Ontario International Airport Overview

Ontario International Airport (ONT) is in the city of Ontario, California, in the part of Southern California known as the Inland Empire. It gives travellers an alternative to the larger airports closer to the coast, with two passenger terminals, a mix of domestic and international routes, and generally easier parking and security than the big hubs.

Location and Distance to Los Angeles

The airport lies roughly 35 to 40 miles (about 60 kilometres) east of downtown Los Angeles. It is closer to many Inland Empire communities, including Ontario, Rancho Cucamonga and San Bernardino, which makes it a practical choice for visitors heading to the eastern suburbs, the mountains or the desert. Driving times to central Los Angeles depend heavily on freeway traffic.

Terminals at Ontario International Airport

Passenger flights use Terminal 2 and Terminal 4. The two buildings are similar in size and each has its own check-in, security and gates. International arrivals are processed in a separate facility. Always check which terminal your airline uses before you set off.

Airlines and Routes from Ontario

A wide range of carriers serve ONT, including Southwest, American Airlines, Delta, United, Alaska Airlines and Frontier. Domestic flights reach major US hubs and leisure cities. International services include nonstop flights to Taipei, operated by China Airlines and Starlux Airlines.

Ground Transport from Ontario International Airport

Public transport is available if you prefer not to drive. The ONT Connect shuttle, run by Omnitrans, links both terminals with the Rancho Cucamonga Metrolink station. From there, trains on the San Bernardino Line continue to Los Angeles Union Station. Rental cars, taxis, ride-hailing and hotel shuttles are also available.

What to See Near Ontario, California

The Inland Empire is a good base for exploring. The San Gabriel and San Bernardino Mountains rise to the north, with hiking and winter snow. Palm Springs and the desert lie further east, and the attractions of Los Angeles are within reach by car or rail.

Tips for Flying from Ontario International Airport

• Check your terminal in advance, as airlines are split between Terminal 2 and Terminal 4.
• If you use the shuttle and train, match your plans to Metrolink timetables, which are less frequent in the evening.
• Leave extra time for freeway traffic at peak hours.

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