Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Saga, Kyūshū, Japan:
Departure Airport:

Arrival Airport:

Distance from CPS to HSG:
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- About this route
- CPS Airport Information
- HSG Airport Information
- Facts about CPS
- Facts about HSG
- 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 HSG
- List of Nearest Airports to HSG
- Map of Furthest Airports from HSG
- List of Furthest Airports from HSG
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Saga Airport (HSG), Saga, Kyūshū, Japan would travel a Great Circle distance of 6,843 miles (or 11,013 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 Saga 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 Saga 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: | HSG / RJFS |
Airport Names: |
|
Location: | Saga, Kyūshū, Japan |
GPS Coordinates: | 33°8'58"N by 130°18'7"E |
Area Served: | Fukuoka–Kitakyushu metropolitan area |
Operator/Owner: | Saga Prefecture |
Airport Type: | Public |
Elevation: | 6 feet (2 meters) |
# of Runways: | 1 |
View all routes: | Routes from HSG |
More Information: | HSG 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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 airport opened in 1929 as Curtiss-Steinberg Airport.
Facts about Saga Airport (HSG):
- The furthest airport from Saga Airport (HSG) is Rio Grande Regional Airport (RIG), which is nearly antipodal to Saga Airport (meaning Saga Airport is almost on the exact opposite side of the Earth from Rio Grande Regional Airport), and is located 12,275 miles (19,755 kilometers) away in Rio Grande, Brazil.
- Because of Saga Airport's relatively low elevation of 6 feet, planes can take off or land at Saga 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.
- Saga Airport (HSG) currently has only 1 runway.
- In addition to being known as "Saga Airport", other names for HSG include "佐賀空港" and "Saga-kūkō".
- Saga Airport is an airport in the Kawasoe area of Saga, Saga Prefecture, Japan.
- The airport accommodated 313,200 outbound domestic passengers in 2012.
- The closest airport to Saga Airport (HSG) is Nagasaki Airport (NGS), which is located 28 miles (45 kilometers) SW of HSG.