Alaska Airlines Flights from Newark to Ontario

Lowest fares from Newark to Ontario

Jul 2026
From$281*
Seen: 13 hours ago
Flight Type One Way|Saver
Aug 2026
From$571*
Seen: 18 hours ago
Flight Type One Way|Saver
Sep 2026
Try another month to see offers
cmp-daily-histogram-bars-legend-min-price-aria-label $281
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    • Range$281-$571

    *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.

    One-way low-fare flights Newark to Ontario.*

    $
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    One-way low-fare flights Newark to Ontario.*
    From
    To
    Fare Type
    Dates
    Price
    Newark (EWR)Ontario (ONT)One-way
    |
    Saver    		Depart: Mar 6, 2027

    From

    $190

    Seen: 2 hours ago

    Newark (EWR)Ontario (ONT)One-way
    |
    Saver    		Depart: Jul 11, 2026

    From

    $281

    Seen: 13 hours ago

    Newark (EWR)Ontario (ONT)One-way
    |
    Saver    		Depart: Jul 13, 2026

    From

    $325

    Seen: 9 hours ago

    Newark (EWR)Ontario (ONT)One-way
    |
    Saver    		Depart: Jul 19, 2026

    From

    $395

    Seen: 42 minutes ago

    Newark (EWR)Ontario (ONT)One-way
    |
    Saver    		Depart: Aug 2, 2026

    From

    $571

    Seen: 18 hours ago

    *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.

    Looking for more? See other routes