The phrase "flies face of" does not have a direct antonym as it is not a commonly used/english phrase. However, "flies off," "flies away," or "flies out" are common antonyms of the phrase "flies face of." These antonyms suggest the action of something or someone leaving, going away, or being removed from a particular location or situation. Other related antonyms include "stays put," "settles down," or "remains in place," which suggest a lack of movement or change. The choice of the appropriate antonym depends on the context in which the phrase is used.