Nonstop flight route between Tchien, Liberia and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from THC to DIO:
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- About this route
- THC Airport Information
- DIO Airport Information
- Facts about THC
- Facts about DIO
- Map of Nearest Airports to THC
- List of Nearest Airports to THC
- Map of Furthest Airports from THC
- List of Furthest Airports from THC
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
About this route:
A direct, nonstop flight between Tchien Airport (THC), Tchien, Liberia and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 7,381 miles (or 11,879 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 Diomede Heliport (FAA: DM2), 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 Diomede Heliport (FAA: DM2). You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | THC / GLTN |
Airport Name: | Tchien Airport |
Location: | Tchien, Liberia |
GPS Coordinates: | 6°2'59"N by 8°8'20"W |
Area Served: | Zwedru |
Airport Type: | Public |
Elevation: | 240 feet (73 meters) |
# of Runways: | 1 |
View all routes: | Routes from THC |
More Information: | THC Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | DIO / |
Airport Name: | Diomede Heliport (FAA: DM2) |
Location: | Diomede, Alaska, United States |
GPS Coordinates: | 65°45'29"N by 168°57'6"W |
Elevation: | 0 feet (0 meters) |
View all routes: | Routes from DIO |
More Information: | DIO Maps & Info |
Facts about Tchien Airport (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.
- The closest airport to Tchien Airport (THC) is Guiglo Airport (GGO), which is located 54 miles (87 kilometers) NE of THC.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- According to the United States Census Bureau, the village has a total area of 2.84 square miles, all of it land.
- Today there are about 30 buildings on the island, including the residential housing that was mainly built in the 1970s and 1980s.
- Funds for improving the water system have been requested both by the city and the school.
- Because of Diomede Heliport (FAA: DM2)'s relatively low elevation of 0 feet, planes can take off or land at Diomede Heliport (FAA: DM2) 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 median income for a household in the city was $23,750, and the median income for a family was $24,583.
- The furthest airport from Diomede Heliport (FAA: DM2) (DIO) is Teniente Rodolfo Marsh Airport (TNM), which is located 10,411 miles (16,755 kilometers) away in Villa Las Estrellas, Antarctica.
- During the centuries, the village on Little Diomede was gradually inhabited as a permanent settlement and the entire island was incorporated into the city of Diomede in 1970.
- At the beginning of the Cold War in the late 1940s Big Diomede became a Russian military base and all its native residents were removed to mainland Russia.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The city levies a 3% sales tax, but there are no property taxes on the island.