Nonstop flight route between Alton, Illinois, United States and Cape Palmas, Liberia:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(4°22'45"N by 7°41'48"W)
Distance from ALN to CPA:
5,617.29 miles (9,040.14 km)
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Jump to:
- About this route
- ALN Airport Information
- CPA Airport Information
- Facts about ALN
- Facts about CPA
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
- Map of Nearest Airports to CPA
- List of Nearest Airports to CPA
- Map of Furthest Airports from CPA
- List of Furthest Airports from CPA
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Cape Palmas Airport (CPA), Cape Palmas, Liberia would travel a Great Circle distance of 5,617 miles (or 9,040 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 Regional Airport and Cape Palmas 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 Regional Airport and Cape Palmas Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | ALN / KALN |
| Airport Name: | St. Louis Regional Airport |
| Location: | Alton, Illinois, United States |
| GPS Coordinates: | 38°53'25"N by 90°2'45"W |
| Area Served: | Alton, Illinois |
| Operator/Owner: | St. Louis Regional |
| Airport Type: | Public |
| Elevation: | 544 feet (166 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from ALN |
| More Information: | ALN Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | CPA / GLCP |
| Airport Name: | Cape Palmas Airport |
| Location: | Cape Palmas, Liberia |
| GPS Coordinates: | 4°22'45"N by 7°41'48"W |
| Area Served: | Harper |
| Airport Type: | Public |
| Elevation: | 20 feet (6 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CPA |
| More Information: | CPA Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- The closest airport to St. Louis Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.
- West Star Aviation is the largest fixed base operations company at the airport.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
- The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
- Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
- Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Cape Palmas Airport (CPA):
- Cape Palmas Airport (CPA) currently has only 1 runway.
- The furthest airport from Cape Palmas Airport (CPA) is Aranuka Airport (AAK), which is nearly antipodal to Cape Palmas Airport (meaning Cape Palmas Airport is almost on the exact opposite side of the Earth from Aranuka Airport), and is located 12,108 miles (19,486 kilometers) away in Aranuka, Kiribati.
- The closest airport to Cape Palmas Airport (CPA) is Sasstown Airport (SAZ), which is located 54 miles (88 kilometers) WNW of CPA.
- Because of Cape Palmas Airport's relatively low elevation of 20 feet, planes can take off or land at Cape Palmas 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 | 19.64 miles (31.61 km) WSW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 22.85 miles (36.78 km) SSW | St. Louis Downtown Airport (CPS) | Cahokia, Illinois (near St. Louis), United States | |
| 3 | 26.41 miles (42.50 km) SSE | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 4 | 36.08 miles (58.06 km) E | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 5 | 36.24 miles (58.32 km) WSW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 6 | 60.74 miles (97.76 km) ESE | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 68.78 miles (110.69 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 8 | 75.13 miles (120.92 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 9 | 88.08 miles (141.75 km) SSE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 10 | 90.73 miles (146.02 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| 11 | 95.12 miles (153.07 km) NW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 12 | 96.44 miles (155.20 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 13 | 102.97 miles (165.72 km) ENE | Coles County Memorial Airport (MTO) | Mattoon/Charleston, Illinois, United States | |
| 14 | 107.04 miles (172.27 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 15 | 115.57 miles (186.00 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,002.15 miles (17,706.21 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,979.99 miles (17,670.53 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,957.22 miles (17,633.90 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,954.58 miles (17,629.65 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,926.12 miles (17,583.85 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,910.74 miles (17,559.09 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,901.55 miles (17,544.30 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.24 miles (17,537.37 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,880.36 miles (17,510.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,861.31 miles (17,479.54 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,859.59 miles (17,476.77 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,841.22 miles (17,447.21 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,808.74 miles (17,394.93 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 10,807.95 miles (17,393.67 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,799.72 miles (17,380.43 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 54.49 miles (87.69 km) WNW | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 2 | 104.64 miles (168.40 km) WNW | Greenville/Sinoe Airport (SNI) | Greenville, Liberia | |
| 3 | 114.17 miles (183.74 km) ENE | Sassandra Airport (ZSS) | Sassandra, Côte d'Ivoire | |
| 4 | 119.39 miles (192.13 km) NNW | Tchien Airport (THC) | Tchien, Liberia | |
| 5 | 149.31 miles (240.28 km) N | Guiglo Airport (GGO) | Guiglo, Côte d'Ivoire | |
| 6 | 167.42 miles (269.43 km) NE | Gagnoa Airport (GGN) | Gagnoa, Côte d'Ivoire | |
| 7 | 186.78 miles (300.59 km) NNE | Daloa Airport (DJO) | Daloa, Côte d'Ivoire (Ivory Coast) | |
| 8 | 188.48 miles (303.33 km) ENE | Divo Airport (DIV) | Divo, Côte d'Ivoire (Ivory Coast) | |
| 9 | 193.68 miles (311.70 km) WNW | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 10 | 200.03 miles (321.92 km) N | Man Airport (MJC) | Man, Côte d'Ivoire | |
| 11 | 223.52 miles (359.71 km) NNW | Nimba Airport (NIA) | Nimba, Liberia | |
| 12 | 223.71 miles (360.03 km) NW | Roberts International Airport Roberts Field (ROB) | Monrovia, Liberia | |
| 13 | 236.85 miles (381.17 km) NE | Yamoussoukro Airport (ASK) | Yamoussoukro, Côte d'Ivoire | |
| 14 | 247.13 miles (397.71 km) NNW | Nzérékoré Airport (NZE) | N'zerekore, Guinea | |
| 15 | 248.56 miles (400.02 km) WNW | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,108.27 miles (19,486.33 km) SSW | Aranuka Airport (AAK) | Aranuka, Kiribati | |
| 2 | 12,106.68 miles (19,483.76 km) SW | Beru Island Airport (BEZ) | Beru, Kiribati | |
| 3 | 12,103.50 miles (19,478.65 km) WSW | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 4 | 12,084.22 miles (19,447.63 km) SSW | Abemama Atoll Airport (AEA) | Abemama Atoll, Kiribati | |
| 5 | 12,034.52 miles (19,367.64 km) S | Bonriki International Airport (TRW) | Tarawa, Kiribati | |
| 6 | 12,007.09 miles (19,323.48 km) S | Abaiang Atoll Airport (ABF) | Abaiang, Kiribati | |
| 7 | 11,987.61 miles (19,292.15 km) S | Marakei Airport (MZK) | Marakei, Kiribati | |
| 8 | 11,980.53 miles (19,280.75 km) SE | Nauru International Airport (INU) | Yaren, Nauru | |
| 9 | 11,919.78 miles (19,182.97 km) S | Butaritari Atoll Airport (BBG) | Butaritari Atoll, Kiribati | |
| 10 | 11,883.71 miles (19,124.92 km) WSW | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 11 | 11,769.83 miles (18,941.65 km) NNE | Ebon Airport (EBO) | Ebon Atoll, Marshall Islands | |
| 12 | 11,722.88 miles (18,866.10 km) SSE | Mota Lava Airport (MTV) | Mota Lava, Vanuatu | |
| 13 | 11,716.55 miles (18,855.91 km) N | Enejit Airport (EJT) | Enejit, Marshall Islands | |
| 14 | 11,712.72 miles (18,849.75 km) N | Mili Airport (MIJ) | Mili Atoll, Marshall Islands | |
| 15 | 11,710.30 miles (18,845.85 km) NNE | Kili Airport (KIO) | Kili Island, Marshall Islands | |