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

About this route:

A direct, nonstop flight between Hilo International Airport (ITO), Hilo, Hawaii, United States and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 4,041 miles (or 6,504 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 Hilo 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 Hilo 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 Hilo International Airport (ITO):

• Hilo International Airport handled 1,279,342 passengers last year.
• Hilo International Airport (ITO) has 2 runways.
• The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
• In May 1989, the state Legislature renamed General Lyman Field to "Hilo International Airport".
• The primary reason for Hilo International Airport's relatively stagnant passenger count is the lack of tourism within the airport's service area, which includes the districts of Hilo and Puna, as well as portions of the districts of Hāmākua and Kaʻū, relative to the Kona district and Kohala district and the islands of Kauaʻi and Maui.
• The furthest airport from Hilo International Airport (ITO) is Maun Airport (MUB), which is nearly antipodal to Hilo International Airport (meaning Hilo International Airport is almost on the exact opposite side of the Earth from Maun Airport), and is located 12,336 miles (19,854 kilometers) away in Maun, Botswana.
• The main passenger terminal consists of three interconnected buildings totaling approximately 220,000 square feet.
• Because of Hilo International Airport's relatively low elevation of 38 feet, planes can take off or land at Hilo 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.
• A groundbreaking ceremony for a new terminal building was held on July 17, 1952.

Facts about St. Louis Downtown Airport (CPS):

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