Nonstop flight route between Fort Sill, Oklahoma, United States and Allentown, Pennsylvania, United States:
Departure Airport:

Arrival Airport:

Distance from FSI to ABE:
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- About this route
- FSI Airport Information
- ABE Airport Information
- Facts about FSI
- Facts about ABE
- 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 ABE
- List of Nearest Airports to ABE
- Map of Furthest Airports from ABE
- List of Furthest Airports from ABE
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Lehigh Valley International Airport (ABE), Allentown, Pennsylvania, United States would travel a Great Circle distance of 1,318 miles (or 2,122 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 Lehigh Valley International 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: | ABE / KABE |
Airport Name: | Lehigh Valley International Airport |
Location: | Allentown, Pennsylvania, United States |
GPS Coordinates: | 40°39'8"N by 75°26'25"W |
Area Served: | Lehigh Valley |
Airport Type: | Public |
Elevation: | 393 feet (120 meters) |
# of Runways: | 2 |
View all routes: | Routes from ABE |
More Information: | ABE Maps & Info |
Facts about Henry Post Army Airfield (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.
- The field was named in honor of pioneer aviator 2d Lieutenant Henry Post.
- 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.
- By the late 1920s, the World War I tarpaper buildings were rotting and turning into fire hazards.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- Post Field served as a base for flight training for the Air Service.
Facts about Lehigh Valley International Airport (ABE):
- Because of Lehigh Valley International Airport's relatively low elevation of 393 feet, planes can take off or land at Lehigh Valley International 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.
- Allentown PA Airport in the early 1930s before the addition of hard-surfaced runways.
- Lehigh Valley International Airport (ABE) has 2 runways.
- The closest airport to Lehigh Valley International Airport (ABE) is Quakertown Airport (UKT), which is located only 15 miles (25 kilometers) SSE of ABE.
- Lehigh Valley International Airport opened in 1929 and is one of the very few in the nation that serves its community from its original location.
- On September 19, 2008, Mesa Airlines Flight 7138, Bombardier CRJ700, was forced to make a high-speed aborted take off and swerve in order to avoid a collision with a Cessna 172 that had yet to exit the runway after landing.
- The furthest airport from Lehigh Valley International Airport (ABE) is Margaret River Airport (MGV), which is located 11,695 miles (18,821 kilometers) away in Margaret River, Western Australia, Australia.