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How far is Portsmouth, NH, from San Diego, CA?

The distance between San Diego (San Diego International Airport) and Portsmouth (Portsmouth International Airport at Pease) is 2597 miles / 4179 kilometers / 2256 nautical miles.

The driving distance from San Diego (SAN) to Portsmouth (PSM) is 3081 miles / 4958 kilometers, and travel time by car is about 55 hours 53 minutes.

San Diego International Airport – Portsmouth International Airport at Pease

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2597
Miles
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4179
Kilometers
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2256
Nautical miles

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Distance from San Diego to Portsmouth

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

Vincenty's formula (applied above)
  • 2596.707 miles
  • 4178.994 kilometers
  • 2256.476 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
  • 2591.363 miles
  • 4170.394 kilometers
  • 2251.832 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 San Diego to Portsmouth?

The estimated flight time from San Diego International Airport to Portsmouth International Airport at Pease is 5 hours and 24 minutes.

Flight carbon footprint between San Diego International Airport (SAN) and Portsmouth International Airport at Pease (PSM)

On average, flying from San Diego to Portsmouth generates about 286 kg of CO2 per passenger, and 286 kilograms equals 632 pounds (lbs). The figures are estimates and include only the CO2 generated by burning jet fuel.

Map of flight path and driving directions from San Diego to Portsmouth

See the map of the shortest flight path between San Diego International Airport (SAN) and Portsmouth International Airport at Pease (PSM).

Airport information

Origin San Diego International Airport
City: San Diego, CA
Country: United States Flag of United States
IATA Code: SAN
ICAO Code: KSAN
Coordinates: 32°44′0″N, 117°11′24″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