Nonstop flight route between Alton, Illinois, United States and Bayan-Ölgii Province, Mongolia:
Departure Airport:
(38°53'25"N by 90°2'45"W)
Arrival Airport:
(48°59'30"N by 89°55'10"E)
Distance from ALN to ULG:
6,364.74 miles (10,243.03 km)
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Jump to:
- About this route
- ALN Airport Information
- ULG Airport Information
- Facts about ALN
- Facts about ULG
- 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 ULG
- List of Nearest Airports to ULG
- Map of Furthest Airports from ULG
- List of Furthest Airports from ULG
About this route:
A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and Ölgii Airport (ULG), Bayan-Ölgii Province, Mongolia would travel a Great Circle distance of 6,365 miles (or 10,243 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 Regional Airport and Ölgii 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 Regional Airport and Ölgii Airport. You'll see that it will travel the same route of the red line on this map!
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: | ULG / ZMUL |
| Airport Name: | Ölgii Airport |
| Location: | Bayan-Ölgii Province, Mongolia |
| GPS Coordinates: | 48°59'30"N by 89°55'10"E |
| Operator/Owner: | Civil Aviation Authority of Mongolia |
| Airport Type: | Joint (Civil and Military) |
| # of Runways: | 1 |
| View all routes: | Routes from ULG |
| More Information: | ULG Maps & Info |
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.
- 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 2,250 acres airfield sits at 544 ft MSL.
- 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.
- 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.
Facts about Ölgii Airport (ULG):
- The closest airport to Ölgii Airport (ULG) is Khovd Airport (HVD), which is located 106 miles (170 kilometers) SE of ULG.
- Ölgii Airport handled 13,000 passengers last year.
- Ölgii Airport (ULG) currently has only 1 runway.
- The furthest airport from Ölgii Airport (ULG) is Teniente Julio Gallardo Airfield (PNT), which is located 11,643 miles (18,737 kilometers) away in Puerto Natales, Chile.
| 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 | 105.70 miles (170.11 km) SE | Khovd Airport (HVD) | Khovd, Mongolia | |
| 2 | 118.32 miles (190.42 km) NE | Ulaangom Airport (ULO) | Ulaangom, Uvs Province, Mongolia | |
| 3 | 120.21 miles (193.46 km) SW | Altay Airport (AAT) | Altay, Xinjiang, China | |
| 4 | 143.69 miles (231.25 km) WSW | Kanas Airport (KJI) | Burqin County, Xinjiang, China | |
| 5 | 152.38 miles (245.23 km) S | Fuyun Airport (FYN) | Fuyun, Xinjiang, China | |
| 6 | 271.08 miles (436.26 km) NE | Kyzyl Airport (KYZ) | Kyzyl, Tuva, Russia | |
| 7 | 334.32 miles (538.04 km) N | Abakan International Airport (ABA) | Abakan, Khakassia, Russia | |
| 8 | 336.97 miles (542.30 km) SW | Karamay Airport (KRY) | Karamay, Xinjiang, China | |
| 9 | 340.68 miles (548.27 km) WNW | Oskemen Airport (UKK) | Oskemen (Ust-Kamenogorsk), Kazakhstan | |
| 10 | 344.11 miles (553.79 km) ESE | Altai Airport (LTI) | Altai, Govi-Altai, Mongolia | |
| 11 | 357.71 miles (575.68 km) NNW | Spichenkovo Airport (NOZ) | Prokopyevsk, Kemerovo Oblast, Russia | |
| 12 | 370.04 miles (595.51 km) SSW | Ürümqi Diwopu International Airport (URC) | Ürümqi, Xinjiang, China | |
| 13 | 409.03 miles (658.26 km) NW | Barnaul Airport (BAX) | Barnaul, Altai Krai, Russia | |
| 14 | 413.74 miles (665.84 km) S | Turpan Jiaohe Airport (TLQ) | Turpan, Xinjiang, China | |
| 15 | 442.81 miles (712.63 km) WNW | Semipalatinsk Airport (PLX) | Semey, Kazakhstan | |
| Rank | Distance & Direction | Airport Name & IATA Code | Airport Location | Further Actions |
| 1 | 11,642.96 miles (18,737.48 km) WSW | Teniente Julio Gallardo Airfield (PNT) | Puerto Natales, Chile | |
| 2 | 11,638.16 miles (18,729.76 km) WSW | Lago Argentino Airport (ING) | El Calafate, Santa Cruz, Argentina | |
| 3 | 11,627.24 miles (18,712.19 km) WSW | Comandante Armando Tola International Airport (FTE) | El Calafate, Santa Cruz Province, Argentina | |
| 4 | 11,622.80 miles (18,705.04 km) W | Cochrane Airfield (LGR) | Cochrane, Chile | |
| 5 | 11,569.11 miles (18,618.63 km) W | Chile Chico Airfield (CCH) | Chile Chico, Aisén Region, Chile | |
| 6 | 11,564.76 miles (18,611.62 km) W | Teniente Vidal Airfield (GXQ) | Coyhaique, Chile | |
| 7 | 11,559.20 miles (18,602.68 km) WSW | Presidente Carlos Ibáñez International Airport (PUQ) | Punta Arenas, Chile | |
| 8 | 11,554.10 miles (18,594.48 km) W | Balmaceda Airport (BBA) | Balmaceda, Chile | |
| 9 | 11,536.14 miles (18,565.57 km) W | Perito Moreno Airport (PMQ) | Perito Moreno, Santa Cruz, Argentina | |
| 10 | 11,533.91 miles (18,561.98 km) WSW | Gamboa Airport (WCA) | Castro, Chile | |
| 11 | 11,533.78 miles (18,561.78 km) W | Gobernador Gregores Airport (GGS) | Gobernador Gregores, Santa Cruz, Argentina | |
| 12 | 11,525.49 miles (18,548.44 km) WSW | Mocopulli Airport (MHC) | Castro, Los Lagos, Chile | |
| 13 | 11,510.79 miles (18,524.77 km) WSW | Pupelde Airfield (ZUD) | Ancud, Los Lagos Region, Chile | |
| 14 | 11,505.90 miles (18,516.91 km) WSW | Piloto Civil Norberto Fernández International Airport (RGL) | Río Gallegos, Santa Cruz, Argentina | |
| 15 | 11,505.88 miles (18,516.87 km) WSW | Chaitén Airfield (WCH) | Chaitén, Los Lagos, Chile | |