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

About this route:

A direct, nonstop flight between St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States and Eareckson Air Station (SYA), Shemya, Alaska, United States would travel a Great Circle distance of 4,376 miles (or 7,043 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 Eareckson Air Station, 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 Eareckson Air Station. 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 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.
• 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.
• St. Louis Downtown Airport (CPS) has 3 runways.
• Taken over by the United States Army Air Forces on 1 August 1939 as a basic pilot training airfield.
• 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 Eareckson Air Station (SYA):

• The spring of 1944 brought improving weather and the B-24s and PV-1s to fly more missions over the Kuriles.
• The mission of Eleventh Air Force was to take advantage of the new airfields on Shemya and Attu, and carry out offensive operations against the enemy forces in the Kuriles.
• Eareckson Air Station (SYA) currently has only 1 runway.
• In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and "  ".
• Jurisdiction of Shemya AFB was transferred from the Aerospace Defense Command to the Strategic Air Command when the former was inactivated on 1 October 1979.
• On 10 July 1943, eight B-25 Mitchells from the 77th Bombardment Squadron left Adak AAF and refueled at Alexai Point AAF on Attu.
• Because of Eareckson Air Station's relatively low elevation of 97 feet, planes can take off or land at Eareckson Air Station 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 Eareckson Air Station (SYA) is Casco Cove Coast Guard Station (ATU), which is located 40 miles (65 kilometers) WNW of SYA.
• In August, after the Soviet Union declared war against the Japanese Empire, B-24s were dispatched on reconnaissance and intelligence-gathering missions to observe the Russian activity in the Kuriles.
• The Korean War brought extensive use by the Military Air Transport Service for the logistical support of Korea and Japan.
• The furthest airport from Eareckson Air Station (SYA) is Cape Town International Airport (CPT), which is located 10,668 miles (17,168 kilometers) away in Cape Town, South Africa.