Nonstop flight route between Fort Sill, Oklahoma, United States and Parry Sound, Ontario, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YPD:
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- About this route
- FSI Airport Information
- YPD Airport Information
- Facts about FSI
- Facts about YPD
- Map of Nearest Airports to FSI
- List of Nearest Airports to FSI
- Map of Furthest Airports from FSI
- List of Furthest Airports from FSI
- Map of Nearest Airports to YPD
- List of Nearest Airports to YPD
- Map of Furthest Airports from YPD
- List of Furthest Airports from YPD
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Parry Sound Area Municipal Airport (YPD), Parry Sound, Ontario, Canada would travel a Great Circle distance of 1,222 miles (or 1,966 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 relatively short distance between Henry Post Army Airfield and Parry Sound Area Municipal Airport, the route shown on this map most likely still appears to be a straight line.
Departure 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 |
Arrival Airport Information:
IATA / ICAO Codes: | YPD / |
Airport Names: |
|
Location: | Parry Sound, Ontario, Canada |
GPS Coordinates: | 45°15'14"N by 79°49'40"W |
Area Served: | Parry Sound, Ontario, Canada |
Operator/Owner: | Municipally owned |
Airport Type: | Public |
Elevation: | 830 feet (253 meters) |
# of Runways: | 1 |
View all routes: | Routes from YPD |
More Information: | YPD Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- With the end of World War I, in October 1919 Post Field was deactivated as an active duty airfield in accordance with sharply reduced military budgets, and a small caretaker unit was assigned to the facility for administrative reasons to support the balloon school/company.
- 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.
Facts about Parry Sound Area Municipal Airport (YPD):
- Parry Sound Area Municipal Airport (YPD) currently has only 1 runway.
- The furthest airport from Parry Sound Area Municipal Airport (YPD) is Margaret River Airport (MGV), which is located 11,325 miles (18,226 kilometers) away in Margaret River, Western Australia, Australia.
- Because of Parry Sound Area Municipal Airport's relatively low elevation of 830 feet, planes can take off or land at Parry Sound Area Municipal 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.
- In addition to being known as "Parry Sound Area Municipal Airport", another name for YPD is "CNK4".
- The closest airport to Parry Sound Area Municipal Airport (YPD) is Parry Sound/Frying Pan Island-Sans Souci Water Aerodrome (YSI), which is located only 16 miles (26 kilometers) WSW of YPD.