Nonstop flight route between Kelso, Washington, United States and Incheon (near Seoul), South Korea:

About this route:

A direct, nonstop flight between Southwest Washington Regional Airport (KLS), Kelso, Washington, United States and Incheon International Airport (ICN), Incheon (near Seoul), South Korea would travel a Great Circle distance of 5,242 miles (or 8,435 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 Southwest Washington Regional Airport and Incheon 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 Southwest Washington Regional Airport and Incheon 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 Southwest Washington Regional Airport (KLS):

• The closest airport to Southwest Washington Regional Airport (KLS) is South Lewis County Airport (TDO), which is located 25 miles (41 kilometers) N of KLS.
• Southwest Washington Regional Airport (KLS) currently has only 1 runway.
• The furthest airport from Southwest Washington Regional Airport (KLS) is Tôlanaro Airport (FTU), which is located 10,876 miles (17,503 kilometers) away in Tôlanaro, Madagascar.
• There is one flight school located at the airport.
• Southwest Washington Regional Airport covers an area of 110 acres at an elevation of 20 feet above mean sea level.
• Because of Southwest Washington Regional Airport's relatively low elevation of 20 feet, planes can take off or land at Southwest Washington Regional 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 Incheon International Airport (ICN):

• 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".
• The Cargo Terminal Complex comprises six cargo terminals, five separate warehouses, All E/F Class 36 parking stands, and administration offices.
• There are three parallel paved asphalt runways in operation, 15R/33L, 15L/33R and 16/34.
• Incheon International Airport is the largest airport in South Korea, the primary airport serving the Seoul National Capital Area, and one of the largest and busiest airports in the world.
• 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.
• 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.
• To further upgrade service, Incheon and major Korean logistics firm Hanjin Corporation agreed on 10 January 2008 to build a nine-story hospital near the airport.
• Air traffic increased markedly, and by early 2002, it became apparent that the airport would be saturated by 2006.
• 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.
• Incheon International Airport (ICN) has 3 runways.
• After the Seoul Olympics of 1988, international air traffic to Korea increased.