Nonstop flight route between Alton, Illinois, United States and Ponce, Puerto Rico:
Departure Airport:

Arrival Airport:

Distance from ALN to PSE:
Share this route:
Jump to:
- About this route
- ALN Airport Information
- PSE Airport Information
- Facts about ALN
- Facts about PSE
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- 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. Louis Regional Airport (ALN), Alton, Illinois, United States and Mercedita Airport (PSE), Ponce, Puerto Rico would travel a Great Circle distance of 2,017 miles (or 3,246 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 St. Louis Regional Airport and Mercedita Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ALN / KALN |
Airport Name: | St. Louis Regional Airport |
Location: | Alton, Illinois, United States |
GPS Coordinates: | 38°53'25"N by 90°2'45"W |
Area Served: | Alton, Illinois |
Operator/Owner: | St. Louis Regional |
Airport Type: | Public |
Elevation: | 544 feet (166 meters) |
# of Runways: | 2 |
View all routes: | Routes from ALN |
More Information: | ALN 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. Louis Regional Airport (ALN):
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- St. Louis Regional Airport (ALN) has 2 runways.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
Facts about Mercedita Airport (PSE):
- 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.
- Mercedita Airport (PSE) currently has only 1 runway.
- 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.
- The airport has been enlarged on various occasions.
- 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.
- Federal Express and DHL operate out of this airport for the distribution of surface freight.
- Passenger movement at the airport in FY 2008 was 278,911, a 1,228% increase over fiscal year 2003 and the highest of all the regional airports for that 5-year period.
- The closest airport to Mercedita Airport (PSE) is Antonio (Nery) Juarbe Pol Airport (ARE), which is located 31 miles (51 kilometers) NNW of PSE.
- The first scheduled commercial flights at Mercedita occurred in 1965 when domestic flights started.
- In addition to being known as "Mercedita Airport", other names for PSE include "Aeropuerto Mercedita" and "18.00'30"N, 66.33'47"W".