Nonstop flight route between St. Thomas, Ontario, Canada and Chicago, Illinois, United States:

About this route:

A direct, nonstop flight between St. Thomas Municipal Airport (YQS), St. Thomas, Ontario, Canada and Chicago O'Hare International Airport (ORD), Chicago, Illinois, United States would travel a Great Circle distance of 351 miles (or 565 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. Thomas Municipal Airport and Chicago O'Hare International Airport, the route shown on this map most likely still appears to be a straight line.

Departure Airport Information:

Arrival Airport Information:

Facts about St. Thomas Municipal Airport (YQS):

• The airport is in uncontrolled airspace but has a UNICOM operating during working hours on 122.70 MHz.
• Because of St. Thomas Municipal Airport's relatively low elevation of 779 feet, planes can take off or land at St. Thomas Municipal 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 airport was purchased by the City of St.
• St. Thomas Municipal Airport (YQS) has 3 runways.
• The airport is classified as an airport of entry by NAV CANADA and is staffed by the Canada Border Services Agency.
• The closest airport to St. Thomas Municipal Airport (YQS) is London international Airport (YXU), which is located only 18 miles (29 kilometers) N of YQS.
• The furthest airport from St. Thomas Municipal Airport (YQS) is Margaret River Airport (MGV), which is located 11,370 miles (18,298 kilometers) away in Margaret River, Western Australia, Australia.

Facts about Chicago O'Hare International Airport (ORD):

• The closest airport to Chicago O'Hare International Airport (ORD) is Chicago Executive Airport (PWK), which is located only 9 miles (15 kilometers) N of ORD.
• Following the closure of the O'Hare Air Reserve Station, the former USAF facilities were redeveloped for air cargo and general aviation.
• Chicago O'Hare International Airport (ORD) has 8 runways.
• The original Douglas Aircraft C-54 Skymaster transport manufacturing plant on the northeast side of the airport became a United States Air Force Air National Guard and Air Force Reserve facility after World War II.
• Because of Chicago O'Hare International Airport's relatively low elevation of 668 feet, planes can take off or land at Chicago O'Hare 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 airport was constructed in 1942–43 as a manufacturing plant for Douglas C-54s during World War II.
• The furthest airport from Chicago O'Hare International Airport (ORD) is Margaret River Airport (MGV), which is located 11,071 miles (17,817 kilometers) away in Margaret River, Western Australia, Australia.
• American Airlines, United Airlines and Trans World Airlines had many routes to the West Coast, Northeast and Midwest.