Nonstop flight route between Olga Bay, Kodiak Island Borough, Alaska, United States and Denis Island, Seychelles:
Departure Airport:

Arrival Airport:

Distance from KOY to DEI:
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- About this route
- KOY Airport Information
- DEI Airport Information
- Facts about KOY
- Facts about DEI
- Map of Nearest Airports to KOY
- List of Nearest Airports to KOY
- Map of Furthest Airports from KOY
- List of Furthest Airports from KOY
- Map of Nearest Airports to DEI
- List of Nearest Airports to DEI
- Map of Furthest Airports from DEI
- List of Furthest Airports from DEI
About this route:
A direct, nonstop flight between Olga Bay Seaplane Base (KOY), Olga Bay, Kodiak Island Borough, Alaska, United States and Denis Island Airport (DEI), Denis Island, Seychelles would travel a Great Circle distance of 8,405 miles (or 13,527 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 Olga Bay Seaplane Base and Denis Island 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 Olga Bay Seaplane Base and Denis Island Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | DEI / FSSD |
Airport Name: | Denis Island Airport |
Location: | Denis Island, Seychelles |
GPS Coordinates: | 3°48'1"S by 55°39'52"E |
Operator/Owner: | Denis Island |
Airport Type: | Private |
Elevation: | 10 feet (3 meters) |
# of Runways: | 1 |
View all routes: | Routes from DEI |
More Information: | DEI Maps & Info |
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.
- Olga Bay Seaplane Base has one seaplane landing area designated ALL/WAY with a water surface measuring 10,000 by 1,000 feet.
- 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.
Facts about Denis Island Airport (DEI):
- The furthest airport from Denis Island Airport (DEI) is Atuona Airport (AUQ), which is located 11,058 miles (17,797 kilometers) away in Atuona, Marquesas Islands, French Polynesia.
- The closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of DEI.
- Denis Island Airport (DEI) currently has only 1 runway.
- Because of Denis Island Airport's relatively low elevation of 10 feet, planes can take off or land at Denis Island 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.