How far is Portsmouth, NH, from Shannon?

The distance between Shannon (Shannon Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2858 miles / 4600 kilometers / 2484 nautical miles.

Distance from Shannon to Portsmouth

There are several ways to calculate the distance from Shannon to Portsmouth. Here are two standard methods:

Vincenty's formula (applied above)

• 2858.288 miles
• 4599.969 kilometers
• 2483.784 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

• 2850.336 miles
• 4587.171 kilometers
• 2476.874 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 Shannon to Portsmouth?

The estimated flight time from Shannon Airport to Portsmouth International Airport at Pease is 5 hours and 54 minutes.

What is the time difference between Shannon and Portsmouth?

The time difference between Shannon and Portsmouth is 5 hours. Portsmouth is 5 hours behind Shannon.

Flight carbon footprint between Shannon Airport (SNN) and Portsmouth International Airport at Pease (PSM)

On average, flying from Shannon to Portsmouth generates about 317 kg of CO2 per passenger, and 317 kilograms equals 700 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Shannon to Portsmouth

See the map of the shortest flight path between Shannon Airport (SNN) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin	Shannon Airport
City:	Shannon
Country:	Ireland
IATA Code:	SNN
ICAO Code:	EINN
Coordinates:	52°42′7″N, 8°55′29″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