Nonstop flight route between Cahokia, Illinois (near St. Louis), United States and Iwo Jima, Bonin Islands, Japan:

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (IWO), Iwo Jima, Bonin Islands, Japan would travel a Great Circle distance of 6,938 miles (or 11,165 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 Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2, 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 Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2. 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):

• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
• The airport opened in 1929 as Curtiss-Steinberg Airport.
• St. Louis Downtown Airport (CPS) has 3 runways.
• 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 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 airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• 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.

Facts about Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (IWO):

• A third Japanese airfield 24°47′37″N 141°19′29″E / 24.79361°N 141.32472°E / 24.79361.
• The closest airport to Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (IWO) is Hachijojima Airport (HAC), which is located 583 miles (938 kilometers) N of IWO.
• Central Field was also the headquarters for VII Fighter Command from March 1 – December 1, 1945, along with the intelligence-gathering 41st Photographic Reconnaissance Squadron from August though mid-September 1945.
• The furthest airport from Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (IWO) is Cabo Frio International Airport (CFB), which is nearly antipodal to Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 (meaning Central Field (Iwo Jima)Motoyama No. 2Airfield No. 2 is almost on the exact opposite side of the Earth from Cabo Frio International Airport), and is located 12,187 miles (19,612 kilometers) away in Cabo Frio, Rio de Janeiro, Brazil.