Nonstop flight route between Santa Ana, California, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:

Arrival Airport:

Distance from SNA to CPS:
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- About this route
- SNA Airport Information
- CPS Airport Information
- Facts about SNA
- Facts about CPS
- Map of Nearest Airports to SNA
- List of Nearest Airports to SNA
- Map of Furthest Airports from SNA
- List of Furthest Airports from SNA
- 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 John Wayne Airport (SNA), Santa Ana, California, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 1,577 miles (or 2,538 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 John Wayne Airport and St. Louis Downtown Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | SNA / KSNA |
Airport Name: | John Wayne Airport |
Location: | Santa Ana, California, United States |
GPS Coordinates: | 33°40'32"N by 117°52'5"W |
Area Served: | Orange County, California |
Operator/Owner: | Orange County |
Airport Type: | Public |
Elevation: | 56 feet (17 meters) |
# of Runways: | 2 |
View all routes: | Routes from SNA |
More Information: | SNA 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 John Wayne Airport (SNA):
- John Wayne Airport is an international airport in Orange County, California, with its mailing address in the city of Santa Ana, hence the IATA airport code.
- After the Orange County Airport was renamed John Wayne Airport in 1979, the John Wayne Associates commissioned sculptor Robert Summers to create a bronze statue of "the Duke." The 9-foot statue, created at Hoka Hey Foundry in Dublin, Texas, was dedicated to the County on November 4, 1982.
- As of 2009, the largest airlines at John Wayne Airport were Southwest Airlines, United Airlines, American Airlines, Air Tran, and Alaska Airlines.
- In 1926, Eddie Martin was finally able to acquire a hangar for his airport, a portable wooden building which sold for $350.
- John Wayne Airport (SNA) has 2 runways.
- The closest airport to John Wayne Airport (SNA) is MCAS El Toro (NZJ), which is located only 8 miles (13 kilometers) E of SNA.
- The furthest airport from John Wayne Airport (SNA) is Pierrefonds Airport (ZSE), which is located 11,490 miles (18,491 kilometers) away in Saint-Pierre, Réunion.
- Terminal C opened in November 2011 and added seven new gates, a dedicated commuter gate area and new eateries and retail.
- Because of John Wayne Airport's relatively low elevation of 56 feet, planes can take off or land at John Wayne 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):
- 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 closed in 1959 and reopened six years later as Bi-State Parks Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
- Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
- 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.
- 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.