Nonstop flight route between Alton, Illinois, United States and El Salvador, Chile:
Departure Airport:

Arrival Airport:

Distance from ALN to ESR:
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- About this route
- ALN Airport Information
- ESR Airport Information
- Facts about ALN
- Facts about ESR
- 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 ESR
- List of Nearest Airports to ESR
- Map of Furthest Airports from ESR
- List of Furthest Airports from ESR
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Ricardo García Posada Airport El Salvador Bajo Airport (ESR), El Salvador, Chile would travel a Great Circle distance of 4,692 miles (or 7,550 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. Louis Regional Airport and Ricardo García Posada Airport El Salvador Bajo 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. Louis Regional Airport and Ricardo García Posada Airport El Salvador Bajo Airport. You'll see that it will travel the same route of the red line on this map!
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: | ESR / SCES |
Airport Name: | Ricardo García Posada Airport El Salvador Bajo Airport |
Location: | El Salvador, Chile |
GPS Coordinates: | 26°18'39"S by 69°45'55"W |
Airport Type: | Public |
Elevation: | 5240 feet (1,597 meters) |
# of Runways: | 1 |
View all routes: | Routes from ESR |
More Information: | ESR Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
Facts about Ricardo García Posada Airport El Salvador Bajo Airport (ESR):
- The closest airport to Ricardo García Posada Airport El Salvador Bajo Airport (ESR) is Chañaral Airport (CNR), which is located 52 miles (84 kilometers) W of ESR.
- Ricardo García Posada Airport El Salvador Bajo Airport (ESR) currently has only 1 runway.
- Because of Ricardo García Posada Airport El Salvador Bajo Airport's high elevation of 5,240 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ESR. Combined with a high temperature, this could make ESR a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Ricardo García Posada Airport El Salvador Bajo Airport (ESR) is Liping Airport (HZH), which is nearly antipodal to Ricardo García Posada Airport El Salvador Bajo Airport (meaning Ricardo García Posada Airport El Salvador Bajo Airport is almost on the exact opposite side of the Earth from Liping Airport), and is located 12,370 miles (19,907 kilometers) away in Liping County, Guizhou, China.