Nonstop flight route between St. Thomas, Ontario, Canada and Georgetown, Ascension Island, Saint Helena:

About this route:

A direct, nonstop flight between St. Thomas Municipal Airport (YQS), St. Thomas, Ontario, Canada and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 5,449 miles (or 8,769 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 large distance between St. Thomas Municipal Airport and RAF Ascension, the route shown on this map most likely appears curved because of this reason.

Try it at home! Get a globe and tightly lay a string between St. Thomas Municipal Airport and RAF Ascension. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about St. Thomas Municipal Airport (YQS):

• St. Thomas Municipal Airport (YQS) has 3 runways.
• 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 is in uncontrolled airspace but has a UNICOM operating during working hours on 122.70 MHz.
• 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.
• 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.

Facts about RAF Ascension (ASI):

• Ascension serves as a diversion airport for ETOPS aircraft crossing the Atlantic.
• The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
• RAF Ascension Island was re-garrisoned by the RAF in 1982 and used extensively as a staging base during the Falklands War.
• In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".
• The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
• In 1939 Ascension became important as a HF/DF radio station covering trade routes.
• Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.