Cheap flights from Ontario to Chicago

Direct flight: 2,730 km, ~3h 13m from Ontario (ONT) to Chicago (ORD).

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Live fares · ONT → ORD

Frequently asked questions

  • How long is the flight from Ontario to Chicago?

    Direct flights from ONT to ORD cover approximately 2,730 km (1,696 miles), with an estimated flight time of 3h 13m. Operating airlines: UA.

Related guides for this route

Sibling pages — full route detail, airport overviews, visa context, per-airline routes.

Full route page: ONT → ORD Cheapest month to fly to Chicago All flights from Ontario All flights to Chicago Flights to USA Visa-free with USA passport UA routes