The last stage of Russia's deliveries of S-400 air defense systems to Turkey is expected to be completed in November-December.
Turkish President Recep Tayyip Erdogan told reporters on his way back from Azerbaijan.
Russia started S-400 deliveries to Turkey in July.
The second stage of the deliveries have been completed in September.
The S-400 will be fully operational in April 2020.
The Turkish President also did not exclude buying Russian fighters to replace the American F-35. Earlier, the Turkish leader saw them at the MAKS 2019 air show.
According to Kremlin aide Yury Ushakov, Ankara is interested in Russian fighter jets, but specific talks on the "sensitive matter" are not currently on the agenda.
GSV "Russia - Islamic World"
Photo: Виталий Невар/ТАСС