How far is Portsmouth, NH, from Fort Smith, AR?
The distance between Fort Smith (Fort Smith Regional Airport) and Portsmouth (Portsmouth International Airport at Pease) is 1366 miles / 2198 kilometers / 1187 nautical miles.
The driving distance from Fort Smith (FSM) to Portsmouth (PSM) is 1652 miles / 2658 kilometers, and travel time by car is about 31 hours 2 minutes.
Fort Smith Regional Airport – Portsmouth International Airport at Pease
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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)- 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 Fort Smith to Portsmouth?
The estimated flight time from Fort Smith Regional Airport to Portsmouth International Airport at Pease is 3 hours and 5 minutes.
What is the time difference between Fort Smith and Portsmouth?
Flight carbon footprint between Fort Smith Regional Airport (FSM) and Portsmouth International Airport at Pease (PSM)
On average, flying from Fort Smith to Portsmouth 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 Fort Smith to Portsmouth
See the map of the shortest flight path between Fort Smith Regional Airport (FSM) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | 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 |
| Destination | 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 |