Nonstop flight route between Ashburton, New Zealand and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from ASG to CPS:
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- About this route
- ASG Airport Information
- CPS Airport Information
- Facts about ASG
- Facts about CPS
- Map of Nearest Airports to ASG
- List of Nearest Airports to ASG
- Map of Furthest Airports from ASG
- List of Furthest Airports from ASG
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
About this route:
A direct, nonstop flight between Ashburton Aerodrome (ASG), Ashburton, New Zealand and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 8,343 miles (or 13,426 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 Ashburton Aerodrome 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 Ashburton Aerodrome 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:
IATA / ICAO Codes: | ASG / NZAS |
Airport Name: | Ashburton Aerodrome |
Location: | Ashburton, New Zealand |
GPS Coordinates: | 43°54'11"S by 171°47'48"E |
Operator/Owner: | Ashburton Airport Authority |
Airport Type: | Public |
Elevation: | 298 feet (91 meters) |
# of Runways: | 4 |
View all routes: | Routes from ASG |
More Information: | ASG Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CPS / KCPS |
Airport Name: | St. Louis Downtown Airport |
Location: | Cahokia, Illinois (near St. Louis), United States |
GPS Coordinates: | 38°34'14"N by 90°9'21"W |
Area Served: | Greater St. Louis |
Operator/Owner: | Bi-State Development Agency |
Airport Type: | Public |
Elevation: | 413 feet (126 meters) |
# of Runways: | 3 |
View all routes: | Routes from CPS |
More Information: | CPS Maps & Info |
Facts about Ashburton Aerodrome (ASG):
- Because of Ashburton Aerodrome's relatively low elevation of 298 feet, planes can take off or land at Ashburton Aerodrome 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.
- Ashburton Aerodrome (ASG) has 4 runways.
- The closest airport to Ashburton Aerodrome (ASG) is Richard Pearse Airport (Timaru Airport) (TIU), which is located 40 miles (64 kilometers) SW of ASG.
- The furthest airport from Ashburton Aerodrome (ASG) is A Coruña Airport (LCG), which is nearly antipodal to Ashburton Aerodrome (meaning Ashburton Aerodrome is almost on the exact opposite side of the Earth from A Coruña Airport), and is located 12,394 miles (19,947 kilometers) away in A Coruña, Spain.
Facts about St. Louis Downtown Airport (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.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.