Nonstop flight route between Da Nang, Vietnam and Cahokia, Illinois (near St. Louis), United States:

About this route:

A direct, nonstop flight between Đà Nẵng International Airport (DAD), Da Nang, Vietnam and St. Louis Downtown Airport (CPS), Cahokia, Illinois (near St. Louis), United States would travel a Great Circle distance of 8,481 miles (or 13,648 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 Đà Nẵng International Airport and St. Louis Downtown 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 Đà Nẵng International Airport and St. Louis Downtown 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 Đà Nẵng International Airport (DAD):

• TransAsia Airways started service between Taipei and Da Nang in December 2009, and China Southern Airlines began service between Guangzhou and Da Nang in January 2010.
• Because of Đà Nẵng International Airport's relatively low elevation of 33 feet, planes can take off or land at Đà Nẵng 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.
• A new 20,000m² terminal, costing USD $84 million with a capacity of 4 million passengers per year, opened to receive its first domestic flight on 15 December.
• Đà Nẵng International Airport (DAD) has 2 runways.
• Both Tiger Airways and AirAsia terminated their respective SIN-DAD and KUL-DAD flight due to high airport fees.
• During the Vietnam War, the facility was known as Da Nang Air Base, and was a major United States military base.
• After the war, the facility was used by the French Air Force during the French Indochina War.
• The closest airport to Đà Nẵng International Airport (DAD) is Phu Bai International Airport (HUI), which is located 41 miles (66 kilometers) NW of DAD.
• The furthest airport from Đà Nẵng International Airport (DAD) is Rodríguez Ballón International Airport (AQP), which is nearly antipodal to Đà Nẵng International Airport (meaning Đà Nẵng International Airport is almost on the exact opposite side of the Earth from Rodríguez Ballón International Airport), and is located 12,412 miles (19,975 kilometers) away in Arequipa, Peru.
• In addition to being known as "Đà Nẵng International Airport", another name for DAD is "Sân bay Quốc tế Đà Nẵng".
• Đà Nẵng International Airport is located in Đà Nẵng, the largest city in central Vietnam.

Facts about St. Louis Downtown Airport (CPS):

• St. Louis Downtown Airport (CPS) has 3 runways.
• The furthest airport from St. Louis Downtown Airport (CPS) is Margaret River Airport (MGV), which is located 10,998 miles (17,700 kilometers) away in Margaret River, Western Australia, Australia.
• The closest airport to St. Louis Downtown Airport (CPS) is Lambert–St. Louis International Airport (STL), which is located only 16 miles (27 kilometers) NW of CPS.
• The airport closed in 1959 and reopened six years later as Bi-State Parks Airport.
• Because of St. Louis Downtown Airport's relatively low elevation of 413 feet, planes can take off or land at St. Louis Downtown 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.