Air Miles Calculator

Distance between New York, NY (LGA) and Portsmouth, NH (PSM)

Flight distance from New York to Portsmouth (New York LaGuardia Airport – Portsmouth International Airport at Pease) is 223 miles / 359 kilometers / 194 nautical miles. Estimated flight time is 55 minutes.

Driving distance from New York (LGA) to Portsmouth (PSM) is 257 miles / 414 kilometers and travel time by car is about 5 hours 9 minutes.

Map of flight path and driving directions from New York to Portsmouth.

Shortest flight path between New York LaGuardia Airport (LGA) and Portsmouth International Airport at Pease (PSM).

How far is Portsmouth from New York?

There are several ways to calculate distances between New York and Portsmouth. Here are two common methods:

Vincenty's formula (applied above)
  • 223.379 miles
  • 359.494 kilometers
  • 194.111 nautical miles

Vincenty's formula calculates the distance between latitude/longitude points on the earth’s surface, using an ellipsoidal model of the earth.

Haversine formula
  • 223.216 miles
  • 359.232 kilometers
  • 193.970 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).

Airport information


A New York LaGuardia Airport
City: New York, NY
Country: United States Flag of United States
IATA Code: LGA
ICAO Code: KLGA
Coordinates: 40°46′37″N, 73°52′21″W

B 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

Time difference and current local times

There is no time difference between New York and Portsmouth.

Time Difference

New York, NY

 EDT

Portsmouth, NH

 EDT

Carbon dioxide emissions

Estimated CO2 emissions per passenger is 58 kg (128 pounds).

Frequent Flyer Miles Calculator

New York (LGA) → Portsmouth (PSM).

Distance:
223
Elite level bonus:
0
Booking class bonus:
0

In total

Total frequent flyer miles:
223

Round trip?