Horror Nights 2024 Theme Park.  — the 2024 halloween horror nights season is universal orlando's longest yet, running on select nights from august 30 through november 3. This year, hhn at universal studios hollywood will run on select nights from september 5 to november 3.

 — a couple weeks ago, we ventured into the hot sun of southern california at universal studios hollywood to take a behind the scenes tour of two houses at this.  — universal reveals first halloween horror nights house of 2024.