Nonstop flight route between Mackinac Island, Michigan, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from MCD to ALN:
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- About this route
- MCD Airport Information
- ALN Airport Information
- Facts about MCD
- Facts about ALN
- Map of Nearest Airports to MCD
- List of Nearest Airports to MCD
- Map of Furthest Airports from MCD
- List of Furthest Airports from MCD
- 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 Mackinac Island Airport (MCD), Mackinac Island, Michigan, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 555 miles (or 893 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 Mackinac Island Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | MCD / KMCD |
Airport Name: | Mackinac Island Airport |
Location: | Mackinac Island, Michigan, United States |
GPS Coordinates: | 45°51'54"N by 84°38'13"W |
Area Served: | Mackinac Island, Michigan |
Operator/Owner: | Mackinac Island State Park Commission |
Airport Type: | Public |
Elevation: | 739 feet (225 meters) |
# of Runways: | 1 |
View all routes: | Routes from MCD |
More Information: | MCD 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 Mackinac Island Airport (MCD):
- Mackinac Island Airport (MCD) currently has only 1 runway.
- The closest airport to Mackinac Island Airport (MCD) is Pellston Regional Airport of Emmet County (PLN), which is located 22 miles (35 kilometers) SSW of MCD.
- Because of Mackinac Island Airport's relatively low elevation of 739 feet, planes can take off or land at Mackinac Island 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 Mackinac Island Airport (MCD) is Margaret River Airport (MGV), which is located 11,111 miles (17,881 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Regional Airport (ALN):
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- West Star Aviation is the largest fixed base operations company at the airport.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- St. Louis Regional Airport (ALN) has 2 runways.