How far is Portsmouth, NH, from Alamosa, CO?
The distance between Alamosa (San Luis Valley Regional Airport) and Portsmouth (Portsmouth International Airport at Pease) is 1879 miles / 3023 kilometers / 1632 nautical miles.
The driving distance from Alamosa (ALS) to Portsmouth (PSM) is 2226 miles / 3582 kilometers, and travel time by car is about 41 hours 26 minutes.
San Luis Valley Regional Airport – Portsmouth International Airport at Pease
Search flights
Distance from Alamosa to Portsmouth
There are several ways to calculate the distance from Alamosa to Portsmouth. Here are two standard methods:
Vincenty's formula (applied above)- 1878.597 miles
- 3023.309 kilometers
- 1632.456 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- 1874.194 miles
- 3016.223 kilometers
- 1628.630 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 Alamosa to Portsmouth?
The estimated flight time from San Luis Valley Regional Airport to Portsmouth International Airport at Pease is 4 hours and 3 minutes.
What is the time difference between Alamosa and Portsmouth?
Flight carbon footprint between San Luis Valley Regional Airport (ALS) and Portsmouth International Airport at Pease (PSM)
On average, flying from Alamosa to Portsmouth generates about 206 kg of CO2 per passenger, and 206 kilograms equals 455 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path and driving directions from Alamosa to Portsmouth
See the map of the shortest flight path between San Luis Valley Regional Airport (ALS) and Portsmouth International Airport at Pease (PSM).
Airport information
| Origin | San Luis Valley Regional Airport |
|---|---|
| City: | Alamosa, CO |
| Country: | United States  |
| IATA Code: | ALS |
| ICAO Code: | KALS |
| Coordinates: | 37°26′5″N, 105°52′1″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 |