American Airlines flights from Indianapolis to Ontario

Recent searches for flights from Indianapolis to Ontario

Sep 2026
From$377*
Updated: 11 hours ago
Round tripIEconomy
Oct 2026
From$377*
Updated: 11 hours ago
Round tripIEconomy
Nov 2026
From$377*
Updated: 11 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $377
cmp-daily-histogram-bars-legend-max-price-aria-label $1.1K
Displaying fares for September-2026
  • IND–ONT, 09/09/26 – 09/16/26: From $1,071
    09

    We

    SEP

  • IND–ONT, 09/10/26 – 09/17/26: From $1,077
    10

    Th

  • IND–ONT, 09/11/26 – 09/18/26: From $1,077
    11

    Fr

  • IND–ONT, 09/12/26 – 09/19/26: From $1,062
    12

    Sa

  • IND–ONT, 09/13/26 – 09/20/26: From $1,077
    13

    Su

  • IND–ONT, 09/14/26 – 09/16/26: From $808
    14

    Mo

  • IND–ONT, 09/15/26 – 09/22/26: From $832
    15

    Tu

  • IND–ONT, 09/16/26 – 09/23/26: From $832
    16

    We

  • IND–ONT, 09/17/26 – 09/24/26: From $857
    17

    Th

  • IND–ONT, 09/18/26 – 09/25/26: From $857
    18

    Fr

  • IND–ONT, 09/19/26 – 09/26/26: From $832
    19

    Sa

  • IND–ONT, 09/20/26 – 09/27/26: From $857
    20

    Su

  • IND–ONT, 09/21/26 – 09/26/26: From $707
    21

    Mo

  • IND–ONT, 09/22/26 – 09/29/26: From $492
    22

    Tu

  • IND–ONT, 09/23/26 – 09/30/26: From $492
    23

    We

  • IND–ONT, 09/24/26 – 10/01/26: From $492
    24

    Th

  • IND–ONT, 09/25/26 – 10/02/26: From $509
    25

    Fr

  • IND–ONT, 09/26/26 – 10/03/26: From $492
    26

    Sa

  • IND–ONT, 09/27/26 – 10/04/26: From $577
    27

    Su

  • IND–ONT, 09/28/26 – 10/05/26: From $618
    28

    Mo

  • IND–ONT, 09/29/26 – 10/06/26: From $377
    29

    Tu

  • IND–ONT, 09/30/26 – 10/07/26: From $377
    30

    We

  • IND–ONT, 10/01/26 – 10/08/26: From $394
    01

    Th

    OCT

  • IND–ONT, 10/02/26 – 10/09/26: From $430
    02

    Fr

  • IND–ONT, 10/03/26 – 10/10/26: From $377
    03

    Sa

  • IND–ONT, 10/04/26 – 10/11/26: From $517
    04

    Su

  • IND–ONT, 10/05/26 – 10/12/26: From $394
    05

    Mo

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

    Tu

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

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

    Th

    • range$377-$1,077

    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 Indianapolis to Ontario flights

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    keyboard_arrow_down

    Indianapolis (IND)to

    Ontario (ONT)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

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

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

    Ontario (ONT)
    12/03/26 - 12/10/26

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

    Ontario (ONT)
    11/02/26 - 11/09/26

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

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

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

    Ontario (ONT)
    11/09/26 - 11/16/26

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

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

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 hours ago

    Indianapolis (IND)to

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

    Round trip

    Economy

    from
    $377Fare subject to changes
    Updated: 11 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 Indianapolis to Ontario

    Looking for lower fares on your trip from Indianapolis 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

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    American Airlines flights from Indianapolis to Ontario