Nonstop flight route between Alma, Michigan, United States and Cahokia, Illinois (near St. Louis), United States:
Departure Airport:
(43°19'19"N by 84°41'17"W)
Arrival Airport:
(38°34'14"N by 90°9'21"W)
Distance from AMN to CPS:
434.77 miles (699.70 km)
Share this route:
Jump to:
- About this route
- AMN Airport Information
- CPS Airport Information
- Facts about AMN
- Facts about CPS
- Map of Nearest Airports to AMN
- List of Nearest Airports to AMN
- Map of Furthest Airports from AMN
- List of Furthest Airports from AMN
- 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 Gratiot Community Airport (AMN), Alma, Michigan, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 435 miles (or 700 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 Gratiot Community 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: | AMN / KAMN |
| Airport Name: | Gratiot Community Airport |
| Location: | Alma, Michigan, United States |
| GPS Coordinates: | 43°19'19"N by 84°41'17"W |
| Area Served: | Alma, Michigan |
| Operator/Owner: | City of Alma & County of Gratiot |
| Airport Type: | Public |
| Elevation: | 754 feet (230 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from AMN |
| More Information: | AMN 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 Gratiot Community Airport (AMN):
- Gratiot Community Airport covers an area of 631 acres at an elevation of 754 feet above mean sea level.
- Gratiot Community Airport (AMN) has 2 runways.
- The furthest airport from Gratiot Community Airport (AMN) is Margaret River Airport (MGV), which is located 11,192 miles (18,011 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gratiot Community Airport (AMN) is Mount Pleasant Municipal Airport (MOP), which is located 21 miles (34 kilometers) N of AMN.
- The airport is staffed between 8am and 6pm.
- Because of Gratiot Community Airport's relatively low elevation of 754 feet, planes can take off or land at Gratiot Community 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 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.
- 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.
- The airport opened in 1929 as Curtiss-Steinberg Airport.
- St. Louis Downtown Airport (CPS) has 3 runways.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 20.84 miles (33.54 km) N | Mount Pleasant Municipal Airport (MOP) | Mount Pleasant, Michigan, United States |     |
| 2 | 33.82 miles (54.42 km) ENE | MBS International Airport (MBS) | Midland/Bay City/Saginaw, Michigan, United States | |
| 3 | 37.91 miles (61.01 km) S | Capital Region International Airport (LAN) | Lansing, Michigan, United States | |
| 4 | 46.05 miles (74.10 km) NNE | Gladwin Zettel Memorial Airport (GDW) | Gladwin, Michigan, United States | |
| 5 | 49.36 miles (79.44 km) NW | Roben-Hood Airport (WBR) | Big Rapids, Michigan, United States | |
| 6 | 51.99 miles (83.67 km) SW | Gerald R. Ford International Airport (GRR) | Grand Rapids, Michigan, United States | |
| 7 | 53.61 miles (86.28 km) ESE | Bishop International Airport (FNT) | Flint, Michigan, United States | |
| 8 | 57.55 miles (92.62 km) NW | Nartron Field (RCT) | Reed City, Michigan, United States | |
| 9 | 71.69 miles (115.37 km) N | Roscommon County - Blodgett Memorial Airport (HTL) | Houghton Lake, Michigan, United States | |
| 10 | 74.25 miles (119.50 km) S | Jackson County Airport (JXN) | Jackson, Michigan, United States | |
| 11 | 75.27 miles (121.13 km) NNW | Wexford County Airport (CAD) | Cadillac, Michigan, United States | |
| 12 | 75.75 miles (121.90 km) SSW | W. K. Kellogg Airport (BTL) | Battle Creek, Michigan, United States | |
| 13 | 78.51 miles (126.34 km) SE | Oakland County International Airport (PTK) | Waterford, Michigan, United States | |
| 14 | 78.61 miles (126.51 km) W | Muskegon County Airport (MKG) | Muskegon, Michigan, United States | |
| 15 | 82.82 miles (133.28 km) WSW | Park Township Airport (HLM) | Holland, Michigan, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,191.77 miles (18,011.36 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,167.88 miles (17,972.92 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,157.54 miles (17,956.28 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 4 | 11,142.21 miles (17,931.60 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 5 | 11,105.01 miles (17,871.73 km) WSW | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 6 | 11,087.96 miles (17,844.30 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 7 | 11,076.96 miles (17,826.59 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 8 | 11,066.06 miles (17,809.05 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 9 | 11,064.19 miles (17,806.04 km) WSW | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 10 | 11,028.34 miles (17,748.35 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 11 | 10,966.86 miles (17,649.41 km) SW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 12 | 10,933.36 miles (17,595.50 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 13 | 10,926.60 miles (17,584.61 km) SW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 14 | 10,917.46 miles (17,569.90 km) SW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,865.24 miles (17,485.87 km) WSW | Esperance Airport (EPR) | Esperance, Australia | |
| 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 | |