American Airlines flights from Ontario to Atlanta

Recent searches for flights from Ontario to Atlanta

Aug 2026
From$496*
Updated: 2 hours ago
Round tripIEconomy
Sep 2026
From$469*
Updated: 2 hours ago
Round tripIEconomy
Oct 2026
From$469*
Updated: 2 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $496
cmp-daily-histogram-bars-legend-max-price-aria-label $849
Displaying fares for August-2026
  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    08

    Sa

    AUG

  • ONT–ATL, 08/09/26 – 08/16/26: From $849
    09

    Su

  • ONT–ATL, 08/10/26 – 08/17/26: From $849
    10

    Mo

  • ONT–ATL, 08/11/26 – 08/18/26: From $849
    11

    Tu

  • ONT–ATL, 08/12/26 – 08/19/26: From $849
    12

    We

  • ONT–ATL, 08/13/26 – 08/20/26: From $849
    13

    Th

  • ONT–ATL, 08/14/26 – 08/21/26: From $849
    14

    Fr

  • ONT–ATL, 08/15/26 – 08/22/26: From $778
    15

    Sa

  • ONT–ATL, 08/16/26 – 08/23/26: From $779
    16

    Su

  • ONT–ATL, 08/17/26 – 08/24/26: From $779
    17

    Mo

  • ONT–ATL, 08/18/26 – 08/25/26: From $778
    18

    Tu

  • ONT–ATL, 08/19/26 – 08/26/26: From $779
    19

    We

  • ONT–ATL, 08/20/26 – 08/27/26: From $779
    20

    Th

  • ONT–ATL, 08/21/26 – 08/28/26: From $779
    21

    Fr

  • ONT–ATL, 08/22/26 – 08/29/26: From $619
    22

    Sa

  • ONT–ATL, 08/23/26 – 08/30/26: From $619
    23

    Su

  • ONT–ATL, 08/24/26 – 08/31/26: From $619
    24

    Mo

  • ONT–ATL, 08/25/26 – 09/01/26: From $619
    25

    Tu

  • ONT–ATL, 08/26/26 – 09/02/26: From $619
    26

    We

  • ONT–ATL, 08/27/26 – 09/03/26: From $619
    27

    Th

  • ONT–ATL, 08/28/26 – 08/31/26: From $501
    28

    Fr

  • ONT–ATL, 08/29/26 – 09/05/26: From $525
    29

    Sa

  • ONT–ATL, 08/30/26 – 09/06/26: From $496
    30

    Su

  • ONT–ATL, 08/31/26 – 09/07/26: From $569
    31

    Mo

  • ONT–ATL, 09/01/26 – 09/08/26: From $519
    01

    Tu

    SEP

  • ONT–ATL, 09/02/26 – 09/09/26: From $519
    02

    We

  • ONT–ATL, 09/03/26 – 09/10/26: From $519
    03

    Th

  • ONT–ATL, 09/04/26 – 09/11/26: From $496
    04

    Fr

  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    05

    Sa

  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    06

    Su

  • ONT–ATL: cmp-view-offers-disclaimer. Find Offers
    07

    Mo

    • range$496-$849

    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 Ontario to Atlanta flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    Atlanta (ATL)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/01/26 - 10/08/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/02/26 - 10/09/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/04/26 - 10/11/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/19/26 - 10/26/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 hours ago

    Ontario (ONT)to

    Atlanta (ATL)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $469Fare subject to changes
    Updated: 2 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 Ontario to Atlanta

    Looking for lower fares on your trip from Ontario to Atlanta? 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 Ontario to Atlanta