Nonstop flight route between Mascot (near Sydney), Australia and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Sydney (Kingsford Smith) Airport (SYD), Mascot (near Sydney), Australia and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 9,068 miles (or 14,594 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 Sydney (Kingsford Smith) Airport and St. Louis Downtown 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 Sydney (Kingsford Smith) Airport and St. Louis Downtown 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 Sydney (Kingsford Smith) Airport (SYD):

• Terminal 1 was opened on 3 May 1970, replacing the old Overseas Passenger Terminal and has been greatly expanded since then.
• On 15 April 2014, the Federal Government announced that Badgerys Creek would be Sydney's second international airport, to be known as Western Sydney Airport.
• The closest airport to Sydney (Kingsford Smith) Airport (SYD) is Bankstown Airport (BWU), which is located only 11 miles (18 kilometers) W of SYD.
• The furthest airport from Sydney (Kingsford Smith) Airport (SYD) is Santa Maria Airport (SMA), which is nearly antipodal to Sydney (Kingsford Smith) Airport (meaning Sydney (Kingsford Smith) Airport is almost on the exact opposite side of the Earth from Santa Maria Airport), and is located 12,144 miles (19,543 kilometers) away in Santa Maria, Portugal.
• Because of Sydney (Kingsford Smith) Airport's relatively low elevation of 21 feet, planes can take off or land at Sydney (Kingsford Smith) 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.
• Love established Mascot as a private concern, leasing 200 acres from the Kensington Race Club for three years.
• In 1995 the Australian Parliament passed the Sydney Airport Curfew Act 1995, which limits the operating hours of the airport.
• The dedicated Freight Terminal is located north of Terminal 1.
• In addition to being known as "Sydney (Kingsford Smith) Airport", another name for SYD is "Kingsford-Smith Airport".
• Sydney (Kingsford Smith) Airport (SYD) has 3 runways.

Facts about St. Louis Downtown Airport (CPS):

• St. Louis Downtown Airport (CPS) has 3 runways.
• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
• 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.
• 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.
• 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.