How far is Johnstown, PA, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Johnstown (Johnstown–Cambria County Airport) is 456 miles / 734 kilometers / 396 nautical miles.
The driving distance from Portsmouth (PSM) to Johnstown (JST) is 566 miles / 911 kilometers, and travel time by car is about 11 hours 20 minutes.
Portsmouth International Airport at Pease – Johnstown–Cambria County Airport
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Distance from Portsmouth to Johnstown
There are several ways to calculate the distance from Portsmouth to Johnstown. Here are two standard methods:
Vincenty's formula (applied above)- 455.823 miles
- 733.576 kilometers
- 396.099 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- 454.938 miles
- 732.152 kilometers
- 395.330 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 Johnstown?
The estimated flight time from Portsmouth International Airport at Pease to Johnstown–Cambria County Airport is 1 hour and 21 minutes.
What is the time difference between Portsmouth and Johnstown?
There is no time difference between Portsmouth and Johnstown.
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Johnstown–Cambria County Airport (JST)
On average, flying from Portsmouth to Johnstown generates about 92 kg of CO2 per passenger, and 92 kilograms equals 203 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 Johnstown
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Johnstown–Cambria County Airport (JST).
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 | Johnstown–Cambria County Airport |
|---|---|
| City: | Johnstown, PA |
| Country: | United States |
| IATA Code: | JST |
| ICAO Code: | KJST |
| Coordinates: | 40°18′57″N, 78°50′2″W |