Map of flight path and driving directions from Washington D.C. to Islip.
Shortest flight path between Ronald Reagan Washington National Airport (DCA) and Long Island MacArthur Airport (ISP).
How far is Islip from Washington D.C.?
There are several ways to calculate distances between Washington D.C. and Islip. Here are two common 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 – the shortest distance between two points).
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 59 kg (131 pounds).
Frequent Flyer Miles Calculator
Washington D.C. (DCA) → Islip (ISP).