Air Miles Calculator

Distance between Islip, NY (ISP) and Washington D.C. (DCA)

Distance from Long Island MacArthur Airport to Ronald Reagan Washington National Airport is 249 miles / 400 kilometers / 216 nautical miles.

Calculations with different methods

Vincenty's formula (applied above)
  • 248.650 miles
  • 400.164 kilometers
  • 216.071 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 248.318 miles
  • 399.630 kilometers
  • 215.783 nautical miles

The haversine formula calculates the distance between latitude/longitude points assuming a spherical earth (great-circle distance).

Flight duration

Estimated flight time from Long Island MacArthur Airport (ISP) to Ronald Reagan Washington National Airport (DCA) is 58 minutes.

Time difference and current local times

There is no time difference between Islip and Washington D.C..

Time Difference

Islip
Washington D.C.

Islip, NY

 EST

Washington D.C.

 EST

Airport information


A Long Island MacArthur Airport
City: Islip, NY
Country: United States Flag of United States
IATA Code: ISP
ICAO Code: KISP
Coordinates: 40°47′42″N, 73°6′0″W

B Ronald Reagan Washington National Airport
City: Washington D.C.
Country: United States Flag of United States
IATA Code: DCA
ICAO Code: KDCA
Coordinates: 38°51′7″N, 77°2′15″W

Map

Flight map from Islip to Washington D.C..

Frequent Flyer Miles Calculator

Islip (ISP) → Washington D.C. (DCA).

Elite level bonus (%):
Booking class bonus (%):
Air miles:
249
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
249

Round trip?