Nonstop flight route between Incheon (near Seoul), South Korea and St. Louis, Missouri, United States:

About this route:

A direct, nonstop flight between Incheon International Airport (ICN), Incheon (near Seoul), South Korea and Lambert–St. Louis International Airport (STL), St. Louis, Missouri, United States would travel a Great Circle distance of 6,675 miles (or 10,742 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 Incheon 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 Incheon 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 Incheon International Airport (ICN):

• Incheon International Airport (ICN) has 3 runways.
• The main passenger terminal is the largest airport terminal in area in South Korea.
• Phase 2 construction began in 2002, and was originally expected to be completed in December 2008.
• Incheon International Airport handled 41,482,828 passengers last year.
• The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.
• Initially, there were numerous problems, mostly involving baggage handling, which required the system to be operated semi-automatically.
• The furthest airport from Incheon International Airport (ICN) is Villa Gesell Airport (VLG), which is nearly antipodal to Incheon International Airport (meaning Incheon International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,246 miles (19,707 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
• In addition to being known as "Incheon International Airport", other names for ICN include "인천국제공항 仁川國際空港" and "Incheon Gukje Gonghang Inch'ŏn Kukche Konghang".
• Because of Incheon International Airport's relatively low elevation of 23 feet, planes can take off or land at Incheon 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.
• Air traffic increased markedly, and by early 2002, it became apparent that the airport would be saturated by 2006.

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

• To handle the increasing passenger traffic, Minoru Yamasaki was commissioned to design a new terminal at Lambert.
• 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.
• 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.
• 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.
• Despite the entry of Southwest Airlines in the market, the TWA buyout of Ozark and subsequent increase in the number of nonstop cities served, the total number of passengers using Lambert held steady from 1985 through 1993, ranging between 19 million and 20 million passengers per year throughout the period.
• On October 22, 2012, a Virgin Atlantic Airbus A340 landed at Lambert carrying VA Executives, including Richard Branson to discuss and explore the likelihood of a St Louis Route.
• 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.
• Named for Albert Bond Lambert, an Olympic medalist and prominent St.
• 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.
• Lambert–St. Louis International Airport (STL) has 4 runways.
• In 2006, the United States Air Force announced plans to turn the 131st Fighter Wing of the Missouri Air National Guard into the 131st Bomb Wing.
• 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.