Direct flights from Ontario to Chicago ONT → ORD

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

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United Airlines UA

Departure Schedule next 7 days

More nonstops from Ontario

ONT → OAK Oakland ONT → DEN Denver 3 airlines ONT → SEA Seattle 3 airlines ONT → DFW Dallas-Fort Worth 2 airlines ONT → HNL Honolulu, Oahu 2 airlines ONT → IAH Houston 2 airlines ONT → LAS Las Vegas 2 airlines ONT → PHX Phoenix 2 airlines

Frequently asked questions

Is there a direct flight from Ontario to Chicago?

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

Which airlines fly direct from Ontario to Chicago?

United Airlines operates nonstop flights from Ontario to Chicago.

How long is the flight from Ontario to Chicago?

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

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ONT All direct flights from Ontario 🗓 Find cheapest round-trip dates → ORD All direct flights from Chicago ORD → ONT Return: Chicago to Ontario
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