Halloween Horror Nights 2024 Hollywood Dates. Halloween horror nights at universal studios hollywood runs on select nights from september 7th through october 31st of 2023. It’s never too early to start panicking for the nation’s premier halloween event:
We break down everything you can expect for the 2024 halloween horror nights event including the haunted houses, rides, tickets and more! Halloween horror nights dates are here, and you can save on halloween horror nights tickets from undercover tourist!