How far is Watertown, SD, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Watertown (Watertown Regional Airport) is 1313 miles / 2113 kilometers / 1141 nautical miles.
The driving distance from Portsmouth (PSM) to Watertown (ATY) is 1615 miles / 2599 kilometers, and travel time by car is about 31 hours 19 minutes.
Portsmouth International Airport at Pease – Watertown Regional 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)- 1312.683 miles
- 2112.559 kilometers
- 1140.691 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- 1309.140 miles
- 2106.857 kilometers
- 1137.612 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 Regional Airport is 2 hours and 59 minutes.
What is the time difference between Portsmouth and Watertown?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Watertown Regional Airport (ATY)
On average, flying from Portsmouth to Watertown generates about 168 kg of CO2 per passenger, and 168 kilograms equals 370 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 Regional Airport (ATY).
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 Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°9′16″W |