Distance From STO 5 Heliport to Ronald Reagan Washington National Airport

The distance from STO 5 Heliport () to Ronald Reagan Washington National Airport (DCA) is 1600 miles or 2574 kilometers or 1389 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 Marathon ( United States ) to Washington ( United States )?

A one-way nonstop (direct) flight between Marathon and Washington takes around 3 hours 40 minutes.

Estimated flight time from STO 5 Heliport, Marathon, United States to Ronald Reagan Washington National Airport, Washington, United States is 3 hours 40 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		2574 km
Statute Miles		1600 miles
Nautical Miles		1389 nm
Avg. Time of Flight		3 hours 40 minutes

STO 5 Heliport to Ronald Reagan Washington National Airport Flight Route Map - to DCA Flight Path

Location of STO 5 Heliport & Ronald Reagan Washington National Airport is given below.
Click the map to view Marathon to Washington nonstop flight path and travel direction.

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

Nonstop flight route between Marathon, United States and Washington, United States.

Time Difference Between the Airports • - DCA

Time difference between Marathon (United States) and Washington (United States) is 3 Hours.
Washington time is 3 Hours ahead of Marathon.

Location	Local Time
Marathon (United States)	2026-03-21, 21:01:30 MST
Washington (United States)	2026-03-22, 00:01:30 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

STO 5 Heliport ( / 8TX5) Marathon, United States

Destination

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