Nonstop flight route between Portsmouth, New Hampshire, United States and Saint-Louis, Senegal:
Departure Airport:

Arrival Airport:

Distance from PSM to XLS:
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- About this route
- PSM Airport Information
- XLS Airport Information
- Facts about PSM
- Facts about XLS
- 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 XLS
- List of Nearest Airports to XLS
- Map of Furthest Airports from XLS
- List of Furthest Airports from XLS
About this route:
A direct, nonstop flight between Portsmouth International Airport at Pease (PSM), Portsmouth, New Hampshire, United States and Saint-Louis Airport (XLS), Saint-Louis, Senegal would travel a Great Circle distance of 3,682 miles (or 5,925 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 large distance between Portsmouth International Airport at Pease and Saint-Louis Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Portsmouth International Airport at Pease and Saint-Louis Airport. You'll see that it will travel the same route of the red line on this map!
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: | XLS / GOSS |
Airport Names: |
|
Location: | Saint-Louis, Senegal |
GPS Coordinates: | 16°3'2"N by 16°27'47"W |
Area Served: | Saint-Louis, Senegal |
Airport Type: | Public |
Elevation: | 9 feet (3 meters) |
# of Runways: | 2 |
View all routes: | Routes from XLS |
More Information: | XLS Maps & Info |
Facts about Portsmouth International Airport at Pease (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.
- 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.
- Pease was one of 7 Launch Abort Sites and one of 18 Emergency Landing Sites for NASA space shuttle orbiters.
- 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.
- The airport served as a hub for Pan Am from 1998 until 2005, when all mainline Pan Am flights at the airport were suspended.
- Portsmouth International Airport at Pease (PSM) currently has only 1 runway.
Facts about Saint-Louis Airport (XLS):
- The closest airport to Saint-Louis Airport (XLS) is Richard Toll Airport (RDT), which is located 60 miles (96 kilometers) ENE of XLS.
- Because of Saint-Louis Airport's relatively low elevation of 9 feet, planes can take off or land at Saint-Louis 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.
- In addition to being known as "Saint-Louis Airport", another name for XLS is "Aéroport de Saint-Louis".
- Saint-Louis Airport (XLS) has 2 runways.
- The furthest airport from Saint-Louis Airport (XLS) is Santo-Pekoa International Airport (SON), which is nearly antipodal to Saint-Louis Airport (meaning Saint-Louis Airport is almost on the exact opposite side of the Earth from Santo-Pekoa International Airport), and is located 12,189 miles (19,616 kilometers) away in Luganville, Vanuatu.