Nonstop flight route between St. Louis, Missouri, United States and Ulan Bator, Mongolia:

About this route:

A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Chinggis Khaan International Airport (ULN), Ulan Bator, Mongolia would travel a Great Circle distance of 6,362 miles (or 10,239 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 Lambert–St. Louis International Airport and Chinggis Khaan International 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 Lambert–St. Louis International Airport and Chinggis Khaan International Airport. You'll see that it will travel the same route of the red line on this map!

Departure Airport Information:

Arrival Airport Information:

Facts about Lambert–St. Louis International Airport (STL):

• After the war, NAS St.
• Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis International 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 April 1957 Official Airline Guide shows TWA with 44 weekday departures.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• Ozark Airlines established its only hub at Lambert in the late 1950s.
• On July 16, 2003, AA announced it was significantly reducing its Lambert hub effective November 1, 2003, cutting it from 417 daily flights to 207, effective November 1, 2003.
• In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
• Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
• The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
• TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
• In September 2009, American Airlines announced that, as a part of the airline's restructuring, it would eliminate its St.
• The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.

Facts about Chinggis Khaan International Airport (ULN):

• Chinggis Khaan International Airport (ULN) has 2 runways.
• The airline Aero Mongolia has its head office on the third floor of the main airport building.
• The furthest airport from Chinggis Khaan International Airport (ULN) is Cochrane Airfield (LGR), which is nearly antipodal to Chinggis Khaan International Airport (meaning Chinggis Khaan International Airport is almost on the exact opposite side of the Earth from Cochrane Airfield), and is located 12,386 miles (19,933 kilometers) away in Cochrane, Chile.
• The closest airport to Chinggis Khaan International Airport (ULN) is Mandalgovi Airport (MXW), which is located 145 miles (234 kilometers) S of ULN.
• In addition to being known as "Chinggis Khaan International Airport", another name for ULN is "Чингис хаан олон улсын нисэх буудалᠴᠢᠩᠭᠢᠰ ᠬᠠᠭᠠᠨ ᠣᠯᠠᠨ ᠤᠯᠤᠰ  ᠦᠨ ᠨᠢᠰᠬᠦ ᠪᠠᠭᠤᠳᠠᠯ".
• The terminal was upgraded to make it suitable for international traffic in 1986.
• Chinggis Khaan International Airport handled 1,098,865 passengers last year.
• The airport was named after Chinggis Khaan to celebrate the 800th anniversary of the establishment of a Mongolian State on 21 December 2005.
• Because of Chinggis Khaan International Airport's high elevation of 4,364 feet, planes must typically fly at a faster airspeed in order to takeoff or land at ULN. Combined with a high temperature, this could make ULN a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.