Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Frying Pan Island (near Parry Sound), Ontario, Canada:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI), Frying Pan Island (near Parry Sound), Ontario, Canada would travel a Great Circle distance of 687 miles (or 1,106 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 St. Louis Downtown Airport and Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about St. Louis Downtown Airport (CPS):

• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• St. Louis Downtown Airport (CPS) has 3 runways.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI):

• In addition to being known as "Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome", another name for YSI is "CPS9".
• Because of Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome's relatively low elevation of 580 feet, planes can take off or land at Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome 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 Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI) is Parry Sound Area Municipal Airport (YPD), which is located only 16 miles (26 kilometers) ENE of YSI.
• The furthest airport from Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI) is Margaret River Airport (MGV), which is located 11,317 miles (18,213 kilometers) away in Margaret River, Western Australia, Australia.