Halloween Conventions 2024. With 50,000 guests at the long beach convention center, this year's midsummer scream event was the biggest the halloween convention has ever seen. The mesmerizing spectacle that will leave you on the edge of your seat is back for ghosts of summer 2024!

A list of 2024 worldwide horror conventions from the biggest convention database as found on fancons.com. Cassandra is fri and sat only.