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

About this route:

A direct, nonstop flight between Suvarnabhumi Airport (NBK), 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 (NBK):

• The airport is located in Racha Thewa in Bang Phli, Samut Prakan, about 25 kilometres east of downtown Bangkok.
• The closest airport to Suvarnabhumi Airport (NBK) is Suvarnabhumi Airport (BKK), which is located only 0 mile (0 kilometer) N of NBK.
• On 15 September 2006, the airport started limited daily operations with Jetstar Asia Airways operating three Singapore to Bangkok flights 3K511.
• In January 2007, ruts were discovered in the runways at Suvarnabhumi.
• In addition to being known as "Suvarnabhumi Airport", other names for NBK include "ท่าอากาศยานสุวรรณภูมิ" and "BKK".
• Symbolic first test flights involving two Thai Airways aircraft were held on 29 September 2005, a previously announced deadline for opening.
• 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.
• Full tests of the airport took place on 3 and 29 July 2006.
• Suvarnabhumi Airport (NBK) has 2 runways.
• Airports of Thailand found that the cost of fixing 60 identified problems at the airport would be less than 1% of the total airline cost and the problems could be fixed in up to four to five years.
• The furthest airport from Suvarnabhumi Airport (NBK) 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.

Facts about St. Louis Regional Airport (ALN):

• 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.
• In the spring of 2004 the airport was at the center of a scandal.
• 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.
• St. Louis Regional Airport (ALN) has 2 runways.
• West Star Aviation is the largest fixed base operations company at the airport.
• 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.