Ontario International Airport, ONT, has two terminals and a separate adjacent facility for international arrivals. The terminal numbering scheme was designed to adapt future growth under a prior airport master project.

Terminal 2 occupies 265,000 square feet (24,600 m2) and consists of 12 gates (Gates: 201–212). Terminal 4 covers 265,000 square feet (24,600 m2) and includes 14 gates (Gates: 401–414). Concerning the International arrivals facility, it has only two gates for only arrivals, and the building also houses a U.S. Customs and Border Protection and Federal Inspection Service (FIS). However, International charter routes depart from the main terminals. At the terminals, there is a circulator bus that runs around the airport and offers connections between terminals, rental car, remote parking garages, and public transit stops.



Departures Procedures and Security Measures at Ontario International Airport.

Car Rentals

General Information about Car Rental Service and Partner Companies available at Ontario International Airport.


Parking at Ontario International Airport