Best events in
Ontario

Looking for events or things to do in Ontario, CA? The local scene balances the community-focused atmosphere of Downtown with the high-energy entertainment found in the Arena District. This means everything from neighborhood art walks and outdoor movies to major concerts and professional sports are part of the city's fabric.

The Arena District offers a bustling night out, anchored by large-scale shows at the Toyota Arena and plenty of dining and entertainment at Ontario Mills.
Downtown Ontario is a hub for community gatherings at Ontario Town Square, which hosts the recurring Summer Concert Series and outdoor movies.
For a night of laughs, the Ontario Improv schedules a steady stream of stand-up comedians, while the Granada Theatre provides a historic entertainment backdrop.

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Inland Empire Speed Dating for Singles Age 24-42 ♥ Ontario California at Brew Haven

Thu, Oct 22 • 8:00 PM

Brew Haven

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Bass Invaders Halloween Edition

Fri, Oct 23 • 8:00 PM

Dave & Buster's Ontario

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La Experiencia MON LAFERTE con Tormento en Ontario!

Fri, Oct 30 • 9:30 PM

Mix Champagne Lounge

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Halloween Masquerade Ball, SCORPIO Edition, BOMBAY Ultra Lounge

Sat, Oct 31 • 9:00 PM

Bombay Ultra Lounge

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Inland Empire Speed Dating for Singles Age 24-42 ♥ Ontario California at Brew Haven

Thu, Oct 22 • 8:00 PM

Brew Haven

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Bass Invaders Halloween Edition

Fri, Oct 23 • 8:00 PM

Dave & Buster's Ontario

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La Experiencia MON LAFERTE con Tormento en Ontario!

Fri, Oct 30 • 9:30 PM

Mix Champagne Lounge

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Halloween Masquerade Ball, SCORPIO Edition, BOMBAY Ultra Lounge

Sat, Oct 31 • 9:00 PM

Bombay Ultra Lounge

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Popular in Ontario

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Halloween Event

Today • 1:00 PM

2254 S Euclid Ave suite b

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Ontario CERT Basic Academy - October 2026

Thu, Oct 15 • 6:00 PM

Ontario Fire Dept. Station 3

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EVENING at the Ontario Improv Comedy Club 10/16

Fri, Oct 16 • 8:30 PM

Ontario Improv

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FREE Family Pumpkin Patch in Eastvale | Pumpkins, Bounce House & More!

Sat, Oct 17 • 11:00 AM

5329 Hamner Ave suite 601

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Phil Wickham - Ontario, CA - World Vision Volunteers

Sun, Oct 18 • 4:45 PM

Toyota Arena

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2026 Latina BIZCON™ The Leverage Year

Thu, Oct 29 • 8:00 AM

Ontario Convention Center

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251st Marine Corps Birthday Festival (EVERYONE IS WELCOME)

Tue, Nov 10 • 4:00 PM

Side Action Apparel Headquarters

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PEI Fall CE 2026- Ontario, CA

Thu, Nov 12 • 6:00 PM

Delta Hotels Ontario Airport

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Halloween Event

Today • 1:00 PM

2254 S Euclid Ave suite b

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Ontario CERT Basic Academy - October 2026

Thu, Oct 15 • 6:00 PM

Ontario Fire Dept. Station 3

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EVENING at the Ontario Improv Comedy Club 10/16

Fri, Oct 16 • 8:30 PM

Ontario Improv

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FREE Family Pumpkin Patch in Eastvale | Pumpkins, Bounce House & More!

Sat, Oct 17 • 11:00 AM

5329 Hamner Ave suite 601

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Phil Wickham - Ontario, CA - World Vision Volunteers

Sun, Oct 18 • 4:45 PM

Toyota Arena

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2026 Latina BIZCON™ The Leverage Year

Thu, Oct 29 • 8:00 AM

Ontario Convention Center

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251st Marine Corps Birthday Festival (EVERYONE IS WELCOME)

Tue, Nov 10 • 4:00 PM

Side Action Apparel Headquarters

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PEI Fall CE 2026- Ontario, CA

Thu, Nov 12 • 6:00 PM

Delta Hotels Ontario Airport

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Online Events

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A Norman stitch-up? The story behind the Bayeux Tapestry

Wednesday • 7:30 PM GMT+1

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AI Kids Music Video Studio: Produce Black Nursery Rhyme for YouTube

Thursday • 6:00 PM EDT

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HBR Press Webinar: Resilient Optimism

Thu, Oct 15 • 8:00 AM EDT

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HBR Book Webinar: Resilient Optimism

Thu, Oct 15 • 1:00 PM GMT+1

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(ONLINE) Women on the Move with Ann Patchett

Tue, Oct 27 • 11:30 AM EDT

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No Title, No Permission, No Problem: Harnessing the Power of Influence

Thu, Nov 5 • 1:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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A Norman stitch-up? The story behind the Bayeux Tapestry

Wednesday • 7:30 PM GMT+1

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AI Kids Music Video Studio: Produce Black Nursery Rhyme for YouTube

Thursday • 6:00 PM EDT

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HBR Press Webinar: Resilient Optimism

Thu, Oct 15 • 8:00 AM EDT

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HBR Book Webinar: Resilient Optimism

Thu, Oct 15 • 1:00 PM GMT+1

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(ONLINE) Women on the Move with Ann Patchett

Tue, Oct 27 • 11:30 AM EDT

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No Title, No Permission, No Problem: Harnessing the Power of Influence

Thu, Nov 5 • 1:00 PM GMT

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Lean Global Connection 2026

Thu, Nov 12 • 2:00 PM UTC

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Washington Crossing the Delaware / The Crossing - Film History Livestream

Sat, Dec 19 • 8:00 PM EST

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This Weekend

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BLS - American Heart Association | Ontario, CA

Today • 10:00 AM + 10 more

2416 S Grove Ave

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Halloween Event

Today • 1:00 PM

2254 S Euclid Ave suite b

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Halloween event Magicland children's dental

Today • 1:00 PM

2254 S Euclid Ave

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BLS - American Heart Association | Ontario, CA

Today • 10:00 AM + 10 more

2416 S Grove Ave

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Halloween Event

Today • 1:00 PM

2254 S Euclid Ave suite b

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Halloween event Magicland children's dental

Today • 1:00 PM

2254 S Euclid Ave

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Points of Interest near Ontario

Ontario Museum Of History Art

Frequently asked questions about Ontario

Where can I find comedy shows in Ontario, CA?

Ontario Improv is the city's main destination for stand-up comedy. The club features both well-known touring comedians and up-and-coming talent multiple nights a week, making it a reliable spot for a laugh.

What are some family-friendly events in Downtown Ontario?

Downtown's Ontario Town Square is the center for family-friendly events. It hosts a summer concert series, outdoor movie screenings, and the annual Christmas on Euclid Experience, creating a welcoming atmosphere for all ages.

What's the nightlife like in the Arena District?

The Arena District has a high-energy nightlife scene focused on big events. Major concerts and Ontario Reign hockey games at Toyota Arena draw big crowds, while nearby Ontario Mills offers late-night dining and entertainment.

Are there free events to attend in Ontario?

Ontario hosts several popular free events, especially during warmer months. The Summer Concert Series and the Movies in the Park program, both held at Ontario Town Square, are great examples of community events that are free to attend.

How can I find local art events in Ontario?

The Emporia Arts District is the best place to find local art events. Look for the Emporia Art Walk, a quarterly event that showcases regional artists and opens up galleries in the Downtown area.

Which major outdoor events happen in Ontario, CA?

Ontario's signature outdoor event is the Route 66 Cruisin' Reunion. This annual celebration of classic car culture takes over Euclid Avenue with cruises, contests, and entertainment each September.

Where are the best places for live music events in Ontario?

Toyota Arena is the top venue for major live music events and touring acts. For more local and free performances, the Summer Concert Series at Ontario Town Square is a popular choice for outdoor music.

Any good date night ideas in Ontario?

A comedy show at the Ontario Improv is a classic date night choice. For a more relaxed evening, exploring the restaurants near the historic Granada Theatre in Downtown offers a different kind of atmosphere.