Nonstop flight route between Kalispell, Montana, United States and Fort Sill, Oklahoma, United States:
Departure Airport:

Arrival Airport:

Distance from FCA to FSI:
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- About this route
- FCA Airport Information
- FSI Airport Information
- Facts about FCA
- Facts about FSI
- Map of Nearest Airports to FCA
- List of Nearest Airports to FCA
- Map of Furthest Airports from FCA
- List of Furthest Airports from FCA
- 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 Glacier Park International Airport (FCA), Kalispell, Montana, United States and Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States would travel a Great Circle distance of 1,246 miles (or 2,005 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 Glacier Park International Airport 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: | FCA / KGPI |
Airport Names: |
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Location: | Kalispell, Montana, United States |
GPS Coordinates: | 48°18'38"N by 114°15'21"W |
Area Served: | Kalispell, Montana |
Operator/Owner: | Flathead Municipal Airport Authority |
Airport Type: | Public |
Elevation: | 2977 feet (907 meters) |
# of Runways: | 2 |
View all routes: | Routes from FCA |
More Information: | FCA 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 Glacier Park International Airport (FCA):
- The furthest airport from Glacier Park International Airport (FCA) is Tôlanaro Airport (FTU), which is located 10,533 miles (16,951 kilometers) away in Tôlanaro, Madagascar.
- Glacier Park International Airport handled 355,928 passengers last year.
- The closest airport to Glacier Park International Airport (FCA) is Pincher Creek Airport (WPC), which is located 84 miles (136 kilometers) N of FCA.
- Glacier International was announced by the FAA as one of the control towers losing funding March 22, 2012 leaving arrivals and departures to pilot control and communication.
- In addition to being known as "Glacier Park International Airport", another name for FCA is "GPI".
- United Express has summer Canadair CRJ-700 nonstops to Chicago, and nonstop to Denver year round on CRJ-200s and CRJ-700s.
- Glacier Park International Airport (FCA) has 2 runways.
Facts about Henry Post Army Airfield (FSI):
- 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.
- 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 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.
- Post Field served as a base for flight training for the Air Service.
- There are no air units currently stationed at the airfield, however air operations for transient units are provided by permanent party personnel.
- 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.
- 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.
- Henry Post AAF has one runway designated 17/35 with a concrete surface measuring 5,001 by 200 feet.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.