Distance From Washington County Memorial Airport to Gimpo International Airport

The distance from Washington County Memorial Airport () to Gimpo International Airport (GMP) is 6417 miles or 10327 kilometers or 5573 nautical miles.

The distance shown below is direct flight distance between airports. Straight-line distance does not account for the surface between the two points. It is the distance a bird or airplane would travel between the two points when flying above the surface. The straight line distance is the direct route between two points, regardless of whether or not there are roads that connect them.

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How long does it take to travel from Washington ( United States ) to Seoul ( South Korea )?

A one-way nonstop (direct) flight between Washington and Seoul takes around 14 hours 45 minutes.

Estimated flight time from Washington County Memorial Airport, Washington, United States to Gimpo International Airport, Seoul, South Korea is 14 hours 45 minutes under avarage conditions. Your actual flying time may vary depending on wind direction/speed or weather conditions. This calculation does not include the departure and landing times of the aircraft. In addition, it does not cover the person identity check, ticket check-in and baggage collection times at the airport.

Travel Distance Between the Airports • - GMP

Kilometers		10327 km
Statute Miles		6417 miles
Nautical Miles		5573 nm
Avg. Time of Flight		14 hours 45 minutes

Washington County Memorial Airport to Gimpo International Airport Flight Route Map - to GMP Flight Path

Location of Washington County Memorial Airport & Gimpo International Airport is given below.
Click the map to view Washington to Seoul nonstop flight path and travel direction.

Click to see flight route on Google Map between Washington, United States and Seoul, South Korea. .

Nonstop flight route between Washington, United States and Seoul, South Korea.

Time Difference Between the Airports • - GMP

Time difference between Washington (United States) and Seoul (South Korea) is 15 Hours.
Seoul time is 15 Hours ahead of Washington.

Location	Local Time
Washington (United States)	2026-03-21, 23:01:04 MDT
Seoul (South Korea)	2026-03-22, 14:01:04 KST

Why should you arrive 3 hours before international flight? Flyers who are traveling to an international destination should arrive at the airport earlier than domestic flyers. This is because international flights can have additional check-in requirements, like passport verification, that need to be completed before you receive your boarding pass.

Origin

Washington County Memorial Airport ( / KK38) Washington, United States

Destination

Gimpo International Airport (GMP / RKSS) Seoul, South Korea