Nonstop flight route between Portsmouth, New Hampshire, United States and New York City, New York, United States:
Departure Airport:

Arrival Airport:

Distance from PSM to LGA:
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- About this route
- PSM Airport Information
- LGA Airport Information
- Facts about PSM
- Facts about LGA
- Map of Nearest Airports to PSM
- List of Nearest Airports to PSM
- Map of Furthest Airports from PSM
- List of Furthest Airports from PSM
- Map of Nearest Airports to LGA
- List of Nearest Airports to LGA
- Map of Furthest Airports from LGA
- List of Furthest Airports from LGA
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and LaGuardia Airport (LGA), New York City, New York, United States would travel a Great Circle distance of 223 miles (or 359 kilometers).
A Great Circle is the shortest distance between 2 points on a sphere. Because most world maps are flat (but the Earth is round), the route of the shortest distance between 2 points on the Earth will often appear curved when viewed on a flat map, especially for long distances. If you were to simply draw a straight line on a flat map and measure a very long distance, it would likely be much further than if you were to lay a string between those two points on a globe. Because of the relatively short distance between Portsmouth International Airport at Pease and LaGuardia Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | PSM / KPSM |
Airport Name: | Portsmouth International Airport at Pease |
Location: | Portsmouth, New Hampshire, United States |
GPS Coordinates: | 43°4'41"N by 70°49'23"W |
Area Served: | Portsmouth, New Hampshire |
Operator/Owner: | Pease Development Authority |
Airport Type: | Public / Military |
Elevation: | 100 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSM |
More Information: | PSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | LGA / KLGA |
Airport Name: | LaGuardia Airport |
Location: | New York City, New York, United States |
GPS Coordinates: | 40°46'38"N by 73°52'21"W |
Area Served: | New York City |
Operator/Owner: | City of New York |
Airport Type: | Public |
Elevation: | 21 feet (6 meters) |
# of Runways: | 2 |
View all routes: | Routes from LGA |
More Information: | LGA Maps & Info |
Facts about Portsmouth International Airport at Pease (PSM):
- The closest airport to Portsmouth International Airport at Pease (PSM) is Sanford Seacoast Regional Airport (SFM), which is located 23 miles (36 kilometers) NNE of PSM.
- Because of Portsmouth International Airport at Pease's relatively low elevation of 100 feet, planes can take off or land at Portsmouth International Airport at Pease at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
- The furthest airport from Portsmouth International Airport at Pease (PSM) is Margaret River Airport (MGV), which is located 11,729 miles (18,875 kilometers) away in Margaret River, Western Australia, Australia.
- It shares the runway with the Pease Air National Guard Base, which is actively utilized by the 157th Air Refueling Wing of the New Hampshire Air National Guard, an Air Mobility Command -gained Air National Guard unit operating the KC-135R Stratotanker aircraft.
Facts about LaGuardia Airport (LGA):
- In 1986, Pan Am restarted flights at the MAT with the purchase of New York Air's shuttle service between Boston, New York City, and Washington, D.C.
- The closest airport to LaGuardia Airport (LGA) is Flushing Airport (closed 1984) (FLU), which is located only 2 miles (3 kilometers) E of LGA.
- Because of American's pivotal role in the development of the airport, LaGuardia gave the airline extra real estate during the airport's first year of operation, including four hangars.
- Although LaGuardia was a large airport for the era in which it was built, it soon became too small.
- LaGuardia Airport (LGA) has 2 runways.
- The furthest airport from LaGuardia Airport (LGA) is Margaret River Airport (MGV), which is located 11,754 miles (18,917 kilometers) away in Margaret River, Western Australia, Australia.
- During the Floyd Bennett experiment La Guardia and American executives began an alternative plan to build a new airport in Queens, where it could take advantage of the new Queens–Midtown Tunnel to Manhattan.
- Because of LaGuardia Airport's relatively low elevation of 21 feet, planes can take off or land at LaGuardia Airport at a lower air speed than at airports located at a higher elevation. This is because the air density is higher closer to sea level than it would otherwise be at higher elevations.