Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ulan-Ude, Republic of Buryatia, Russia:
Departure Airport:

Arrival Airport:

Distance from CPS to UUD:
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- About this route
- CPS Airport Information
- UUD Airport Information
- Facts about CPS
- Facts about UUD
- 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 UUD
- List of Nearest Airports to UUD
- Map of Furthest Airports from UUD
- List of Furthest Airports from UUD
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Baikal International Airport (UUD), Ulan-Ude, Republic of Buryatia, Russia would travel a Great Circle distance of 6,103 miles (or 9,821 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 Baikal International 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 Baikal International 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: | UUD / UIUU |
Airport Names: |
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Location: | Ulan-Ude, Republic of Buryatia, Russia |
GPS Coordinates: | 51°48'26"N by 107°26'15"E |
Area Served: | Ulan-Ude |
Operator/Owner: | Russian Federation |
Airport Type: | Public / Military |
# of Runways: | 3 |
View all routes: | Routes from UUD |
More Information: | UUD 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.
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- 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 Baikal International Airport (UUD):
- The closest airport to Baikal International Airport (UUD) is International Airport Irkutsk (IKT), which is located 133 miles (215 kilometers) WNW of UUD.
- In addition to being known as "Baikal International Airport", another name for UUD is "Международный Аэропорт Байкал".
- Baikal International Airport (UUD) has 3 runways.
- The furthest airport from Baikal International Airport (UUD) is Teniente Julio Gallardo Airfield (PNT), which is nearly antipodal to Baikal International Airport (meaning Baikal International Airport is almost on the exact opposite side of the Earth from Teniente Julio Gallardo Airfield), and is located 12,427 miles (20,000 kilometers) away in Puerto Natales, Chile.