Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Tokyo, Honshū, Japan:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Tokyo International Airport (HND), Tokyo, Honshū, Japan would travel a Great Circle distance of 6,404 miles (or 10,306 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 Tokyo 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 Tokyo 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):

• The two survivors out of the airport's original four hangars, Hangar 1 and Hangar 2, are listed on the National Register of Historic Places.
• 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 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• 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 Tokyo International Airport (HND):

• During World War II, both IJA and Haneda Airport shifted to almost exclusively military transport services.
• Tokyo International Airport, commonly known as Haneda Airport or Tokyo Haneda Airport, is one of the two primary airports that serve the Greater Tokyo Area, and is the primary base of Japan's two major domestic airlines, Japan Airlines and All Nippon Airways, as well as low-cost carriers Air Do, Skymark Airlines, Skynet Asia Airways, and StarFlyer.
• In October 2006, Japanese Prime Minister Shinzo Abe and Chinese Premier Wen Jiabao reached an informal agreement to launch bilateral talks regarding an additional city-to-city service between Haneda and Shanghai Hongqiao International Airport.
• In addition to being known as "Tokyo International Airport", other names for HND include "東京国際空港" and "Tōkyō Kokusai Kūkō".
• The closest airport to Tokyo International Airport (HND) is Narita International Airport (NRT), which is located 37 miles (59 kilometers) ENE of HND.
• The Transport Ministry released an expansion plan for Haneda in 1983 under which it would be expanded onto new landfill in Tokyo Bay with the aim of increasing capacity, reducing noise and making use of the large amount of garbage generated by Tokyo.
• Tokyo International Airport (HND) has 4 runways.
• The furthest airport from Tokyo International Airport (HND) is Diomício Freitas/Forquilhinha Airport (CCM), which is located 11,722 miles (18,864 kilometers) away in Criciúma, Santa Catarina, Brazil.
• Haneda Airport's new international terminal has received numerous complaints from passengers using it during night hours.
• Because of Tokyo International Airport's relatively low elevation of 21 feet, planes can take off or land at Tokyo 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.