Nonstop flight route between Coolah, New South Wales, Australia and Alton, Illinois, United States:
Departure Airport:
(31°46'23"S by 149°36'36"E)
Arrival Airport:
(38°53'25"N by 90°2'45"W)
Distance from CLH to ALN:
9,097.72 miles (14,641.32 km)
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- About this route
- CLH Airport Information
- ALN Airport Information
- Facts about CLH
- Facts about ALN
- Map of Nearest Airports to CLH
- List of Nearest Airports to CLH
- Map of Furthest Airports from CLH
- List of Furthest Airports from CLH
- 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 Coolah Airport (CLH), Coolah, New South Wales, Australia and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 9,098 miles (or 14,641 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 large distance between Coolah Airport and St. Louis Regional Airport, the route shown on this map most likely appears curved because of this reason.
Try it at home! Get a globe and tightly lay a string between Coolah Airport and St. Louis Regional Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CLH / YCAH |
| Airport Name: | Coolah Airport |
| Location: | Coolah, New South Wales, Australia |
| GPS Coordinates: | 31°46'23"S by 149°36'36"E |
| Operator/Owner: | Warrumbungle Shire Council |
| Airport Type: | Public |
| Elevation: | 1074 feet (327 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from CLH |
| More Information: | CLH 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 Coolah Airport (CLH):
- The furthest airport from Coolah Airport (CLH) is Santa Maria Airport (SMA), which is located 11,970 miles (19,264 kilometers) away in Santa Maria, Portugal.
- Coolah Airport (CLH) currently has only 1 runway.
- The closest airport to Coolah Airport (CLH) is Coonabarabran Airport (COJ), which is located 37 miles (59 kilometers) NNW of CLH.
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.
- Today a fair amount of air traffic and the Direct TV blimp comes for Cardinals playoffs, as Lambert's airport cannot take the blimp.
- In the spring of 2004 the airport was at the center of a scandal.
- 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.
- 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 | 36.52 miles (58.77 km) NNW | Coonabarabran Airport (COJ) | Coonabarabran, New South Wales, Australia |     |
| 2 | 54.53 miles (87.75 km) S | Mudgee Airport (DGE) | Mudgee, New South Wales, Australia | |
| 3 | 67.61 miles (108.80 km) NE | Gunnedah Airport (GUH) | Gunnedah, New South Wales, Australia | |
| 4 | 67.94 miles (109.35 km) WSW | Dubbo City Regional Airport (DBO) | Dubbo, New South Wales, Australia | |
| 5 | 87.23 miles (140.38 km) ENE | Tamworth Airport (TMW) | Tamworth, New South Wales, Australia | |
| 6 | 91.03 miles (146.50 km) NW | Coonamble Airport (CNB) | Coonamble, New South Wales, Australia | |
| 7 | 113.11 miles (182.03 km) S | Bathurst Airport (BHS) | Bathurst, New South Wales, Australia | |
| 8 | 123.08 miles (198.08 km) SE | Cessnock Airport (CES) | Cessnock, New South Wales, Australia | |
| 9 | 127.19 miles (204.70 km) ESE | Maitland Airport (MTL) | Maitland, New South Wales, Australia | |
| 10 | 146.55 miles (235.85 km) NE | Armidale Airport (ARM) | Armidale, New South Wales, Australia | |
| 11 | 146.90 miles (236.41 km) SW | Forbes Airport (FRB) | Forbes, New South Wales, Australia | |
| 12 | 147.87 miles (237.97 km) ESE | Newcastle Airport (NTL) | Newcastle, New South Wales, Australia | |
| 13 | 148.72 miles (239.34 km) SE | Belmont Airport (BEO) | Newcastle, New South Wales, Australia | |
| 14 | 157.77 miles (253.90 km) N | Moree Airport (MRZ) | Moree, New South Wales, Australia | |
| 15 | 158.89 miles (255.71 km) NE | Inverell Airport (IVR) | Inverell, New South Wales, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,970.40 miles (19,264.44 km) NW | Santa Maria Airport (SMA) | Santa Maria, Portugal | |
| 2 | 11,961.18 miles (19,249.61 km) N | Horta International Airport (HOR) | Horta, Azores, Portugal | |
| 3 | 11,955.55 miles (19,240.55 km) NNW | Pico Airport (PIX) | Pico Island, Azores, Portugal | |
| 4 | 11,946.04 miles (19,225.24 km) NNW | João Paulo II Airport (PDL) | Ponta Delgada, Azores, Portugal | |
| 5 | 11,919.41 miles (19,182.39 km) NNW | Lajes Air Base (TER) | Lajes, Azores, Portugal | |
| 6 | 11,913.97 miles (19,173.63 km) NNW | Graciosa Airport (GRW) | Graciosa Island, Azores, Portugal | |
| 7 | 11,904.21 miles (19,157.92 km) N | Flores Airport (FLW) | Flores Island, Azores, Portugal | |
| 8 | 11,889.64 miles (19,134.47 km) N | Corvo Airport (CVU) | Corvo Island, Azores, Portugal | |
| 9 | 11,652.17 miles (18,752.31 km) WNW | La Palma Airport (SPC) | La Palma, Canary Islands, Spain | |
| 10 | 11,639.27 miles (18,731.54 km) W | Madeira Airport (FNC) | Funchal, Madeira, Portugal | |
| 11 | 11,613.66 miles (18,690.33 km) W | Porto Santo Airport (PXO) | Porto Santo, Madeira, Portugal | |
| 12 | 11,607.02 miles (18,679.65 km) WNW | La Gomera Airport (GMZ) | Alajeró / San Sebastián, Canary Islands, Spain | |
| 13 | 11,570.83 miles (18,621.39 km) WNW | Tenerife-South Airport (TFS) | Tenerife, Canary Islands, Spain | |
| 14 | 11,567.78 miles (18,616.49 km) WNW | Tenerife North Airport (TFN) | Tenerife, Canary Islands, Spain | |
| 15 | 11,500.30 miles (18,507.89 km) WNW | Gran Canaria Airport (LPA) | Las Palmas, Canary Islands, Spain | |
| 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 | |