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

Arrival Airport:

Distance from CPS to HLY:
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- About this route
- CPS Airport Information
- HLY Airport Information
- Facts about CPS
- Facts about HLY
- 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 HLY
- List of Nearest Airports to HLY
- Map of Furthest Airports from HLY
- List of Furthest Airports from HLY
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Anglesey Airport (HLY), Anglesey, Wales, United Kingdom would travel a Great Circle distance of 3,982 miles (or 6,409 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 Anglesey 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 Anglesey 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: | HLY / EGOV |
Airport Names: |
|
Location: | Anglesey, Wales, United Kingdom |
GPS Coordinates: | 53°14'53"N by 4°32'7"W |
Area Served: | Anglesey Gwynedd |
Operator/Owner: | Operon |
Airport Type: | Military/Public |
Elevation: | 37 feet (11 meters) |
# of Runways: | 3 |
View all routes: | Routes from HLY |
More Information: | HLY Maps & Info |
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.
- 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.
- 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.
Facts about Anglesey Airport (HLY):
- Because of Anglesey Airport's relatively low elevation of 37 feet, planes can take off or land at Anglesey 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 furthest airport from Anglesey Airport (HLY) is Ryan's Creek Aerodrome (SZS), which is located 11,891 miles (19,136 kilometers) away in Stewart Island, New Zealand.
- The closest airport to Anglesey Airport (HLY) is Isle of Man Airport (IOM), which is located 58 miles (93 kilometers) N of HLY.
- In addition to being known as "Anglesey Airport", other names for HLY include "Maes Awyr Môn", "RAF Valley" and "VLY".
- For residents of Anglesey, the air service is significantly quicker than surface transport.
- Anglesey Airport (HLY) has 3 runways.