Nonstop flight route between Kitadaito, Okinawa Prefecture, Japan and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Kitadaito Airport (KTD), Kitadaito, Okinawa Prefecture, Japan and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 7,235 miles (or 11,643 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 Kitadaito Airport and St. Louis Downtown 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 Kitadaito Airport and St. Louis Downtown 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 Kitadaito Airport (KTD):

• Kitadaito Airport was opened in 1971 as an emergency 760 meter airstrip, constructed of crushed coral by the United States Civil Administration of the Ryukyu Islands.
• The furthest airport from Kitadaito Airport (KTD) is Joinville-Lauro Carneiro de Loyola Airport (JOI), which is nearly antipodal to Kitadaito Airport (meaning Kitadaito Airport is almost on the exact opposite side of the Earth from Joinville-Lauro Carneiro de Loyola Airport), and is located 12,416 miles (19,982 kilometers) away in Joinville, Santa Catarina, Brazil.
• The closest airport to Kitadaito Airport (KTD) is Minami-Daito Airport (MMD), which is located only 8 miles (13 kilometers) SSW of KTD.
• Because of Kitadaito Airport's relatively low elevation of 71 feet, planes can take off or land at Kitadaito 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.
• In addition to being known as "Kitadaito Airport", other names for KTD include "北大東空港" and "Kitadaitō Kūkō".
• Kitadaito Airport (KTD) currently has only 1 runway.

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.
• 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.
• 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.
• 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.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.