Nonstop flight route between Denis Island, Seychelles and Cheyenne, Wyoming, United States:
Departure Airport:

Arrival Airport:

Distance from DEI to CYS:
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- About this route
- DEI Airport Information
- CYS Airport Information
- Facts about DEI
- Facts about CYS
- 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 CYS
- List of Nearest Airports to CYS
- Map of Furthest Airports from CYS
- List of Furthest Airports from CYS
About this route:
A direct, nonstop flight between Denis Island Airport (DEI), Denis Island, Seychelles and Cheyenne Regional Airport (CYS), Cheyenne, Wyoming, United States would travel a Great Circle distance of 9,586 miles (or 15,427 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 Cheyenne 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 Denis Island Airport and Cheyenne 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: | 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: | CYS / KCYS |
Airport Names: |
|
Location: | Cheyenne, Wyoming, United States |
GPS Coordinates: | 41°9'20"N by 104°48'38"W |
Area Served: | Cheyenne, Wyoming |
Operator/Owner: | Cheyenne Regional Airport Board |
Airport Type: | Public |
Elevation: | 6159 feet (1,877 meters) |
# of Runways: | 2 |
View all routes: | Routes from CYS |
More Information: | CYS 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 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.
- 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 Cheyenne Regional Airport (CYS):
- The closest airport to Cheyenne Regional Airport (CYS) is Francis E. Warren Air Force Base (FEW), which is located only 3 miles (5 kilometers) WSW of CYS.
- Because of Cheyenne Regional Airport's high elevation of 6,159 feet, planes must typically fly at a faster airspeed in order to takeoff or land at CYS. Combined with a high temperature, this could make CYS a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.
- The Boeing/United Airlines Terminal Building, Hangar and Fountain, built for what would become United Airlines between 1929 and 1934, are listed on the National Register of Historic Places.
- In addition to being known as "Cheyenne Regional Airport", another name for CYS is "Jerry Olson Field".
- The furthest airport from Cheyenne Regional Airport (CYS) is Sir Gaëtan Duval Airport (RRG), which is located 10,803 miles (17,385 kilometers) away in Rodrigues Island, Mauritius.
- Cheyenne Regional Airport (CYS) has 2 runways.
- Smaller airlines served Cheyenne, mainly to Denver, including Rocky Mountain Airways with de Havilland Canada DHC-6 Twin Otters and DHC-7 Dash 7s.
- Great Lakes Airlines flies 19-passenger Beechcraft 1900Ds to Cheyenne.
- During World War II the airport was a completion and modification center for B-17s.