Nonstop flight route between Cotonou, Benin and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from COO to ALN:
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- About this route
- COO Airport Information
- ALN Airport Information
- Facts about COO
- Facts about ALN
- Map of Nearest Airports to COO
- List of Nearest Airports to COO
- Map of Furthest Airports from COO
- List of Furthest Airports from COO
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between Cotonou Cadjehoun Airport (COO), Cotonou, Benin and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 6,073 miles (or 9,774 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 Cotonou Cadjehoun Airport and St. Louis Regional 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 Cotonou Cadjehoun Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | COO / DBBB |
Airport Name: | Cotonou Cadjehoun Airport |
Location: | Cotonou, Benin |
GPS Coordinates: | 6°21'20"N by 2°23'5"E |
Area Served: | Cotonou |
Elevation: | 19 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from COO |
More Information: | COO Maps & Info |
Arrival 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 |
Facts about Cotonou Cadjehoun Airport (COO):
- In 2004, the airport served 301,493 passengers.
- Because of Cotonou Cadjehoun Airport's relatively low elevation of 19 feet, planes can take off or land at Cotonou Cadjehoun 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 Cotonou Cadjehoun Airport (COO) is Murtala Muhammed International Airport (LOS), which is located 66 miles (106 kilometers) ENE of COO.
- Cotonou Cadjehoun Airport (COO) currently has only 1 runway.
- The furthest airport from Cotonou Cadjehoun Airport (COO) is Funafuti International Airport (FUN), which is nearly antipodal to Cotonou Cadjehoun Airport (meaning Cotonou Cadjehoun Airport is almost on the exact opposite side of the Earth from Funafuti International Airport), and is located 12,172 miles (19,589 kilometers) away in Funafuti, Tuvalu.
Facts about St. Louis Regional Airport (ALN):
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- 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 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.
- The 2,250 acres airfield sits at 544 ft MSL.