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How far is Islip, NY, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Islip (Long Island MacArthur Airport) is 196 miles / 316 kilometers / 171 nautical miles.

The driving distance from Portsmouth (PSM) to Islip (ISP) is 240 miles / 386 kilometers, and travel time by car is about 6 hours 3 minutes.

Portsmouth International Airport at Pease – Long Island MacArthur Airport

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196
Miles
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316
Kilometers
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171
Nautical miles

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Distance from Portsmouth to Islip

There are several ways to calculate the distance from Portsmouth to Islip. Here are two standard methods:

Vincenty's formula (applied above)
  • 196.419 miles
  • 316.106 kilometers
  • 170.684 nautical miles

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

Haversine formula
  • 196.376 miles
  • 316.037 kilometers
  • 170.646 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).

How long does it take to fly from Portsmouth to Islip?

The estimated flight time from Portsmouth International Airport at Pease to Long Island MacArthur Airport is 52 minutes.

What is the time difference between Portsmouth and Islip?

There is no time difference between Portsmouth and Islip.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Long Island MacArthur Airport (ISP)

On average, flying from Portsmouth to Islip generates about 54 kg of CO2 per passenger, and 54 kilograms equals 119 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Portsmouth to Islip

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Long Island MacArthur Airport (ISP).

Airport information

Origin Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W
Destination 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