What is the flight distance between DCA and ISP?

Distance between Ronald Reagan National Airport (DCA) and Long Island MacArthur Airport (ISP) is 400 kilometers or 249 miles.

Distance From Ronald Reagan National Airport to Long Island MacArthur Airport (DCA - ISP Distance)

Q: How long is the flight from DCA to ISP?

Flight time from Ronald Reagan National Airport, Washington, United States to Long Island MacArthur Airport, Islip, United States is 0 hours 29 minutes under avarage conditions.

Q: What is the time difference between Washington, United States and Islip, United States?

Time difference between Washington (United States) and Islip (United States) is 0 Hours. It is currently 19:19 in Ronald Reagan National Airport (DCA) and 19:19 in Long Island MacArthur Airport (ISP).

The flight distance from Ronald Reagan National Airport (DCA) to Long Island MacArthur Airport (ISP) is 249 miles. This is equivalent to 400 kilometers or 216 nautical miles. The distance shown below is the straight line distance (may be called as flying or air distance) or direct flight distance between airports.

400 kilometers is the distance from Ronald Reagan National Airport, United States to Long Island MacArthur Airport, United States.

Flight Duration between Washington, United States and Islip, United States

Estimated flight time from Ronald Reagan National Airport, Washington, United States to Long Island MacArthur Airport, Islip, United States is 0 hours 29 minutes under avarage conditions. The flight time calculator assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/hr or 434 knots. Your actual flying time may vary depending on wind speeds or weather conditions.

Time Difference Between the Airports • DCA - ISP

Time difference between Washington (United States) and Islip (United States) is 0 Hours.
Current local time in Washington is 2026-05-14, 19:19:46 EDT and time in Islip is 2026-05-14, 19:19:46 EDT.

Ronald Reagan National Airport to Long Island MacArthur Airport Flight Route Map - DCA to ISP Flight Path

Location of Ronald Reagan National Airport & Long Island MacArthur Airport is given below.
Click the map to view Washington to Islip nonstop flight path and travel direction.

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

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

Ronald Reagan National Airport
City:	Washington
Country:	United States
IATA Code:	DCA
ICAO Code:	KDCA
GPS Coordinates:	Latitude: N 38° 51' 7.5'' Longitude: W 77° 2' 15.8''
Current time:	2026-05-14, 19:19:46 EDT
Current weather:	Ronald Reagan National Airport 15 day weather forecast

Long Island MacArthur Airport
City:	Islip
Country:	United States
IATA Code:	ISP
ICAO Code:	KISP
GPS Coordinates:	Latitude: N 40° 47' 42.9'' Longitude: W 73° 6' 0.8''
Current time:	2026-05-14, 19:19:46 EDT
Current weather:	Long Island MacArthur Airport 15 day weather forecast
Flights: