Nonstop flight route between St. Paul, Alberta, Canada and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from ZSP to FSI:
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- About this route
- ZSP Airport Information
- FSI Airport Information
- Facts about ZSP
- Facts about FSI
- Map of Nearest Airports to ZSP
- List of Nearest Airports to ZSP
- Map of Furthest Airports from ZSP
- List of Furthest Airports from ZSP
- 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 St. Paul Aerodrome (ZSP), St. Paul, Alberta, Canada and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,477 miles (or 2,377 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 St. Paul Aerodrome and Henry Post Army Airfield, the route shown on this map most likely still appears to be a straight line.
Departure Airport Information:
IATA / ICAO Codes: | ZSP / |
Airport Names: |
|
Location: | St. Paul, Alberta, Canada |
GPS Coordinates: | 53°59'36"N by 111°22'41"W |
Operator/Owner: | Town of St. Paul |
Airport Type: | Public |
Elevation: | 2148 feet (655 meters) |
# of Runways: | 1 |
View all routes: | Routes from ZSP |
More Information: | ZSP 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 St. Paul Aerodrome (ZSP):
- St. Paul Aerodrome (ZSP) currently has only 1 runway.
- The furthest airport from St. Paul Aerodrome (ZSP) is Tôlanaro Airport (FTU), which is located 10,147 miles (16,330 kilometers) away in Tôlanaro, Madagascar.
- The closest airport to St. Paul Aerodrome (ZSP) is Bonnyville Airport (YBY), which is located 34 miles (54 kilometers) NE of ZSP.
- In addition to being known as "St. Paul Aerodrome", another name for ZSP is "CEW3".
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 field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- 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 Fort Sill Army Radar Approach Control is the Army's Second busiest Air Traffic Control Facility, providing Radar Approach Control service to Henry Post Army Air Field, Lawton/Fort Sill Regional Airport, Duncan/Haliburton Airport and many smaller airports in the area.
- Post Field served as a base for flight training for the Air Service.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.