Your satisfaction and safety is our top priority and we want to make sure your concern reaches the correct department. Please select a form below:
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.
Concerns with security
To contact the Transportation Security Administration (TSA) or U.S. Customs and Border Protection (CBP) select a link below. These agencies are supervised by the U.S. Department of Homeland Security, so ONT is not able to handle inquiries of this nature.
Questions about your flight
If you have questions about your flight or luggage, experience at your gate or service on your aircraft, please contact your airline directly. For a quick response, try reaching out to your airline via their Twitter or Facebook.
Pre-book parking (booking.flyontario.com) inquiries
For assistance with your reservation made at booking.flyontario.com, our pre-book parking FAQs may save you a call or email. If you'd prefer to speak with staff, use the following contact information:
Call: (909) 284 5924
Operating Hours (Pacific):
Mon-Fri: 4AM - 5PM
Sat/Sun: 5AM - 5PM
Contact Lost & Found
If you lost items in the public areas of Ontario International Airport (not in security and not on your flight), feel free to contact our Lost & Found Department at (909)-544-5128 or via our Lost & Found form.
Hours of Operation: 7 a.m. - 12 p.m. and 1 p.m. - 3:30 p.m. PST, Monday - Friday
For more information visit our Customer Service page.