Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Niagara Falls, New York, United States:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(43°6'25"N by 78°56'45"W)
Distance from CPS to IAG:
663.74 miles (1,068.19 km)
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Jump to:
- About this route
- CPS Airport Information
- IAG Airport Information
- Facts about CPS
- Facts about IAG
- 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 IAG
- List of Nearest Airports to IAG
- Map of Furthest Airports from IAG
- List of Furthest Airports from IAG
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Niagara Falls International Airport (IAG), Niagara Falls, New York, United States would travel a Great Circle distance of 664 miles (or 1,068 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 Niagara Falls 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: | IAG / KIAG |
| Airport Name: | Niagara Falls International Airport |
| Location: | Niagara Falls, New York, United States |
| GPS Coordinates: | 43°6'25"N by 78°56'45"W |
| Airport Type: | Public / Military |
| Elevation: | 589 feet (180 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from IAG |
| More Information: | IAG 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.
- St. Louis Downtown Airport (CPS) has 3 runways.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- 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.
- 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.
Facts about Niagara Falls International Airport (IAG):
- Niagara Falls International Airport (IAG) has 3 runways.
- The furthest airport from Niagara Falls International Airport (IAG) is Margaret River Airport (MGV), which is located 11,450 miles (18,427 kilometers) away in Margaret River, Western Australia, Australia.
- American Airlines stopped at Niagara Falls until 1956.
- The closest airport to Niagara Falls International Airport (IAG) is St. Catharines/Niagara District Airport (YCM), which is located only 13 miles (21 kilometers) WNW of IAG.
- Niagara Falls International Airport handled 200,000 passengers last year.
- Because of Niagara Falls International Airport's relatively low elevation of 589 feet, planes can take off or land at Niagara Falls 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12.75 miles (20.53 km) WNW | St. Catharines/Niagara District Airport (YCM) | St. Catharines, Ontario, Canada | |
| 2 | 15.79 miles (25.41 km) SE | Buffalo Niagara International Airport (BUF) | Buffalo, New York, United States | |
| 3 | 42.46 miles (68.34 km) NNW | Billy Bishop Toronto City Airport (YTZ) | Toronto, Ontario, Canada | |
| 4 | 45.52 miles (73.25 km) SSW | Chautauqua County/Dunkirk Airport (DKK) | Dunkirk, New York, United States | |
| 5 | 50.07 miles (80.57 km) W | John C. Munro Hamilton International Airport (YHM) | Hamilton, Ontario, Canada | |
| 6 | 52.24 miles (84.07 km) NW | Toronto Pearson International Airport (YYZ) | Mississauga, Ontario, Canada | |
| 7 | 56.21 miles (90.46 km) NNW | Buttonville Airport (YKZ) | Buttonville, Ontario, Canada | |
| 8 | 56.40 miles (90.77 km) N | Oshawa Municipal Airport (YOO) | Oshawa, Ontario, Canada | |
| 9 | 64.24 miles (103.39 km) E | Greater Rochester International Airport (ROC) | Rochester, New York, United States | |
| 10 | 66.58 miles (107.16 km) SSE | Cattaraugus County-Olean Airport (OLE) | Olean, New York, United States | |
| 11 | 67.79 miles (109.09 km) SSW | Chautauqua County/Jamestown Airport (JHW) | Jamestown, New York, United States | |
| 12 | 72.64 miles (116.90 km) ESE | Dansville Municipal Airport (DSV) | Dansville, New York, United States | |
| 13 | 76.08 miles (122.44 km) WNW | Region of Waterloo International Airport (YKF) | Waterloo Regional Municipality, Ontario, Canada | |
| 14 | 82.90 miles (133.41 km) NNE | Peterborough Airport (YPQ) | Peterborough, Ontario, Canada | |
| 15 | 84.36 miles (135.76 km) SE | Wellsville Municipal Airport (ELZ) | Wellsville, New York, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,449.92 miles (18,426.82 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,425.87 miles (18,388.11 km) SW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,421.96 miles (18,381.81 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,399.54 miles (18,345.73 km) SW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,378.20 miles (18,311.39 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,336.31 miles (18,243.98 km) SW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,330.88 miles (18,235.24 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 8 | 11,327.56 miles (18,229.90 km) SW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,316.15 miles (18,211.53 km) SW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 10 | 11,263.61 miles (18,126.98 km) SW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 11,190.96 miles (18,010.05 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 11,167.90 miles (17,972.95 km) SW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 11,144.90 miles (17,935.93 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 11,142.54 miles (17,932.13 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 15 | 11,141.27 miles (17,930.09 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |