The official, speaking on condition of anonymity, told AFP on Tuesday that 12 A-10 ground-attack planes arrived at Incirlik over the weekend.
They have already been scheduled to help the US-led coalition fighting against Daesh (ISIL) terrorists in Iraq and Syria, the official added.
The official claimed that the deployment had "added capability" to the coalition's fight against ISIL.
Known by soldiers on the ground as "Warthogs," A-10 is a tactical military aircraft that has a primary role of carrying out airstrikes with greater precision than bombers.
The planes are heavily strengthened and designed to withstand direct hits from armor-piercing rounds.