Nonstop flight route between Ottawa, Ontario, Canada and St. Helens, Tasmania, Australia:

About this route:

A direct, nonstop flight between Ottawa Macdonald–Cartier International Airport (YOW), Ottawa, Ontario, Canada and St Helens Airport (HLS), St. Helens, Tasmania, Australia would travel a Great Circle distance of 10,238 miles (or 16,477 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 Ottawa Macdonald–Cartier International Airport and St Helens Airport, 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 Ottawa Macdonald–Cartier International Airport and St Helens Airport. 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 Ottawa Macdonald–Cartier International Airport (YOW):

• On June 13, 1997, a North American Airlines Fairchild Swearingen Metroliner struck the runway with gear retracted during a botched approach, resulting in propellor strikes and a fire in one engine when it came to rest on runway 25.
• Ottawa Macdonald–Cartier International Airport (YOW) has 3 runways.
• During the 1950s, while the airport was still named Uplands and a joint-use civilian/military field, it was the busiest airport in Canada by takeoffs and landings, reaching a peak of 307,079 aircraft movements in 1959, nearly double its current traffic.
• The furthest airport from Ottawa Macdonald–Cartier International Airport (YOW) is Margaret River Airport (MGV), which is located 11,465 miles (18,451 kilometers) away in Margaret River, Western Australia, Australia.
• Because of Ottawa Macdonald–Cartier International Airport's relatively low elevation of 374 feet, planes can take off or land at Ottawa Macdonald–Cartier 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.
• Along with Air Canada, the airport was the joint winner of the 2010 Ottawa Tourism Award for Tourism Partnership of the Year in recognition of the co-operative work done in promoting Air Canada's non-stop flight between Frankfurt and Ottawa.
• The closest airport to Ottawa Macdonald–Cartier International Airport (YOW) is Ottawa/Rockcliffe Airport (YRO), which is located only 10 miles (15 kilometers) N of YOW.
• The airport actually consists of two distinct airfields connected by a taxiway.

Facts about St Helens Airport (HLS):

• The furthest airport from St Helens Airport (HLS) is Corvo Airport (CVU), which is nearly antipodal to St Helens Airport (meaning St Helens Airport is almost on the exact opposite side of the Earth from Corvo Airport), and is located 12,317 miles (19,823 kilometers) away in Corvo Island, Azores, Portugal.
• The closest airport to St Helens Airport (HLS) is Launceston Airport (LST), which is located 57 miles (92 kilometers) WSW of HLS.
• St Helens Airport (HLS) currently has only 1 runway.
• Because of St Helens Airport's relatively low elevation of 158 feet, planes can take off or land at St Helens 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.