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How far is Portsmouth, NH, from Fort Smith?

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

The driving distance from Fort Smith (YSM) to Portsmouth (PSM) is 3093 miles / 4977 kilometers, and travel time by car is about 64 hours 35 minutes.

Fort Smith Airport – Portsmouth International Airport at Pease

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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 Fort Smith to Portsmouth

There are several ways to calculate the distance from Fort Smith to Portsmouth. 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 Fort Smith to Portsmouth?

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

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

On average, flying from Fort Smith to Portsmouth 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 Fort Smith to Portsmouth

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

Airport information

Origin 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
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