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

Arrival Airport:

Distance from DIO to MTO:
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- About this route
- DIO Airport Information
- MTO Airport Information
- Facts about DIO
- Facts about 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
- Map of Nearest Airports to MTO
- List of Nearest Airports to MTO
- Map of Furthest Airports from MTO
- List of Furthest Airports from MTO
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Coles County Memorial Airport (MTO), Mattoon/Charleston, Illinois, 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 Diomede Heliport (FAA: DM2) and Coles County Memorial 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 Coles County Memorial 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: | 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 |
Facts about Diomede Heliport (FAA: DM2) (DIO):
- There is no hospital on the island and emergency services are limited due to the remoteness of the island.
- The first non-native to reach the Diomede Islands was a Russian explorer Semyon Dezhnev in 1648.
- According to Arthur Ahkinga, who lived on Little Diomede island at the turn of the 1940s, the Iñupiat on the island made their living by hunting and carving ivory which they traded or sold.
- 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.
- 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 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.
- The median income for a household in the city was $23,750, and the median income for a family was $24,583.
Facts about Coles County Memorial Airport (MTO):
- The airport covers 1,225 acres at an elevation of 722 feet.
- 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.
- 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.
- Coles County Memorial Airport (MTO) has 3 runways.
- 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.