Nonstop flight route between Chersky, Yakutia, Russia and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from CYX to FSI:
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- About this route
- CYX Airport Information
- FSI Airport Information
- Facts about CYX
- Facts about FSI
- Map of Nearest Airports to CYX
- List of Nearest Airports to CYX
- Map of Furthest Airports from CYX
- List of Furthest Airports from CYX
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
About this route:
A direct, nonstop flight between Chersky (CYX), Chersky, Yakutia, Russia and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 4,251 miles (or 6,841 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 Chersky and Henry Post Army Airfield, 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 Chersky and Henry Post Army Airfield. You'll see that it will travel the same route of the red line on this map!
Departure Airport Information:
IATA / ICAO Codes: | CYX / UESS |
Airport Name: | Chersky |
Location: | Chersky, Yakutia, Russia |
GPS Coordinates: | 68°44'35"N by 161°20'12"E |
Airport Type: | Public |
Elevation: | 20 feet (6 meters) |
# of Runways: | 1 |
View all routes: | Routes from CYX |
More Information: | CYX Maps & Info |
Arrival Airport Information:
IATA / ICAO Codes: | FSI / KFSI |
Airport Name: | Henry Post Army Airfield |
Location: | Fort Sill, Oklahoma, United States |
GPS Coordinates: | 34°38'58"N by 98°24'7"W |
Operator/Owner: | U.S. Army ATCA-ASO |
Airport Type: | Military |
Elevation: | 1189 feet (362 meters) |
# of Runways: | 1 |
View all routes: | Routes from FSI |
More Information: | FSI Maps & Info |
Facts about Chersky (CYX):
- Because of Chersky's relatively low elevation of 20 feet, planes can take off or land at Chersky 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.
- Chersky (CYX) currently has only 1 runway.
- The furthest airport from Chersky (CYX) is Teniente Rodolfo Marsh Airport (TNM), which is located 11,222 miles (18,060 kilometers) away in Villa Las Estrellas, Antarctica.
- The closest airport to Chersky (CYX) is Srednekolymsk Airport (SEK), which is located 214 miles (345 kilometers) WSW of CYX.
Facts about Henry Post Army Airfield (FSI):
- The furthest airport from Henry Post Army Airfield (FSI) is Sir Gaëtan Duval Airport (RRG), which is located 10,920 miles (17,575 kilometers) away in Rodrigues Island, Mauritius.
- The closest airport to Henry Post Army Airfield (FSI) is Lawton–Fort Sill Regional Airport (LAW), which is located only 6 miles (9 kilometers) S of FSI.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.