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

Arrival Airport:

Distance from CPS to UMD:
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- About this route
- CPS Airport Information
- UMD Airport Information
- Facts about CPS
- Facts about UMD
- 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 UMD
- List of Nearest Airports to UMD
- Map of Furthest Airports from UMD
- List of Furthest Airports from UMD
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Uummannaq Heliport (UMD), Uummannaq, Greenland would travel a Great Circle distance of 2,599 miles (or 4,183 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 Uummannaq Heliport, 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 Uummannaq Heliport. 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: | UMD / BGUM |
Airport Name: | Uummannaq Heliport |
Location: | Uummannaq, Greenland |
GPS Coordinates: | 70°40'46"N by 52°7'1"W |
Area Served: | Uummannaq, Greenland |
Operator/Owner: | Mittarfeqarfiit |
Airport Type: | Public |
Elevation: | 50 feet (15 meters) |
View all routes: | Routes from UMD |
More Information: | UMD 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 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- 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.
Facts about Uummannaq Heliport (UMD):
- Neighboring Qaarsut Airport, located on Nuussuaq Peninsula on the other side of the Uummannaq fjord is the only daily connection available from Uummannaq, serving Dash-7 aircraft of Air Greenland.
- The closest airport to Uummannaq Heliport (UMD) is Qaarsut Airport (JQA), which is located only 14 miles (22 kilometers) WNW of UMD.
- The furthest airport from Uummannaq Heliport (UMD) is Hobart International Airport (HBA), which is located 10,397 miles (16,732 kilometers) away in Hobart, Tasmania, Australia.
- Because of Uummannaq Heliport's relatively low elevation of 50 feet, planes can take off or land at Uummannaq Heliport 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.
- Air Greenland Bell 212 helicopter approaching helipad
- Air Greenland operates government contract flights to villages in the Uummannaq Fjord region.