Nonstop flight route between Mattoon/Charleston, Illinois, United States and Diomede, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from MTO to DIO:
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- About this route
- MTO Airport Information
- DIO Airport Information
- Facts about MTO
- Facts about DIO
- Map of Nearest Airports to MTO
- List of Nearest Airports to MTO
- Map of Furthest Airports from MTO
- List of Furthest Airports from MTO
- 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 Coles County Memorial Airport (MTO), Mattoon/Charleston, Illinois, United States and Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States would travel a Great Circle distance of 3,515 miles (or 5,656 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 Coles County Memorial 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 Coles County Memorial 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: | MTO / KMTO |
Airport Name: | Coles County Memorial Airport |
Location: | Mattoon/Charleston, Illinois, United States |
GPS Coordinates: | 39°28'41"N by 88°16'45"W |
Area Served: | Mattoon/Charleston, Illinois |
Operator/Owner: | Coles County Airport Authority |
Airport Type: | Public |
Elevation: | 722 feet (220 meters) |
# of Runways: | 3 |
View all routes: | Routes from MTO |
More Information: | MTO 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 Coles County Memorial Airport (MTO):
- The closest airport to Coles County Memorial Airport (MTO) is University of Illinois Willard Airport (CMI), which is located 39 miles (62 kilometers) N of MTO.
- Because of Coles County Memorial Airport's relatively low elevation of 722 feet, planes can take off or land at Coles County Memorial 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.
- Coles County Memorial Airport (MTO) has 3 runways.
- The furthest airport from Coles County Memorial Airport (MTO) is Margaret River Airport (MGV), which is located 11,091 miles (17,849 kilometers) away in Margaret River, Western Australia, Australia.
Facts about Diomede Heliport (FAA: DM2) (DIO):
- While other emergency services are provided by volunteers and a health aide, the fire and rescue service is provided by Diomede Volunteer Fire Department and First Responders.
- 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.
- During the Nome gold rush at the turn of the 19th century, Diomede villagers traveled to Nome along with the gold seekers, even though Nome was not a native village.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- An electric system was built on the island in the 1970s and electricity is provided by city-operated Diomede Joint Utilities.
- 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.