Distance From Tainaigawa Dam Helipad to Ronald Reagan Washington National Airport

The distance from Tainaigawa Dam Helipad () to Ronald Reagan Washington National Airport (DCA) is 6644 miles or 10692 kilometers or 5770 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 Tainai ( Japan ) to Washington ( United States )?

A one-way nonstop (direct) flight between Tainai and Washington takes around 15 hours 16 minutes.

Estimated flight time from Tainaigawa Dam Helipad, Tainai, Japan to Ronald Reagan Washington National Airport, Washington, United States is 15 hours 16 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		10692 km
Statute Miles		6644 miles
Nautical Miles		5770 nm
Avg. Time of Flight		15 hours 16 minutes

Tainaigawa Dam Helipad to Ronald Reagan Washington National Airport Flight Route Map - to DCA Flight Path

Location of Tainaigawa Dam Helipad & Ronald Reagan Washington National Airport is given below.
Click the map to view Tainai to Washington nonstop flight path and travel direction.

Click to see flight route on Google Map between Tainai, Japan and Washington, United States. .

Nonstop flight route between Tainai, Japan and Washington, United States.

Time Difference Between the Airports • - DCA

Time difference between Tainai (Japan) and Washington (United States) is 13 Hours.
Washington time is 13 Hours behind Tainai.

Location	Local Time
Tainai (Japan)	2026-03-22, 19:42:47 JST
Washington (United States)	2026-03-22, 06:42:47 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

Tainaigawa Dam Helipad ( / ) Tainai, Japan

Destination

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