Nonstop flight route between Rock Springs, Wyoming, United States and Alton, Illinois, United States:
Departure Airport:
(41°35'39"N by 109°3'55"W)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from RKS to ALN:
1,018.14 miles (1,638.53 km)
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- About this route
- RKS Airport Information
- ALN Airport Information
- Facts about RKS
- Facts about ALN
- Map of Nearest Airports to RKS
- List of Nearest Airports to RKS
- Map of Furthest Airports from RKS
- List of Furthest Airports from RKS
- 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 Rock Springs–Sweetwater County Airport (RKS), Rock Springs, Wyoming, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 1,018 miles (or 1,639 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 Rock Springs–Sweetwater County 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: | RKS / KRKS |
| Airport Name: | Rock Springs–Sweetwater County Airport |
| Location: | Rock Springs, Wyoming, United States |
| GPS Coordinates: | 41°35'39"N by 109°3'55"W |
| Area Served: | Rock Springs, Wyoming |
| Operator/Owner: | Rock Springs & Sweetwater County |
| Airport Type: | Public |
| Elevation: | 6765 feet (2,062 meters) |
| # of Runways: | 2 |
| View all routes: | Routes from RKS |
| More Information: | RKS 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 Rock Springs–Sweetwater County Airport (RKS):
- Rock Springs–Sweetwater County Airport (RKS) has 2 runways.
- The airport covers 1,242 acres at an elevation of 6,765 feet.
- Because of Rock Springs–Sweetwater County Airport's high elevation of 6,765 feet, planes must typically fly at a faster airspeed in order to takeoff or land at RKS. Combined with a high temperature, this could make RKS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The furthest airport from Rock Springs–Sweetwater County Airport (RKS) is Sir Gaëtan Duval Airport (RRG), which is located 10,864 miles (17,484 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Rock Springs–Sweetwater County Airport (RKS) is Kemmerer Municipal Airport (EMM), which is located 79 miles (126 kilometers) WNW of RKS.
- United Airlines DC-3s landed at Rock Springs until 1952.
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.
- 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.
- 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.
- 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.
- In the spring of 2004 the airport was at the center of a scandal.
- Civic Memorial Airport opened in 1946 and received its current name in 1984.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 78.56 miles (126.43 km) WNW | Kemmerer Municipal Airport (EMM) | Kemmerer, Wyoming, United States |     |
| 2 | 82.99 miles (133.56 km) SSW | Vernal Regional Airport (VEL) | Vernal, Utah, United States | |
| 3 | 86.13 miles (138.62 km) NNE | Hunt Field (LND) | Lander, Wyoming, United States | |
| 4 | 86.96 miles (139.95 km) NW | Miley Memorial Field (BPI) | Big Piney, Wyoming, United States | |
| 5 | 91.28 miles (146.91 km) NNW | Ralph Wenz Field (PWY) | Pinedale, Wyoming, United States | |
| 6 | 97.33 miles (156.63 km) E | Rawlins Municipal Airport (RWL) | Rawlins, Wyoming, United States | |
| 7 | 106.17 miles (170.87 km) NNE | Riverton Regional Airport (RIW) | Riverton, Wyoming, United States | |
| 8 | 110.61 miles (178.01 km) SE | Craig–Moffat Airport (CIG) | Craig, Colorado, United States | |
| 9 | 116.42 miles (187.36 km) E | Shively Field (SAA) | Saratoga, Wyoming, United States | |
| 10 | 123.18 miles (198.25 km) NW | Afton Municipal Airport (AFO) | Afton, Wyoming, United States | |
| 11 | 123.22 miles (198.31 km) SE | Yampa Valley Airport (HDN) | Hayden, Colorado, United States | |
| 12 | 136.64 miles (219.91 km) ESE | Steamboat Springs Airport (SBS) | Steamboat Springs, Colorado, United States | |
| 13 | 144.39 miles (232.38 km) W | Logan-Cache Airport (LGU) | Logan, Utah, United States | |
| 14 | 154.24 miles (248.22 km) W | Hill Air Force Base (HIF) | Ogden, Utah, United States | |
| 15 | 154.93 miles (249.33 km) W | Brigham City Airport (BMC) | Brigham City, Utah, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,863.97 miles (17,483.82 km) SSE | Sir Gaëtan Duval Airport (RRG) | Rodrigues Island, Mauritius | |
| 2 | 10,781.90 miles (17,351.75 km) SSE | Sir Seewoosagur Ramgoolam International Airport (MRU) | Plaisance, Mauritius | |
| 3 | 10,770.23 miles (17,332.96 km) SE | Pierrefonds Airport (ZSE) | Saint-Pierre, Réunion | |
| 4 | 10,746.98 miles (17,295.55 km) SE | Roland Garros Airport (RUN) | St Denis, Réunion, France | |
| 5 | 10,651.86 miles (17,142.46 km) ESE | Tôlanaro Airport (FTU) | Tôlanaro, Madagascar | |
| 6 | 10,536.86 miles (16,957.39 km) ESE | Ampanihy Airport (AMP) | Ampanihy, Madagascar | |
| 7 | 10,510.21 miles (16,914.50 km) SE | Mananjary Airport (MNJ) | Mananjary, Madagascar | |
| 8 | 10,473.05 miles (16,854.70 km) SE | Fianarantsoa Airport (WFI) | Fianarantsoa, Madagascar | |
| 9 | 10,375.82 miles (16,698.22 km) SE | Toamasino Airport (TMM) | Toamasina, Madagascar | |
| 10 | 10,354.62 miles (16,664.10 km) SE | Manja Airport (MJA) | Manja, Menabe, Madagascar | |
| 11 | 10,344.36 miles (16,647.60 km) ESE | Andavadoaka Airport (DVD) | Andavadoaka, Toliara province, Atsimo-Andrefana region, Madagascar | |
| 12 | 10,343.15 miles (16,645.64 km) SE | Ivato International Airport (TNR) | Antananarivo, Madagascar | |
| 13 | 10,331.94 miles (16,627.60 km) SE | Sainte Marie Airport (SMS) | Île Sainte-Marie, Madagascar | |
| 14 | 10,331.00 miles (16,626.09 km) ESE | Morombe Airport (MXM) | Morombe, Madagascar | |
| 15 | 10,304.52 miles (16,583.48 km) SE | Miandrivazo Airport (ZVA) | Miandrivazo, Madagascar | |
| 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 | |