Nonstop flight route between St. Louis, Missouri, United States and Mascot (near Sydney), Australia:
Departure Airport:

Arrival Airport:

Distance from STL to SYD:
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- About this route
- STL Airport Information
- SYD Airport Information
- Facts about STL
- Facts about SYD
- Map of Nearest Airports to STL
- List of Nearest Airports to STL
- Map of Furthest Airports from STL
- List of Furthest Airports from STL
- Map of Nearest Airports to SYD
- List of Nearest Airports to SYD
- Map of Furthest Airports from SYD
- List of Furthest Airports from SYD
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Sydney (Kingsford Smith) Airport (SYD), Mascot (near Sydney), Australia would travel a Great Circle distance of 9,061 miles (or 14,582 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 Lambert–St. Louis International Airport and Sydney (Kingsford Smith) 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 Lambert–St. Louis International Airport and Sydney (Kingsford Smith) Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | STL / KSTL |
Airport Name: | Lambert–St. Louis International Airport |
Location: | St. Louis, Missouri, United States |
GPS Coordinates: | 38°44'49"N by 90°21'41"W |
Area Served: | Greater St. Louis, Missouri |
Operator/Owner: | City of St. Louis |
Airport Type: | Public |
Elevation: | 605 feet (184 meters) |
# of Runways: | 4 |
View all routes: | Routes from STL |
More Information: | STL Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | SYD / YSSY |
Airport Names: |
|
Location: | Mascot (near Sydney), Australia |
GPS Coordinates: | 33°56'45"S by 151°10'37"E |
Area Served: | Sydney |
Operator/Owner: | Sydney Airport Corporation Limited |
Airport Type: | Public |
Elevation: | 21 feet (6 meters) |
# of Runways: | 3 |
View all routes: | Routes from SYD |
More Information: | SYD Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- By September 2002, Lambert's passenger traffic had declined by 16.9% from before the terrorist attacks a year earlier, which was the 8th biggest percentage drop of the major US airports.
- The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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 closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
- Lambert–St. Louis International Airport (STL) has 4 runways.
- In early October 2009, Southwest Airlines announced the addition of 6 daily flights to several cities it already served from St.
- In 1925, the airport became home to Naval Air Station St.
Facts about Sydney (Kingsford Smith) Airport (SYD):
- 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 airport provides a shuttle service between the terminals at a cost of A$5.50.
- Sydney (Kingsford Smith) Airport (SYD) has 3 runways.
- In December 2011, Sydney Airport announced a proposal to divide the airport into two airline-alliance-based precincts.
- 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.
- Sydney Airport's International terminal underwent a $500 million renovation that was completed in mid-2010.
- The Federal Government has bought most of the required land in a proposed site at Badgerys Creek, west of Sydney.
- By the 1960s the need for a new international terminal had become apparent, and work commenced in late 1966.
- The new terminal was officially opened on 3 May 1970, by Queen Elizabeth II.
- 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.
- In addition to being known as "Sydney (Kingsford Smith) Airport", another name for SYD is "Kingsford-Smith Airport".