Nonstop flight route between Alton, Illinois, United States and Key Largo, Florida, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(25°19'13"N by 80°16'41"W)
Distance from ALN to OCA:
1,096.51 miles (1,764.66 km)
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- About this route
- ALN Airport Information
- OCA Airport Information
- Facts about ALN
- Facts about OCA
- 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 OCA
- List of Nearest Airports to OCA
- Map of Furthest Airports from OCA
- List of Furthest Airports from OCA
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Ocean Reef Club Airport (OCA), Key Largo, Florida, United States would travel a Great Circle distance of 1,097 miles (or 1,765 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 St. Louis Regional Airport and Ocean Reef Club Airport, the route shown on this map most likely still appears to be a straight line.
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: | OCA / |
| Airport Names: |
|
| Location: | Key Largo, Florida, United States |
| GPS Coordinates: | 25°19'13"N by 80°16'41"W |
| Area Served: | Key Largo, Florida |
| Operator/Owner: | Ocean Reef Club |
| Airport Type: | Private use |
| Elevation: | 8 feet (2 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from OCA |
| More Information: | OCA Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- West Star Aviation is the largest fixed base operations company at the airport.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- 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.
- 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.
Facts about Ocean Reef Club Airport (OCA):
- In addition to being known as "Ocean Reef Club Airport", another name for OCA is "07FA".
- The closest airport to Ocean Reef Club Airport (OCA) is Homestead Air Reserve Base (HST), which is located only 13 miles (21 kilometers) NNW of OCA.
- Because of Ocean Reef Club Airport's relatively low elevation of 8 feet, planes can take off or land at Ocean Reef Club 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.
- Ocean Reef Club Airport (OCA) currently has only 1 runway.
- The furthest airport from Ocean Reef Club Airport (OCA) is Shark Bay Airport (MJK), which is located 11,573 miles (18,625 kilometers) away in Monkey Mia, Western Australia, Australia.
| 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 | 13.34 miles (21.47 km) NNW | Homestead Air Reserve Base (HST) | Homestead, Florida, United States | |
| 2 | 24.59 miles (39.58 km) NNW | Kendall-Tamiami Executive Airport (TMB) | Miami, Florida, United States | |
| 3 | 32.36 miles (52.07 km) NNE | Miami Seaplane Base (MPB) | Watson Island, Miami-Dade County, Florida, United States | |
| 4 | 32.69 miles (52.61 km) N | Miami International Airport (MIA) | Miami, Florida, United States | |
| 5 | 40.57 miles (65.30 km) N | Opa-locka Executive Airport (OPF) | Miami, Florida, United States | |
| 6 | 47.10 miles (75.80 km) N | North Perry Airport (HWO) | Hollywood, Florida, United States | |
| 7 | 52.56 miles (84.58 km) N | Fort Lauderdale–Hollywood International Airport (FLL) | Fort Lauderdale / Hollywood, Florida, United States | |
| 8 | 53.71 miles (86.44 km) NW | Dade-Collier Training and Transition Airport (TNT) | Miami, Florida, United States | |
| 9 | 60.96 miles (98.10 km) N | Fort Lauderdale Executive Airport (FXE) | Fort Lauderdale, Florida, United States | |
| 10 | 63.47 miles (102.14 km) SW | Florida Keys Marathon Airport (MTH) | Marathon, Florida, United States | |
| 11 | 64.61 miles (103.98 km) ENE | Cat Cay Airport (CXY) | Cat Cay, Bimini Islands, Bahamas | |
| 12 | 64.88 miles (104.42 km) N | Pompano Beach Airpark (PPM) | Pompano Beach, Florida, United States | |
| 13 | 68.43 miles (110.13 km) ENE | South Bimini Airport (BIM) | Bimini, Bahamas | |
| 14 | 73.89 miles (118.91 km) N | Boca Raton Airport (BCT) | Boca Raton, Florida, United States | |
| 15 | 88.76 miles (142.84 km) N | Palm Beach County Park Airport (LNA) | West Palm Beach, Florida, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,573.03 miles (18,624.94 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 2 | 11,563.80 miles (18,610.08 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 3 | 11,523.66 miles (18,545.48 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 4 | 11,510.10 miles (18,523.66 km) SSE | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 5 | 11,504.29 miles (18,514.31 km) W | RAAF Learmonth (LEA) | Exmouth, Western Australia, Australia | |
| 6 | 11,484.72 miles (18,482.82 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 7 | 11,440.20 miles (18,411.17 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 8 | 11,439.58 miles (18,410.18 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 11,401.38 miles (18,348.70 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 10 | 11,394.43 miles (18,337.51 km) WSW | Barrow Island Airport (BWB) | Barrow Island, Western Australia, Australia | |
| 11 | 11,373.90 miles (18,304.47 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 12 | 11,353.00 miles (18,270.84 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 13 | 11,352.23 miles (18,269.60 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 14 | 11,340.18 miles (18,250.21 km) SW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 15 | 11,337.52 miles (18,245.92 km) SSW | Christmas Island Airport (XCH) | Christmas Island, Australia | |