Ontario Halloween Events

Crazy, Scary Spooky, Hilarious (Halloween Party)

Mix Champagne Lounge 24 Oct 2025

Hocus Pocus Drag Brunch

Ontario Improv Comedy Club 5 Oct 2025

Lavell Crawford at Ontario Improv Comedy Club

Ontario Improv Comedy Club 31 Oct 2025

Spooky Szn Treasure Hunt

1010 E Mission Blvd, Ontario, CA, United States, California 91761 11 Oct 2025

Levitating Dua Lipa and Women of Pop show at City of Ontario Trunk or Treat Oct 24th

2455 E Riverside Dr, Ontario, CA 91761, United States 24 Oct 2025

🎃👻 FREEky Friday: Family Halloween Party at Big Al’s! 👻🎃

4120 E. 4th St., Ontario, CA, United States, California 91764 31 Oct 2025

Lavell Crawford

Ontario Improv 30 Oct 2025

Paint n Sip at THE CHOCOLATE BAR ONTARIO

The Chocolate Bar Ontario 19 Oct 2025