How far is Grand Island, NE, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Grand Island (Central Nebraska Regional Airport) is 1416 miles / 2278 kilometers / 1230 nautical miles.
The driving distance from Portsmouth (PSM) to Grand Island (GRI) is 1644 miles / 2645 kilometers, and travel time by car is about 30 hours 39 minutes.
Portsmouth International Airport at Pease – Central Nebraska Regional Airport
Search flights
Distance from Portsmouth to Grand Island
There are several ways to calculate the distance from Portsmouth to Grand Island. Here are two standard methods:
Vincenty's formula (applied above)- 1415.610 miles
- 2278.203 kilometers
- 1230.131 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- 1411.961 miles
- 2272.332 kilometers
- 1226.961 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 Portsmouth to Grand Island?
The estimated flight time from Portsmouth International Airport at Pease to Central Nebraska Regional Airport is 3 hours and 10 minutes.
What is the time difference between Portsmouth and Grand Island?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Central Nebraska Regional Airport (GRI)
On average, flying from Portsmouth to Grand Island generates about 174 kg of CO2 per passenger, and 174 kilograms equals 384 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 Grand Island
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Central Nebraska Regional Airport (GRI).
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 | Central Nebraska Regional Airport |
|---|---|
| City: | Grand Island, NE |
| Country: | United States |
| IATA Code: | GRI |
| ICAO Code: | KGRI |
| Coordinates: | 40°58′2″N, 98°18′34″W |