Distance From Kamphaeng Saen Airport to Ronald Reagan Washington National Airport, KDT - DCA Distance

The distance from Kamphaeng Saen Airport (KDT) to Ronald Reagan Washington National Airport (DCA) is 8773 miles or 14118 kilometers or 7618 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 Nakhon Pathom ( Thailand ) to Washington ( United States )?

A one-way nonstop (direct) flight between Nakhon Pathom and Washington takes around 20 hours 10 minutes.

Estimated flight time from Kamphaeng Saen Airport, Nakhon Pathom, Thailand to Ronald Reagan Washington National Airport, Washington, United States is 20 hours 10 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 • KDT - DCA

Kilometers		14118 km
Statute Miles		8773 miles
Nautical Miles		7618 nm
Avg. Time of Flight		20 hours 10 minutes

Kamphaeng Saen Airport to Ronald Reagan Washington National Airport Flight Route Map - KDT to DCA Flight Path

Location of Kamphaeng Saen Airport & Ronald Reagan Washington National Airport is given below.
Click the map to view Nakhon Pathom to Washington nonstop flight path and travel direction.

Click to see flight route on Google Map between Nakhon Pathom, Thailand and Washington, United States. .

Nonstop flight route between Nakhon Pathom, Thailand and Washington, United States.

Time Difference Between the Airports • KDT - DCA

Time difference between Nakhon Pathom (Thailand) and Washington (United States) is 12 Hours.
Washington time is 12 Hours behind Nakhon Pathom.

Location	Local Time
Nakhon Pathom (Thailand)	2025-12-15, 15:27:25 +07
Washington (United States)	2025-12-15, 03:27:25 EST

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

Kamphaeng Saen Airport (KDT / VTBK) Nakhon Pathom, Thailand

Destination

Ronald Reagan Washington National Airport (DCA / KDCA) Washington, United States