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 contact our Administration Office via the information below.


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)

Reach out through social media

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