Nonstop flight route between St. Mary's, Alaska, United States and Ponce, Puerto Rico:
Departure Airport:

Arrival Airport:

Distance from KSM to PSE:
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- About this route
- KSM Airport Information
- PSE Airport Information
- Facts about KSM
- Facts about PSE
- Map of Nearest Airports to KSM
- List of Nearest Airports to KSM
- Map of Furthest Airports from KSM
- List of Furthest Airports from KSM
- Map of Nearest Airports to PSE
- List of Nearest Airports to PSE
- Map of Furthest Airports from PSE
- List of Furthest Airports from PSE
About this route:
A direct, nonstop flight between St. Mary's Airport (KSM), St. Mary's, Alaska, United States and Mercedita Airport (PSE), Ponce, Puerto Rico would travel a Great Circle distance of 5,337 miles (or 8,589 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 St. Mary's Airport and Mercedita 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 St. Mary's Airport and Mercedita Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | KSM / PASM |
Airport Name: | St. Mary's Airport |
Location: | St. Mary's, Alaska, United States |
GPS Coordinates: | 62°3'38"N by 163°18'6"W |
Operator/Owner: | Alaska DOT&PF |
Airport Type: | Public |
Elevation: | 312 feet (95 meters) |
# of Runways: | 2 |
View all routes: | Routes from KSM |
More Information: | KSM Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | PSE / TJPS |
Airport Names: |
|
Location: | Ponce, Puerto Rico |
GPS Coordinates: | 18°0'29"N by 66°33'47"W |
Area Served: | Ponce, Puerto Rico |
Operator/Owner: | Puerto Rico Ports Authority |
Airport Type: | Public |
Elevation: | 29 feet (9 meters) |
# of Runways: | 1 |
View all routes: | Routes from PSE |
More Information: | PSE Maps & Info |
Facts about St. Mary's Airport (KSM):
- The furthest airport from St. Mary's Airport (KSM) is Cape Town International Airport (CPT), which is located 10,494 miles (16,889 kilometers) away in Cape Town, South Africa.
- Because of St. Mary's Airport's relatively low elevation of 312 feet, planes can take off or land at St. Mary's 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.
- The closest airport to St. Mary's Airport (KSM) is Mountain Village Airport (MOU), which is located only 13 miles (20 kilometers) W of KSM.
- St. Mary's Airport (KSM) has 2 runways.
Facts about Mercedita Airport (PSE):
- The furthest airport from Mercedita Airport (PSE) is Barrow Island Airport (BWB), which is nearly antipodal to Mercedita Airport (meaning Mercedita Airport is almost on the exact opposite side of the Earth from Barrow Island Airport), and is located 12,201 miles (19,636 kilometers) away in Barrow Island, Western Australia, Australia.
- Because of Mercedita Airport's relatively low elevation of 29 feet, planes can take off or land at Mercedita 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 "Mercedita Airport", other names for PSE include "Aeropuerto Mercedita" and "18.00'30"N, 66.33'47"W".
- The closest airport to Mercedita Airport (PSE) is Antonio (Nery) Juarbe Pol Airport (ARE), which is located 31 miles (51 kilometers) NNW of PSE.
- On June 17, 2005, JetBlue Airways began daily, non-stop service between John F.
- Mercedita Airport (PSE) currently has only 1 runway.
- The takeoff/landing strip was then only 850 feet long by 50 feet wide.
- Built in 1939, Mercedita was originally a modest aerodrome used for the airborne irrigation of sugarcane fields belonging to Destilería Serrallés.
- On August 12, 1981, an Air Florida plane with 125 Haitian refugees aboard landed at Mercedita en route to the Fort Allen facility in Juana Diaz, part of the 1981 Haitian refugees exodus.