Nonstop flight route between Alton, Illinois, United States and Greenville, Liberia:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(5°2'3"N by 9°4'0"W)
Distance from ALN to SNI:
5,515.35 miles (8,876.08 km)
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Jump to:
- About this route
- ALN Airport Information
- SNI Airport Information
- Facts about ALN
- Facts about SNI
- 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 SNI
- List of Nearest Airports to SNI
- Map of Furthest Airports from SNI
- List of Furthest Airports from SNI
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Greenville/Sinoe Airport (SNI), Greenville, Liberia would travel a Great Circle distance of 5,515 miles (or 8,876 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 Greenville/Sinoe 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 Greenville/Sinoe 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: | SNI / GLGE |
| Airport Names: |
|
| Location: | Greenville, Liberia |
| GPS Coordinates: | 5°2'3"N by 9°4'0"W |
| Area Served: | Greenville, Liberia |
| Airport Type: | Public |
| Elevation: | 10 feet (3 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from SNI |
| More Information: | SNI Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
- 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.
- 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.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
Facts about Greenville/Sinoe Airport (SNI):
- The closest airport to Greenville/Sinoe Airport (SNI) is Sasstown Airport (SAZ), which is located 50 miles (81 kilometers) ESE of SNI.
- Because of Greenville/Sinoe Airport's relatively low elevation of 10 feet, planes can take off or land at Greenville/Sinoe 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.
- In addition to being known as "Greenville/Sinoe Airport", other names for SNI include "R.E. Murray Airport" and "Greenville/Sinoe Airport".
- The furthest airport from Greenville/Sinoe Airport (SNI) is Aranuka Airport (AAK), which is nearly antipodal to Greenville/Sinoe Airport (meaning Greenville/Sinoe Airport is almost on the exact opposite side of the Earth from Aranuka Airport), and is located 12,031 miles (19,362 kilometers) away in Aranuka, Kiribati.
- Greenville/Sinoe Airport (SNI) currently has only 1 runway.
| 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 | 50.47 miles (81.22 km) ESE | Sasstown Airport (SAZ) | Sasstown, Liberia | |
| 2 | 90.90 miles (146.29 km) NW | Buchanan Airport (UCN) | Buchanan, Liberia | |
| 3 | 94.84 miles (152.63 km) NE | Tchien Airport (THC) | Tchien, Liberia | |
| 4 | 104.64 miles (168.40 km) ESE | Cape Palmas Airport (CPA) | Cape Palmas, Liberia | |
| 5 | 121.67 miles (195.81 km) NW | Roberts International Airport Roberts Field (ROB) | Monrovia, Liberia | |
| 6 | 145.08 miles (233.48 km) NW | Spriggs Payne Airport (MLW) | Monrovia, Liberia | |
| 7 | 148.17 miles (238.46 km) NE | Guiglo Airport (GGO) | Guiglo, Côte d'Ivoire | |
| 8 | 172.99 miles (278.40 km) N | Nimba Airport (NIA) | Nimba, Liberia | |
| 9 | 185.01 miles (297.75 km) NNE | Man Airport (MJC) | Man, Côte d'Ivoire | |
| 10 | 193.61 miles (311.59 km) N | Nzérékoré Airport (NZE) | N'zerekore, Guinea | |
| 11 | 202.08 miles (325.22 km) E | Sassandra Airport (ZSS) | Sassandra, Côte d'Ivoire | |
| 12 | 215.69 miles (347.12 km) NE | Daloa Airport (DJO) | Daloa, Côte d'Ivoire (Ivory Coast) | |
| 13 | 224.29 miles (360.96 km) ENE | Gagnoa Airport (GGN) | Gagnoa, Côte d'Ivoire | |
| 14 | 232.58 miles (374.30 km) NNW | Voinjama Airport (VOI) | Voinjama, Liberia | |
| 15 | 242.65 miles (390.51 km) NNW | Foya Airport (FOY) | Foya, Liberia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,030.77 miles (19,361.60 km) SSW | Aranuka Airport (AAK) | Aranuka, Kiribati | |
| 2 | 12,021.09 miles (19,346.01 km) SE | Nauru International Airport (INU) | Yaren, Nauru | |
| 3 | 12,005.91 miles (19,321.59 km) SSW | Abemama Atoll Airport (AEA) | Abemama Atoll, Kiribati | |
| 4 | 12,004.23 miles (19,318.89 km) SW | Beru Island Airport (BEZ) | Beru, Kiribati | |
| 5 | 11,999.10 miles (19,310.63 km) WSW | Arorae Island Airport (AIS) | Arorae Island, Kiribati | |
| 6 | 11,967.90 miles (19,260.42 km) SSW | Bonriki International Airport (TRW) | Tarawa, Kiribati | |
| 7 | 11,942.93 miles (19,220.24 km) SSW | Abaiang Atoll Airport (ABF) | Abaiang, Kiribati | |
| 8 | 11,921.48 miles (19,185.71 km) SSW | Marakei Airport (MZK) | Marakei, Kiribati | |
| 9 | 11,860.91 miles (19,088.24 km) SSW | Butaritari Atoll Airport (BBG) | Butaritari Atoll, Kiribati | |
| 10 | 11,820.79 miles (19,023.67 km) WSW | Funafuti International Airport (FUN) | Funafuti, Tuvalu | |
| 11 | 11,801.33 miles (18,992.36 km) SSE | Mota Lava Airport (MTV) | Mota Lava, Vanuatu | |
| 12 | 11,785.18 miles (18,966.36 km) SSE | Vanua Lava Airport (SLH) | Sola, Vanua Lava, Torba Province, Vanuatu | |
| 13 | 11,762.66 miles (18,930.12 km) SSE | Gaua Airport (ZGU) | Gaua, Torba, Vanuatu | |
| 14 | 11,754.40 miles (18,916.83 km) SSE | Ebon Airport (EBO) | Ebon Atoll, Marshall Islands | |
| 15 | 11,738.94 miles (18,891.95 km) ESE | Ulawa Airport (RNA) | Arona, Ulawa Island, Solomon Islands | |