Distance From UN Aviation Heliport to Ronald Reagan Washington National Airport

The distance from UN Aviation Heliport () to Ronald Reagan Washington National Airport (DCA) is 4445 miles or 7153 kilometers or 3860 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 ( Sierra Leone ) to Washington ( United States )?

A one-way nonstop (direct) flight between and Washington takes around 10 hours 13 minutes.

Estimated flight time from UN Aviation Heliport, , Sierra Leone to Ronald Reagan Washington National Airport, Washington, United States is 10 hours 13 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		7153 km
Statute Miles		4445 miles
Nautical Miles		3860 nm
Avg. Time of Flight		10 hours 13 minutes

UN Aviation Heliport to Ronald Reagan Washington National Airport Flight Route Map - to DCA Flight Path

Location of UN Aviation Heliport & Ronald Reagan Washington National Airport is given below.
Click the map to view to Washington nonstop flight path and travel direction.

Click to see flight route on Google Map between , Sierra Leone and Washington, United States. .

Nonstop flight route between , Sierra Leone and Washington, United States.

Time Difference Between the Airports • - DCA

Time difference between (Sierra Leone) and Washington (United States) is 5 Hours.
Washington time is 5 Hours behind .

Location	Local Time
(Sierra Leone)	2025-12-16, 20:44:07 GMT
Washington (United States)	2025-12-16, 15:44:07 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

UN Aviation Heliport ( / ) , Sierra Leone

Destination

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