Distance From Johnston Seaplane Base to Washington Dulles International Airport

The distance from Johnston Seaplane Base () to Washington Dulles International Airport (IAD) is 1063 miles or 1711 kilometers or 923 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 Perham ( United States ) to Dulles ( United States )?

A one-way nonstop (direct) flight between Perham and Dulles takes around 2 hours 26 minutes.

Estimated flight time from Johnston Seaplane Base, Perham, United States to Washington Dulles International Airport, Dulles, United States is 2 hours 26 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 • - IAD

Kilometers		1711 km
Statute Miles		1063 miles
Nautical Miles		923 nm
Avg. Time of Flight		2 hours 26 minutes

Johnston Seaplane Base to Washington Dulles International Airport Flight Route Map - to IAD Flight Path

Location of Johnston Seaplane Base & Washington Dulles International Airport is given below.
Click the map to view Perham to Dulles nonstop flight path and travel direction.

Click to see flight route on Google Map between Perham, United States and Dulles, United States. .

Nonstop flight route between Perham, United States and Dulles, United States.

Time Difference Between the Airports • - IAD

Time difference between Perham (United States) and Dulles (United States) is 1 Hours.
Dulles time is 1 Hours ahead of Perham.

Location	Local Time
Perham (United States)	2026-05-07, 07:30:52 CDT
Dulles (United States)	2026-05-07, 08:30:52 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

Johnston Seaplane Base ( / MY93) Perham, United States

Destination

Washington Dulles International Airport (IAD / KIAD) Dulles, United States