ONT
Ontario Intl
Ontario, CA
Quick Location Summary
- Terminal 2 (Post-Security): Near Gate 210 - Indoor "Barking Lot"
- Terminal 4 (Post-Security): Near Gate 410 - Indoor "Barking Lot"
- Both Terminals (Pre-Security): Outdoor areas at the far east ends of terminal buildings
Post-Security (Airside)
Terminal 2 - Indoor Pet Relief Area
Located near Gate 210, east of the security screening area. This indoor facility is branded as a "Barking Lot" and can be found by following directional signage after clearing security.
Terminal 4 - Indoor Pet Relief Area
Located near Gate 410, east of the security screening area. Like Terminal 2, this indoor "Barking Lot" is accessible after TSA screening by following posted directional maps and signage.
Pre-Security (Landside)
Outdoor Pet Relief Areas
Service animal relief stations are conveniently positioned at the far east ends of both Terminal 2 and Terminal 4 buildings. These outdoor areas are located on the departure level of each terminal.
Amenities & Supplies
- Waste Management: All relief areas are equipped with disposable waste bags and trash cans for convenient cleanup
- Signage: Clear directional maps and signage guide travelers to indoor post-security locations
- Accessibility: Both indoor and outdoor options available to accommodate different travel itineraries
Important Notes
- Indoor pet relief areas are officially called "Barking Lots" at ONT
- Service animals must use elevators rather than escalators per airport safety regulations
- Pet relief areas serve both service animals and pets traveling through the airport
Last reviewed: March 2026