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):

• 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.
• The first scheduled jet flights at Lindbergh Field were in 1960, American Airlines Boeing 720s to Phoenix and United Airlines 720s to San Francisco.
• San Diego International Airport (SAN) currently has only 1 runway.
• The airport was the first federally certified airfield to serve all aircraft types, including seaplanes.
• In addition to being known as "San Diego International Airport", another name for SAN is "Lindbergh Field".
• 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.
• As of December 2012, San Diego International Airport is served by 22 passenger airlines and five cargo airlines which fly nonstop to 54 destinations in the United States, Canada, Mexico, Great Britain, and Japan.
• 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.
• Most takeoffs and landings at SAN are from east to west.

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.
• In the spring of 2004 the airport was at the center of a scandal.
• St. Louis Regional Airport (ALN) has 2 runways.
• The 2,250 acres airfield sits at 544 ft MSL.
• 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.