Flights from Ontario to Pittsburgh from $ 397*

Promotion Code

Changed bag rules and optional services         Cruise Packages

Featured daily fares for flights from Ontario (ONT) to Pittsburgh (PIT)

Try alternate month or interact with individual days below in order to find offers.
Mar 2026
No result for this month
Apr 2026
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May 2026
From$ 397*
Viewed: 1 day ago
RoundTrip|Economy
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    • *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.

    More United deals on Ontario (ONT) to Pittsburgh (PIT) flights

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    More United deals on Ontario (ONT) to Pittsburgh (PIT) flights
    From
    To
    Fare Type
    Dates
    Price
    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		05/08/26 - 05/12/26

    from

    $ 397

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		09/01/26 - 09/10/26

    from

    $ 587

    Viewed: 22 hours ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		08/05/26 - 08/05/26

    from

    $ 609

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		07/22/26 - 07/22/26

    from

    $ 609

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		05/08/26 - 05/12/26

    from

    $ 684

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		08/05/26 - 08/05/26

    from

    $ 854

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		05/08/26 - 05/12/26

    from

    $ 857

    Viewed: 1 day ago

    Ontario (ONT)Pittsburgh (PIT)Roundtrip
    |
    Economy    		08/05/26 - 08/05/26

    from

    $ 1,070

    Viewed: 1 day 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.

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