to what extent does Oedipus's tragedy happen due to his tragic flaw?

Oedipus' tragic flaw definitely played a part in his downfall. In all actuality, Oedipus was used by Aristotle as the perfect example of a tragic hero. He had "hubris" which is the pride which blinds one to the truth. He refused to listen to men such as Teiresias who predicted that he was the one who had killed Laius. He experienced "recognition" which was the moment when he realized that he was the one for whom he was searching. He also experienced "reversal" at the same moment which makes him the perfect hero with a tragic flaw which ultimately caused his downfall.