KarLsto; Swedish: Karelens flygflottilj) is the peace-time Finnish Air Force unit responsible for the protection of the airspace of Eastern and South-Eastern Finland.

In spite of its name, the headquarters of the air wing is not located in the Finnish historical province of Karelia, but in historical Savonia and the present-day province of Northern Savonia, at Kuopio Airport in Siilinjärvi.

The unit has about 600 personnel, of whom 450 are commissioned officers, NCOs and professional enlisted men and the other 150 are conscripts.

The unit was moved to Rissala after the wars, and the fighter wing was divided between Flying Regiments 2 and 3.

During Peace-time, its main duty is to guard its assigned air space, and if needed, to prevent unpermitted use of it.