Sitting next to Turkish counterpart Recep Tayyip Erdogan after landing in Ankara for a NATO summit, Trump said, "That's a decision we're going to make... it's a great plane, the best plane by far and it's certainly something we will consider."
The US had imposed sanctions on Turkey in 2020 over Ankara's purchase of Russian defense missiles.
Turkey has long sought to resolve the question of its readmittance to the F35 programme and the lifting of US sanctions that have soured ties and hampered Turkish defence projects, and has looked to Trump's visit to break the deadlock.
When the pair met at the White House last September, both leaders expressed a desire to draw a line under the matter, although lifting the sanctions is a congressional decision.
Asked if he would lift the CAATSA sanctions, Trump said: "We're going to be taking the sanctions off."
