Nonstop flight route between Diomede, Alaska, United States and Keokuk, Iowa, United States:
Departure Airport:

Arrival Airport:

Distance from DIO to EOK:
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- About this route
- DIO Airport Information
- EOK Airport Information
- Facts about DIO
- Facts about EOK
- Map of Nearest Airports to DIO
- List of Nearest Airports to DIO
- Map of Furthest Airports from DIO
- List of Furthest Airports from DIO
- Map of Nearest Airports to EOK
- List of Nearest Airports to EOK
- Map of Furthest Airports from EOK
- List of Furthest Airports from EOK
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Keokuk Municipal Airport (EOK), Keokuk, Iowa, United States would travel a Great Circle distance of 3,369 miles (or 5,422 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 Diomede Heliport (FAA: DM2) and Keokuk Municipal 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 Diomede Heliport (FAA: DM2) and Keokuk Municipal Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | EOK / KEOK |
Airport Name: | Keokuk Municipal Airport |
Location: | Keokuk, Iowa, United States |
GPS Coordinates: | 40°27'36"N by 91°25'42"W |
Area Served: | Keokuk, Iowa |
Operator/Owner: | City of Keokuk |
Airport Type: | Public |
Elevation: | 671 feet (205 meters) |
# of Runways: | 2 |
View all routes: | Routes from EOK |
More Information: | EOK Maps & Info |
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 United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- The first square building in the island was a small Catholic church, which was planned by Father Bellarmine Lafortune in 1935 and built by Father Thomas Cunningham during his residency in the island between 1936 and 1947.
- Frozen ground and lack of soil on the rocky island also prevents digging graves, but rocks are piled on top of the burial sites instead.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- Despite being separated by the new border after the Alaska purchase in 1867, Big Diomede had been home to families now living on Little Diomede and the people living on the American side of the border were very close relatives to those living on the Russian side.
- 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.
Facts about Keokuk Municipal Airport (EOK):
- The closest airport to Keokuk Municipal Airport (EOK) is Southeast Iowa Regional Airport (BRL), which is located 27 miles (44 kilometers) NE of EOK.
- Because of Keokuk Municipal Airport's relatively low elevation of 671 feet, planes can take off or land at Keokuk Municipal 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.
- Keokuk Municipal Airport (EOK) has 2 runways.
- The furthest airport from Keokuk Municipal Airport (EOK) is Margaret River Airport (MGV), which is located 10,915 miles (17,566 kilometers) away in Margaret River, Western Australia, Australia.