Nonstop flight route between Opelousas, Louisiana, United States and Alton, Illinois, United States:
Departure Airport:
(30°33'29"N by 92°5'57"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from OPL to ALN:
587.32 miles (945.20 km)
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Jump to:
- About this route
- OPL Airport Information
- ALN Airport Information
- Facts about OPL
- Facts about ALN
- Map of Nearest Airports to OPL
- List of Nearest Airports to OPL
- Map of Furthest Airports from OPL
- List of Furthest Airports from OPL
- Map of Nearest Airports to ALN
- List of Nearest Airports to ALN
- Map of Furthest Airports from ALN
- List of Furthest Airports from ALN
About this route:
A direct, nonstop flight between St. Landry Parish Airport (OPL), Opelousas, Louisiana, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 587 miles (or 945 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. Landry Parish Airport and St. Louis Regional Airport, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
| IATA / ICAO Codes: | OPL / KOPL |
| Airport Names: |
|
| Location: | Opelousas, Louisiana, United States |
| GPS Coordinates: | 30°33'29"N by 92°5'57"W |
| Airport Type: | Public |
| Elevation: | 75 feet (23 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from OPL |
| More Information: | OPL Maps & Info |
Arrival 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 |
Facts about St. Landry Parish Airport (OPL):
- The furthest airport from St. Landry Parish Airport (OPL) is Cocos (Keeling) Island Airport (CCK), which is located 11,045 miles (17,775 kilometers) away in Cocos Islands, Australia.
- Because of St. Landry Parish Airport's relatively low elevation of 75 feet, planes can take off or land at St. Landry Parish 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.
- St. Landry Parish Airport (OPL) has 2 runways.
- The closest airport to St. Landry Parish Airport (OPL) is Lafayette Regional Airport (LFT), which is located 25 miles (41 kilometers) SSE of OPL.
- In addition to being known as "St. Landry Parish Airport", another name for OPL is "Ahart Field".
Facts about St. Louis Regional Airport (ALN):
- 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 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.
- West Star Aviation is the largest fixed base operations company at the airport.
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 25.29 miles (40.70 km) SSE | Lafayette Regional Airport (LFT) | Lafayette, Louisiana, United States |     |
| 2 | 38.20 miles (61.47 km) SSE | Acadiana Regional Airport (ARA) | New Iberia, Louisiana, United States | |
| 3 | 38.53 miles (62.00 km) ENE | False River Regional Airport (HZR) | New Roads, Louisiana, United States | |
| 4 | 56.52 miles (90.97 km) E | Baton Rouge Metropolitan Airport (BTR) | Baton Rouge, Louisiana, United States | |
| 5 | 58.97 miles (94.90 km) NNW | Esler Field (ESF) | Alexandria, Louisiana, United States | |
| 6 | 59.44 miles (95.66 km) NNW | Alexandria International Airport (AEX) | Alexandria, Louisiana, United States | |
| 7 | 66.68 miles (107.32 km) WSW | Chennault International Airport (CWF) | Lake Charles, Louisiana, United States | |
| 8 | 73.37 miles (118.08 km) WSW | Lake Charles Regional Airport (LCH) | Lake Charles, Louisiana, United States | |
| 9 | 74.20 miles (119.41 km) SE | Harry P. Williams Memorial Airport (PTN) | Patterson, Louisiana, United States | |
| 10 | 76.09 miles (122.45 km) WNW | Beauregard Regional AirportDeRidder Army Air Base (DRI) | De Ridder, Louisiana, United States | |
| 11 | 87.00 miles (140.02 km) NNE | Natchez–Adams County Airport (HEZ) | Natchez, Mississippi, United States | |
| 12 | 105.60 miles (169.94 km) ENE | McComb-Pike County Airport (MCB) | McComb, Mississippi, United States | |
| 13 | 110.00 miles (177.03 km) SE | Houma–Terrebonne Airport (HUM) | Houma, Louisiana, United States | |
| 14 | 116.60 miles (187.65 km) ESE | Louis Armstrong New Orleans International Airport (MSY) | New Orleans, Louisiana, United States | |
| 15 | 122.10 miles (196.49 km) WSW | Jack Brooks Regional Airport (BPT) | Beaumont/Port Arthur, Texas, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,045.10 miles (17,775.32 km) SSW | Cocos (Keeling) Island Airport (CCK) | Cocos Islands, Australia | |
| 2 | 10,844.52 miles (17,452.52 km) W | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 3 | 10,837.21 miles (17,440.75 km) W | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 4 | 10,835.11 miles (17,437.37 km) WSW | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 5 | 10,826.74 miles (17,423.91 km) W | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 6 | 10,822.92 miles (17,417.76 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 7 | 10,818.00 miles (17,409.85 km) WSW | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 8 | 10,816.41 miles (17,407.27 km) W | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 9 | 10,806.11 miles (17,390.70 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 10 | 10,801.94 miles (17,384.00 km) WSW | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 11 | 10,786.58 miles (17,359.27 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 12 | 10,780.81 miles (17,349.99 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 13 | 10,775.23 miles (17,341.01 km) WSW | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 14 | 10,774.18 miles (17,339.32 km) W | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 10,753.81 miles (17,306.54 km) W | Morawa Airport (MWB) | Morawa, 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 | |