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

Arrival Airport:

Distance from GTN to CPS:
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- About this route
- GTN Airport Information
- CPS Airport Information
- Facts about GTN
- Facts about CPS
- Map of Nearest Airports to GTN
- List of Nearest Airports to GTN
- Map of Furthest Airports from GTN
- List of Furthest Airports from GTN
- 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 Glentanner Aerodrome (GTN), Mount Cook, New Zealand and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 8,418 miles (or 13,547 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 Glentanner 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 Glentanner 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: | GTN / NZGT |
Airport Name: | Glentanner Aerodrome |
Location: | Mount Cook, New Zealand |
GPS Coordinates: | 43°54'24"S by 170°7'41"E |
Operator/Owner: | Mr R K Ivey, Glentanner Station |
Airport Type: | Public |
Elevation: | 1824 feet (556 meters) |
# of Runways: | 1 |
View all routes: | Routes from GTN |
More Information: | GTN 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 Glentanner Aerodrome (GTN):
- The closest airport to Glentanner Aerodrome (GTN) is Mount Cook Airport (MON), which is located only 10 miles (16 kilometers) N of GTN.
- Glentanner Aerodrome (GTN) currently has only 1 runway.
- The furthest airport from Glentanner Aerodrome (GTN) is A Coruña Airport (LCG), which is nearly antipodal to Glentanner Aerodrome (meaning Glentanner Aerodrome is almost on the exact opposite side of the Earth from A Coruña Airport), and is located 12,351 miles (19,877 kilometers) away in A Coruña, Spain.
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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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.
- 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.