The threat by Recep Tayyip Erdogan, made December 15 in an interview with A Haber TV, was the latest sign of worsening relations between Ankara and Washington.
Turkey’s Incirlik Air Base has been a strategic facility for U.S. and NATO forces for decades.
It wasn’t immediately clear how much Erdogan’s threat was bluster or a genuine signal of his intentions.
Ties between Turkey and the United States have worsened since an attempted coup in 2016, which Erdogan has blamed on a Turkish businessman living in exile in the United States.
Relations worsened further when Erdogan said he would move to buy an advanced S-400 missile system from Russia. Washington has said the system poses a threat to U.S. F-35 jets that use Incirlik.
And the move by Turkish armed forces to enter Syria in October, targeting U.S.-allied Kurdish forces there, has prompted vocal opposition from both Republicans and Democrats in Congress.
Last week, a U.S. Senate committee backed legislation to impose sanctions on Turkey for the S-400 missiles, and other things.
U.S. President Donald Trump’s criticism of Erdogan has been largely muted, to the dismay of many U.S. lawmakers.