Universal Hollywood Horror Nights 2024 Dates. This year, halloween horror nights will run select nights from august 30th through. Like the undead, halloween horror nights (affectionately nicknamed hhn) rises again!

Halloween horror nights starts earlier than ever on august 30 and runs every wednesday through sunday till november 3, 2024. We break down everything you can expect for the 2024 halloween horror nights event including the haunted houses, rides, tickets and more!