Nonstop flight route between San Diego, California, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between San Diego International Airport (SAN), San Diego, California, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,573 miles (or 2,531 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 San Diego 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 San Diego International Airport (SAN):

• Runway 27, is a localizer-only approach and is unusable for landing when visibility drops below about 2 miles.
• Pacific Southwest Airlines established its headquarters in San Diego and started service at Lindbergh Field in 1949.
• In February 2008, San Diego International Airport was one of the first major airports in the U.S.
• San Diego International Airport (SAN) currently has only 1 runway.
• The closest airport to San Diego International Airport (SAN) is NAS North Island (NZY), which is located only 3 miles (5 kilometers) SSW of SAN.
• In addition to being known as "San Diego International Airport", another name for SAN is "Lindbergh Field".
• The top five airlines by market share in 2011 are Southwest Airlines, United Airlines, Delta Air Lines, American Airlines, and Alaska Airlines.
• Inspired by Lindbergh's flight and excited to have made his plane, the city of San Diego passed a bond issue in 1928 for the construction of a two-runway municipal airport.
• Because of San Diego International Airport's relatively low elevation of 17 feet, planes can take off or land at San Diego 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 furthest airport from San Diego International Airport (SAN) is Sir Gaëtan Duval Airport (RRG), which is located 11,540 miles (18,571 kilometers) away in Rodrigues Island, Mauritius.

Facts about St. Louis Regional Airport (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.
• 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• 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 2,250 acres airfield sits at 544 ft MSL.