Nonstop flight route between Fort Sill, Oklahoma, United States and Charlottetown, Prince Edward Island, Canada:
Departure Airport:

Arrival Airport:

Distance from FSI to YYG:
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- About this route
- FSI Airport Information
- YYG Airport Information
- Facts about FSI
- Facts about YYG
- 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 YYG
- List of Nearest Airports to YYG
- Map of Furthest Airports from YYG
- List of Furthest Airports from YYG
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Charlottetown Airport (YYG), Charlottetown, Prince Edward Island, Canada would travel a Great Circle distance of 2,000 miles (or 3,219 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 Charlottetown 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: | YYG / CYYG |
Airport Name: | Charlottetown Airport |
Location: | Charlottetown, Prince Edward Island, Canada |
GPS Coordinates: | 46°17'21"N by 63°7'9"W |
Area Served: | Charlottetown, Prince Edward Island |
Operator/Owner: | Transport Canada |
Airport Type: | Public |
Elevation: | 159 feet (48 meters) |
# of Runways: | 2 |
View all routes: | Routes from YYG |
More Information: | YYG Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- The Army will continue to operate and maintain a precision approach radar at Fort Sill's Henry Post Field for the foreseeable future.
- Although the Signal corps had been supplying Observation aircraft for the United States Army Field Artillery School since 1915.
- 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.
- 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.
- Air Service/Corps units assigned to Post Field between 1919 and 1941
- 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.
Facts about Charlottetown Airport (YYG):
- Throughout this time, Upton Airport received the first air mail service in Canada.
- In 2008, the airport set an all-time passenger record with 282,385 passengers using the airport, a near 80% increase over 2002.
- Following the end of World War II, the military presence at the airport diminished by late 1945 and the base was decommissioned and transferred from the RCAF to the federal Department of Transport on February 1, 1946, returning the airfield to civilian use.
- The closest airport to Charlottetown Airport (YYG) is Summerside Airport (YSU), which is located 36 miles (57 kilometers) WNW of YYG.
- Several expansions were subsequently undertaken, including an enlarged civilian air terminal off the Brackley Point Road on the west side of the airfield, as well as a lengthening and realigning of what would become runway 03/21 during the 1960s-1970s to accommodate jet aircraft.
- Charlottetown Airport (YYG) has 2 runways.
- The furthest airport from Charlottetown Airport (YYG) is Albany Airport (ALH), which is located 11,651 miles (18,751 kilometers) away in Albany, Western Australia, Australia.
- Because of Charlottetown Airport's relatively low elevation of 159 feet, planes can take off or land at Charlottetown 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.