Nonstop flight route between Fort Sill, Oklahoma, United States and San Luis Potosí, San Luis Potosí, México:
Departure Airport:

Arrival Airport:

Distance from FSI to SLP:
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- About this route
- FSI Airport Information
- SLP Airport Information
- Facts about FSI
- Facts about SLP
- 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 SLP
- List of Nearest Airports to SLP
- Map of Furthest Airports from SLP
- List of Furthest Airports from SLP
About this route:
A direct, nonstop flight between Henry Post Army Airfield (FSI), Fort Sill, Oklahoma, United States and Ponciano Arriaga International Airport (SLP), San Luis Potosí, San Luis Potosí, México would travel a Great Circle distance of 870 miles (or 1,400 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 Ponciano Arriaga 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: | SLP / MMSP |
Airport Name: | Ponciano Arriaga International Airport |
Location: | San Luis Potosí, San Luis Potosí, México |
GPS Coordinates: | 22°15'15"N by 100°55'50"W |
Operator/Owner: | Grupo Aeroportuario Centro Norte |
Airport Type: | Public |
Elevation: | 6035 feet (1,839 meters) |
# of Runways: | 2 |
View all routes: | Routes from SLP |
More Information: | SLP Maps & Info |
Facts about Henry Post Army Airfield (FSI):
- As a result of the United State's entry into World War I, Fort Sill was selected for a primary pilot school.
- 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.
- Henry Post Army Airfield (FSI) currently has only 1 runway.
- 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.
- Fort Sill has embarked on a new plan to support the museum in providing a more dynamic learning experience for the 200,000 military and civilian personnel who visit each year.
- 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 Ponciano Arriaga International Airport (SLP):
- Ponciano Arriaga International Airport (SLP) has 2 runways.
- The closest airport to Ponciano Arriaga International Airport (SLP) is Guanajuato International Airport (BJX), which is located 94 miles (151 kilometers) SSW of SLP.
- The furthest airport from Ponciano Arriaga International Airport (SLP) is Sir Gaëtan Duval Airport (RRG), which is located 11,410 miles (18,362 kilometers) away in Rodrigues Island, Mauritius.
- Because of Ponciano Arriaga International Airport's high elevation of 6,035 feet, planes must typically fly at a faster airspeed in order to takeoff or land at SLP. Combined with a high temperature, this could make SLP a "Hot & High" airport, where the air density is lower than it would otherwise be at sea level.