Nonstop flight route between Columbus, Ohio, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Port Columbus International Airport (CMH), Columbus, Ohio, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 389 miles (or 626 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 Port Columbus 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:

Arrival Airport Information:

Facts about Port Columbus International Airport (CMH):

• Port Columbus International Airport was formerly a hub of America West Airlines in the 1990s, but the company closed the hub in 2003.
• Port Columbus International Airport (CMH) has 2 runways.
• The airport opened July 8, 1929 on a site selected by Charles Lindbergh, as the eastern air terminus of the Transcontinental Air Transport air-rail New York to Los Angeles transcontinental route.
• Envoy Air operates a maintenance base at Port Columbus, along with Republic Airways who operate their flagship base at Port Columbus.
• According to a 2005 market survey, Port Columbus attracts about 50% of its passengers from outside of its 60-mile radius primary service region.
• The furthest airport from Port Columbus International Airport (CMH) is Margaret River Airport (MGV), which is located 11,361 miles (18,284 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Port Columbus International Airport's relatively low elevation of 815 feet, planes can take off or land at Port Columbus 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 Port Columbus International Airport (CMH) is Ohio State University Airport (OSU), which is located only 11 miles (18 kilometers) WNW of CMH.
• On April 25, 2004, a new 195-foot control tower directed its first aircraft, ushering in the beginning of several major facility enhancements to be constructed through 2025.

Facts about St. Louis Regional Airport (ALN):

• St. Louis Regional Airport (ALN) has 2 runways.
• 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.
• 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.
• 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.
• In the spring of 2004 the airport was at the center of a scandal.
• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.