Distance From Pui To Shan (Castle Peak) Helipad to Ronald Reagan Washington National Airport

The distance from Pui To Shan (Castle Peak) Helipad () to Ronald Reagan Washington National Airport (DCA) is 8146 miles or 13110 kilometers or 7074 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 Tuen Mun ( Hong Kong ) to Washington ( United States )?

A one-way nonstop (direct) flight between Tuen Mun and Washington takes around 18 hours 43 minutes.

Estimated flight time from Pui To Shan (Castle Peak) Helipad, Tuen Mun, Hong Kong to Ronald Reagan Washington National Airport, Washington, United States is 18 hours 43 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 • - DCA

Kilometers		13110 km
Statute Miles		8146 miles
Nautical Miles		7074 nm
Avg. Time of Flight		18 hours 43 minutes

Pui To Shan (Castle Peak) Helipad to Ronald Reagan Washington National Airport Flight Route Map - to DCA Flight Path

Location of Pui To Shan (Castle Peak) Helipad & Ronald Reagan Washington National Airport is given below.
Click the map to view Tuen Mun to Washington nonstop flight path and travel direction.

Click to see flight route on Google Map between Tuen Mun, Hong Kong and Washington, United States. .

Nonstop flight route between Tuen Mun, Hong Kong and Washington, United States.

Time Difference Between the Airports • - DCA

Time difference between Tuen Mun (Hong Kong) and Washington (United States) is 12 Hours.
Washington time is 12 Hours behind Tuen Mun.

Location	Local Time
Tuen Mun (Hong Kong)	2026-09-19, 06:09:21 HKT
Washington (United States)	2026-09-18, 18:09:21 EDT

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

Pui To Shan (Castle Peak) Helipad ( / ) Tuen Mun, Hong Kong

Destination

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