How far is Westerly, RI, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Westerly (Westerly State Airport) is 129 miles / 208 kilometers / 112 nautical miles.
The driving distance from Portsmouth (PSM) to Westerly (WST) is 155 miles / 249 kilometers, and travel time by car is about 3 hours 26 minutes.
Portsmouth International Airport at Pease – Westerly State Airport
Search flights
Distance from Portsmouth to Westerly
There are several ways to calculate the distance from Portsmouth to Westerly. Here are two standard methods:
Vincenty's formula (applied above)- 129.451 miles
- 208.332 kilometers
- 112.490 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- 129.517 miles
- 208.437 kilometers
- 112.547 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 Westerly?
The estimated flight time from Portsmouth International Airport at Pease to Westerly State Airport is 44 minutes.
What is the time difference between Portsmouth and Westerly?
There is no time difference between Portsmouth and Westerly.
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Westerly State Airport (WST)
On average, flying from Portsmouth to Westerly generates about 44 kg of CO2 per passenger, and 44 kilograms equals 97 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 Westerly
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Westerly State Airport (WST).
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 | Westerly State Airport |
|---|---|
| City: | Westerly, RI |
| Country: | United States |
| IATA Code: | WST |
| ICAO Code: | KWST |
| Coordinates: | 41°20′58″N, 71°48′12″W |