Nonstop flight route between Memphis, Tennessee, United States and Alton, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from MEM to ALN:
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- About this route
- MEM Airport Information
- ALN Airport Information
- Facts about MEM
- Facts about ALN
- Map of Nearest Airports to MEM
- List of Nearest Airports to MEM
- Map of Furthest Airports from MEM
- List of Furthest Airports from MEM
- 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 Memphis International Airport (MEM), Memphis, Tennessee, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 266 miles (or 428 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 Memphis International 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: | MEM / KMEM |
Airport Name: | Memphis International Airport |
Location: | Memphis, Tennessee, United States |
GPS Coordinates: | 35°2'32"N by 89°58'36"W |
Area Served: | Memphis, Tennessee |
Airport Type: | Public |
Elevation: | 341 feet (104 meters) |
# of Runways: | 4 |
View all routes: | Routes from MEM |
More Information: | MEM 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 Memphis International Airport (MEM):
- Because of Memphis International Airport's relatively low elevation of 341 feet, planes can take off or land at Memphis 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.
- Memphis International Airport handled 7,874,888 passengers last year.
- Since 2009 the airport has been a small hub for small regional airline SeaPort Airlines, which has single-engine flights to communities in Arkansas through the Essential Air Service program.
- The furthest airport from Memphis International Airport (MEM) is Margaret River Airport (MGV), which is located 11,010 miles (17,719 kilometers) away in Margaret River, Western Australia, Australia.
- Memphis International Airport (MEM) has 4 runways.
- Runway 9/27 reopened for traffic on November 30, 2009 after nine months of resurfacing.
- The closest airport to Memphis International Airport (MEM) is Olive Branch Airport (OLV), which is located only 12 miles (19 kilometers) ESE of MEM.
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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.