Nonstop flight route between Shemya, Alaska, United States and Cheyenne, Wyoming, United States:
Departure Airport:

Arrival Airport:

Distance from SYA to CYS:
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- About this route
- SYA Airport Information
- CYS Airport Information
- Facts about SYA
- Facts about CYS
- Map of Nearest Airports to SYA
- List of Nearest Airports to SYA
- Map of Furthest Airports from SYA
- List of Furthest Airports from SYA
- 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 Eareckson Air Station (SYA), Shemya, Alaska, United States and Cheyenne Regional Airport (CYS), Cheyenne, Wyoming, United States would travel a Great Circle distance of 3,699 miles (or 5,953 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 Eareckson Air Station 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 Eareckson Air Station 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: | SYA / PASY |
Airport Names: |
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Location: | Shemya, Alaska, United States |
GPS Coordinates: | 52°42'43"N by 174°6'48"E |
Operator/Owner: | U.S. Air Force |
Airport Type: | Military |
Elevation: | 97 feet (30 meters) |
# of Runways: | 1 |
View all routes: | Routes from SYA |
More Information: | SYA Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | CYS / KCYS |
Airport Names: |
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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 Eareckson Air Station (SYA):
- On 10 July 1943, eight B-25 Mitchells from the 77th Bombardment Squadron left Adak AAF and refueled at Alexai Point AAF on Attu.
- In addition to being known as "Eareckson Air Station", other names for SYA include "Shemya Air Force Base", "Shemya Army Airfield" and " ".
- By the end of 1944, several hundred American airmen had been interned by the Russians after their crippled aircraft landed on Petropavlovsk on the Kamchatka Peninsula.
- Because of Eareckson Air Station's relatively low elevation of 97 feet, planes can take off or land at Eareckson Air Station 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 base host squadron was re-designated the 5073rd Air Base Squadron on October 1962, and upgraded to a group on 15 October 1974 in recognition of the number and complexities of the tenant units it supported.
- On 28 May 1943, a small detachment of Alaskan Scouts began reconnaissance of Shemya, a small, flat, uninhabited island 35 miles to the east of Attu.
- The closest airport to Eareckson Air Station (SYA) is Casco Cove Coast Guard Station (ATU), which is located 40 miles (65 kilometers) WNW of SYA.
- With the exception of a small station housekeeping unit, Shemya was abandoned after the war.
- The furthest airport from Eareckson Air Station (SYA) is Cape Town International Airport (CPT), which is located 10,668 miles (17,168 kilometers) away in Cape Town, South Africa.
- Eareckson Air Station (SYA) currently has only 1 runway.
Facts about Cheyenne Regional Airport (CYS):
- 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.
- American Eagle, flying on behalf of American Airlines, started nonstop Embraer ERJ-145s to Dallas/Fort Worth, Texas on July 15, 2010 but ended them on April 3, 2012.
- During World War II the airport was a completion and modification center for B-17s.
- In addition to being known as "Cheyenne Regional Airport", another name for CYS is "Jerry Olson Field".
- 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.
- 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 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, also known as Jerry Olson Field, is a civil-military public airport one mile north of downtown Cheyenne, in Laramie County, Wyoming.