Nonstop flight route between Alton, Illinois, United States and Trincomalee, Sri Lanka:

About this route:

A direct, nonstop flight between St. Louis Regional Airport (ALN), Alton, Illinois, United States and China Bay Airport (TRR), Trincomalee, Sri Lanka would travel a Great Circle distance of 9,112 miles (or 14,664 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 Regional Airport and China Bay 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 St. Louis Regional Airport and China Bay 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 St. Louis Regional Airport (ALN):

• 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• 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 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• West Star Aviation is the largest fixed base operations company at the airport.
• The 2,250 acres airfield sits at 544 ft MSL.

Facts about China Bay Airport (TRR):

• China Bay Airport (TRR) currently has only 1 runway.
• The furthest airport from China Bay Airport (TRR) is Seymour Airport (GPS), which is located 11,625 miles (18,709 kilometers) away in Baltra Island, Galápagos Islands, Ecuador.
• Because of China Bay Airport's relatively low elevation of 7 feet, planes can take off or land at China Bay 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.
• After independence, the British maintained two military airfields in Ceylon, the Royal Air Force station at RAF Katunayake and the naval base in Trincomalee, and camps at Diyatalawa.
• In addition to being known as "China Bay Airport", another name for TRR is "சீனக்குடா விமான நிலையம்චීන වරාය ගුවන්තොටුපළ".
• During the 1920s the British built an airfield in China Bay in eastern Ceylon.
• The closest airport to China Bay Airport (TRR) is Anuradhapura Airport (ACJ), which is located 54 miles (87 kilometers) WSW of TRR.