How far is Saint John from Portsmouth, NH?
The distance between Portsmouth (Portsmouth International Airport at Pease) and Saint John (Saint John Airport) is 290 miles / 466 kilometers / 252 nautical miles.
The driving distance from Portsmouth (PSM) to Saint John (YSJ) is 368 miles / 592 kilometers, and travel time by car is about 7 hours 33 minutes.
Portsmouth International Airport at Pease – Saint John Airport
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Distance from Portsmouth to Saint John
There are several ways to calculate the distance from Portsmouth to Saint John. Here are two standard methods:
Vincenty's formula (applied above)- 289.614 miles
- 466.088 kilometers
- 251.667 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- 289.104 miles
- 465.268 kilometers
- 251.225 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 Saint John?
The estimated flight time from Portsmouth International Airport at Pease to Saint John Airport is 1 hour and 2 minutes.
What is the time difference between Portsmouth and Saint John?
Flight carbon footprint between Portsmouth International Airport at Pease (PSM) and Saint John Airport (YSJ)
On average, flying from Portsmouth to Saint John generates about 68 kg of CO2 per passenger, and 68 kilograms equals 149 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 Saint John
See the map of the shortest flight path between Portsmouth International Airport at Pease (PSM) and Saint John Airport (YSJ).
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 | Saint John Airport |
|---|---|
| City: | Saint John |
| Country: | Canada  |
| IATA Code: | YSJ |
| ICAO Code: | CYSJ |
| Coordinates: | 45°18′57″N, 65°53′25″W |