Air Miles Calculator logo

How far is Alpena, MI, from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Alpena (Alpena County Regional Airport) is 648 miles / 1043 kilometers / 563 nautical miles.

The driving distance from Portsmouth (PSM) to Alpena (APN) is 954 miles / 1536 kilometers, and travel time by car is about 19 hours 5 minutes.

Portsmouth International Airport at Pease – Alpena County Regional Airport

Distance arrow
648
Miles
Distance arrow
1043
Kilometers
Distance arrow
563
Nautical miles

Search flights

Distance from Portsmouth to Alpena

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

Vincenty's formula (applied above)
  • 648.081 miles
  • 1042.985 kilometers
  • 563.167 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
  • 646.409 miles
  • 1040.295 kilometers
  • 561.714 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 Alpena?

The estimated flight time from Portsmouth International Airport at Pease to Alpena County Regional Airport is 1 hour and 43 minutes.

What is the time difference between Portsmouth and Alpena?

There is no time difference between Portsmouth and Alpena.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Alpena County Regional Airport (APN)

On average, flying from Portsmouth to Alpena generates about 119 kg of CO2 per passenger, and 119 kilograms equals 262 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 Alpena

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Alpena County Regional Airport (APN).

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 Alpena County Regional Airport
City: Alpena, MI
Country: United States Flag of United States
IATA Code: APN
ICAO Code: KAPN
Coordinates: 45°4′41″N, 83°33′37″W