International Program Enrollment

We invite you to apply to Ontario Christian School. Our team will help guide you through the admissions process outlined below.

Steps to International Program Enrollment at Ontario Christian


Inquire with Our International Admissions Team

Please fill out an international admissions inquiry form or contact our Admissions Department directly if you have questions about our program prior to applying.


Download the Application Packet


Return Your Completed Application

Send the completed application to You can also mail your completed application to:

Ontario Christian Schools
ATTN: Jami Mendoza
931 W. Philadelphia St.
Ontario, CA 91762


International Student Admissions Assessment

The International Student Admissions Assessment (ISAA) is a three-part test consisting of an interview, an oral fluency exam, and a language assessment. The average time needed to complete it in 45 minutes. This test is required for all new international students applying to Ontario Christian Schools and must be scheduled by our International Admissions Director. Students will take the test via Skype once they have successfully scheduled an appointment.

Installing the Software and Making an Appointment

  • Download and install Skype.
    If Skype is already installed on your computer, skip to step two.
  • Create a Skype username and password.
  • Send an email to with your full name, Skype username, and email address that you used to register with your Skype.

Once your information is received, we will contact you to schedule your ISAA appointment. ISAA appointments are on a first-come, first-served basis.

Preparing for your Test and Interview

Download the ‘How to Prepare for the ISAA‘ instructions



The enrollment process begins after the student has been accepted to Ontario Christian School. 

I'm Interested in the

Admissions Process

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Have Questions About the International Program?

Please reach out to our team.

Photo of Jami Mendoza

Jami Mendoza

Director of International Services
(909) 718-8647

A unique past and present.

Ontario Christian School is a nonprofit, independent private school, owned and directed by an association of parents and friends of Christian education. We seek to see every student equipped to be courageous leaders who serve God and others, seek His Truth, and impact culture

Be part of our family.

Ontario Christian School is a Christ-centered and transformative community. Here, your child is equipped to be a courageous leader who serves God and others, seeks His truth, and impacts culture. Our friendly and experienced team looks forward to partnering with you as you learn more about our school.

World-Class Education.

Ontario Christian offers many academic programs for students from preschool to 12th grade. See how our top-ranked private school provides your child with a Christ-centered, college preparatory curriculum equipping them to excel in scholarship and grow in discipleship.

Healthy minds and bodies.

Ontario Christian fields more than 25 CIF teams winning more than 150 league titles...and counting! Here, students can get involved from football, basketball, and baseball to volleyball, soccer, softball, and golf.

Knight Life

Our calendar, blog, and publications will help keep you informed with all of the latest happenings on campus - and beyond. Stay connected with Ontario Christian and we look forward to seeing you at the next game, performance, or community event! When you're a Knight, you're family.

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The support of parents, grandparents, and our friends in the community is vital to our ongoing success. We covet your generosity in the form of prayers, time, and finances.

Ontario Christian Schools

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