Nonstop flight route between Arapahoe County, Colorado, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(39°34'12"N by 104°50'57"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from APA to CPS:
790.31 miles (1,271.88 km)
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Jump to:
- About this route
- APA Airport Information
- CPS Airport Information
- Facts about APA
- Facts about CPS
- Map of Nearest Airports to APA
- List of Nearest Airports to APA
- Map of Furthest Airports from APA
- List of Furthest Airports from APA
- 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 Centennial Airport (APA), Arapahoe County, Colorado, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 790 miles (or 1,272 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 Centennial 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: | APA / KAPA |
| Airport Name: | Centennial Airport |
| Location: | Arapahoe County, Colorado, United States |
| GPS Coordinates: | 39°34'12"N by 104°50'57"W |
| Area Served: | Denver, Colorado |
| Operator/Owner: | Arapahoe County Public Airport Authority |
| Airport Type: | Public |
| Elevation: | 5885 feet (1,794 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from APA |
| More Information: | APA 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 Centennial Airport (APA):
- Because of Centennial Airport's high elevation of 5,885 feet, planes must typically fly at a faster airspeed in order to takeoff or land at APA. Combined with a high temperature, this could make APA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Centennial Airport covers 1,400 acres at an elevation of 5,885 feet.
- The closest airport to Centennial Airport (APA) is Denver International Airport (DEN), which is located 22 miles (36 kilometers) NNE of APA.
- Centennial Airport (APA) has 3 runways.
- The furthest airport from Centennial Airport (APA) is Sir Gaëtan Duval Airport (RRG), which is located 10,899 miles (17,540 kilometers) away in Rodrigues Island, Mauritius.
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.
- 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.
- 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.
- Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
- St. Louis Downtown Airport (CPS) has 3 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 22.23 miles (35.77 km) NNE | Denver International Airport (DEN) | Denver, Colorado, United States |     |
| 2 | 27.40 miles (44.09 km) NNW | Rocky Mountain Metropolitan Airport (BJC) | Denver, Colorado, United States | |
| 3 | 38.09 miles (61.31 km) NNW | Boulder Municipal Airport (WBU) | Boulder, Colorado, United States | |
| 4 | 40.06 miles (64.47 km) S | United States Air Force Academy (AFF) | Colorado Springs, Colorado, United States | |
| 5 | 53.40 miles (85.93 km) S | City of Colorado Springs Municipal Airport (COS) | Colorado Springs, Colorado, United States | |
| 6 | 61.02 miles (98.21 km) N | Greeley-Weld County Airport (GXY) | Greeley, Colorado, United States | |
| 7 | 61.54 miles (99.03 km) N | Fort Collins-Loveland Municipal Airport (FNL) | Fort Collins/Loveland, Colorado, United States | |
| 8 | 81.98 miles (131.94 km) WSW | Lake County Airport (LXV) | Leadville, Colorado, United States | |
| 9 | 90.51 miles (145.66 km) SSE | Pueblo Memorial Airport (PUB) | Pueblo, Colorado, United States | |
| 10 | 95.91 miles (154.35 km) ENE | Colorado Plains Regional Airport (AKO) | Akron, Colorado, United States | |
| 11 | 96.02 miles (154.53 km) SW | Harriet Alexander Field (SLT) | Salida, Colorado, United States | |
| 12 | 108.00 miles (173.81 km) N | Francis E. Warren Air Force Base (FEW) | Cheyenne, Wyoming, United States | |
| 13 | 109.57 miles (176.34 km) N | Cheyenne Regional Airport (CYS) | Cheyenne, Wyoming, United States | |
| 14 | 110.21 miles (177.37 km) W | Eagle County Regional Airport (EGE) | Eagle, Colorado (near Vail), United States | |
| 15 | 110.46 miles (177.76 km) WSW | Aspen–Pitkin County Airport (ASE) | Aspen, Colorado, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,899.07 miles (17,540.31 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,757.90 miles (17,313.12 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,721.36 miles (17,254.31 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,701.44 miles (17,222.25 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,520.75 miles (16,931.47 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,410.99 miles (16,754.82 km) ESE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 7 | 10,396.62 miles (16,731.70 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 8 | 10,364.97 miles (16,680.77 km) ESE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,300.32 miles (16,576.72 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,264.43 miles (16,518.95 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 11 | 10,251.95 miles (16,498.87 km) ESE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 12 | 10,231.40 miles (16,465.80 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,212.09 miles (16,434.73 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 14 | 10,209.72 miles (16,430.91 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 15 | 10,201.21 miles (16,417.21 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 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 | |