Contact ONT

Your Satisfaction & Safety Is Our Top Priority

For questions and comments please contact the appropriate department below.

Contact Customer Service

We always strive to offer you a pleasant, convenient and memorable experience at ONT. If your experience was unsatisfactory or you have suggestions on how we can improve, we'd love to hear your feedback. Please fill out our customer experience feedback form or contact our Administration Office via the information below.

Calls to the Airport Control Center and the Airport are recorded. Continuing with the call waives an expectation of privacy.

Directory

Airlines: Visit airlines page

Customs and Border Protection: 1-877-227-5511

Lost and Found: 909-544-5128

Rental Car: Visit rental car page

TSA Customer Service: 866-289-9673

Toll Free: (833)-435-9668 (IFLYONT)

Addresses

Terminal 2
2500 E. Airport Drive
Ontario, CA 91761

Terminal 4
2900 E. Airport Drive
Ontario, CA 91761

International Terminal
2222 International Way
Ontario, CA 91761

ONT Rental Car Center
3450 East Airport Drive
Ontario, CA 91761

Administration Offices
1923 East Avion Street
Ontario, CA 91761

Reach out through social media

Reach out to us 24/7. Available for you @flyont

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