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

About this route:

A direct, nonstop flight between Guam International Airport (GUM), Hagåtña, Guam and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 7,388 miles (or 11,890 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 Guam International 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 Guam International 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 Guam International Airport (GUM):

• The old terminal served as the corporate headquarters of Continental Micronesia until late 2010.
• Guam International Airport handled 2,807,205 passengers last year.
• The USCBP inspects all arriving passengers except nonstop flights from the States.
• Japan Airlines opened a flight crew training center at GUM in October 2013.
• The closest airport to Guam International Airport (GUM) is Andersen Air Force Base (UAM), which is located only 11 miles (17 kilometers) NE of GUM.
• Guam International Airport (GUM) has 2 runways.
• The furthest airport from Guam International Airport (GUM) is Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho) (SSA), which is nearly antipodal to Guam International Airport (meaning Guam International Airport is almost on the exact opposite side of the Earth from Salvador-Deputado Luís Eduardo Magalhães International Airport (2 de Julho)), and is located 12,223 miles (19,671 kilometers) away in Salvador, Bahia, Brazil.
• Because of Guam International Airport's relatively low elevation of 297 feet, planes can take off or land at Guam 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.
• In addition to being known as "Guam International Airport", another name for GUM is "Antonio B. Won Pat International Airport".
• The airport was built by the Japanese Navy about 1943, calling the military airfield Guamu Dai Ni as part of their defense of the Marianas.

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.
• 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.
• 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.