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How far is Harrisburg, PA, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Harrisburg (Harrisburg International Airport) is 366 miles / 589 kilometers / 318 nautical miles.

The driving distance from Portsmouth (PSM) to Harrisburg (MDT) is 451 miles / 726 kilometers, and travel time by car is about 9 hours 4 minutes.

Portsmouth International Airport at Pease – Harrisburg International Airport

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366
Miles
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589
Kilometers
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318
Nautical miles

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Distance from Portsmouth to Harrisburg

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

Vincenty's formula (applied above)
  • 366.199 miles
  • 589.341 kilometers
  • 318.219 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
  • 365.656 miles
  • 588.467 kilometers
  • 317.747 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 Harrisburg?

The estimated flight time from Portsmouth International Airport at Pease to Harrisburg International Airport is 1 hour and 11 minutes.

What is the time difference between Portsmouth and Harrisburg?

There is no time difference between Portsmouth and Harrisburg.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Harrisburg International Airport (MDT)

On average, flying from Portsmouth to Harrisburg generates about 79 kg of CO2 per passenger, and 79 kilograms equals 174 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 Harrisburg

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Harrisburg International Airport (MDT).

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 Harrisburg International Airport
City: Harrisburg, PA
Country: United States Flag of United States
IATA Code: MDT
ICAO Code: KMDT
Coordinates: 40°11′36″N, 76°45′48″W