[UPDATE] The 2017 Quick Guide has now confirmed these dates! Preview Night is typically left off basically all event listings – so the real dates should still be July 19-23, 2017. [PREVIOUS] As first reported by An Englishman in San Diego, it’s entirely possible that we have San Diego Comic-Con 2017 dates. And it’s good news for those of you who (like us) prefer your conventions in late July, as all signs right now are pointing to July 19-23, 2017.