Nonstop flight route between Alton, Illinois, United States and Douglas, Wyoming, United States:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(42°47'49"N by 105°23'8"W)
Distance from ALN to DGW:
844.56 miles (1,359.18 km)
Share this route:
Jump to:
- About this route
- ALN Airport Information
- DGW Airport Information
- Facts about ALN
- Facts about DGW
- 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 DGW
- List of Nearest Airports to DGW
- Map of Furthest Airports from DGW
- List of Furthest Airports from DGW
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Converse County Airport (DGW), Douglas, Wyoming, United States would travel a Great Circle distance of 845 miles (or 1,359 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 Converse County 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: | DGW / KDGW |
| Airport Name: | Converse County Airport |
| Location: | Douglas, Wyoming, United States |
| GPS Coordinates: | 42°47'49"N by 105°23'8"W |
| Area Served: | Douglas, Wyoming |
| Operator/Owner: | Converse County |
| Airport Type: | Public |
| Elevation: | 4933 feet (1,504 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from DGW |
| More Information: | DGW Maps & Info |
Facts about St. Louis Regional Airport (ALN):
- St. Louis Regional Airport (ALN) has 2 runways.
- 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.
- 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.
- The 2,250 acres airfield sits at 544 ft MSL.
- 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.
Facts about Converse County Airport (DGW):
- The furthest airport from Converse County Airport (DGW) is Sir Gaëtan Duval Airport (RRG), which is located 10,716 miles (17,245 kilometers) away in Rodrigues Island, Mauritius.
- Because of Converse County Airport's high elevation of 4,933 feet, planes must typically fly at a faster airspeed in order to takeoff or land at DGW. Combined with a high temperature, this could make DGW a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Converse County Airport (DGW) has 2 runways.
- The closest airport to Converse County Airport (DGW) is Casper–Natrona County International AirportCasper Army Airfield (CPR), which is located 55 miles (89 kilometers) W of DGW.
| 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 | 55.17 miles (88.78 km) W | Casper–Natrona County International AirportCasper Army Airfield (CPR) | Casper, Wyoming, United States | |
| 2 | 80.73 miles (129.92 km) SE | Torrington Municipal Airport (TOR) | Torrington, Wyoming, United States | |
| 3 | 103.69 miles (166.87 km) S | Laramie Regional Airport (LAR) | Laramie, Wyoming, United States | |
| 4 | 107.49 miles (172.98 km) N | Gillette–Campbell County Airport (GCC) | Gillette, Wyoming, United States | |
| 5 | 111.49 miles (179.42 km) SE | Western Nebraska Regional Airport (BFF) | Scottsbluff, Nebraska, United States | |
| 6 | 115.28 miles (185.52 km) SW | Rawlins Municipal Airport (RWL) | Rawlins, Wyoming, United States | |
| 7 | 116.12 miles (186.87 km) E | Chadron Municipal Airport (CDR) | Chadron, Nebraska, United States | |
| 8 | 117.21 miles (188.63 km) SSE | Cheyenne Regional Airport (CYS) | Cheyenne, Wyoming, United States | |
| 9 | 118.03 miles (189.95 km) SSE | Francis E. Warren Air Force Base (FEW) | Cheyenne, Wyoming, United States | |
| 10 | 119.00 miles (191.51 km) SW | Shively Field (SAA) | Saratoga, Wyoming, United States | |
| 11 | 141.22 miles (227.28 km) NE | Black Hills Airport (SPF) | Spearfish, South Dakota, United States | |
| 12 | 141.35 miles (227.48 km) ESE | Alliance Municipal Airport (AIA) | Alliance, Nebraska, United States | |
| 13 | 145.22 miles (233.71 km) NE | Rapid City Regional Airport (RAP) | Rapid City, South Dakota, United States | |
| 14 | 146.30 miles (235.45 km) E | Pine Ridge Airport (XPR) | Pine Ridge, South Dakota, United States | |
| 15 | 148.71 miles (239.33 km) NE | Ellsworth Air Force Base (RCA) | Rapid City, South Dakota, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,715.56 miles (17,244.97 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,606.05 miles (17,068.74 km) SE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,585.20 miles (17,035.19 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,563.03 miles (16,999.51 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,447.52 miles (16,813.60 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,331.63 miles (16,627.10 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,310.78 miles (16,593.55 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,271.87 miles (16,530.93 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,183.07 miles (16,388.02 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 10 | 10,181.85 miles (16,386.05 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 11 | 10,159.96 miles (16,350.84 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 12 | 10,150.98 miles (16,336.38 km) ESE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 13 | 10,145.24 miles (16,327.13 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 14 | 10,141.09 miles (16,320.47 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 15 | 10,140.12 miles (16,318.91 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |