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

Arrival Airport:

Distance from CPA to DIO:
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- About this route
- CPA Airport Information
- DIO Airport Information
- Facts about CPA
- Facts about DIO
- Map of Nearest Airports to CPA
- List of Nearest Airports to CPA
- Map of Furthest Airports from CPA
- List of Furthest Airports from CPA
- 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 Cape Palmas Airport (CPA), Cape Palmas, Liberia and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 7,500 miles (or 12,070 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 Cape Palmas 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 Cape Palmas 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: | CPA / GLCP |
Airport Name: | Cape Palmas Airport |
Location: | Cape Palmas, Liberia |
GPS Coordinates: | 4°22'45"N by 7°41'48"W |
Area Served: | Harper |
Airport Type: | Public |
Elevation: | 20 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from CPA |
More Information: | CPA 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 Cape Palmas Airport (CPA):
- The closest airport to Cape Palmas Airport (CPA) is Sasstown Airport (SAZ), which is located 54 miles (88 kilometers) WNW of CPA.
- Because of Cape Palmas Airport's relatively low elevation of 20 feet, planes can take off or land at Cape Palmas 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.
- Cape Palmas Airport (CPA) currently has only 1 runway.
- The furthest airport from Cape Palmas Airport (CPA) is Aranuka Airport (AAK), which is nearly antipodal to Cape Palmas Airport (meaning Cape Palmas Airport is almost on the exact opposite side of the Earth from Aranuka Airport), and is located 12,108 miles (19,486 kilometers) away in Aranuka, Kiribati.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- The school year 1953–1954 in Little Diomede Island was adapted to better serve the local needs.
- 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.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- 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 island's only school, and likely the most isolated school in the United States, the Diomede School has grades from Pre-K through 12 and approximately 40 students and 5 teachers.
- The United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- The current location of the city, which is believed to be at least 3,000 years old by some archaeologists, was originally a spring hunting campsite and the early explorers from the west found the Iñupiat at Diomede had an advanced culture including their elaborate whale hunting ceremonies.
- There were 43 households out of which 37.2% had children under the age of 18 living with them, 20.9% were married couples living together, 32.6% had a female householder with no husband present, and 27.9% were non-families.