American Airlines flights from Ontario to Lexington

Recent searches for flights from Ontario to Lexington

Aug 2026
From$394*
Updated: 10 hours ago
Round tripIEconomy
Sep 2026
From$341*
Updated: 10 hours ago
Round tripIEconomy
Oct 2026
From$341*
Updated: 10 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $341
cmp-daily-histogram-bars-legend-max-price-aria-label $711
Displaying fares for August-2026
  • ONT–LEX, 08/16/26 – 08/23/26: From $554
    16

    Su

    AUG

  • ONT–LEX, 08/17/26 – 08/24/26: From $554
    17

    Mo

  • ONT–LEX, 08/18/26 – 08/25/26: From $445
    18

    Tu

  • ONT–LEX, 08/19/26 – 08/26/26: From $522
    19

    We

  • ONT–LEX, 08/20/26 – 08/27/26: From $559
    20

    Th

  • ONT–LEX, 08/21/26 – 08/28/26: From $554
    21

    Fr

  • ONT–LEX, 08/22/26 – 08/29/26: From $437
    22

    Sa

  • ONT–LEX, 08/23/26 – 08/30/26: From $484
    23

    Su

  • ONT–LEX, 08/24/26 – 08/31/26: From $530
    24

    Mo

  • ONT–LEX, 08/25/26 – 09/01/26: From $437
    25

    Tu

  • ONT–LEX, 08/26/26 – 09/02/26: From $437
    26

    We

  • ONT–LEX, 08/27/26 – 09/03/26: From $474
    27

    Th

  • ONT–LEX, 08/28/26 – 09/04/26: From $575
    28

    Fr

  • ONT–LEX, 08/29/26 – 09/05/26: From $394
    29

    Sa

  • ONT–LEX, 08/30/26 – 09/06/26: From $394
    30

    Su

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

    Mo

  • ONT–LEX, 09/01/26 – 09/08/26: From $474
    01

    Tu

    SEP

  • ONT–LEX, 09/02/26 – 09/09/26: From $394
    02

    We

  • ONT–LEX, 09/03/26 – 09/10/26: From $527
    03

    Th

  • ONT–LEX, 09/04/26 – 09/11/26: From $439
    04

    Fr

  • ONT–LEX, 09/05/26 – 09/12/26: From $350
    05

    Sa

  • ONT–LEX, 09/06/26 – 09/13/26: From $430
    06

    Su

  • ONT–LEX, 09/07/26 – 09/14/26: From $686
    07

    Mo

  • ONT–LEX, 09/08/26 – 09/15/26: From $418
    08

    Tu

  • ONT–LEX, 09/09/26 – 09/16/26: From $341
    09

    We

  • ONT–LEX, 09/10/26 – 09/17/26: From $350
    10

    Th

  • ONT–LEX, 09/11/26 – 09/18/26: From $575
    11

    Fr

  • ONT–LEX: cmp-view-offers-disclaimer. Find Offers
    12

    Sa

  • ONT–LEX: cmp-view-offers-disclaimer. Find Offers
    13

    Su

  • ONT–LEX: cmp-view-offers-disclaimer. Find Offers
    14

    Mo

  • ONT–LEX, 09/15/26 – 09/22/26: From $341
    15

    Tu

    • range$341-$711

    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 Lexington flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    Lexington (LEX)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    10/31/26 - 11/07/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 10 hours ago

    Ontario (ONT)to

    Lexington (LEX)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $341Fare 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 Ontario to Lexington

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