Cheap flights from Chicago to Ontario

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

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Live fares · ORD → ONT

Frequently asked questions

  • How long is the flight from Chicago to Ontario?

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