Nonstop flight route between Cheyenne, Wyoming, United States and Georgetown, Ascension Island, Saint Helena:
Departure Airport:

Arrival Airport:

Distance from CYS to ASI:
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- About this route
- CYS Airport Information
- ASI Airport Information
- Facts about CYS
- Facts about ASI
- Map of Nearest Airports to CYS
- List of Nearest Airports to CYS
- Map of Furthest Airports from CYS
- List of Furthest Airports from CYS
- Map of Nearest Airports to ASI
- List of Nearest Airports to ASI
- Map of Furthest Airports from ASI
- List of Furthest Airports from ASI
About this route:
A direct, nonstop flight between Cheyenne Regional Airport (CYS), Cheyenne, Wyoming, United States and RAF Ascension (ASI), Georgetown, Ascension Island, Saint Helena would travel a Great Circle distance of 6,602 miles (or 10,624 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 Cheyenne Regional Airport and RAF Ascension, 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 Cheyenne Regional Airport and RAF Ascension. You'll see that it will travel the same route of the red line on this map!
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | ASI / FHAW |
Airport Names: |
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Location: | Georgetown, Ascension Island, Saint Helena |
GPS Coordinates: | 7°58'9"S by 14°23'38"W |
Operator/Owner: | Ministry of Defence |
View all routes: | Routes from ASI |
More Information: | ASI Maps & Info |
Facts about Cheyenne Regional Airport (CYS):
- The airport terminal contains plaques of the inductees into the Wyoming Aviation Hall of Fame.
- 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.
- 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.
- Cheyenne Regional Airport (CYS) has 2 runways.
- 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.
- Smaller airlines served Cheyenne, mainly to Denver, including Rocky Mountain Airways with de Havilland Canada DHC-6 Twin Otters and DHC-7 Dash 7s.
- Cheyenne's airport saw its first commercial passengers in the 1920s.
Facts about RAF Ascension (ASI):
- RAF Ascension Island is also the refuelling point for the Ministry of Defence's South Atlantic Air Bridge flights to RAF Mount Pleasant, on the Falkland Islands, from RAF Brize Norton in Oxfordshire, in the UK.
- The RAF presence on Ascension is backed up by United States Air Force personnel, who contribute a similar number of service personnel to ensure the effective running of the station, under the command of Captain Eduard Rodriguez, who is responsible to the RAF Station Commander.
- Wideawake Airfield was a US installation built in 1943 by arrangement with the British government.
- The furthest airport from RAF Ascension (ASI) is Ujae Airport (UJE), which is nearly antipodal to RAF Ascension (meaning RAF Ascension is almost on the exact opposite side of the Earth from Ujae Airport), and is located 12,370 miles (19,907 kilometers) away in Ujae Atoll, Marshall Islands.
- The closest airport to RAF Ascension (ASI) is Sasstown Airport (SAZ), which is located 965 miles (1,553 kilometers) NNE of ASI.
- In addition to being known as "RAF Ascension", another name for ASI is "Wideawake Airbase/Field".