Sliač Air Base (IATA: SLD, ICAO: LZSL) or, historically, Letisko Tri Duby (literally, "The Three Oaks Airport") is a military airport in central Slovakia situated between the towns of Zvolen and Banská Bystrica and near the spa town of Sliač. The airport has one runway, which is 2,400 m long (18/36). The airport has been used only by the military since October 2021, when it was closed to all civilian traffic. In 2022, the airport operator company Letisko Slia a.s. went into liquidation, and all airport equipment was sold.
Sliac International Airport is situated in the middle of Slovakia. The size of the runway, the resistance of the surface,