Nonstop flight route between Seoul, South Korea and Ketchikan, Alaska, United States:

About this route:

A direct, nonstop flight between Gimpo International Airport (SEL), Seoul, South Korea and Ketchikan International Airport (KTN), Ketchikan, Alaska, United States would travel a Great Circle distance of 4,539 miles (or 7,305 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 Gimpo International Airport and Ketchikan 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 Gimpo International Airport and Ketchikan 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 Gimpo International Airport (SEL):

• Gimpo International Airport (SEL) has 2 runways.
• The furthest airport from Gimpo International Airport (SEL) is Villa Gesell Airport (VLG), which is nearly antipodal to Gimpo International Airport (meaning Gimpo International Airport is almost on the exact opposite side of the Earth from Villa Gesell Airport), and is located 12,226 miles (19,676 kilometers) away in Villa Gesell, Buenos Aires, Argentina.
• The airfield was originally constructed in 1939–1942 during the Japanese Imperial period.
• On 29 November 2003, scheduled services between Gimpo and Tokyo International Airport in Tokyo, Japan began.
• In addition to being known as "Gimpo International Airport", other names for SEL include "김포국제공항 金浦國際空港", "Gimpo Gukje Gonghang Kimp'o Kukche Konghang", "GMP" and "RKSS".
• The Aviation and Railway Accident Investigation Board has its FDR/CVR Analysis and Wreckage Laboratory on the property of Gimpo International Airport.
• The closest airport to Gimpo International Airport (SEL) is Gimpo International Airport (GMP), which is located only 0 mile (0 kilometer) N of SEL.
• Gimpo International Airport handled 19,424,032 passengers last year.
• Because of Gimpo International Airport's relatively low elevation of 58 feet, planes can take off or land at Gimpo 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 Ketchikan International Airport (KTN):

• Ketchikan International Airport covers an area of 2,600 acres at an elevation of 89 feet above mean sea level.
• Because of Ketchikan International Airport's relatively low elevation of 89 feet, planes can take off or land at Ketchikan 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 furthest airport from Ketchikan International Airport (KTN) is Port Alfred Airport (AFD), which is located 10,613 miles (17,081 kilometers) away in Port Alfred, South Africa.
• The closest airport to Ketchikan International Airport (KTN) is Ketchikan Harbor Seaplane Base (WFB), which is located only 2 miles (3 kilometers) ESE of KTN.
• Ketchikan International Airport (KTN) has 2 runways.
• Ketchikan International Airport is a state-owned, public-use airport located one nautical mile west of the central business district of Ketchikan, a city in Ketchikan Gateway Borough in the U.S.
• Around the World War II era, air service to Ketchikan was possible using an old military airfield on Annette Island.
• As per Federal Aviation Administration records, the airport had 108,837 passenger boardings in calendar year 2008, 96,996 enplanements in 2009, and 100,138 in 2010.