American Airlines flights from Ontario to Lexington

Recent searches for flights from Ontario to Lexington

Sep 2026
From$380*
Updated: 11 minutes ago
Round tripIEconomy
Oct 2026
From$341*
Updated: 11 minutes ago
Round tripIEconomy
Nov 2026
From$341*
Updated: 11 minutes ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $380
cmp-daily-histogram-bars-legend-max-price-aria-label $1.1K
Displaying fares for September-2026
  • ONT–LEX, 09/04/26 – 09/11/26: From $575
    04

    Fr

    SEP

  • ONT–LEX, 09/05/26 – 09/12/26: From $450
    05

    Sa

  • ONT–LEX, 09/06/26 – 09/13/26: From $589
    06

    Su

  • ONT–LEX, 09/07/26 – 09/14/26: From $756
    07

    Mo

  • ONT–LEX, 09/08/26 – 09/15/26: From $933
    08

    Tu

  • ONT–LEX, 09/09/26 – 09/16/26: From $445
    09

    We

  • ONT–LEX, 09/10/26 – 09/17/26: From $554
    10

    Th

  • ONT–LEX, 09/11/26 – 09/18/26: From $554
    11

    Fr

  • ONT–LEX, 09/12/26 – 09/19/26: From $437
    12

    Sa

  • ONT–LEX, 09/13/26 – 09/20/26: From $612
    13

    Su

  • ONT–LEX, 09/14/26 – 09/21/26: From $642
    14

    Mo

  • ONT–LEX, 09/15/26 – 09/22/26: From $469
    15

    Tu

  • ONT–LEX, 09/16/26 – 09/23/26: From $437
    16

    We

  • ONT–LEX, 09/17/26 – 09/24/26: From $1,132
    17

    Th

  • ONT–LEX, 09/18/26 – 09/25/26: From $1,035
    18

    Fr

  • ONT–LEX, 09/19/26 – 09/26/26: From $424
    19

    Sa

  • ONT–LEX, 09/20/26 – 09/27/26: From $540
    20

    Su

  • ONT–LEX, 09/21/26 – 09/28/26: From $626
    21

    Mo

  • ONT–LEX, 09/22/26 – 09/29/26: From $394
    22

    Tu

  • ONT–LEX, 09/23/26 – 09/30/26: From $394
    23

    We

  • ONT–LEX, 09/24/26 – 10/01/26: From $611
    24

    Th

  • ONT–LEX, 09/25/26 – 10/02/26: From $525
    25

    Fr

  • ONT–LEX, 09/26/26 – 10/03/26: From $402
    26

    Sa

  • ONT–LEX, 09/27/26 – 10/04/26: From $532
    27

    Su

  • ONT–LEX, 09/28/26 – 10/05/26: From $458
    28

    Mo

  • ONT–LEX, 09/29/26 – 10/06/26: From $380
    29

    Tu

  • ONT–LEX, 09/30/26 – 10/07/26: From $417
    30

    We

  • ONT–LEX, 10/01/26 – 10/08/26: From $424
    01

    Th

    OCT

  • ONT–LEX: cmp-view-offers-disclaimer. Find Offers
    02

    Fr

  • ONT–LEX: cmp-view-offers-disclaimer. Find Offers
    03

    Sa

    • range$380-$1,132

    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: 11 minutes ago

    Ontario (ONT)to

    Lexington (LEX)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

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

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

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

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

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

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

    Lexington (LEX)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

    Lexington (LEX)
    11/25/26 - 12/02/26

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 minutes ago

    Ontario (ONT)to

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

    Round trip

    Economy

    from
    $341Fare subject to changes
    Updated: 11 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 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

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    • 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