Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Grosseto, Italy:
Departure Airport:

Arrival Airport:

Distance from CPS to GRS:
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- About this route
- CPS Airport Information
- GRS Airport Information
- Facts about CPS
- Facts about GRS
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to GRS
- List of Nearest Airports to GRS
- Map of Furthest Airports from GRS
- List of Furthest Airports from GRS
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Grosseto Airport (GRS), Grosseto, Italy would travel a Great Circle distance of 4,964 miles (or 7,989 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 St. Louis Downtown Airport and Grosseto 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 St. Louis Downtown Airport and Grosseto Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | GRS / LIRS |
Airport Names: |
|
Location: | Grosseto, Italy |
GPS Coordinates: | 42°45'34"N by 11°4'18"E |
Area Served: | Grosseto, Italy |
Operator/Owner: | Aeronautica Militare / Società di Esercizio dell'Aeroporto della Maremma S.p.A. (SEAM) |
Airport Type: | Military / Public |
Elevation: | 15 feet (5 meters) |
# of Runways: | 2 |
View all routes: | Routes from GRS |
More Information: | GRS Maps & Info |
Facts about St. Louis Downtown Airport (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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
Facts about Grosseto Airport (GRS):
- The airport resides at an elevation of 15 feet above mean sea level.
- Grosseto Airport handled 4,382 passengers last year.
- In addition to being known as "Grosseto Airport", other names for GRS include "Aeroporto di Grosseto" and "Grosseto Airport".
- Because of Grosseto Airport's relatively low elevation of 15 feet, planes can take off or land at Grosseto 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.
- Grosseto Airport (GRS) has 2 runways.
- The closest airport to Grosseto Airport (GRS) is Siena-Ampugnano Airport (SAY), which is located 36 miles (57 kilometers) NNE of GRS.
- Grosseto Airport is an airport in central Italy, located 3 km west of Grosseto in the Italian region of Tuscany.
- The furthest airport from Grosseto Airport (GRS) is Chatham Islands (CHT), which is nearly antipodal to Grosseto Airport (meaning Grosseto Airport is almost on the exact opposite side of the Earth from Chatham Islands), and is located 12,051 miles (19,395 kilometers) away in Waitangi, Chatham Islands, New Zealand.