American Airlines flights from Pittsburgh to Ontario

Recent searches for flights from Pittsburgh to Ontario

Jul 2026
From$1,077*
Updated: 9 minutes ago
Round tripIEconomy
Aug 2026
From$355*
Updated: 9 minutes ago
Round tripIEconomy
Sep 2026
From$355*
Updated: 9 minutes ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $355
cmp-daily-histogram-bars-legend-max-price-aria-label $1.1K
Displaying fares for July-2026
  • PIT–ONT: cmp-view-offers-disclaimer. Find Offers
    30

    Th

    JUL

  • PIT–ONT, 07/31/26 – 08/07/26: From $1,077
    31

    Fr

  • PIT–ONT, 08/01/26 – 08/08/26: From $1,077
    01

    Sa

    AUG

  • PIT–ONT, 08/02/26 – 08/09/26: From $1,077
    02

    Su

  • PIT–ONT, 08/03/26 – 08/10/26: From $1,077
    03

    Mo

  • PIT–ONT, 08/04/26 – 08/11/26: From $1,047
    04

    Tu

  • PIT–ONT, 08/05/26 – 08/12/26: From $1,047
    05

    We

  • PIT–ONT, 08/06/26 – 08/13/26: From $872
    06

    Th

  • PIT–ONT, 08/07/26 – 08/14/26: From $863
    07

    Fr

  • PIT–ONT, 08/08/26 – 08/15/26: From $872
    08

    Sa

  • PIT–ONT, 08/09/26 – 08/16/26: From $863
    09

    Su

  • PIT–ONT, 08/10/26 – 08/17/26: From $872
    10

    Mo

  • PIT–ONT, 08/11/26 – 08/18/26: From $863
    11

    Tu

  • PIT–ONT, 08/12/26 – 08/19/26: From $872
    12

    We

  • PIT–ONT, 08/13/26 – 08/20/26: From $491
    13

    Th

  • PIT–ONT, 08/14/26 – 08/21/26: From $533
    14

    Fr

  • PIT–ONT, 08/15/26 – 08/22/26: From $509
    15

    Sa

  • PIT–ONT, 08/16/26 – 08/23/26: From $597
    16

    Su

  • PIT–ONT, 08/17/26 – 08/24/26: From $491
    17

    Mo

  • PIT–ONT, 08/18/26 – 08/25/26: From $491
    18

    Tu

  • PIT–ONT, 08/19/26 – 08/26/26: From $491
    19

    We

  • PIT–ONT, 08/20/26 – 08/27/26: From $355
    20

    Th

  • PIT–ONT, 08/21/26 – 08/28/26: From $439
    21

    Fr

  • PIT–ONT, 08/22/26 – 08/29/26: From $355
    22

    Sa

  • PIT–ONT, 08/23/26 – 08/30/26: From $537
    23

    Su

  • PIT–ONT, 08/24/26 – 08/31/26: From $355
    24

    Mo

  • PIT–ONT, 08/25/26 – 09/01/26: From $355
    25

    Tu

  • PIT–ONT, 08/26/26 – 09/02/26: From $355
    26

    We

  • PIT–ONT: cmp-view-offers-disclaimer. Find Offers
    27

    Th

  • PIT–ONT: cmp-view-offers-disclaimer. Find Offers
    28

    Fr

  • PIT–ONT: cmp-view-offers-disclaimer. Find Offers
    29

    Sa

    • range$355-$1,077

    DisclaimerFares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Fares listed may be Basic Economy, which class is subject to additional terms and conditions. Additional baggage fees and charges for optional products and services may apply.

    Find deals on Pittsburgh to Ontario flights

    $
    keyboard_arrow_down

    Pittsburgh (PIT)to

    Ontario (ONT)
    10/03/26 - 10/10/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    08/20/26 - 08/27/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    08/26/26 - 09/02/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    Pittsburgh (PIT)to

    Ontario (ONT)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $355Fare subject to changes
    Updated: 9 minutes ago

    *Fares displayed have been collected within the last 24hrs and may no longer be available at time of booking. Some fares listed may include one or more connections that are Basic Economy, which class is subject to additional terms and conditions. Modifying this information may result in a different fare. To find the most updated fare, please visit aa.com. Additional baggage fees and charges for optional products and services may apply.

    Finding cheap flights from Pittsburgh to Ontario

    Looking for lower fares on your trip from Pittsburgh to Ontario? Here are a few ways to save.

    • Book early: Booking 1 to 3 months ahead can help you find lower fares
    • Be flexible with dates: Midweek travel, like Tuesdays and Wednesdays, can be more affordable
    • Travel during less busy periods: Flying outside peak travel times can help find lower fares and avoid crowds

    Earn up to $500 back on your next American Airlines flight plus, 30,000 bonus miles. Offers vary elsewhere. Opens another site in a new window that may not meet accessibility guidelines.

    Upgrade your flight with Main Cabin Extra

    Make your trip more comfortable with Main Cabin Extra. Enjoy benefits like:

    • Extra legroom: More space with seats at the front of the Main Cabin or in exit rows.
    • Early boarding: Preferred Group 5 boarding allows easier access to overhead bins.
    • Complimentary drinks: Enjoy beer, wine and spirits on flights with full beverage service.

    Discover how Main Cabin Extra can enhance your trip.

    American Airlines flights from Pittsburgh to Ontario