Nonstop flight route between Bangkok, Thailand and Alton, Illinois, United States:

About this route:

A direct, nonstop flight between Suvarnabhumi Airport (BKK), Bangkok, Thailand and St. Louis Regional Airport (ALN), Alton, Illinois, United States would travel a Great Circle distance of 8,737 miles (or 14,061 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 Suvarnabhumi 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 Suvarnabhumi 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 Suvarnabhumi Airport (BKK):

• The furthest airport from Suvarnabhumi Airport (BKK) is Jorge Chávez International Airport (LIM), which is nearly antipodal to Suvarnabhumi Airport (meaning Suvarnabhumi Airport is almost on the exact opposite side of the Earth from Jorge Chávez International Airport), and is located 12,252 miles (19,718 kilometers) away in Callao (near Lima), Peru.
• Suvarnabhumi officially opened at 03:00 on 28 September 2006, taking over all flights from Don Mueang.
• In addition to being known as "Suvarnabhumi Airport", other names for BKK include "ท่าอากาศยานสุวรรณภูมิ" and "VTBS".
• Further investigations found that taxilane and taxiway rutting was caused by separation of the asphalt binder from the aggregate surface due to prolonged water infiltration into the asphalt concrete base course, a phenomenon known as "stripping." The 23-centimetre thick base course is the top-most layer of the tarmac.
• Suvarnabhumi Airport (BKK) has 2 runways.
• The airport was due to open in late 2005, but a series of budget overruns, construction flaws, and allegations of corruption plagued the project.
• Suvarnabhumi is the sixteenth busiest airport in the world, sixth busiest airport in Asia, and the busiest in the country, having handled 53 million passengers in 2012, and is also a major air cargo hub, with a total of 96 airlines.
• The closest airport to Suvarnabhumi Airport (BKK) is Suvarnabhumi Airport (NBK), which is located only 0 mile (0 kilometer) N of BKK.
• Suvarnabhumi Airport's main terminal roof is designed with structural elements and bays placed in a cantilevered, wavelike form to appear to "float" over the concourse beneath.
• Suvarnabhumi was officially opened for limited domestic flight service on 15 September 2006, and opened for most domestic and all international commercial flights on 28 September 2006.
• Because of Suvarnabhumi Airport's relatively low elevation of 5 feet, planes can take off or land at Suvarnabhumi 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.

Facts about St. Louis Regional Airport (ALN):

• 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• 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.
• In the spring of 2004 the airport was at the center of a scandal.
• 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.
• Civic Memorial Airport opened in 1946 and received its current name in 1984.
• The 2,250 acres airfield sits at 544 ft MSL.
• 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.