Conventions in O'fallon, IL
Search for something you love or check out popular events in your area.
1 filter applied
Convention
Date
Neighborhood
Category
Price
Language
Currency
1 filter applied
Convention
WrestleBreed at SICW FanFest 4
Sat, May 9, 10:00 AM
Fairview Heights · Radisson Hotel Fairview Heights - St. Louis
WrestleBreed at SICW FanFest 4
Sat, May 9, 10:00 AM
Fairview Heights · Radisson Hotel Fairview Heights - St. Louis
St.Louis Anime-Fest
Sun, Sep 27, 10:00 AM
St. Louis · Holiday Inn St. Louis - Downtown Conv Ctr, an IHG Hotel
St.Louis Anime-Fest
Sun, Sep 27, 10:00 AM
St. Louis · Holiday Inn St. Louis - Downtown Conv Ctr, an IHG Hotel
2026 MO Ladies Conference Registration
Thu, Apr 30, 3:00 PM
Saint Charles · St. Charles Convention Center
2026 MO Ladies Conference Registration
Thu, Apr 30, 3:00 PM
Saint Charles · St. Charles Convention Center
2026 Always Late TV Movie Awards Film Festival
Sat, Mar 21, 8:00 AM + 1 more
Godfrey · Hatheway Cultural Center
2026 Always Late TV Movie Awards Film Festival
Sat, Mar 21, 8:00 AM + 1 more
Godfrey · Hatheway Cultural Center
Our magic algorithm thinks you'll like these options.
Frequently asked questions about O'fallon
What are the best convention events to attend?
According to Eventbrite, the best convention events are:
Which events are currently trending in O'fallon?
The trending searches this month in O'fallon are:
Which convention events are coming up?
Discover the best convention events happening soon – you don't want to miss them: