Nonstop flight route between Sioux City, Iowa, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Sioux Gateway Airport (SUX), Sioux City, Iowa, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 411 miles (or 662 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 Sioux Gateway 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 Sioux Gateway Airport (SUX):

• For several years the only airline service was from Northwest Airlines, commuter service on Northwest Airlink to Minneapolis–Saint Paul International Airport.
• Sioux Gateway Airport covers 2,460 acres at an elevation of 1,098 feet above mean sea level.
• The closest airport to Sioux Gateway Airport (SUX) is Le Mars Municipal Airport (LRJ), which is located 28 miles (45 kilometers) NNE of SUX.
• The construction of Sioux City Army Air Base began in March 1942, about three months after the Japanese attack on Pearl Harbor.
• In addition to being known as "Sioux Gateway Airport", another name for SUX is "Colonel Bud Day Field".
• The airport is owned and operated by the City of Sioux City and governed by a seven member Airport Board of Trustees.
• The furthest airport from Sioux Gateway Airport (SUX) is Margaret River Airport (MGV), which is located 10,641 miles (17,125 kilometers) away in Margaret River, Western Australia, Australia.
• In the year ending November 30, 2012 the airport had 18,258 aircraft operations, an average of 50 per day.
• Sioux Gateway Airport (SUX) has 2 runways.

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