Nonstop flight route between London, Ontario, Canada and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between London international Airport (YXU), London, Ontario, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 545 miles (or 877 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 London 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 London international Airport (YXU):

• London international Airport (YXU) has 2 runways.
• The closest airport to London international Airport (YXU) is St. Thomas Municipal Airport (YQS), which is located only 18 miles (29 kilometers) S of YXU.
• The airport was constructed in 1939 near Crumlin, on a location that was then outside the city limits of London but has since been annexed into the city.
• Shuttle service is available for passengers wishing to connect to flights at Toronto Pearson International Airport in Toronto.
• Because of London international Airport's relatively low elevation of 912 feet, planes can take off or land at London 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 London international Airport (YXU) is Margaret River Airport (MGV), which is located 11,359 miles (18,281 kilometers) away in Margaret River, Western Australia, Australia.
• In addition to being known as "London international Airport", another name for YXU is "London Metropolitan Area Airport".

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