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How far is Portsmouth, NH, from Missoula, MT?

The distance between Missoula (Missoula Montana Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2109 miles / 3394 kilometers / 1833 nautical miles.

The driving distance from Missoula (MSO) to Portsmouth (PSM) is 2520 miles / 4056 kilometers, and travel time by car is about 47 hours 4 minutes.

Missoula Montana Airport – Portsmouth International Airport at Pease

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2109
Miles
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3394
Kilometers
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1833
Nautical miles

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Distance from Missoula to Portsmouth

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

Vincenty's formula (applied above)
  • 2109.227 miles
  • 3394.472 kilometers
  • 1832.868 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
  • 2103.458 miles
  • 3385.188 kilometers
  • 1827.855 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 Missoula to Portsmouth?

The estimated flight time from Missoula Montana Airport to Portsmouth International Airport at Pease is 4 hours and 29 minutes.

Flight carbon footprint between Missoula Montana Airport (MSO) and Portsmouth International Airport at Pease (PSM)

On average, flying from Missoula to Portsmouth generates about 230 kg of CO2 per passenger, and 230 kilograms equals 507 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Missoula to Portsmouth

See the map of the shortest flight path between Missoula Montana Airport (MSO) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Missoula Montana Airport
City: Missoula, MT
Country: United States Flag of United States
IATA Code: MSO
ICAO Code: KMSO
Coordinates: 46°54′58″N, 114°5′27″W
Destination 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