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

About this route:

A direct, nonstop flight between Nội Bài International Airport (HAN), Hanoi, Vietnam and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 8,163 miles (or 13,137 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 Nội Bài International 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 Nội Bài International 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 Nội Bài International Airport (HAN):

• In addition to being known as "Nội Bài International Airport", another name for HAN is "Sân bay Quốc tế Nội Bài".
• At 650 ha, Noi Bai is the second-largest airport in Vietnam, behind the 800 ha Tan Son Nhat International Airport.
• The furthest airport from Nội Bài International Airport (HAN) is Diego Aracena International Airport (IQQ), which is nearly antipodal to Nội Bài International Airport (meaning Nội Bài International Airport is almost on the exact opposite side of the Earth from Diego Aracena International Airport), and is located 12,174 miles (19,591 kilometers) away in Iquique, Chile.
• The airport has a new 3,800-meter paved runway and an older 3,200-meter paved runway
• Nội Bài International Airport (HAN) has 2 runways.
• The closest airport to Nội Bài International Airport (HAN) is Cat Bi International Airport (HPH), which is located 65 miles (105 kilometers) ESE of HAN.
• In 2010, the airport received approximately 9.5 million passengers, which made it overloaded, and accounted for one-third of international departures and arrivals at Vietnam's three international airports.
• Because of Nội Bài International Airport's relatively low elevation of 39 feet, planes can take off or land at Nội Bài 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 Lambert–St. Louis International Airport (STL):

• 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 1985, Southwest Airlines began service, an event that would lead to major changes at the airport in the coming years.
• 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.
• Named for Albert Bond Lambert, an Olympic medalist and prominent 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's passenger traffic slowly rebounded from American Airlines' cuts of November 2003, increasing from a low of 13.4 million passengers enplaned in 2004, to 15.4 million by 2007, and increase of almost 15 percent.
• During the war, the airport became a manufacturing base for McDonnell Aircraft and Curtiss-Wright.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• 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 June 1920, the Aero Club of St.