KFSI is the ICAO code for Henry Post Army Air Field (IATA FSI), located in Fort Sill, OK.
Henry Post Army Air Field (KFSI) is a medium airport in Fort Sill, OK. Pilots and dispatchers reference it by ICAO code KFSI or IATA code FSI. It sits in North America.
Henry Post Army Air Field is a regional airport primarily serving general aviation, charter, and corporate flight departments. The 5,002-foot runway means it is well-suited as a dedicated bizjet field, free from airline scheduling pressure.
The longest runway measures 5,002 ft (1,525 m), a light-jet-class field. Representative aircraft that operate comfortably here include the Phenom 300, Citation CJ4, and Learjet 75. In practice this limits operations to light jets, turboprops, and short-field-capable aircraft.
Henry Post Army Air Field lies at 1,189 ft elevation.
Local operations run on America/Chicago. Without scheduled airline traffic, the field tends to be quieter and more flexible for charter and corporate operations — a useful characteristic for early morning, late night, or short-notice flights that would be impractical at a hub.
SkyAccess inventory for KFSI updates continuously as operators publish new empty legs and one-way repositioning trips. Pricing on each leg is available with a free account, and an inventory alert will email you the moment a leg appears on the route you care about.
Regional fields like KFSI are a meaningful share of US private aviation — closer to the trip's actual origin or destination than the nearest major hub, with shorter ramp-to-cabin times that are the main reason owners and brokers prefer them.
No current departing empty legs tracked. New legs appear here as operators post inventory — set an alert to be notified.
No current arriving empty legs tracked. New legs appear here as operators post inventory.