Nonstop flight route between Alton, Illinois, United States and Ciudad Obregón, Sonora, Mexico:
Departure Airport:

Arrival Airport:

Distance from ALN to CEN:
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- About this route
- ALN Airport Information
- CEN Airport Information
- Facts about ALN
- Facts about CEN
- 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 CEN
- List of Nearest Airports to CEN
- Map of Furthest Airports from CEN
- List of Furthest Airports from CEN
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Ciudad Obregón International Airport (CEN), Ciudad Obregón, Sonora, Mexico would travel a Great Circle distance of 1,388 miles (or 2,234 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 Ciudad Obregón International 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: | CEN / MMCN |
Airport Names: |
|
Location: | Ciudad Obregón, Sonora, Mexico |
GPS Coordinates: | 27°23'32"N by 109°49'59"W |
Operator/Owner: | Aeropuertos y Servicios Auxiliares |
Airport Type: | Public |
Elevation: | 205 feet (62 meters) |
# of Runways: | 1 |
View all routes: | Routes from CEN |
More Information: | CEN Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
Facts about Ciudad Obregón International Airport (CEN):
- The furthest airport from Ciudad Obregón International Airport (CEN) is Sir Gaëtan Duval Airport (RRG), which is located 11,756 miles (18,919 kilometers) away in Rodrigues Island, Mauritius.
- Ciudad Obregón International Airport (CEN) currently has only 1 runway.
- In addition to being known as "Ciudad Obregón International Airport", another name for CEN is "Aeropuerto Internacional de Ciudad Obregón".
- Because of Ciudad Obregón International Airport's relatively low elevation of 205 feet, planes can take off or land at Ciudad Obregón International 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 Ciudad Obregón International Airport (CEN) is General José María Yáñez International Airport (GYM), which is located 78 miles (125 kilometers) WNW of CEN.