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How far is Montgomery, AL, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Montgomery (Montgomery Regional Airport) is 1128 miles / 1816 kilometers / 980 nautical miles.

The driving distance from Portsmouth (PSM) to Montgomery (MGM) is 1320 miles / 2125 kilometers, and travel time by car is about 25 hours 15 minutes.

Portsmouth International Airport at Pease – Montgomery Regional Airport

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1128
Miles
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1816
Kilometers
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980
Nautical miles

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Distance from Portsmouth to Montgomery

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

Vincenty's formula (applied above)
  • 1128.274 miles
  • 1815.781 kilometers
  • 980.443 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
  • 1127.666 miles
  • 1814.802 kilometers
  • 979.915 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 Montgomery?

The estimated flight time from Portsmouth International Airport at Pease to Montgomery Regional Airport is 2 hours and 38 minutes.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Montgomery Regional Airport (MGM)

On average, flying from Portsmouth to Montgomery generates about 158 kg of CO2 per passenger, and 158 kilograms equals 349 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 Montgomery

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Montgomery Regional Airport (MGM).

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 Montgomery Regional Airport
City: Montgomery, AL
Country: United States Flag of United States
IATA Code: MGM
ICAO Code: KMGM
Coordinates: 32°18′2″N, 86°23′38″W