Nonstop flight route between Incheon (near Seoul), South Korea and Twin Hills, Alaska, United States:

About this route:

A direct, nonstop flight between Incheon International Airport (ICN), Incheon (near Seoul), South Korea and Twin Hills Airport (TWA), Twin Hills, Alaska, United States would travel a Great Circle distance of 3,474 miles (or 5,590 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 Twin Hills 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 Twin Hills 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):

• The passenger concourse was completed at the end of May 2008, and all foreign airlines use this terminal as of 10 June 2008.
• Incheon International Airport handled 41,482,828 passengers last year.
• After the Seoul Olympics of 1988, international air traffic to Korea increased.
• The airport holds an unbreakable record of being ranked the Best Airport Worldwide for 7 consecutive years by the Airports Council International 's Airport Service Quality award from year 2005 to 2011, and was also rated the world's best among airports of its size and region in year 2012 due to the institution's decision to discontinue the Best Airport Worldwide category.
• 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.
• 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".
• Estimated to be completed in 2020, this is the final and the ultimate construction stage.
• 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.
• The Incheon International Airport Railroad connects Incheon International Airport to Seoul Station in downtown Seoul.
• 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.
• The closest airport to Incheon International Airport (ICN) is Gimpo International Airport (GMP), which is located 20 miles (33 kilometers) ENE of ICN.

Facts about Twin Hills Airport (TWA):

• In addition to being known as "Twin Hills Airport", another name for TWA is "A63".
• Twin Hills Airport is a state-owned, public-use airport serving Twin Hills, in the Dillingham Census Area of the U.S.
• Twin Hills Airport (TWA) currently has only 1 runway.
• The closest airport to Twin Hills Airport (TWA) is Togiak Airport (TOG), which is located only 5 miles (7 kilometers) WSW of TWA.
• Because of Twin Hills Airport's relatively low elevation of 82 feet, planes can take off or land at Twin Hills 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 Twin Hills Airport (TWA) is Cape Town International Airport (CPT), which is located 10,701 miles (17,222 kilometers) away in Cape Town, South Africa.