Ontario Halloween & Things to Do 2025
Your complete guide to the best halloween in Ontario and surrounding areas
Ontario lights up Halloween 2025 across the main district and airport-adjacent neighborhoods with ghostly tours and frightful events. Plan to see spooky happenings, fall entertainment and Halloween gatherings including haunted houses, family festivals and pumpkin displays.
Find the best Ontario Halloween happenings this year!
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Family-Friendly Fall Activities
44 eventsExclusive after-hours Halloween party with character meet-and-greets and treat trails.
Haunted Experiences
20 eventsWalkthrough experience based on H. H. Holmes' Murder Castle
Halloween Food, Drink, and Parties
13 events18+ Halloween costume party with 'Dead Dance' theme
Halloween Movies, Theater, and Entertainment
5 eventsHalloween classics performed by candlelight
Halloween Activities
18 eventsInland Empire's premier horror fan convention.
Editor's Picks (6)
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Oogie Boogie Bash – A Disney Halloween Party
(Anaheim)
Exclusive after-hours Halloween party with character meet-and-greets and treat trails.
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Anaheim Fall Festival and Halloween Parade
(Anaheim)
Revived Classic Car Show and parade float scavenger hunt
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CHS Haunt: Murder Castle
Walkthrough experience based on H. H. Holmes' Murder Castle
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Castle Dark
(Riverside)
Three new haunting mazes and 'Haunted Highway' overlay.
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City of Chino Hills Trick or Treat
(Chino Hills)
Community trick-or-treat with costume contest
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The Haunted Harvest
(Chino)
6 haunted houses within a 2-acre corn maze
Ontario Halloween Events Map
See every Halloween event, haunted attraction, and pumpkin patch on one map.
