Nonstop flight route between Lympne, Kent, England, United Kingdom and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from LYM to CPS:
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- About this route
- LYM Airport Information
- CPS Airport Information
- Facts about LYM
- Facts about CPS
- Map of Nearest Airports to LYM
- List of Nearest Airports to LYM
- Map of Furthest Airports from LYM
- List of Furthest Airports from LYM
- 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 Lympne Airport (LYM), Lympne, Kent, England, United Kingdom and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 4,259 miles (or 6,854 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 Lympne Airport 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 Lympne Airport 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: | LYM / EGMK |
Airport Names: |
|
Location: | Lympne, Kent, England, United Kingdom |
GPS Coordinates: | 51°4'58"N by 1°1'1"E |
Area Served: | Ashford, Kent, Hythe, Kent |
Operator/Owner: | Royal Flying Corps (1916–18) Royal Air Force (1918–19) civil (1919–39) Fleet Air Arm (1939–40) Royal Air Force (1940–46) civil (1946–84) |
Airport Type: | Closed |
Elevation: | 351 feet (107 meters) |
# of Runways: | 1 |
View all routes: | Routes from LYM |
More Information: | LYM 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 Lympne Airport (LYM):
- Lympne Airport (LYM) currently has only 1 runway.
- Because of Lympne Airport's relatively low elevation of 351 feet, planes can take off or land at Lympne 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.
- In May 1919, Lympne was one of the first four customs and excise "Appointed Aerodromes" in the United Kingdom.
- In May 1939, Lympne was transferred to Fighter Command.
- On 1 August 1931, the 601 Squadron AuxAF began its annual camp at Lympne.
- A Junkers F.13 called at Lympne on 10 January 1923 to clear customs and then flew to Croydon where it was inspected by Secretary of State for Air Sir Samuel Hoare.
- The closest airport to Lympne Airport (LYM) is Lydd International Airport (LYX), which is located only 9 miles (15 kilometers) SSW of LYM.
- In addition to being known as "Lympne Airport", another name for LYM is "Ashford Airport".
- The furthest airport from Lympne Airport (LYM) is Chatham Islands (CHT), which is located 11,921 miles (19,184 kilometers) away in Waitangi, Chatham Islands, New Zealand.
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.
- 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.
- 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.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.