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):

• Built and operated by the City of San Diego through the sale of municipal bonds to be repaid by airport users, then the San Diego Unified Port District, the airport is now operated by the San Diego County Regional Airport Authority.
• 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.
• The busiest route by flight count is to Los Angeles with 27 daily round trips on United Express, American Eagle, and Delta Connection.
• 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 closest airport to San Diego International Airport (SAN) is NAS North Island (NZY), which is located only 3 miles (5 kilometers) SSW of SAN.
• Aircraft do not land at the end of the runway as at most airports, but at a displaced threshold.
• The airport is near the site of the Ryan Airlines factory, but it is not the same as Dutch Flats, the Ryan airstrip where Charles Lindbergh flight tested the Spirit of St.
• San Diego International Airport (SAN) currently has only 1 runway.
• In addition to being known as "San Diego International Airport", another name for SAN is "Lindbergh Field".

Facts about St. Louis Regional Airport (ALN):

• In the spring of 2004 the airport was at the center of a scandal.
• 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.
• 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 2,250 acres airfield sits at 544 ft MSL.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• West Star Aviation is the largest fixed base operations company at the airport.
• 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.