Nonstop flight route between Mayo, Yukon, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from YMA to FSI:
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- About this route
- YMA Airport Information
- FSI Airport Information
- Facts about YMA
- Facts about FSI
- Map of Nearest Airports to YMA
- List of Nearest Airports to YMA
- Map of Furthest Airports from YMA
- List of Furthest Airports from YMA
- 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 Mayo Airport (YMA), Mayo, Yukon, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 2,551 miles (or 4,105 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 Mayo Airport 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 Mayo Airport 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: | YMA / CYMA |
Airport Name: | Mayo Airport |
Location: | Mayo, Yukon, Canada |
GPS Coordinates: | 63°37'0"N by 135°52'8"W |
Operator/Owner: | Government of Yukon |
Airport Type: | Public |
Elevation: | 1653 feet (504 meters) |
# of Runways: | 1 |
View all routes: | Routes from YMA |
More Information: | YMA 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 Mayo Airport (YMA):
- Mayo Airport (YMA) currently has only 1 runway.
- The furthest airport from Mayo Airport (YMA) is Port Elizabeth International Airport (PLZ), which is located 10,241 miles (16,482 kilometers) away in Port Elizabeth, South Africa.
- The closest airport to Mayo Airport (YMA) is Dawson City Airport (YDA), which is located 104 miles (167 kilometers) WNW of YMA.
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- Post Field served as a base for flight training for the Air Service.
- In 1940 the Artillery decided that the Air Corps had outgrown such mundane chores as artillery spotting, and it was decided that it would take care of itself with its own observation aircraft.
- After returning from combat duty in France, a cadre of the 135th Aero Squadron ) was assigned to Post Field as an observation squadron, supplying aircraft for the United States Army Field Artillery School at Fort Sill and supported Army units at Fort Leavenworth, Kansas.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- The first Army aviation at Fort Sill began on 26 July 1915 when eight Curtiss JN-3 airplanes of the 1st Aero Squadron arrived from Rockwell Field, California.