How far is Portsmouth, NH, from Watertown, NY?
The distance between Watertown (Watertown International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 269 miles / 432 kilometers / 233 nautical miles.
The driving distance from Watertown (ART) to Portsmouth (PSM) is 403 miles / 649 kilometers, and travel time by car is about 8 hours 14 minutes.
Watertown International Airport – Portsmouth International Airport at Pease
Search flights
Distance from Watertown to Portsmouth
There are several ways to calculate the distance from Watertown to Portsmouth. 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 Watertown to Portsmouth?
The estimated flight time from Watertown International Airport to Portsmouth International Airport at Pease is 1 hour and 0 minutes.
What is the time difference between Watertown and Portsmouth?
There is no time difference between Watertown and Portsmouth.
Flight carbon footprint between Watertown International Airport (ART) and Portsmouth International Airport at Pease (PSM)
On average, flying from Watertown to Portsmouth 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 Watertown to Portsmouth
See the map of the shortest flight path between Watertown International Airport (ART) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | Watertown International Airport |
|---|---|
| City: | Watertown, NY |
| Country: | United States  |
| IATA Code: | ART |
| ICAO Code: | KART |
| Coordinates: | 43°59′30″N, 76°1′18″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 |