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Contact Information

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Ontario High School
24 Hour Attendance Line

(909) 460-5832

2017-18 Open Enrollment

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The Common Core State Standards Overview

Final Exam Schedules

Grades 9-11

  Mon., May 22 Tues., May 23 Wed., May 24
7:30-9:30 Period 6 Period 5 Period 4
9:30-9:43 Break Break Break
9:50-11:50 Period 3 Period 2 Period 1

Grade 12

Fri., May 12 & Mon., May 15 Pd 6 &3 Reg Bell Schedule
Tues., May 16 & Wed., May 17 Pd 5 & 2 Reg Bell Schedule
Thur., May 18 & Fri., May 19 Pd 4 & 1 Reg Bell Schedule

OHS Final Exam Schedule

Hello Jags!

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 beautiful Jaguar Stadium on May 24 at 6:30 p.m.

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 this page and keep in mind that we dismiss early on May 22, 23, and 24., school will end at 11:50 a.m. on those days.

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 on the first day of school, August 7th!  Congratulations to the class of 2017, we are proud of you!

Mr. Zaldivar

Follow us on Twitter at @OntarioHS


Scholarship Opportunity

Promise Scholars Scholarship!
Click Here!


Please complete the items at the above link to access your $100 Promise Scholars (PS) scholarship and to be entered to win additional scholarships valued up to $1,000. PS scholarships are for students who attended an Ontario-Montclair School District middle school and will graduate from a CJUHSD high school. Students receiving the City of Ontario Community College Promise or Chaffey Online to College Scholarship are not eligible. Completion of FAFSA or Dream Act application is required. If you have any questions, please call (909) 418-6331.

Am I Ready for the Future?

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

Week At A Glance

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Spring Tutoring Schedule

Spring Tutoring Schedule

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. 


Jaguars, Ontario High School is excited to provide the extended learning opportunities listed below. Please attend the free tutoring sessions and the Saturday RISE sessions in order to increase your achievement and maximize your academic potential. Go Jags!

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


Metro Honda - Perfect Attendance New Car Give Away


Get perfect attendance at Ontario High School during the 2016-17 school year and you will be eligible to win a new car from Metro Honda!


Official Rules

Go Jaguars!


Mr. Zaldivar, Principal

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OHS Summer Assignment Logo

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OHS News

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Dream Act

School Accountability Report Card

2015-2016 - English
2015-2016 - Spanish

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

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.