$530 Find Cheap Flights from Seoul Incheon Airport to Washington, D.C. - Compare and Save

Among airlines operating Incheon Intl Airport to Washington, D.C. flights:

• 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 Incheon Intl Airport and Washington, D.C.. The airlines offering nonstop flights on this route include:

• Korean Air
• AIR PREMIA

Flights from Incheon Intl Airport to Washington, D.C. usually depart from Incheon Intl (ICN) and may arrive at several airports in Washington, D.C. area, including Washington, D.C. Reagan-National (DCA) and Washington, D.C. Dulles Intl (IAD).

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 Incheon Intl Airport to Washington, D.C.:

• 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 $671 round-trip via Dallas/Fort Worth (DFW), compared to $1,343 for nonstop.

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

• San Francisco (SFO) - 41% of one-stop connections
• Dallas/Fort Worth (DFW) - 16% of one-stop connections
• Toronto Pearson Intl (YYZ) - 16% of one-stop connections
• Seattle/Tacoma Intl (SEA) - 11% of one-stop connections

San Francisco (SFO) handles the largest share of one-stop connections on this route.

Yes. Being flexible with your travel dates can save you up to 47% on the Incheon Intl Airport to Washington, D.C. route. Tuesday is the cheapest departure day at $776 round-trip on average, while Saturday is the most expensive at $1,460, a difference of $684. KAYAK's flexible dates feature shows options up to 3 days before and after your selected dates, making it easier to compare nearby fares.

A flight is considered delayed when it departs 15 minutes or more after its scheduled time. This is the standard used by the US Department of Transportation and most airline industry reporting. On the Incheon Intl Airport to Washington, D.C. route, 11% of flights were delayed in the past 3 months, with delays averaging 1 hour 20 minutes.

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

Some of the most popular sights in Washington, D.C. are Walter E. Washington Convention Center, National Mall and Capital One Arena. These are among the most viewed places in Washington, D.C. on KAYAK.

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

• Earliest: departs at 10:00 am and lands at 11:38 pm
• Latest: departs at 9:05 pm and lands at 10:43 am.

The flight takes about 13h 38m.

Last-minute fares on this route - booked within 2 weeks of departure - run 5% above the route average of $1,162. Book 20 weeks before departure for the lowest fares.

A nonstop flight from Incheon Intl Airport to Washington, D.C. takes 13h 38m, covering 6,949 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 Incheon Intl Airport to Washington, D.C. are currently higher than usual. Average one-way flight prices are about $936, which is 7% above the typical average for this route.

Morning flights have the fewest delays on this route. Delays tend to pile up throughout the day as one late flight pushes the next, so earlier departures are usually more reliable.

Flying via Atlanta Hartsfield-Jackson (ATL) gives the shortest average 1-stop total travel time at 18h 23m, compared with 18h 36m via Toronto Pearson Intl (YYZ) and 19h 28m via Boston Logan Intl (BOS).

Washington, D.C. is 13 hours behind Incheon Intl Airport (Eastern Time vs Korean Time). Plan for the time shift when scheduling connections or first-day activities.

Since Washington, D.C. is served by multiple airports, car rental options and rates can vary depending on which one you fly into.
Near Washington, D.C. Reagan-National Airport (DCA) — daily rates from around $23:

• Sixt
• Dollar
• Thrifty
• Alamo
• Budget

Near Washington, D.C. Dulles Intl Airport (IAD) — daily rates from around $24:

• Dollar
• Budget
• Hertz
• Sixt
• Thrifty

Round-trip flights from Incheon Intl Airport to Washington, D.C. range from $787 to $1,547, with an average of $1,162 over the past 12 months. Anything below $787 counts as a good deal.