Nonstop flight route between Riyadh, Saudi Arabia and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from RUH to CPS:
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- About this route
- RUH Airport Information
- CPS Airport Information
- Facts about RUH
- Facts about CPS
- Map of Nearest Airports to RUH
- List of Nearest Airports to RUH
- Map of Furthest Airports from RUH
- List of Furthest Airports from RUH
- 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 King Khalid International Airport (RUH), Riyadh, Saudi Arabia and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 7,235 miles (or 11,644 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 King Khalid International 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 King Khalid International 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: | RUH / OERK |
Airport Names: |
|
Location: | Riyadh, Saudi Arabia |
GPS Coordinates: | 24°57'28"N by 46°41'56"E |
Area Served: | Riyadh |
Operator/Owner: | The Saudi General Authority of Civil Aviation (GACA) |
Airport Type: | Public |
Elevation: | 2049 feet (625 meters) |
# of Runways: | 2 |
View all routes: | Routes from RUH |
More Information: | RUH 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 King Khalid International Airport (RUH):
- The United States Air Force effectively took over these facilities temporarily from August 1990 through May 1991 as an airbase for aerial refueling tanker operations in support of the Gulf War.
- Additional passenger conveniences in the terminal complex include 80 elevators and escalators.
- Centrally located in the passenger terminal complex, between the Royal Pavilion and the mosque is the air traffic control tower standing at 81 metres high.
- In addition to being known as "King Khalid International Airport", another name for RUH is "مطار الملك خالد الدولي".
- The furthest airport from King Khalid International Airport (RUH) is Totegegie Airport (GMR), which is nearly antipodal to King Khalid International Airport (meaning King Khalid International Airport is almost on the exact opposite side of the Earth from Totegegie Airport), and is located 12,273 miles (19,752 kilometers) away in Mangareva, Gambier Islands, French Polynesia.
- King Khalid International Airport handled 13,919,000 passengers last year.
- The closest airport to King Khalid International Airport (RUH) is Dawadmi Domestic Airport (DWD), which is located 166 miles (266 kilometers) WSW of RUH.
- King Khalid International Airport (RUH) has 2 runways.
- Two large three-level garages have been constructed directly in front of the passenger terminals, one on either side of the airport mosque.
Facts about St. Louis Downtown Airport (CPS):
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.