How far is Portsmouth, NH, from Rochester, NY?
The distance between Rochester (Greater Rochester International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 346 miles / 557 kilometers / 301 nautical miles.
The driving distance from Rochester (ROC) to Portsmouth (PSM) is 449 miles / 723 kilometers, and travel time by car is about 8 hours 58 minutes.
Greater Rochester International Airport – Portsmouth International Airport at Pease
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Distance from Rochester to Portsmouth
There are several ways to calculate the distance from Rochester to Portsmouth. Here are two standard methods:
Vincenty's formula (applied above)- 346.386 miles
- 557.454 kilometers
- 301.001 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- 345.457 miles
- 555.960 kilometers
- 300.194 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 Rochester to Portsmouth?
The estimated flight time from Greater Rochester International Airport to Portsmouth International Airport at Pease is 1 hour and 9 minutes.
What is the time difference between Rochester and Portsmouth?
There is no time difference between Rochester and Portsmouth.
Flight carbon footprint between Greater Rochester International Airport (ROC) and Portsmouth International Airport at Pease (PSM)
On average, flying from Rochester to Portsmouth generates about 76 kg of CO2 per passenger, and 76 kilograms equals 168 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Rochester to Portsmouth
See the map of the shortest flight path between Greater Rochester International Airport (ROC) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | Greater Rochester International Airport |
|---|---|
| City: | Rochester, NY |
| Country: | United States  |
| IATA Code: | ROC |
| ICAO Code: | KROC |
| Coordinates: | 43°7′8″N, 77°40′20″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 |