Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Buffalo, New York, United States:
Departure Airport:

Arrival Airport:

Distance from CPS to BUF:
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- About this route
- CPS Airport Information
- BUF Airport Information
- Facts about CPS
- Facts about BUF
- 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 BUF
- List of Nearest Airports to BUF
- Map of Furthest Airports from BUF
- List of Furthest Airports from BUF
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Buffalo Niagara International Airport (BUF), Buffalo, New York, United States would travel a Great Circle distance of 669 miles (or 1,077 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 Buffalo Niagara 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: | BUF / KBUF |
Airport Name: | Buffalo Niagara International Airport |
Location: | Buffalo, New York, United States |
GPS Coordinates: | 42°56'26"N by 78°43'55"W |
Area Served: | Erie County |
Airport Type: | Public |
Elevation: | 728 feet (222 meters) |
# of Runways: | 2 |
View all routes: | Routes from BUF |
More Information: | BUF Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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 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 two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
- 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.
Facts about Buffalo Niagara International Airport (BUF):
- Southwest Airlines, which recently merged and absorbed AirTran Airways into its system, remains the busiest airline at Buffalo Niagara International Airport, handling 32 percent of the outbound flights.
- The furthest airport from Buffalo Niagara International Airport (BUF) is Margaret River Airport (MGV), which is located 11,465 miles (18,452 kilometers) away in Margaret River, Western Australia, Australia.
- Buffalo Airport Fire Department is a career fire department for the airport.
- The closest airport to Buffalo Niagara International Airport (BUF) is Niagara Falls International Airport (IAG), which is located only 16 miles (25 kilometers) NW of BUF.
- In 1986–1987, most of the US airline industry consolidated through a series of buyouts and mergers.
- The proximity of Buffalo Niagara International Airport to the 8.4 million residents of Ontario's Golden Horseshoe region makes it a very popular airport for Canadians traveling to U.S.
- Buffalo Niagara International Airport has grown significantly in recent years after the addition of several low cost carriers.
- Buffalo Niagara International Airport (BUF) has 2 runways.
- Buffalo Niagara International Airport handled 5,118,000 passengers last year.
- Because of Buffalo Niagara International Airport's relatively low elevation of 728 feet, planes can take off or land at Buffalo Niagara 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.