Nonstop flight route between Columbus, Ohio, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from CMH to DIO:
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- About this route
- CMH Airport Information
- DIO Airport Information
- Facts about CMH
- Facts about DIO
- Map of Nearest Airports to CMH
- List of Nearest Airports to CMH
- Map of Furthest Airports from CMH
- List of Furthest Airports from CMH
- 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 Port Columbus International Airport (CMH), Columbus, Ohio, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 3,633 miles (or 5,846 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 Port Columbus International 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 Port Columbus International 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: | CMH / KCMH |
Airport Name: | Port Columbus International Airport |
Location: | Columbus, Ohio, United States |
GPS Coordinates: | 39°59'53"N by 82°53'30"W |
Airport Type: | Public |
Elevation: | 815 feet (248 meters) |
# of Runways: | 2 |
View all routes: | Routes from CMH |
More Information: | CMH 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 Port Columbus International Airport (CMH):
- An American Airlines Convair CV-240 from Dayton International Airport was on approach to Runway 27 at 300 feet when the left side of the plane collided with a US Navy Beechcraft SNB-2C Navigator, also on approach.
- On April 25, 2004, a new 195-foot control tower directed its first aircraft, ushering in the beginning of several major facility enhancements to be constructed through 2025.
- The airport has its own police and fire departments
- The diagram on the February 1951 Coast & Geodetic Survey instrument-approach chart shows runways 006/186 3550 ft long, 052/232 4400 ft, 096/276 4500 ft, and 127/307 5030 ft.
- The closest airport to Port Columbus International Airport (CMH) is Ohio State University Airport (OSU), which is located only 11 miles (18 kilometers) WNW of CMH.
- The furthest airport from Port Columbus International Airport (CMH) is Margaret River Airport (MGV), which is located 11,361 miles (18,284 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Port Columbus International Airport's relatively low elevation of 815 feet, planes can take off or land at Port Columbus 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.
- Port Columbus International Airport (CMH) has 2 runways.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- In the early 1940s, one of the Little Diomede villagers wrote "No airplane comes to Diomede except for some very special reason, during the winter.
- The Little Diomede island is composed of Cretaceous age granite or quartz monzonite.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- 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.
- Funds for improving the water system have been requested both by the city and the school.
- As of the census of 2000, there were 146 people, 43 households, and 31 families residing in the city.
- The United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- 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.
- 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.