How far is Portsmouth, NH, from Roanoke, VA?
The distance between Roanoke (Roanoke–Blacksburg Regional Airport) and Portsmouth (Portsmouth International Airport at Pease) is 625 miles / 1006 kilometers / 543 nautical miles.
The driving distance from Roanoke (ROA) to Portsmouth (PSM) is 721 miles / 1161 kilometers, and travel time by car is about 14 hours 21 minutes.
Roanoke–Blacksburg Regional Airport – Portsmouth International Airport at Pease
Search flights
Distance from Roanoke to Portsmouth
There are several ways to calculate the distance from Roanoke to Portsmouth. Here are two standard methods:
Vincenty's formula (applied above)- 625.409 miles
- 1006.499 kilometers
- 543.466 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- 624.828 miles
- 1005.563 kilometers
- 542.961 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 Roanoke to Portsmouth?
The estimated flight time from Roanoke–Blacksburg Regional Airport to Portsmouth International Airport at Pease is 1 hour and 41 minutes.
What is the time difference between Roanoke and Portsmouth?
Flight carbon footprint between Roanoke–Blacksburg Regional Airport (ROA) and Portsmouth International Airport at Pease (PSM)
On average, flying from Roanoke to Portsmouth generates about 116 kg of CO2 per passenger, and 116 kilograms equals 255 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Roanoke to Portsmouth
See the map of the shortest flight path between Roanoke–Blacksburg Regional Airport (ROA) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | Roanoke–Blacksburg Regional Airport |
|---|---|
| City: | Roanoke, VA |
| Country: | United States  |
| IATA Code: | ROA |
| ICAO Code: | KROA |
| Coordinates: | 37°19′31″N, 79°58′31″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 |