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):

• Historic Hangar #2 houses the Greater Saint Louis Air & Space Museum and the airport is still home to the nation's oldest flight school, Parks College of Engineering and Aviation's Center for Aerospace Sciences, which holds CAA Flight School Certificate #1.
• 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.
• 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.
• St. Louis Downtown Airport (CPS) has 3 runways.

Facts about Tokyo International Airport (HND):

• In addition to being known as "Tokyo International Airport", other names for HND include "東京国際空港" and "Tōkyō Kokusai Kūkō".
• While most international flights moved from Haneda to Narita in 1978, airlines based in the Republic of China continued to use Haneda Airport for many years due to the ongoing political conflict between the Republic of China and the People's Republic of China.
• 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.
• On September 12, 1945, General Douglas MacArthur, Supreme Commander for the Allied Powers and head of the occupation of Japan following World War II, ordered that Haneda be handed over to the occupation forces.
• 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.
• 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.
• The closest airport to Tokyo International Airport (HND) is Narita International Airport (NRT), which is located 37 miles (59 kilometers) ENE of HND.
• Following Tokyo's winning bid for the 2020 Summer Olympics, the Japanese government plans to increase the combined slot capacity of Haneda and Narita, and to construct a new railway line linking Haneda Airport to Tokyo Station in approximately 18 minutes.JR East is also considering extending an existing freight line from Tamachi Station on the Yamanote Line to create a third rail link to the airport, which may potentially be connected to the Ueno-Tokyo Line to offer a through connection to Ueno and points on the Utsunomiya Line and Takasaki Line.
• Haneda Air Force Base received its first international passenger flights in 1947 when Northwest Orient Airlines began DC-4 flights to the United States, China, South Korea, and the Philippines.
• Haneda handled 68,906,636 passengers in 2013.
• 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.