American Airlines flights from Cleveland to Ontario

Recent searches for flights from Cleveland to Ontario

Aug 2026
From$472*
Updated: 10 hours ago
Round tripIEconomy
Sep 2026
From$337*
Updated: 10 hours ago
Round tripIEconomy
Oct 2026
From$337*
Updated: 10 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $337
cmp-daily-histogram-bars-legend-max-price-aria-label $743
Displaying fares for August-2026
  • CLE–ONT, 08/20/26 – 08/27/26: From $743
    20

    Th

    AUG

  • CLE–ONT, 08/21/26 – 08/28/26: From $743
    21

    Fr

  • CLE–ONT, 08/22/26 – 08/29/26: From $567
    22

    Sa

  • CLE–ONT, 08/23/26 – 08/30/26: From $743
    23

    Su

  • CLE–ONT, 08/24/26 – 08/31/26: From $743
    24

    Mo

  • CLE–ONT, 08/25/26 – 09/01/26: From $567
    25

    Tu

  • CLE–ONT, 08/26/26 – 09/02/26: From $472
    26

    We

  • CLE–ONT, 08/27/26 – 09/03/26: From $675
    27

    Th

  • CLE–ONT, 08/28/26 – 09/04/26: From $675
    28

    Fr

  • CLE–ONT, 08/29/26 – 09/05/26: From $567
    29

    Sa

  • CLE–ONT, 08/30/26 – 09/06/26: From $675
    30

    Su

  • CLE–ONT, 08/31/26 – 09/07/26: From $711
    31

    Mo

  • CLE–ONT, 09/01/26 – 09/08/26: From $567
    01

    Tu

    SEP

  • CLE–ONT, 09/02/26 – 09/09/26: From $357
    02

    We

  • CLE–ONT, 09/03/26 – 09/10/26: From $472
    03

    Th

  • CLE–ONT, 09/04/26 – 09/11/26: From $488
    04

    Fr

  • CLE–ONT, 09/05/26 – 09/12/26: From $375
    05

    Sa

  • CLE–ONT, 09/06/26 – 09/13/26: From $577
    06

    Su

  • CLE–ONT, 09/07/26 – 09/14/26: From $573
    07

    Mo

  • CLE–ONT, 09/08/26 – 09/15/26: From $452
    08

    Tu

  • CLE–ONT, 09/09/26 – 09/16/26: From $438
    09

    We

  • CLE–ONT, 09/10/26 – 09/17/26: From $342
    10

    Th

  • CLE–ONT, 09/11/26 – 09/18/26: From $369
    11

    Fr

  • CLE–ONT, 09/12/26 – 09/19/26: From $353
    12

    Sa

  • CLE–ONT, 09/13/26 – 09/20/26: From $517
    13

    Su

  • CLE–ONT, 09/14/26 – 09/21/26: From $564
    14

    Mo

  • CLE–ONT, 09/15/26 – 09/22/26: From $337
    15

    Tu

  • CLE–ONT: cmp-view-offers-disclaimer. Find Offers
    16

    We

  • CLE–ONT: cmp-view-offers-disclaimer. Find Offers
    17

    Th

  • CLE–ONT: cmp-view-offers-disclaimer. Find Offers
    18

    Fr

  • CLE–ONT, 09/19/26 – 09/26/26: From $337
    19

    Sa

    • range$337-$743

    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 Cleveland to Ontario flights

    $
    keyboard_arrow_down

    Cleveland (CLE)to

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

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

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

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

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

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

    Ontario (ONT)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

    Ontario (ONT)
    09/19/26 - 09/26/26

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

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

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

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

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 hours ago

    Cleveland (CLE)to

    Ontario (ONT)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $337Fare subject to changes
    Updated: 10 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 Cleveland to Ontario

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