Nonstop flight route between Tchien, Liberia and Barter Island, Alaska, United States:

About this route:

A direct, nonstop flight between Tchien Airport (THC), Tchien, Liberia and Barter Island LRRS Airport (BTI), Barter Island, Alaska, United States would travel a Great Circle distance of 6,781 miles (or 10,913 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 Tchien Airport and Barter Island LRRS 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 Tchien Airport and Barter Island LRRS 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 Tchien Airport (THC):

• The closest airport to Tchien Airport (THC) is Guiglo Airport (GGO), which is located 54 miles (87 kilometers) NE of THC.
• Because of Tchien Airport's relatively low elevation of 240 feet, planes can take off or land at Tchien 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.
• Tchien Airport (THC) currently has only 1 runway.
• The furthest airport from Tchien Airport (THC) is Arorae Island Airport (AIS), which is nearly antipodal to Tchien Airport (meaning Tchien Airport is almost on the exact opposite side of the Earth from Arorae Island Airport), and is located 12,022 miles (19,347 kilometers) away in Arorae Island, Kiribati.

Facts about Barter Island LRRS Airport (BTI):

• The furthest airport from Barter Island LRRS Airport (BTI) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,003 miles (16,099 kilometers) away in Villa Las Estrellas, Antarctica.
• The radar station was upgraded with an AN/FPS-117 minimally attended Long Range surveillance radar in the winter of 1990.
• In addition to being known as "Barter Island LRRS Airport", another name for BTI is "Barter Island LRRS BAR-MAIN".
• Barter Island LRRS Airport (BTI) currently has only 1 runway.
• Because of Barter Island LRRS Airport's relatively low elevation of 2 feet, planes can take off or land at Barter Island LRRS 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 closest airport to Barter Island LRRS Airport (BTI) is Deadhorse Airport (SCC), which is located 115 miles (184 kilometers) W of BTI.
• With the signing of the North American Air Defence Modernization agreement at the "Shamrock Summit" between Prime Minister Mulroney and President Reagan in Quebec City on 18 March 1985, the DEW Line began its eventual upgrading and transition becoming the North Warning System of today.