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How far is Fort Smith from Portsmouth, NH?

The distance between Portsmouth (Portsmouth International Airport at Pease) and Fort Smith (Fort Smith Airport) is 2074 miles / 3338 kilometers / 1802 nautical miles.

The driving distance from Portsmouth (PSM) to Fort Smith (YSM) is 3091 miles / 4975 kilometers, and travel time by car is about 64 hours 25 minutes.

Portsmouth International Airport at Pease – Fort Smith Airport

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2074
Miles
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3338
Kilometers
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1802
Nautical miles

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Distance from Portsmouth to Fort Smith

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

Vincenty's formula (applied above)
  • 2073.917 miles
  • 3337.647 kilometers
  • 1802.185 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
  • 2069.125 miles
  • 3329.934 kilometers
  • 1798.021 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 Fort Smith?

The estimated flight time from Portsmouth International Airport at Pease to Fort Smith Airport is 4 hours and 25 minutes.

Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Fort Smith Airport (YSM)

On average, flying from Portsmouth to Fort Smith generates about 226 kg of CO2 per passenger, and 226 kilograms equals 498 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 Fort Smith

See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Fort Smith Airport (YSM).

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 Fort Smith Airport
City: Fort Smith
Country: Canada Flag of Canada
IATA Code: YSM
ICAO Code: CYSM
Coordinates: 60°1′13″N, 111°57′43″W