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

About this route:

A direct, nonstop flight between Tho Xuan Airport (THD), Thanh Hoa, Vietnam and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States 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 Tho Xuan Airport and Lambert–St. Louis 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 Tho Xuan Airport and Lambert–St. Louis 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 Tho Xuan Airport (THD):

• 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.
• In addition to being known as "Tho Xuan Airport", other names for THD include "THD[1]" and "VV01[verification needed]".
• The closest airport to Tho Xuan Airport (THD) is Vinh Airport (VII), which is located 82 miles (131 kilometers) S of THD.

Facts about Lambert–St. Louis International Airport (STL):

• 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.
• 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.
• 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.
• TWA's hub grew again in 1986 when the airline bought Ozark Airlines, which had its hub at Lambert's Concourse D.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• In 1925, the airport became home to Naval Air Station St.
• 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.
• Named for Albert Bond Lambert, an Olympic medalist and prominent St.
• As of May 2012, the airport is on a significant upswing, with traffic up by about 14%.