American Airlines flights from Monterey to Ontario

Recent searches for flights from Monterey to Ontario

Aug 2026
From$718*
Updated: 1 hour ago
Round tripIEconomy
Sep 2026
From$467*
Updated: 1 hour ago
Round tripIEconomy
Oct 2026
From$467*
Updated: 1 hour ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $500
cmp-daily-histogram-bars-legend-max-price-aria-label $2.0K
Displaying fares for August-2026
  • MRY–ONT, 08/11/26 – 08/18/26: From $863
    11

    Tu

    AUG

  • MRY–ONT, 08/12/26 – 08/19/26: From $879
    12

    We

  • MRY–ONT, 08/13/26 – 08/20/26: From $967
    13

    Th

  • MRY–ONT, 08/14/26 – 08/21/26: From $915
    14

    Fr

  • MRY–ONT, 08/15/26 – 08/22/26: From $863
    15

    Sa

  • MRY–ONT, 08/16/26 – 08/23/26: From $1,242
    16

    Su

  • MRY–ONT, 08/17/26 – 08/24/26: From $1,973
    17

    Mo

  • MRY–ONT, 08/18/26 – 08/25/26: From $856
    18

    Tu

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

    We

  • MRY–ONT, 08/20/26 – 08/27/26: From $944
    20

    Th

  • MRY–ONT, 08/21/26 – 08/28/26: From $892
    21

    Fr

  • MRY–ONT, 08/22/26 – 08/29/26: From $872
    22

    Sa

  • MRY–ONT, 08/23/26 – 08/30/26: From $1,106
    23

    Su

  • MRY–ONT, 08/24/26 – 08/31/26: From $885
    24

    Mo

  • MRY–ONT, 08/25/26 – 09/01/26: From $718
    25

    Tu

  • MRY–ONT, 08/26/26 – 09/02/26: From $718
    26

    We

  • MRY–ONT, 08/27/26 – 09/03/26: From $790
    27

    Th

  • MRY–ONT, 08/28/26 – 09/04/26: From $864
    28

    Fr

  • MRY–ONT, 08/29/26 – 09/05/26: From $828
    29

    Sa

  • MRY–ONT, 08/30/26 – 09/06/26: From $763
    30

    Su

  • MRY–ONT, 08/31/26 – 09/07/26: From $733
    31

    Mo

  • MRY–ONT, 09/01/26 – 09/08/26: From $587
    01

    Tu

    SEP

  • MRY–ONT, 09/02/26 – 09/09/26: From $687
    02

    We

  • MRY–ONT, 09/03/26 – 09/10/26: From $705
    03

    Th

  • MRY–ONT, 09/04/26 – 09/11/26: From $527
    04

    Fr

  • MRY–ONT, 09/05/26 – 09/12/26: From $500
    05

    Sa

  • MRY–ONT, 09/06/26 – 09/13/26: From $817
    06

    Su

  • MRY–ONT, 09/07/26 – 09/14/26: From $990
    07

    Mo

  • MRY–ONT: cmp-view-offers-disclaimer. Find Offers
    08

    Tu

  • MRY–ONT: cmp-view-offers-disclaimer. Find Offers
    09

    We

  • MRY–ONT, 09/10/26 – 09/17/26: From $577
    10

    Th

    • range$500-$1,973

    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 Monterey to Ontario flights

    $
    keyboard_arrow_down

    Monterey (MRY)to

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

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

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

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

    Ontario (ONT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

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

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

    Ontario (ONT)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

    Ontario (ONT)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

    Ontario (ONT)
    09/22/26 - 09/29/26

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 1 hour ago

    Monterey (MRY)to

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

    Round trip

    Economy

    from
    $467Fare subject to changes
    Updated: 20 hours 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 Monterey to Ontario

    Looking for lower fares on your trip from Monterey 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 Monterey to Ontario