Direct flights from Chicago to Ontario ORD → ONT

United Airlines operates nonstop flights from Chicago (ORD) to Ontario (ONT). The nonstop flight takes around ~3h 25m, covering 1,696 miles (2,730 km) and operates daily. Updated 28 June 2026.

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Frequently asked questions

Is there a direct flight from Chicago to Ontario?

Yes, United Airlines operates nonstop flights from Chicago (ORD) to Ontario (ONT).

Which airlines fly direct from Chicago to Ontario?

United Airlines operates nonstop flights from Chicago to Ontario.

How long is the flight from Chicago to Ontario?

The nonstop flight from Chicago to Ontario takes ~3h 25m (approximately 2730 km).

How often do direct flights operate from Chicago to Ontario?

Nonstop flights from Chicago to Ontario operate daily.

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