving in that window. Morning departures account for 0%, evening flights for 0%, and night flights for 0%.

Some of the most popular sights in Seoul are Hongdae Area, Myeongdong Shopping Street and Seoul Station. These are among the most viewed places in Seoul on KAYAK.

These are the earliest and latest flight times available from Washington, D.C. to Seoul:

• Earliest: departs at 12:35 am and lands at 4:14 pm
• Latest: departs at 11:35 pm and lands at 3:14 pm.

The flight takes about 15h 39m.

Last-minute fares on this route - booked within 2 weeks of departure - run 15% above the route average of $1,547. Book 11 weeks before departure for the lowest fares.

A nonstop flight from Washington, D.C. to Seoul takes 15h 39m, covering 6,933 miles.

Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

One-way fares from Washington, D.C. to Seoul are currently lower than usual. Average one-way flight prices are about $494, which is 35% below the typical average for this route.

Flying via Montreal Pierre Elliott Trudeau Intl (YUL) gives the shortest average 1-stop total travel time at 17h 15m, compared with 18h 09m via Toronto Pearson Intl (YYZ) and 18h 14m via Atlanta Hartsfield-Jackson (ATL).

Seoul is 13 hours ahead of Washington, D.C. (Korean Time vs Eastern Time). Plan for the time shift when scheduling connections or first-day activities.

Since Seoul is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Incheon Intl Airport (ICN) — daily rates from around $12:

• WECAR
• Wheego
• Yesaway
• Alamo
• Enterprise Rent-A-Car

Near Seoul Gimpo Intl Airport (GMP) — daily rates from around $12:

• Yesaway
• Hi Rent
• Wheego
• Europcar
• Bella Jeju

Round-trip flights from Washington, D.C. to Seoul range from $1,220 to $1,800, with an average of $1,547 over the past 12 months. Anything below $1,220 counts as a good deal.