How far is Fort Smith, AR, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Fort Smith (Fort Smith Regional Airport) is 1366 miles / 2198 kilometers / 1187 nautical miles.
The driving distance from Portsmouth (PSM) to Fort Smith (FSM) is 1650 miles / 2656 kilometers, and travel time by car is about 31 hours 0 minutes.
Portsmouth International Airport at Pease – Fort Smith Regional Airport
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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)- 1365.847 miles
- 2198.118 kilometers
- 1186.889 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- 1363.342 miles
- 2194.087 kilometers
- 1184.712 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 Regional Airport is 3 hours and 5 minutes.
What is the time difference between Portsmouth and Fort Smith?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Fort Smith Regional Airport (FSM)
On average, flying from Portsmouth to Fort Smith generates about 171 kg of CO2 per passenger, and 171 kilograms equals 377 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 Regional Airport (FSM).
Airport information
| Origin | Portsmouth International Airport at Pease |
|---|---|
| City: | Portsmouth, NH |
| Country: | United States  |
| IATA Code: | PSM |
| ICAO Code: | KPSM |
| Coordinates: | 43°4′40″N, 70°49′23″W |
| Destination | Fort Smith Regional Airport |
|---|---|
| City: | Fort Smith, AR |
| Country: | United States |
| IATA Code: | FSM |
| ICAO Code: | KFSM |
| Coordinates: | 35°20′11″N, 94°22′2″W |