Nonstop flight route between Denis Island, Seychelles and Choibalsan, Mongolia:
Departure Airport:

Arrival Airport:

Distance from DEI to COQ:
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- About this route
- DEI Airport Information
- COQ Airport Information
- Facts about DEI
- Facts about COQ
- Map of Nearest Airports to DEI
- List of Nearest Airports to DEI
- Map of Furthest Airports from DEI
- List of Furthest Airports from DEI
- Map of Nearest Airports to COQ
- List of Nearest Airports to COQ
- Map of Furthest Airports from COQ
- List of Furthest Airports from COQ
About this route:
A direct, nonstop flight between Denis Island Airport (DEI), Denis Island, Seychelles and Choibalsan Airport (COQ), Choibalsan, Mongolia would travel a Great Circle distance of 5,038 miles (or 8,108 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 Denis Island Airport and Choibalsan 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 Denis Island Airport and Choibalsan Airport. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | COQ / ZMCD |
Airport Name: | Choibalsan Airport |
Location: | Choibalsan, Mongolia |
GPS Coordinates: | 48°8'8"N by 114°38'45"E |
Area Served: | Choibalsan, Mongolia |
Operator/Owner: | Civil Aviation Authority of Mongolia |
Airport Type: | Public / Military |
Elevation: | 2457 feet (749 meters) |
# of Runways: | 1 |
View all routes: | Routes from COQ |
More Information: | COQ Maps & Info |
Facts about Denis Island Airport (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.
- 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.
Facts about Choibalsan Airport (COQ):
- The furthest airport from Choibalsan Airport (COQ) is Puerto Deseado Airport (PUD), which is nearly antipodal to Choibalsan Airport (meaning Choibalsan Airport is almost on the exact opposite side of the Earth from Puerto Deseado Airport), and is located 12,399 miles (19,955 kilometers) away in Puerto Deseado, Santa Cruz Province, Argentina.
- The closest airport to Choibalsan Airport (COQ) is Hulunbuir Hailar Airport (HLD), which is located 248 miles (398 kilometers) ENE of COQ.
- Choibalsan Airport (COQ) currently has only 1 runway.
- Choibalsan Airport handled 6,200 passengers last year.