Cheap flights from San Francisco to Ontario

Direct flight: 585 km, ~41m from San Francisco (SFO) to Ontario (ONT).

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Live fares · SFO → ONT

Frequently asked questions

  • How long is the flight from San Francisco to Ontario?

    Direct flights from SFO to ONT cover approximately 585 km (364 miles), with an estimated flight time of 41m. Operating airlines: F9, UA.

Related guides for this route

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

Full route page: SFO → ONT Cheapest month to fly to Ontario All flights from San Francisco All flights to Ontario Flights to USA Visa-free with USA passport F9 routes UA routes