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Contact Information

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Ontario High School
24 Hour Attendance Line

(909) 460-5832

LCAP Survey

College & Career Opportunities

Click the image above to access college and career opportunities.

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Community Updates

District Payment Center


The Common Core State Standards Overview

Summer School Schedule

Summer School 2016

Monday, May 23rd - Thursday, June 30th
*No Classes on Fridays, except June 3rd
*No Classes on May 30th (Memorial Day) or June 9th


Bell Schedule

Period Time
1 8:30-10:50
Break 10:50-11:05
2 11:10-1:30


Complete Summer Mailer Online!


The Chaffey Joint Union High School District is now offering the option of completing the summer mailer online for returning students. If interested, please complete and return the Online Authorization Form to Ontario High School to get your Aeries Parent Portal account.

Online Authorization Form: English, Spanish

Login to Aeries Parent Portal


Am I Ready for the Future?

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Hello Jaguar Family,

We are near the end of the school year and our students will take their finals very soon!  We will have our graduation ceremony in our new Jaguar Stadium on May 19 and the class of 2016 will be the inaugural class.

As students prepare for finals, we will continue to have after school tutoring and the library is open until 4:30, Monday-Thursday.  Our cafeteria also provides a snack to students who attend tutoring!

Please see the finals schedule on on this page and keep in mind that we will dismiss early on May 17, 18, and 19. School will end at 11:50 a.m. on those days.

Summer school takes place May 23rd-June 30 from 8:30 a.m.-1:30 p.m.

I want to thank you for supporting our school and most importantly for supporting your son/daughter.  It is an honor to be your principal!

Have a great summer and we will see you August 8th!  Congratulations to the class of 2016, we are proud of you!     


Mr. Zaldivar


Follow us on Twitter at @OntarioHS



All Ontario High School students will graduate ready for college and careers.

Week At A Glance


Apply Online for Meal Benefits

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Try a new and convenient way to apply for Free and Reduced Meal Benefits online. It's fast, easy and confidential. 

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Go Jaguars!


Mr. Zaldivar, Principal

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Promise Scholars Registration

Click here to register for the Promise Scholars Scholarship.

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OHS News

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Dream Act

School Accountability Report Card

2014-2015 - English
2013-2014 - Spanish

A hard copy of our SARC Report is available in the main office.

Volunteer Opportunity

The City of Rancho Cucamonga is looking for
Volunteer Volleyball Coaches
for Youth League
(Experience is NOT required)


Volunteer Flyer
Youth Volleyball Flyer


Hey Ontario.....


The Chaffey Joint Union High School District has partnered with School Loop. School Loop is an innovative communication tool designed to keep parents, students, teachers and staff connected. With School Loop parents and students can:

  •  Check assignments online
  •  Monitor current grades
  •  Email teachers/counselors
  •  View school news/events
  •  Submit work electronically

Every Chaffey District parent and student is encouraged to register. It takes less than two minutes to sign up and all accounts are FREE! Click the 'Register Now' tab on the top left of this page.