Nonstop flight route between Atlanta, Georgia, United States and Alton, Illinois, United States:
Departure Airport:
(33°52'32"N by 84°18'6"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from PDK to ALN:
471.11 miles (758.17 km)
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Jump to:
- About this route
- PDK Airport Information
- ALN Airport Information
- Facts about PDK
- Facts about ALN
- Map of Nearest Airports to PDK
- List of Nearest Airports to PDK
- Map of Furthest Airports from PDK
- List of Furthest Airports from PDK
- 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 DeKalb–Peachtree Airport (PDK), Atlanta, Georgia, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 471 miles (or 758 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 DeKalb–Peachtree 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: | PDK / KPDK |
| Airport Name: | DeKalb–Peachtree Airport |
| Location: | Atlanta, Georgia, United States |
| GPS Coordinates: | 33°52'32"N by 84°18'6"W |
| Area Served: | Atlanta, Georgia |
| Operator/Owner: | DeKalb County |
| Airport Type: | Public |
| Elevation: | 1003 feet (306 meters) |
| # of Runways: | 4 |
| View all routes: | Routes from PDK |
| More Information: | PDK 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 DeKalb–Peachtree Airport (PDK):
- DeKalb–Peachtree Airport (PDK) has 4 runways.
- While not primarily driven by the airport, a 30-acre mixed-use project called International Village is under development near the airport with a planned completion date of 2009.
- The closest airport to DeKalb–Peachtree Airport (PDK) is Dobbins Air Reserve Base (MGE), which is located only 13 miles (20 kilometers) WNW of PDK.
- The furthest airport from DeKalb–Peachtree Airport (PDK) is Margaret River Airport (MGV), which is located 11,326 miles (18,227 kilometers) away in Margaret River, Western Australia, Australia.
Facts about St. Louis Regional Airport (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.
- 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.
- 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 | 12.60 miles (20.28 km) WNW | Dobbins Air Reserve Base (MGE) | Marietta, Georgia, United States |     |
| 2 | 14.25 miles (22.93 km) WSW | Fulton County Airport (FTY) | Atlanta, Georgia, United States | |
| 3 | 17.64 miles (28.39 km) S | Morris Army Airfield (Fort Gillem) (FOP) | Fort Gillem, Forest Park, Georgia, USA | |
| 4 | 18.03 miles (29.01 km) SSW | Hartsfield–Jackson Atlanta International Airport (ATL) | Atlanta, Georgia, United States | |
| 5 | 37.12 miles (59.74 km) ENE | Barrow County Airport (WDR) | Winder, Georgia, United States | |
| 6 | 38.48 miles (61.93 km) NE | Lee Gilmer Memorial Airport (GVL) | Gainesville, Georgia, United States | |
| 7 | 56.17 miles (90.39 km) E | Athens Ben Epps Airport (AHN) | Athens, Georgia, United States | |
| 8 | 58.99 miles (94.93 km) NW | Richard B. Russell Airport (RMG) | Rome, Georgia, United States | |
| 9 | 66.94 miles (107.73 km) NNW | Dalton Municipal Airport (DNN) | Dalton, Georgia, United States | |
| 10 | 74.56 miles (119.99 km) SW | LaGrange-Callaway Airport (LGC) | LaGrange, Georgia, United States | |
| 11 | 75.86 miles (122.09 km) NE | Toccoa Airport (TOC) | Toccoa, Georgia, United States | |
| 12 | 78.85 miles (126.89 km) SE | Baldwin County Airport (MLJ) | Milledgeville, Georgia, United States | |
| 13 | 84.38 miles (135.80 km) SSE | Macon Downtown Airport Herbert Smart Downtown Airport (MAC) | Macon, Georgia, United States | |
| 14 | 90.00 miles (144.84 km) SSE | Middle Georgia Regional Airport (MCN) | Macon, Georgia, United States | |
| 15 | 91.60 miles (147.41 km) WSW | Anniston Regional Airport (ANB) | Anniston, Alabama, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,325.83 miles (18,227.11 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 11,307.00 miles (18,196.81 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 11,288.68 miles (18,167.32 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 11,280.87 miles (18,154.76 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 5 | 11,279.02 miles (18,151.77 km) W | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 6 | 11,268.48 miles (18,134.81 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 7 | 11,263.42 miles (18,126.68 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 8 | 11,262.55 miles (18,125.28 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 9 | 11,257.26 miles (18,116.77 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 10 | 11,255.42 miles (18,113.80 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 11 | 11,234.61 miles (18,080.30 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| 12 | 11,209.51 miles (18,039.91 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 13 | 11,199.53 miles (18,023.84 km) W | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 14 | 11,191.67 miles (18,011.20 km) WSW | Carnarvon Airport (CVQ) | Carnarvon, Western Australia, Australia | |
| 15 | 11,178.30 miles (17,989.68 km) W | Katanning Airport (KNI) | Katanning, 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 | |