Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Ailuk, Marshall Islands:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(10°13'0"N by 169°58'59"E)
Distance from CPS to AIM:
6,302.24 miles (10,142.45 km)
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Jump to:
- About this route
- CPS Airport Information
- AIM Airport Information
- Facts about CPS
- Facts about AIM
- 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 AIM
- List of Nearest Airports to AIM
- Map of Furthest Airports from AIM
- List of Furthest Airports from AIM
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Ailuk Airport (AIM), Ailuk, Marshall Islands would travel a Great Circle distance of 6,302 miles (or 10,142 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 large distance between St. Louis Downtown Airport and Ailuk Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between St. Louis Downtown Airport and Ailuk Airport. You'll see that it will travel the same route of the red line on this map!
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: | AIM / |
| Airport Name: | Ailuk Airport |
| Location: | Ailuk, Marshall Islands |
| GPS Coordinates: | 10°13'0"N by 169°58'59"E |
| Area Served: | Ailuk, Ailuk Atoll, Marshall Islands |
| View all routes: | Routes from AIM |
| More Information: | AIM Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- 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 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 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 Ailuk Airport (AIM):
- The furthest airport from Ailuk Airport (AIM) is RAF Ascension (ASI), which is nearly antipodal to Ailuk Airport (meaning Ailuk Airport is almost on the exact opposite side of the Earth from RAF Ascension), and is located 12,100 miles (19,473 kilometers) away in Georgetown, Ascension Island, Saint Helena.
- The closest airport to Ailuk Airport (AIM) is Likiep Airport (LIK), which is located 53 miles (86 kilometers) WSW of AIM.
| 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 | 53.36 miles (85.87 km) WSW | Likiep Airport (LIK) | Likiep Atoll, Marshall Islands | |
| 2 | 55.22 miles (88.87 km) SSE | Wotje Airport (WTE) | Wotje (Wotje Atoll), Marshall Islands | |
| 3 | 60.39 miles (97.19 km) E | Mejit Airport (MJB) | Mejit Island, Marshall Islands | |
| 4 | 70.04 miles (112.72 km) N | Utirik Airport (UTK) | Utirik Island, Marshall Islands | |
| 5 | 108.67 miles (174.89 km) SSE | Kaben Airport (KBT) | Maloelap Atoll, Marshall Islands | |
| 6 | 134.68 miles (216.74 km) SE | Maloelap Airport (MAV) | Taroa Island, Maloelap Atoll, Marshall Islands | |
| 7 | 164.53 miles (264.79 km) SSE | Aur Airport (AUL) | Aur Atoll, Marshall Islands | |
| 8 | 183.74 miles (295.70 km) SSW | Jabot Airport (JAT) | Jabat Island, Marshall Islands | |
| 9 | 185.05 miles (297.81 km) SW | Bucholz Army Airfield (KWA) | Kwajalein, Marshall Islands | |
| 10 | 185.09 miles (297.88 km) SW | Ebadon Airstrip (EBN) | Kwajalein Atoll, Marshall Islands | |
| 11 | 196.05 miles (315.52 km) SSW | Jeh Airport (JEJ) | Ailinglaplap Atoll, Marshall Islands | |
| 12 | 206.21 miles (331.87 km) SW | Majkin Airport (MJE) | Majkin, Marshall Islands | |
| 13 | 212.06 miles (341.28 km) SSW | Ailinglaplap Atoll (AIP) | Ailinglaplap Atoll, Marshall Islands | |
| 14 | 214.71 miles (345.54 km) SSW | Woja Airport (WJA) | Woja, Marshall Islands | |
| 15 | 219.99 miles (354.03 km) WNW | Rongelap Airport (RNP) | Rongelap Atoll, Marshall Islands | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,100.22 miles (19,473.37 km) ESE | RAF Ascension (ASI) | Georgetown, Ascension Island, Saint Helena | |
| 2 | 11,415.75 miles (18,371.82 km) S | Cape Palmas Airport (CPA) | Cape Palmas, Liberia | |
| 3 | 11,402.68 miles (18,350.80 km) S | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 4 | 11,381.00 miles (18,315.90 km) S | Greenville/Sinoe Airport (SNI) | Greenville, Liberia | |
| 5 | 11,356.80 miles (18,276.96 km) SSW | Sassandra Airport (ZSS) | Sassandra, Côte d'Ivoire | |
| 6 | 11,322.93 miles (18,222.45 km) S | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 7 | 11,305.46 miles (18,194.33 km) S | Tchien Airport (THC) | Tchien, Liberia | |
| 8 | 11,299.91 miles (18,185.39 km) S | Roberts International Airport Roberts Field (ROB) | Monrovia, Liberia | |
| 9 | 11,295.19 miles (18,177.81 km) S | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| 10 | 11,288.14 miles (18,166.45 km) SSW | Félix Houphouët-Boigny International Airport (ABJ) | Abidjan, Côte d'Ivoire | |
| 11 | 11,285.03 miles (18,161.45 km) SSW | Divo Airport (DIV) | Divo, Côte d'Ivoire (Ivory Coast) | |
| 12 | 11,275.58 miles (18,146.24 km) SSW | Gagnoa Airport (GGN) | Gagnoa, Côte d'Ivoire | |
| 13 | 11,266.84 miles (18,132.17 km) S | Guiglo Airport (GGO) | Guiglo, Côte d'Ivoire | |
| 14 | 11,259.94 miles (18,121.07 km) SSW | Aboisso Airport (ABO) | Aboisso, Côte d'Ivoire | |
| 15 | 11,248.51 miles (18,102.67 km) SSW | Takoradi Airport (TKD) | Sekondi-Takoradi, Ghana | |