Nonstop flight route between Huntsville / Decatur, Alabama, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Huntsville International Airport (HSV), Huntsville / Decatur, Alabama, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 345 miles (or 555 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 Huntsville 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 Huntsville International Airport (HSV):

• Huntsville International Airport (HSV) has 2 runways.
• In 1989, Huntsville International became the first airport in the United States to install an ASR-9 dual-channel airport surveillance radar system.
• Also, plans are underway for another terminal area, added runways, and the lengthening of the two current runways.
• Because of Huntsville International Airport's relatively low elevation of 629 feet, planes can take off or land at Huntsville 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.
• Huntsville International Airport covers 6,000 acres at an elevation of 629 feet above mean sea level.
• In June 1967 Eastern Airlines introduced "The Space Corridor" linking Huntsville with aerospace centers in St.
• The furthest airport from Huntsville International Airport (HSV) is Margaret River Airport (MGV), which is located 11,189 miles (18,008 kilometers) away in Margaret River, Western Australia, Australia.
• In addition to being known as "Huntsville International Airport", another name for HSV is "Carl T. Jones Field".
• This airport is in the National Plan of Integrated Airport Systems for 2011–2015, which called it a primary commercial service airport.Federal Aviation Administration records say the airport had 612,690 passenger boardings in calendar year 2008, 572,767 in 2009 and 606,127 in 2010.
• The closest airport to Huntsville International Airport (HSV) is Redstone Army Airfield (AAF) (HUA), which is located only 6 miles (9 kilometers) ENE of HSV.
• Currently only American Airlines and Delta Air Lines operate main line jets into the airport.

Facts about St. Louis Regional Airport (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.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.