Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Kathmandu, Nepal:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Tribhuvan International Airport (KTM), Kathmandu, Nepal would travel a Great Circle distance of 7,849 miles (or 12,632 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 Tribhuvan 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 St. Louis Downtown Airport and Tribhuvan 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 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.
• 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.
• 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• St. Louis Downtown Airport (CPS) has 3 runways.

Facts about Tribhuvan International Airport (KTM):

• Radisson Hotel Kathmandu operates an executive lounge for first and business class passengers for some airlines and Thai Airways International operates a business lounge for its business-class passengers, as well as Star Alliance Gold card holders.
• The airport is now again connected to Europe with service by Turkish Airlines to Istanbul, after a long gap without service to Europe when Royal Nepal ended their flights to Frankfurt and London in 2001.
• The furthest airport from Tribhuvan International Airport (KTM) is Mataveri International Airport (IPC), which is located 11,530 miles (18,556 kilometers) away in Easter Island, Chile.
• Tribhuvan International Airport handled 3,405,015 passengers last year.
• In addition to being known as "Tribhuvan International Airport", another name for KTM is "त्रिभुवन अन्तर्राष्ट्रिय विमानस्थल".
• Tribhuvan International Airport (KTM) currently has only 1 runway.
• In 1955 the airport was inaugurated by King Mahendra and renamed Tribhuvan Airport in memory of the king's father.
• Because of Tribhuvan International Airport's high elevation of 4,390 feet, planes must typically fly at a faster airspeed in order to takeoff or land at KTM. Combined with a high temperature, this could make KTM a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
• The closest airport to Tribhuvan International Airport (KTM) is Ramechhap Airport (RHP), which is located 48 miles (77 kilometers) ESE of KTM.