How far is Portsmouth, NH, from London?

The distance between London (London Stansted Airport) and Portsmouth (Portsmouth International Airport at Pease) is 3247 miles / 5226 kilometers / 2822 nautical miles.

Distance from London to Portsmouth

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

Vincenty's formula (applied above)

• 3247.257 miles
• 5225.954 kilometers
• 2821.789 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

• 3238.124 miles
• 5211.256 kilometers
• 2813.853 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 London to Portsmouth?

The estimated flight time from London Stansted Airport to Portsmouth International Airport at Pease is 6 hours and 38 minutes.

What is the time difference between London and Portsmouth?

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

Flight carbon footprint between London Stansted Airport (STN) and Portsmouth International Airport at Pease (PSM)

On average, flying from London to Portsmouth generates about 364 kg of CO2 per passenger, and 364 kilograms equals 802 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from London to Portsmouth

See the map of the shortest flight path between London Stansted Airport (STN) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin	London Stansted Airport
City:	London
Country:	United Kingdom
IATA Code:	STN
ICAO Code:	EGSS
Coordinates:	51°53′5″N, 0°14′5″E

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