Calculations with different methods
- 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).
Estimated flight time from Ronald Reagan Washington National Airport (DCA) to Long Island MacArthur Airport (ISP) is 58 minutes.
Time difference and current local times
There is no time difference between Washington D.C. and Islip.
Carbon dioxide emissions
Estimated CO2 emissions per passenger is 60 kg (132 pounds).
Washington D.C. to Islip flight map.
Frequent Flyer Miles Calculator
Washington D.C. (DCA) → Islip (ISP).