How far is St. George Island, AK, from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and St. George Island (St. George Airport) is 4120 miles / 6630 kilometers / 3580 nautical miles.
Portsmouth International Airport at Pease – St. George Airport
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Distance from Portsmouth to St. George Island
There are several ways to calculate the distance from Portsmouth to St. George Island. Here are two standard methods:
Vincenty's formula (applied above)- 4119.836 miles
- 6630.234 kilometers
- 3580.040 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- 4107.952 miles
- 6611.108 kilometers
- 3569.713 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 St. George Island?
The estimated flight time from Portsmouth International Airport at Pease to St. George Airport is 8 hours and 18 minutes.
What is the time difference between Portsmouth and St. George Island?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and St. George Airport (STG)
On average, flying from Portsmouth to St. George Island generates about 471 kg of CO2 per passenger, and 471 kilograms equals 1 039 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.
Map of flight path from Portsmouth to St. George Island
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and St. George Airport (STG).
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 | St. George Airport |
|---|---|
| City: | St. George Island, AK |
| Country: | United States |
| IATA Code: | STG |
| ICAO Code: | PAPB |
| Coordinates: | 56°34′38″N, 169°39′49″W |