Nonstop flight route between Carbondale/Murphysboro, Illinois, United States and Olga Bay, Kodiak Island Borough, Alaska, United States:
Departure Airport:

Arrival Airport:

Distance from MDH to KOY:
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- About this route
- MDH Airport Information
- KOY Airport Information
- Facts about MDH
- Facts about KOY
- Map of Nearest Airports to MDH
- List of Nearest Airports to MDH
- Map of Furthest Airports from MDH
- List of Furthest Airports from MDH
- Map of Nearest Airports to KOY
- List of Nearest Airports to KOY
- Map of Furthest Airports from KOY
- List of Furthest Airports from KOY
About this route:
A direct, nonstop flight between Southern Illinois Airport (MDH), Carbondale/Murphysboro, Illinois, United States and Olga Bay Seaplane Base (KOY), Olga Bay, Kodiak Island Borough, Alaska, United States would travel a Great Circle distance of 3,171 miles (or 5,103 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 Southern Illinois Airport and Olga Bay Seaplane Base, 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 Southern Illinois Airport and Olga Bay Seaplane Base. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | MDH / KMDH |
Airport Name: | Southern Illinois Airport |
Location: | Carbondale/Murphysboro, Illinois, United States |
GPS Coordinates: | 37°46'41"N by 89°15'6"W |
Area Served: | Carbondale / Murphysboro, Illinois |
Airport Type: | Public |
Elevation: | 411 feet (125 meters) |
# of Runways: | 3 |
View all routes: | Routes from MDH |
More Information: | MDH Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | KOY / |
Airport Name: | Olga Bay Seaplane Base |
Location: | Olga Bay, Kodiak Island Borough, Alaska, United States |
GPS Coordinates: | 57°9'41"N by 154°13'46"W |
Area Served: | Olga Bay, Alaska |
Operator/Owner: | Alaska Packers Association |
Airport Type: | Public |
Elevation: | 0 feet (0 meters) |
# of Runways: | 1 |
View all routes: | Routes from KOY |
More Information: | KOY Maps & Info |
Facts about Southern Illinois Airport (MDH):
- Southern Illinois Airport (MDH) has 3 runways.
- Because of Southern Illinois Airport's relatively low elevation of 411 feet, planes can take off or land at Southern Illinois 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 Southern Illinois Airport (MDH) is Margaret River Airport (MGV), which is located 11,052 miles (17,786 kilometers) away in Margaret River, Western Australia, Australia.
- Southern Illinois Airport makes a substantial contribution to the local economy.
- Southern Illinois Airport covers an area of 850 acres at an elevation of 411 feet above mean sea level.
- The closest airport to Southern Illinois Airport (MDH) is Williamson County Regional Airport (MWA), which is located only 13 miles (21 kilometers) E of MDH.
- The airport opened in 1950 and was originally known as Murdale Airport.
- The airport is owned and operated by Southern Illinois Airport Authority, a local governmental entity created under state law.
Facts about Olga Bay Seaplane Base (KOY):
- Because of Olga Bay Seaplane Base's relatively low elevation of 0 feet, planes can take off or land at Olga Bay Seaplane Base 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.
- Olga Bay Seaplane Base (KOY) currently has only 1 runway.
- The closest airport to Olga Bay Seaplane Base (KOY) is Moser Bay Seaplane Base (KMY), which is located only 10 miles (16 kilometers) SSE of KOY.
- The furthest airport from Olga Bay Seaplane Base (KOY) is Port Elizabeth International Airport (PLZ), which is located 10,835 miles (17,438 kilometers) away in Port Elizabeth, South Africa.
- Scheduled passenger service to Kodiak, Alaska, is subsidized by the United States Department of Transportation via the Essential Air Service program.