Speculation had said the newly constructed, $70m Istanbul circuit was running late.
"I don't see any problems at all," F1's commercial rights holder told a news conference.
Ecclestone, 74, also denied reports that the F1 facility had blown out its budget and was being ripped off by the sport.
He smiled: "(Turkey has) got the best deal in Formula One. We didn't come here for the money, we came here to embrace Turkey into Europe."