Nonstop flight route between St. Louis, Missouri, United States and Horsham, Victoria, Australia:
Departure Airport:

Arrival Airport:

Distance from STL to HSM:
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- About this route
- STL Airport Information
- HSM Airport Information
- Facts about STL
- Facts about HSM
- 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 HSM
- List of Nearest Airports to HSM
- Map of Furthest Airports from HSM
- List of Furthest Airports from HSM
About this route:
A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Horsham Airport (HSM), Horsham, Victoria, Australia would travel a Great Circle distance of 9,602 miles (or 15,452 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 Horsham 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 Horsham 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: | HSM / YHSM |
Airport Name: | Horsham Airport |
Location: | Horsham, Victoria, Australia |
GPS Coordinates: | 36°40'10"S by 142°10'22"E |
Operator/Owner: | Horsham Rural City Council |
Airport Type: | Public |
Elevation: | 445 feet (136 meters) |
# of Runways: | 2 |
View all routes: | Routes from HSM |
More Information: | HSM Maps & Info |
Facts about Lambert–St. Louis International Airport (STL):
- Lambert–St. Louis International Airport (STL) has 4 runways.
- In 1925, the airport became home to Naval Air Station St.
- However, TWA faced increasing problems as overall airline demand softened in response to a softening overall economy.
- The September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
- Lambert's passenger traffic slowly rebounded from American Airlines' cuts of November 2003, increasing from a low of 13.4 million passengers enplaned in 2004, to 15.4 million by 2007, and increase of almost 15 percent.
- In early October 2009, Southwest Airlines announced the addition of 6 daily flights to several cities it already served from St.
- 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.
- 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.
- Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
- 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.
Facts about Horsham Airport (HSM):
- Because of Horsham Airport's relatively low elevation of 445 feet, planes can take off or land at Horsham 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.
- Horsham Airport (HSM) has 2 runways.
- The closest airport to Horsham Airport (HSM) is Ararat Airport (ARY), which is located 63 miles (102 kilometers) SE of HSM.
- The furthest airport from Horsham Airport (HSM) is Flores Airport (FLW), which is nearly antipodal to Horsham Airport (meaning Horsham Airport is almost on the exact opposite side of the Earth from Flores Airport), and is located 12,025 miles (19,352 kilometers) away in Flores Island, Azores, Portugal.