Knox County Airport, located in Mount Vernon, OH.
Knox County Airport (K4I3) is a small airport in Mount Vernon, OH. It sits in North America.
Knox County Airport serves general aviation operators in its area.
The longest runway measures 5,504 ft (1,678 m), a midsize and super-midsize-class field. Representative aircraft that operate comfortably here include the Citation Longitude, Challenger 350, and Gulfstream G280. In practice this comfortable for most midsize and super-mid charter equipment.
Knox County Airport lies at 1,191 ft elevation.
Local operations run on America/New_York. 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 K4I3 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.
Use this page to compare K4I3 against nearby alternatives, browse live empty-leg pricing in both directions, and brief yourself on the runway and elevation profile before you book.
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.