Nonstop flight route between St. Louis, Missouri, United States and Chiang Mai, Thailand:

About this route:

A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Chiang Mai International Airport (CNX), Chiang Mai, Thailand would travel a Great Circle distance of 8,417 miles (or 13,546 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 Lambert–St. Louis International Airport and Chiang Mai International 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 Lambert–St. Louis International Airport and Chiang Mai International 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 Lambert–St. Louis International Airport (STL):

• In early October 2009, Southwest Airlines announced the addition of 6 daily flights to several cities it already served from St.
• The closest airport to Lambert–St. Louis International Airport (STL) is St. Louis Downtown Airport (CPS), which is located only 16 miles (27 kilometers) SE of STL.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• Because of Lambert–St. Louis International Airport's relatively low elevation of 605 feet, planes can take off or land at Lambert–St. Louis 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.
• In 1925, the airport became home to Naval Air Station St.
• In 1985, Southwest Airlines began service, an event that would lead to major changes at the airport in the coming years.
• Lambert again grew in importance for TWA after the airline declared bankruptcy in 1993 and moved its headquarters to St.
• The furthest airport from Lambert–St. Louis International Airport (STL) is Margaret River Airport (MGV), which is located 10,986 miles (17,681 kilometers) away in Margaret River, Western Australia, Australia.
• During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
• By September 2002, Lambert's passenger traffic had declined by 16.9% from before the terrorist attacks a year earlier, which was the 8th biggest percentage drop of the major US airports.

Facts about Chiang Mai International Airport (CNX):

• As a result of the temporary closure of Suvarnabhumi Airport in 2008 due to the protests, Chiang Mai became the alternative stop-over for China Airlines' Taipei-Europe flights and for Swiss International Airlines' Singapore-Zurich flights in the interim.
• The furthest airport from Chiang Mai International Airport (CNX) is Capitán FAP Renán Elías Olivera International Airport (PIO), which is located 11,965 miles (19,256 kilometers) away in Pisco, Peru.
• Chiang Mai International Airport is an international airport serving Chiang Mai, the capital city of Chiang Mai Province in Thailand.
• Chiang Mai International Airport (CNX) currently has only 1 runway.
• In addition to being known as "Chiang Mai International Airport", another name for CNX is "ท่าอากาศยานเชียงใหม่".
• The closest airport to Chiang Mai International Airport (CNX) is Lampang Airport (LPT), which is located 49 miles (79 kilometers) SE of CNX.
• Chiang Mai International Airport handled 5,463,921 passengers last year.