Nonstop flight route between Raleigh / Durham, North Carolina, United States and Alton, Illinois, United States:
Departure Airport:
(35°52'40"N by 78°47'14"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from RDU to ALN:
651.67 miles (1,048.76 km)
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Jump to:
- About this route
- RDU Airport Information
- ALN Airport Information
- Facts about RDU
- Facts about ALN
- Map of Nearest Airports to RDU
- List of Nearest Airports to RDU
- Map of Furthest Airports from RDU
- List of Furthest Airports from RDU
- 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 Raleigh–Durham International Airport (RDU), Raleigh / Durham, North Carolina, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 652 miles (or 1,049 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 Raleigh–Durham International 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: | RDU / KRDU |
| Airport Name: | Raleigh–Durham International Airport |
| Location: | Raleigh / Durham, North Carolina, United States |
| GPS Coordinates: | 35°52'40"N by 78°47'14"W |
| Area Served: | The Research Triangle Metropolitan Region of North Carolina |
| Airport Type: | Public |
| Elevation: | 435 feet (133 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from RDU |
| More Information: | RDU 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 Raleigh–Durham International Airport (RDU):
- In December 2003, the Airport Authority announced plans to expand and renovate the originally 300,000-square-foot building, transforming it into a new 900,000 ft² facility.
- Raleigh–Durham International Airport (RDU) has 3 runways.
- The hub's traffic peaked in 1991.
- The closest airport to Raleigh–Durham International Airport (RDU) is Triangle North Executive Airport (Franklin County Airport) (LFN), which is located 27 miles (44 kilometers) ENE of RDU.
- Because of Raleigh–Durham International Airport's relatively low elevation of 435 feet, planes can take off or land at Raleigh–Durham International 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 Raleigh–Durham International Airport (RDU) is Margaret River Airport (MGV), which is located 11,639 miles (18,731 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Regional Airport (ALN):
- West Star Aviation is the largest fixed base operations company at the airport.
- 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.
- 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.
- St. Louis Regional Airport (ALN) has 2 runways.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 27.48 miles (44.22 km) ENE | Triangle North Executive Airport (Franklin County Airport) (LFN) | Louisburg, North Carolina, United States |     |
| 2 | 50.17 miles (80.73 km) E | Rocky Mount–Wilson Regional Airport (RWI) | Rocky Mount, North Carolina, United States | |
| 3 | 50.49 miles (81.25 km) SSW | Pope Field (POB) | Fayetteville, North Carolina, United States | |
| 4 | 52.21 miles (84.02 km) S | Simmons Army Airfield (FBG) | Fort Bragg, North Carolina, United States | |
| 5 | 55.77 miles (89.75 km) SW | Moore County Airport (SOP) | Pinehurst / Southern Pines, North Carolina, United States | |
| 6 | 56.93 miles (91.62 km) NNW | Danville Regional Airport (DAN) | Danville, Virginia, United States | |
| 7 | 59.51 miles (95.77 km) SE | Seymour Johnson Air Force Base (GSB) | Goldsboro, North Carolina, United States | |
| 8 | 61.49 miles (98.95 km) S | Fayetteville Regional Airport (FAY) | Fayetteville, North Carolina, United States | |
| 9 | 66.05 miles (106.30 km) WNW | Piedmont Triad International Airport (GSO) | Greensboro, North Carolina, United States | |
| 10 | 66.75 miles (107.42 km) SSE | Clinton-Sampson County Airport (CTZ) | Clinton, North Carolina, United States | |
| 11 | 70.54 miles (113.53 km) SW | Mackall Army Airfield (HFF) | Camp Mackall, North Carolina, United States | |
| 12 | 71.57 miles (115.18 km) ENE | Halifax County Airport (RZZ) | Roanoke Rapids, North Carolina, United States | |
| 13 | 76.22 miles (122.66 km) ESE | Kinston Regional Jetport (ISO) | Kinston, North Carolina, United States | |
| 14 | 80.39 miles (129.37 km) ESE | Pitt–Greenville Airport (PGV) | Greenville, North Carolina, United States | |
| 15 | 81.80 miles (131.64 km) SSW | Laurinburg-Maxton Airport (MXE) | Maxton, North Carolina, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,639.16 miles (18,731.37 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,618.35 miles (18,697.87 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,597.34 miles (18,664.07 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,586.19 miles (18,646.12 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 11,574.09 miles (18,626.65 km) WSW | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 11,557.82 miles (18,600.46 km) WSW | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 11,549.15 miles (18,586.51 km) WSW | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 11,548.91 miles (18,586.13 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 11,510.79 miles (18,524.77 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 10 | 11,501.11 miles (18,509.20 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 11 | 11,492.90 miles (18,495.98 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 11,485.87 miles (18,484.67 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 11,460.17 miles (18,443.31 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,457.81 miles (18,439.51 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 15 | 11,431.80 miles (18,397.65 km) SW | Shark Bay Airport (MJK) | 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 | |