How far is Portsmouth, NH, from Watertown, SD?
The distance between Watertown (Watertown Regional Airport) and Portsmouth (Portsmouth International Airport at Pease) is 1313 miles / 2113 kilometers / 1141 nautical miles.
The driving distance from Watertown (ATY) to Portsmouth (PSM) is 1618 miles / 2604 kilometers, and travel time by car is about 31 hours 20 minutes.
Watertown Regional Airport – Portsmouth International Airport at Pease
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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)- 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 Watertown to Portsmouth?
The estimated flight time from Watertown Regional Airport to Portsmouth International Airport at Pease is 2 hours and 59 minutes.
What is the time difference between Watertown and Portsmouth?
Flight carbon footprint between Watertown Regional Airport (ATY) and Portsmouth International Airport at Pease (PSM)
On average, flying from Watertown to Portsmouth 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 Watertown to Portsmouth
See the map of the shortest flight path between Watertown Regional Airport (ATY) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | Watertown Regional Airport |
|---|---|
| City: | Watertown, SD |
| Country: | United States  |
| IATA Code: | ATY |
| ICAO Code: | KATY |
| Coordinates: | 44°54′50″N, 97°9′16″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 |