Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Hamilton Island, Queensland, Australia:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Great Barrier Reef Airport (HTI), Hamilton Island, Queensland, Australia would travel a Great Circle distance of 8,733 miles (or 14,054 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. Louis Downtown Airport and Great Barrier Reef 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 St. Louis Downtown Airport and Great Barrier Reef 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 St. Louis Downtown Airport (CPS):

• 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.
• 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• 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.

Facts about Great Barrier Reef Airport (HTI):

• The furthest airport from Great Barrier Reef Airport (HTI) is Agostinho Neto Airport (NTO), which is located 11,990 miles (19,297 kilometers) away in Ponta do Sol, Santo Antão, Cape Verde.
• Great Barrier Reef Airport handled 457,641 passengers last year.
• The closest airport to Great Barrier Reef Airport (HTI) is Whitsunday Airport (WSY), which is located only 14 miles (22 kilometers) WNW of HTI.
• Because of Great Barrier Reef Airport's relatively low elevation of 15 feet, planes can take off or land at Great Barrier Reef 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.
• In addition to being known as "Great Barrier Reef Airport", another name for HTI is "Hamilton Island".
• Great Barrier Reef Airport (HTI) currently has only 1 runway.
• In the year ending 30 June 2011 the airport handled 457,641 passengers making it the 19th busiest airport in Australia.