Nonstop flight route between Denis Island, Seychelles and Gary, Indiana (near Chicago), United States:
Departure Airport:

Arrival Airport:

Distance from DEI to GYY:
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- About this route
- DEI Airport Information
- GYY Airport Information
- Facts about DEI
- Facts about GYY
- 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 GYY
- List of Nearest Airports to GYY
- Map of Furthest Airports from GYY
- List of Furthest Airports from GYY
About this route:
A direct, nonstop flight between Denis Island Airport (DEI), Denis Island, Seychelles and Gary/Chicago International Airport (GYY), Gary, Indiana (near Chicago), United States would travel a Great Circle distance of 8,970 miles (or 14,435 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 Gary/Chicago International 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 Gary/Chicago International 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: | GYY / KGYY |
Airport Name: | Gary/Chicago International Airport |
Location: | Gary, Indiana (near Chicago), United States |
GPS Coordinates: | 41°36'59"N by 87°24'46"W |
Area Served: | Gary, Indiana |
Operator/Owner: | Gary/Chicago Airport Authority |
Airport Type: | Public |
Elevation: | 591 feet (180 meters) |
# of Runways: | 2 |
View all routes: | Routes from GYY |
More Information: | GYY Maps & Info |
Facts about Denis Island Airport (DEI):
- 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 closest airport to Denis Island Airport (DEI) is Bird Island Airport (BDI), which is located 32 miles (51 kilometers) W of 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.
- Denis Island Airport (DEI) currently has only 1 runway.
Facts about Gary/Chicago International Airport (GYY):
- Gary/Chicago International Airport (GYY) has 2 runways.
- For many years airplanes seen in the Chicago Air & Water Show have flown from here, including the {U.S.
- A long-standing proposal to turn the Gary/Chicago International Airport into Chicago's third major airport received a boost in early 2006 with the approval of $48 million in federal funding over the next ten years.
- The furthest airport from Gary/Chicago International Airport (GYY) is Margaret River Airport (MGV), which is located 11,103 miles (17,868 kilometers) away in Margaret River, Western Australia, Australia.
- The closest airport to Gary/Chicago International Airport (GYY) is Chicago Midway International Airport (MDW), which is located 21 miles (34 kilometers) NW of GYY.
- Expanding Gary/Chicago Airport is an alternative to constructing a new airport near Peotone, Illinois, 30 miles south of Chicago.
- Because of Gary/Chicago International Airport's relatively low elevation of 591 feet, planes can take off or land at Gary/Chicago International 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 airport is also home to an Army Aviation Support Facility supporting UH-60 Blackhawk helicopter operations of the Illinois Army National Guard as well as an additional collocated Army National Guard Armory supporting additional Illinois ARNG units and personnel.