Flights from Kansas City to Ontario from $ 333*

Promotion Code

Featured daily fares for flights from Kansas City (MCI) to Ontario (ONT)

$ 387
$ 994
Displaying fares for April-2026
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  • Range$ 387-$ 994

    More United deals on Kansas City (MCI) to Ontario (ONT) flights

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    More United deals on Kansas City (MCI) to Ontario (ONT) flights
    From
    To
    Fare Type
    Dates
    Price
    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    06/16/26 - 06/23/26

    from

    $ 333

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    05/27/26 - 06/03/26

    from

    $ 340

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    06/23/26 - 06/30/26

    from

    $ 352

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    06/03/26 - 06/06/26

    from

    $ 360

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    06/03/26 - 06/10/26

    from

    $ 365

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    05/27/26 - 05/30/26

    from

    $ 365

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    05/30/26 - 06/03/26

    from

    $ 372

    Viewed: 20 hours ago

    Kansas City (MCI)Ontario (ONT)Roundtrip
    |
    Economy
    06/10/26 - 06/17/26

    from

    $ 373

    Viewed: 20 hours ago

    *Prices have been available for round trips within the last 48 hours and may not be currently available. For Economy class, fares listed may be Basic Economy, which is our most restrictive fare option and subject to additional restrictions. Additional baggage charges and fees for other optional service may apply. Other terms and conditions may apply. Schedules are subject to change without notice.