Ontario Airport Guide to Ontario International Airport (ONT)

Ontario Airport Terminals

Ontario International Airport consists of a couple of passenger terminals (Terminal 2 and Terminal 4) and the small International Arrivals Terminal. 


Take a look at the passenger terminals at Ontario Airport. 

Terminal 2

Ontario Airport Terminal 2 counts with 12 boarding gates and distributed into a couple of levels. 

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Terminal 4

Ontario Airport Terminal 4 counts with 14 boarding gates and is only served by Southwest and American Airlines. 

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 International Arrivals Terminal of Ontario Airport 

The International Arrivals Terminal handles all international arrivals in Ontario Airport.

It consists of two boarding gates to only handle arrivals.

Passengers go through a passport check and customs. 

Please note that the old terminal is now a USO Lounge.

The Terminal is connected to Terminal 2 and Terminal 4 through a Shuttle Bus. 


Ontario Airport was build to accommodate future growth.

The airport’s facilities counts with enough surface to built further terminals if needed. 


A free shuttle service is provided to connect the passenger terminals, the parking lot 5, the Ontario Bob Hope USO, and the Rental Car Facility.

Note that shuttles are wheelchair accessible.

Schedule: 24/7, every 5 up to 20 minutes, with less frequency between 12:30 am to 03:00 am.