Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Bulgan, Mongolia:
Departure Airport:
(38°34'14"N by 90°9'21"W)
Arrival Airport:
(48°51'15"N by 103°29'3"E)
Distance from CPS to UGA:
6,338.83 miles (10,201.34 km)
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Jump to:
- About this route
- CPS Airport Information
- UGA Airport Information
- Facts about CPS
- Facts about UGA
- Map of Nearest Airports to CPS
- List of Nearest Airports to CPS
- Map of Furthest Airports from CPS
- List of Furthest Airports from CPS
- Map of Nearest Airports to UGA
- List of Nearest Airports to UGA
- Map of Furthest Airports from UGA
- List of Furthest Airports from UGA
About this route:
A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Bulgan Airport (UGA), Bulgan, Mongolia would travel a Great Circle distance of 6,339 miles (or 10,201 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 St. Louis Downtown Airport and Bulgan 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 St. Louis Downtown Airport and Bulgan Airport. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
| IATA / ICAO Codes: | CPS / KCPS |
| Airport Name: | St. Louis Downtown Airport |
| Location: | Cahokia, Illinois (near St. Louis), United States |
| GPS Coordinates: | 38°34'14"N by 90°9'21"W |
| Area Served: | Greater St. Louis |
| Operator/Owner: | Bi-State Development Agency |
| Airport Type: | Public |
| Elevation: | 413 feet (126 meters) |
| # of Runways: | 3 |
| View all routes: | Routes from CPS |
| More Information: | CPS Maps & Info |
Arrival Airport Information:
| IATA / ICAO Codes: | UGA / ZMBN |
| Airport Name: | Bulgan Airport |
| Location: | Bulgan, Mongolia |
| GPS Coordinates: | 48°51'15"N by 103°29'3"E |
| Operator/Owner: | Civil Aviation Authority of Mongolia |
| Airport Type: | Military/Public |
| Elevation: | 4236 feet (1,291 meters) |
| # of Runways: | 1 |
| View all routes: | Routes from UGA |
| More Information: | UGA Maps & Info |
Facts about St. Louis Downtown Airport (CPS):
- Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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 Downtown Airport (CPS) has 3 runways.
- The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
- The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
Facts about Bulgan Airport (UGA):
- The closest airport to Bulgan Airport (UGA) is Kharkhorin Airport (KHR), which is located 115 miles (185 kilometers) SSW of UGA.
- Because of Bulgan Airport's high elevation of 4,236 feet, planes must typically fly at a faster airspeed in order to takeoff or land at UGA. Combined with a high temperature, this could make UGA a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- Bulgan Airport (UGA) currently has only 1 runway.
- The furthest airport from Bulgan Airport (UGA) is Cochrane Airfield (LGR), which is nearly antipodal to Bulgan Airport (meaning Bulgan Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,224 miles (19,673 kilometers) away in Cochrane, Chile.
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 16.47 miles (26.50 km) NW | Lambert–St. Louis International Airport (STL) | St. Louis, Missouri, United States |     |
| 2 | 17.42 miles (28.04 km) E | MidAmerica St. Louis Airport (BLV) | Belleville, Illinois, United States | |
| 3 | 22.85 miles (36.78 km) NNE | St. Louis Regional Airport (ALN) | Alton, Illinois, United States | |
| 4 | 27.50 miles (44.26 km) WNW | Spirit of St. Louis Airport (SUS) | Chesterfield, Missouri, United States | |
| 5 | 45.73 miles (73.59 km) ENE | Greenville Airport (GRE) | Greenville, Illinois, United States | |
| 6 | 64.55 miles (103.88 km) E | Salem–Leckrone Airport (SLO) | Salem, Illinois, United States | |
| 7 | 72.26 miles (116.30 km) ESE | Mt. Vernon Airport (MVN) | Mount Vernon, Illinois, United States | |
| 8 | 73.57 miles (118.39 km) SE | Southern Illinois Airport (MDH) | Carbondale/Murphysboro, Illinois, United States | |
| 9 | 83.94 miles (135.09 km) SE | Williamson County Regional Airport (MWA) | Marion, Illinois, United States | |
| 10 | 91.63 miles (147.46 km) NNE | Abraham Lincoln Capital Airport (SPI) | Springfield, Illinois, United States | |
| 11 | 92.63 miles (149.07 km) WSW | Rolla National Airport (VIH) | Rolla, Missouri, United States | |
| 12 | 98.29 miles (158.19 km) SSE | Cape Girardeau Regional Airport (CGI) | Cape Girardeau, Missouri, United States | |
| 13 | 108.03 miles (173.86 km) W | Jefferson City Memorial Airport (JEF) | Jefferson City, Missouri, United States | |
| 14 | 109.88 miles (176.83 km) NNW | Quincy Regional Airport (UIN) | Quincy, Illinois, United States | |
| 15 | 111.34 miles (179.18 km) NE | Decatur Airport (DEC) | Decatur, Illinois, United States | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 10,998.38 miles (17,700.14 km) W | Margaret River Airport (MGV) | Margaret River, Western Australia, Australia | |
| 2 | 10,976.37 miles (17,664.71 km) W | Busselton Regional Airport (BQB) | Busselton, Western Australia, Australia | |
| 3 | 10,953.82 miles (17,628.43 km) W | Bunbury Airport (BUY) | Bunbury, Western Australia, Australia | |
| 4 | 10,950.15 miles (17,622.51 km) W | Manjimup Airport (MJP) | Manjimup, Western Australia, Australia | |
| 5 | 10,924.13 miles (17,580.63 km) W | Rottnest Airport (RTS) | Rottnest Island, Western Australia, Australia | |
| 6 | 10,908.52 miles (17,555.52 km) W | Jandakot Airport (JAD) | Jandakot, Western Australia, Australia | |
| 7 | 10,899.45 miles (17,540.92 km) W | Perth Airport (PER) | Perth, Western Australia, Australia | |
| 8 | 10,897.05 miles (17,537.06 km) WSW | Jurien Bay Airport (JUR) | Jurien Bay, Western Australia, Australia | |
| 9 | 10,874.80 miles (17,501.25 km) W | Albany Airport (ALH) | Albany, Western Australia, Australia | |
| 10 | 10,862.63 miles (17,481.67 km) WSW | Geraldton Airport (GET) | Geraldton, Western Australia, Australia | |
| 11 | 10,855.26 miles (17,469.80 km) W | Katanning Airport (KNI) | Katanning, Western Australia, Australia | |
| 12 | 10,843.70 miles (17,451.20 km) WSW | Kalbarri Airport (KAX) | Kalbarri, Western Australia, Australia | |
| 13 | 10,809.16 miles (17,395.61 km) WSW | Mullewa Airport (MXU) | Mullewa, Western Australia, Australia | |
| 14 | 10,809.10 miles (17,395.51 km) WSW | Morawa Airport (MWB) | Morawa, Western Australia, Australia | |
| 15 | 10,804.00 miles (17,387.31 km) WSW | Shark Bay Airport (MJK) | Monkey Mia, Western Australia, Australia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 115.15 miles (185.32 km) SSW | Kharkhorin Airport (KHR) | Kharkhorin, Mongolia | |
| 2 | 139.05 miles (223.78 km) SSW | Khujirt Airport (HJT) | Khujirt, Övörkhangai, Mongolia | |
| 3 | 162.53 miles (261.57 km) WNW | Mörön Airport (MXV) | Mörön, Khövsgöl Province, Mongolia | |
| 4 | 166.10 miles (267.31 km) ESE | Chinggis Khaan International Airport (ULN) | Ulan Bator, Mongolia | |
| 5 | 182.57 miles (293.82 km) S | Arvaykheer Airport (AVK) | Arvaikheer, Mongolia | |
| 6 | 226.38 miles (364.32 km) SW | Bayankhongor Airport (BYN) | Bayankhongor, Mongolia | |
| 7 | 239.19 miles (384.94 km) N | International Airport Irkutsk (IKT) | Irkutsk, Russia | |
| 8 | 250.37 miles (402.92 km) SSE | Mandalgovi Airport (MXW) | Mandalgovi, Dundgovi, Mongolia | |
| 9 | 268.33 miles (431.83 km) NE | Baikal International Airport (UUD) | Ulan-Ude, Republic of Buryatia, Russia | |
| 10 | 379.02 miles (609.97 km) WSW | Altai Airport (LTI) | Altai, Govi-Altai, Mongolia | |
| 11 | 445.46 miles (716.90 km) WNW | Kyzyl Airport (KYZ) | Kyzyl, Tuva, Russia | |
| 12 | 484.02 miles (778.96 km) ENE | Chita Kadala (HTA) | Chita, Russia | |
| 13 | 487.53 miles (784.60 km) SSW | Ejin Banner Taolai Airport (EJN) | Ejin Banner, Inner Mongolia, China | |
| 14 | 513.01 miles (825.61 km) E | Choibalsan Airport (COQ) | Choibalsan, Mongolia | |
| 15 | 517.92 miles (833.51 km) WNW | Ulaangom Airport (ULO) | Ulaangom, Uvs Province, Mongolia | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 12,224.00 miles (19,672.57 km) WSW | Cochrane Airfield (LGR) | Cochrane, Chile | |
| 2 | 12,222.15 miles (19,669.59 km) WSW | Lago Argentino Airport (ING) | El Calafate, Santa Cruz, Argentina | |
| 3 | 12,213.92 miles (19,656.34 km) WSW | Comandante Armando Tola International Airport (FTE) | El Calafate, Santa Cruz Province, Argentina | |
| 4 | 12,174.41 miles (19,592.76 km) SW | Teniente Julio Gallardo Airfield (PNT) | Puerto Natales, Chile | |
| 5 | 12,162.98 miles (19,574.37 km) WSW | Chile Chico Airfield (CCH) | Chile Chico, Aisén Region, Chile | |
| 6 | 12,147.19 miles (19,548.97 km) W | Gobernador Gregores Airport (GGS) | Gobernador Gregores, Santa Cruz, Argentina | |
| 7 | 12,133.74 miles (19,527.31 km) WSW | Perito Moreno Airport (PMQ) | Perito Moreno, Santa Cruz, Argentina | |
| 8 | 12,133.29 miles (19,526.58 km) SW | Balmaceda Airport (BBA) | Balmaceda, Chile | |
| 9 | 12,131.08 miles (19,523.03 km) SW | Teniente Vidal Airfield (GXQ) | Coyhaique, Chile | |
| 10 | 12,066.13 miles (19,418.50 km) WSW | Piloto Civil Norberto Fernández International Airport (RGL) | Río Gallegos, Santa Cruz, Argentina | |
| 11 | 12,059.09 miles (19,407.17 km) SW | Alto Río Senguer Airport (ARR) | Alto Río Senguer, Chubut, Argentina | |
| 12 | 12,058.96 miles (19,406.97 km) SW | Presidente Carlos Ibáñez International Airport (PUQ) | Punta Arenas, Chile | |
| 13 | 11,988.54 miles (19,293.64 km) SSW | Chaitén Airfield (WCH) | Chaitén, Los Lagos, Chile | |
| 14 | 11,977.57 miles (19,275.98 km) SSW | Gamboa Airport (WCA) | Castro, Chile | |
| 15 | 11,966.91 miles (19,258.83 km) SSW | Mocopulli Airport (MHC) | Castro, Los Lagos, Chile | |