How far is Williston, ND, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Williston (Williston Basin International Airport) is 1621 miles / 2608 kilometers / 1408 nautical miles.
The driving distance from Portsmouth (PSM) to Williston (XWA) is 1970 miles / 3171 kilometers, and travel time by car is about 38 hours 16 minutes.
Portsmouth International Airport at Pease – Williston Basin International Airport
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Distance from Portsmouth to Williston
There are several ways to calculate the distance from Portsmouth to Williston. Here are two standard methods:
Vincenty's formula (applied above)- 1620.604 miles
- 2608.109 kilometers
- 1408.266 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- 1616.282 miles
- 2601.153 kilometers
- 1404.510 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 Williston?
The estimated flight time from Portsmouth International Airport at Pease to Williston Basin International Airport is 3 hours and 34 minutes.
What is the time difference between Portsmouth and Williston?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Williston Basin International Airport (XWA)
On average, flying from Portsmouth to Williston generates about 187 kg of CO2 per passenger, and 187 kilograms equals 413 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 Williston
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Williston Basin International Airport (XWA).
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 | Williston Basin International Airport |
|---|---|
| City: | Williston, ND |
| Country: | United States |
| IATA Code: | XWA |
| ICAO Code: | KXWA |
| Coordinates: | 48°15′30″N, 103°44′55″W |