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

Arrival Airport:

Distance from CPS to IAH:
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- About this route
- CPS Airport Information
- IAH Airport Information
- Facts about CPS
- Facts about IAH
- 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 IAH
- List of Nearest Airports to IAH
- Map of Furthest Airports from IAH
- List of Furthest Airports from IAH
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and George Bush Intercontinental Airport (IAH), Houston, Texas, United States would travel a Great Circle distance of 663 miles (or 1,067 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 George Bush Intercontinental 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: | IAH / KIAH |
Airport Names: |
|
Location: | Houston, Texas, United States |
GPS Coordinates: | 29°59'3"N by 95°20'29"W |
Area Served: | Houston–The Woodlands–Sugar Land |
Operator/Owner: | City of Houston |
Airport Type: | Public |
Elevation: | 97 feet (30 meters) |
# of Runways: | 5 |
View all routes: | Routes from IAH |
More Information: | IAH 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.
- 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- 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 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 George Bush Intercontinental Airport (IAH):
- The closest airport to George Bush Intercontinental Airport (IAH) is David Wayne Hooks Memorial Airport (DWH), which is located only 14 miles (22 kilometers) WNW of IAH.
- An above ground train called TerminaLink connects Terminals A, B, C, D, E and the International Arrivals Building for those with connecting flights in different terminals and provides sterile airside connections.
- George Bush Intercontinental Airport served 40,187,442 passengers in 2011 making the airport the tenth busiest for total passengers in North America.
- As of 2007, Terminals A and B remain from the original design of the airport.
- George Bush Intercontinental Airport (IAH) has 5 runways.
- George Bush Intercontinental Airport handled 40,128,953 passengers last year.
- Terminal A was one of the original two terminals to open in 1969 and was designed by Goleman & Rolfe and George Pierce-Abel B.
- In 2011 Continental Airlines began service to Lagos.
- On April 24, 2014, Spirit Airlines announced new services from Houston, to 6 new domestic destinations, including Atlanta, Fort Lauderdale, Kansas City, New Orleans and San Diego.
- George Bush Intercontinental Airport served 40,187,442 passengers in 2011 making the airport the 10th busiest for total passengers in North America.
- Because of George Bush Intercontinental Airport's relatively low elevation of 97 feet, planes can take off or land at George Bush Intercontinental 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 food court areas are in the center of each concourse, near the departure gates.
- In addition to being known as "George Bush Intercontinental Airport", another name for IAH is "Houston-Intercontinental".
- The furthest airport from George Bush Intercontinental Airport (IAH) is Cocos (Keeling) Island Airport (CCK), which is located 10,981 miles (17,672 kilometers) away in Cocos Islands, Australia.