How far is Watertown, NY, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Watertown (Watertown International Airport) is 269 miles / 432 kilometers / 233 nautical miles.
The driving distance from Portsmouth (PSM) to Watertown (ART) is 389 miles / 626 kilometers, and travel time by car is about 8 hours 6 minutes.
Portsmouth International Airport at Pease – Watertown International Airport
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Distance from Portsmouth to Watertown
There are several ways to calculate the distance from Portsmouth to Watertown. Here are two standard methods:
Vincenty's formula (applied above)- 268.557 miles
- 432.201 kilometers
- 233.370 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- 267.883 miles
- 431.116 kilometers
- 232.784 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 Watertown?
The estimated flight time from Portsmouth International Airport at Pease to Watertown International Airport is 1 hour and 0 minutes.
What is the time difference between Portsmouth and Watertown?
There is no time difference between Portsmouth and Watertown.
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Watertown International Airport (ART)
On average, flying from Portsmouth to Watertown generates about 65 kg of CO2 per passenger, and 65 kilograms equals 142 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 Watertown
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Watertown International Airport (ART).
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 | Watertown International Airport |
|---|---|
| City: | Watertown, NY |
| Country: | United States |
| IATA Code: | ART |
| ICAO Code: | KART |
| Coordinates: | 43°59′30″N, 76°1′18″W |