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How far is Portsmouth, NH, from Miles City, MT?

The distance between Miles City (Miles City Airport) and Portsmouth (Portsmouth International Airport at Pease) is 1726 miles / 2778 kilometers / 1500 nautical miles.

The driving distance from Miles City (MLS) to Portsmouth (PSM) is 2053 miles / 3304 kilometers, and travel time by car is about 39 hours 6 minutes.

Miles City Airport – Portsmouth International Airport at Pease

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1726
Miles
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2778
Kilometers
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1500
Nautical miles

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Distance from Miles City to Portsmouth

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

Vincenty's formula (applied above)
  • 1726.224 miles
  • 2778.088 kilometers
  • 1500.047 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
  • 1721.539 miles
  • 2770.548 kilometers
  • 1495.976 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 Miles City to Portsmouth?

The estimated flight time from Miles City Airport to Portsmouth International Airport at Pease is 3 hours and 46 minutes.

Flight carbon footprint between Miles City Airport (MLS) and Portsmouth International Airport at Pease (PSM)

On average, flying from Miles City to Portsmouth generates about 195 kg of CO2 per passenger, and 195 kilograms equals 429 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from Miles City to Portsmouth

See the map of the shortest flight path between Miles City Airport (MLS) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin Miles City Airport
City: Miles City, MT
Country: United States Flag of United States
IATA Code: MLS
ICAO Code: KMLS
Coordinates: 46°25′40″N, 105°53′9″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