Nonstop flight route between Hilo, Hawaii, United States and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Hilo International Airport (ITO), Hilo, Hawaii, United States and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 4,047 miles (or 6,513 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 Regional 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 Regional 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):

• Over 95% of aircraft operations take place on Runway 8-26 because the orientation of Runway 3-21 makes direct flights over residential and commercial areas unavoidable.
• During martial law in the territory following the attack on Pearl Harbor, all airports in the Hawaiian Islands came under the control of the U.S.
• Hilo International Airport (ITO) has 2 runways.
• 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.
• The closest airport to Hilo International Airport (ITO) is Pōhakuloa Training Area (BSF), which is located 44 miles (71 kilometers) W of ITO.
• 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.
• In May 1989, the state Legislature renamed General Lyman Field to "Hilo International Airport".
• Hilo International Airport handled 1,279,342 passengers last year.
• The main passenger terminal consists of three interconnected buildings totaling approximately 220,000 square feet.

Facts about St. Louis Regional Airport (ALN):

• St. Louis Regional Airport (ALN) has 2 runways.
• In the spring of 2004 the airport was at the center of a scandal.
• Its operations are paid for by an airport taxation district created in 1946, which collects taxes from property owners in the Madison County townships of Alton, Wood River, Foster and Fort Russell.
• The furthest airport from St. Louis Regional Airport (ALN) is Margaret River Airport (MGV), which is located 11,002 miles (17,706 kilometers) away in Margaret River, Western Australia, Australia.
• Because of St. Louis Regional Airport's relatively low elevation of 544 feet, planes can take off or land at St. Louis Regional 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 Regional Airport (ALN) is Lambert–St. Louis International Airport (STL), which is located only 20 miles (32 kilometers) WSW of ALN.