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

Arrival Airport:

Distance from UPP to CPS:
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- About this route
- UPP Airport Information
- CPS Airport Information
- Facts about UPP
- Facts about CPS
- Map of Nearest Airports to UPP
- List of Nearest Airports to UPP
- Map of Furthest Airports from UPP
- List of Furthest Airports from UPP
- 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 Upolu Airport (UPP), Hawi, Hawaii, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 4,064 miles (or 6,540 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 Upolu 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 Upolu 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: | UPP / PHUP |
Airport Name: | Upolu Airport |
Location: | Hawi, Hawaii, United States |
GPS Coordinates: | 20°15'55"N by 155°51'36"W |
Area Served: | Hawi, Hawaii |
Operator/Owner: | Hawaii Department of Transportation |
Airport Type: | Public |
Elevation: | 96 feet (29 meters) |
# of Runways: | 1 |
View all routes: | Routes from UPP |
More Information: | UPP 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 Upolu Airport (UPP):
- Upolu Airport is part of a centralized state structure governing all of the airports and seaports of Hawai'i.
- As a general aviation airport, Upolu Airport has a single runway without taxiways and two aircraft parking areas south of the runway.
- Upolu Airport was originally built in 1927 for the United States Air Service to be under the control and management of the War Department.
- Upolu Airport covers an area of 82 acres at an elevation of 96 feet above mean sea level.
- The closest airport to Upolu Airport (UPP) is Waimea-Kohala Airport (MUE), which is located 22 miles (36 kilometers) SE of UPP.
- The furthest airport from Upolu Airport (UPP) is Maun Airport (MUB), which is nearly antipodal to Upolu Airport (meaning Upolu Airport is almost on the exact opposite side of the Earth from Maun Airport), and is located 12,387 miles (19,934 kilometers) away in Maun, Botswana.
- Upolu Airport (UPP) currently has only 1 runway.
- Because of Upolu Airport's relatively low elevation of 96 feet, planes can take off or land at Upolu 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.
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 airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
- 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 closed in 1959 and reopened six years later as Bi-State Parks Airport.