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How far is Portsmouth, NH, from Belfast?

The distance between Belfast (Belfast International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2939 miles / 4729 kilometers / 2554 nautical miles.

Belfast International Airport – Portsmouth International Airport at Pease

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2939
Miles
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4729
Kilometers
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2554
Nautical miles

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Distance from Belfast to Portsmouth

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

Vincenty's formula (applied above)
  • 2938.598 miles
  • 4729.215 kilometers
  • 2553.572 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
  • 2930.424 miles
  • 4716.061 kilometers
  • 2546.469 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 Belfast to Portsmouth?

The estimated flight time from Belfast International Airport to Portsmouth International Airport at Pease is 6 hours and 3 minutes.

Flight carbon footprint between Belfast International Airport (BFS) and Portsmouth International Airport at Pease (PSM)

On average, flying from Belfast to Portsmouth generates about 327 kg of CO2 per passenger, and 327 kilograms equals 721 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path from Belfast to Portsmouth

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

Airport information

Origin Belfast International Airport
City: Belfast
Country: United Kingdom Flag of United Kingdom
IATA Code: BFS
ICAO Code: EGAA
Coordinates: 54°39′27″N, 6°12′56″W
Destination Portsmouth International Airport at Pease
City: Portsmouth, NH
Country: United States Flag of United States
IATA Code: PSM
ICAO Code: KPSM
Coordinates: 43°4′40″N, 70°49′23″W