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

About this route:

A direct, nonstop flight between Ottawa/Rockcliffe Airport (YRO), Ottawa, Ontario, Canada and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 864 miles (or 1,390 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 Ottawa/Rockcliffe 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 Ottawa/Rockcliffe Airport (YRO):

• Ottawa/Rockcliffe Airport (YRO) currently has only 1 runway.
• During the 1970s the airport was also used for scheduled short takeoff and landing commercial flights to the short-lived Victoria STOLport near downtown Montreal.
• The closest airport to Ottawa/Rockcliffe Airport (YRO) is Gatineau-Ottawa Executive Airport (YND), which is located only 6 miles (9 kilometers) NE of YRO.
• The military left the airport completely in 1994, but their aircraft collection remained to form the nucleus of the Canada Aviation Museum.
• Because of Ottawa/Rockcliffe Airport's relatively low elevation of 188 feet, planes can take off or land at Ottawa/Rockcliffe 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 Ottawa/Rockcliffe Airport (YRO) is Margaret River Airport (MGV), which is located 11,458 miles (18,440 kilometers) away in Margaret River, Western Australia, Australia.

Facts about St. Louis Regional Airport (ALN):

• Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
• 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.
• 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.
• 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.
• 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.