Alaska Airlines Flights from Oakland to Ontario

Lowest fares from Oakland to Ontario

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Mar 2026
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Apr 2026
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May 2026
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    • One-way low-fare flights Oakland to Ontario.*

    $
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    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

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