Nonstop flight route between St. Louis, Missouri, United States and Thanh Hoa, Vietnam:

About this route:

A direct, nonstop flight between Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States and Tho Xuan Airport (THD), Thanh Hoa, Vietnam would travel a Great Circle distance of 8,257 miles (or 13,288 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 Tho Xuan 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 Tho Xuan 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):

• After the war, NAS St.
• During 2008, Lambert's position as an American Airlines hub faced further pressure due to increased fuel costs and softened demand because of a depressed economy.
• In the late 1920s, Lambert Field became the first airport with an air traffic control system—albeit one that communicated with pilots via waving flags.
• 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.
• In 1982, Trans World Airlines moved its hub from Kansas City International Airport.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• 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.
• The September 11, 2001 terrorist attacks were a huge demand shock to air service nationwide, with total airline industry domestic revenue passenger miles dropping 20% in October 2001 and 17% in November 2001.
• 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.

Facts about Tho Xuan Airport (THD):

• In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".
• The furthest airport from Tho Xuan Airport (THD) is Ilo Airport (ILQ), which is nearly antipodal to Tho Xuan Airport (meaning Tho Xuan Airport is almost on the exact opposite side of the Earth from Ilo Airport), and is located 12,178 miles (19,599 kilometers) away in Ilo, Moquegua Region, Peru.
• The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.