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

Arrival Airport:

Distance from CPS to PHX:
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- About this route
- CPS Airport Information
- PHX Airport Information
- Facts about CPS
- Facts about PHX
- 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 PHX
- List of Nearest Airports to PHX
- Map of Furthest Airports from PHX
- List of Furthest Airports from PHX
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Phoenix Sky Harbor International Airport (PHX), Phoenix, Arizona, United States would travel a Great Circle distance of 1,269 miles (or 2,042 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 relatively short distance between St. Louis Downtown Airport and Phoenix Sky Harbor International Airport, the route shown on this map most likely still appears to be a straight line.
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: | PHX / KPHX |
Airport Name: | Phoenix Sky Harbor International Airport |
Location: | Phoenix, Arizona, United States |
GPS Coordinates: | 33°26'3"N by 112°0'42"W |
Area Served: | Phoenix metropolitan area |
Operator/Owner: | City of Phoenix |
Airport Type: | Public |
Elevation: | 1135 feet (346 meters) |
# of Runways: | 3 |
View all routes: | Routes from PHX |
More Information: | PHX Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport closed in 1959 and reopened six years later as Bi-State Parks 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- 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 Phoenix Sky Harbor International Airport (PHX):
- The closest airport to Phoenix Sky Harbor International Airport (PHX) is Scottsdale Airport (SCF), which is located only 14 miles (23 kilometers) NNE of PHX.
- In October 1989 ground was broken for Terminal 4, the largest terminal.
- America West filed for Chapter 11 bankruptcy protection in 1991 and sold its larger aircraft and Japanese route authority, but continued growing its domestic operations from Terminal 4 in cooperation with Continental Airlines.
- The furthest airport from Phoenix Sky Harbor International Airport (PHX) is Sir Gaëtan Duval Airport (RRG), which is located 11,450 miles (18,427 kilometers) away in Rodrigues Island, Mauritius.
- The airport's master plan was redesigned in 1959 to eliminate the cross runway to make room for new terminals.
- Sky Harbor was the fourth airport built in Phoenix.
- Terminal 4, also designed by DWL Architects + Planners, Inc., opened in 1990 and has more than 90 gates, divided into seven satellite concourses connected behind security.
- Phoenix Sky Harbor International Airport is a civil-military public airport 3 miles southeast of downtown Phoenix, in Maricopa County, Arizona.
- Terminal 2 is expected to close after the completion of the Terminal 3 South Concourse expansion.
- The airport is the primary regional hub and gateway for Mexican and Hawaiian departures for Tempe-based US Airways and is a focus city for Southwest Airlines.
- Phoenix Sky Harbor International Airport (PHX) has 3 runways.