Nonstop flight route between Diomede, Alaska, United States and Marion, Illinois, United States:
Departure Airport:

Arrival Airport:

Distance from DIO to MWA:
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- About this route
- DIO Airport Information
- MWA Airport Information
- Facts about DIO
- Facts about MWA
- 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 MWA
- List of Nearest Airports to MWA
- Map of Furthest Airports from MWA
- List of Furthest Airports from MWA
About this route:
A direct, nonstop flight between Diomede Heliport (FAA: DM2) (DIO), Diomede, Alaska, United States and Williamson County Regional Airport (MWA), Marion, Illinois, United States would travel a Great Circle distance of 3,596 miles (or 5,787 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 Williamson County Regional 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 Williamson County Regional 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: | MWA / KMWA |
Airport Name: | Williamson County Regional Airport |
Location: | Marion, Illinois, United States |
GPS Coordinates: | 37°45'18"N by 89°0'39"W |
Area Served: | Marion, Illinois |
Operator/Owner: | Williamson County Airport Authority |
Airport Type: | Public |
Elevation: | 472 feet (144 meters) |
# of Runways: | 2 |
View all routes: | Routes from MWA |
More Information: | MWA Maps & Info |
Facts about Diomede Heliport (FAA: DM2) (DIO):
- Water for winter use is drawn from a mountain spring, then treated and stored in 434,000-U.S.-gallon storage tanks.
- The United States purchased Alaska from Russia in 1867 which included the Little Diomede.
- 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 city levies a 3% sales tax, but there are no property taxes on the island.
- The closest airport to Diomede Heliport (FAA: DM2) (DIO) is Wales Airport (WAA), which is located 26 miles (42 kilometers) ESE of DIO.
- The location of the city is believed to have been used for at least 3,000 years as a hunting campsite.
- 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.
- During the centuries, the village on Little Diomede was gradually inhabited as a permanent settlement and the entire island was incorporated into the city of Diomede in 1970.
- 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.
- 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 Williamson County Regional Airport (MWA):
- The closest airport to Williamson County Regional Airport (MWA) is Southern Illinois Airport (MDH), which is located only 13 miles (21 kilometers) W of MWA.
- The airport covers 1,300 acres at an elevation of 472 feet.
- Because of Williamson County Regional Airport's relatively low elevation of 472 feet, planes can take off or land at Williamson County Regional 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.
- On November 6, 2006 Mesa Airlines announced that new service to Chicago Midway International Airport would begin in February 2007 operated by subsidiary Air Midwest, with service to Decatur Airport in Decatur, Illinois, and continuing to Chicago Midway International Airport direct.
- The furthest airport from Williamson County Regional Airport (MWA) is Margaret River Airport (MGV), which is located 11,065 miles (17,807 kilometers) away in Margaret River, Western Australia, Australia.
- Williamson County Regional Airport (MWA) has 2 runways.