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

Arrival Airport:

Distance from CPS to HNL:
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- About this route
- CPS Airport Information
- HNL Airport Information
- Facts about CPS
- Facts about HNL
- 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 HNL
- List of Nearest Airports to HNL
- Map of Furthest Airports from HNL
- List of Furthest Airports from HNL
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Honolulu International Airport (HNL), Honolulu, Hawaii, United States would travel a Great Circle distance of 4,135 miles (or 6,655 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 Honolulu 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 Honolulu 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: | HNL / PHNL |
Airport Name: | Honolulu International Airport |
Location: | Honolulu, Hawaii, United States |
GPS Coordinates: | 21°19'6"N by 157°55'21"W |
Area Served: | Honolulu, Island of O'ahu |
Operator/Owner: | State of Hawaii |
Airport Type: | Public / Military |
Elevation: | 13 feet (4 meters) |
# of Runways: | 6 |
View all routes: | Routes from HNL |
More Information: | HNL Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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.
Facts about Honolulu International Airport (HNL):
- As part of the modernization, flight display monitors throughout the airport have been upgraded, new food and beverage vendors have been added, and a new parking garage across from the International Arrivals terminal has been completed.
- The closest airport to Honolulu International Airport (HNL) is Hickam Field (HIK), which is located only 0 mile (0 kilometer) N of HNL.
- Honolulu International Airport (HNL) has 6 runways.
- Honolulu International Airport serves as the principal hub of Hawaiian Airlines, the largest Hawaii-based airline.
- Because of Honolulu International Airport's relatively low elevation of 13 feet, planes can take off or land at Honolulu International 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.
- John Rodgers Airport was renamed Honolulu Airport in 1947.
- The largest airline at Honolulu airport is Hawaiian Airlines offering 13,365 seats per day, which represents a 45% market share.
- The furthest airport from Honolulu International Airport (HNL) is Ghanzi Airport (GNZ), which is nearly antipodal to Honolulu International Airport (meaning Honolulu International Airport is almost on the exact opposite side of the Earth from Ghanzi Airport), and is located 12,399 miles (19,955 kilometers) away in Ghanzi, Botswana.