American Airlines flights from Ontario to Grand Junction

Recent searches for flights from Ontario to Grand Junction

Sep 2026
From$371*
Updated: 4 hours ago
Round tripIEconomy
Oct 2026
From$319*
Updated: 4 hours ago
Round tripIEconomy
Nov 2026
From$319*
Updated: 4 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $319
cmp-daily-histogram-bars-legend-max-price-aria-label $645
Displaying fares for September-2026
  • ONT–GJT, 09/11/26 – 09/18/26: From $607
    11

    Fr

    SEP

  • ONT–GJT, 09/12/26 – 09/19/26: From $393
    12

    Sa

  • ONT–GJT, 09/13/26 – 09/20/26: From $598
    13

    Su

  • ONT–GJT, 09/14/26 – 09/21/26: From $459
    14

    Mo

  • ONT–GJT, 09/15/26 – 09/22/26: From $393
    15

    Tu

  • ONT–GJT, 09/16/26 – 09/23/26: From $393
    16

    We

  • ONT–GJT, 09/17/26 – 09/24/26: From $437
    17

    Th

  • ONT–GJT, 09/18/26 – 09/25/26: From $576
    18

    Fr

  • ONT–GJT, 09/19/26 – 09/26/26: From $371
    19

    Sa

  • ONT–GJT, 09/20/26 – 09/27/26: From $645
    20

    Su

  • ONT–GJT, 09/21/26 – 09/28/26: From $531
    21

    Mo

  • ONT–GJT, 09/22/26 – 09/29/26: From $371
    22

    Tu

  • ONT–GJT, 09/23/26 – 09/30/26: From $371
    23

    We

  • ONT–GJT, 09/24/26 – 10/01/26: From $429
    24

    Th

  • ONT–GJT, 09/25/26 – 10/02/26: From $487
    25

    Fr

  • ONT–GJT, 09/26/26 – 10/03/26: From $371
    26

    Sa

  • ONT–GJT, 09/27/26 – 10/04/26: From $429
    27

    Su

  • ONT–GJT, 09/28/26 – 10/05/26: From $437
    28

    Mo

  • ONT–GJT, 09/29/26 – 10/06/26: From $396
    29

    Tu

  • ONT–GJT, 09/30/26 – 10/07/26: From $371
    30

    We

  • ONT–GJT, 10/01/26 – 10/08/26: From $407
    01

    Th

    OCT

  • ONT–GJT, 10/02/26 – 10/09/26: From $409
    02

    Fr

  • ONT–GJT, 10/03/26 – 10/10/26: From $404
    03

    Sa

  • ONT–GJT, 10/04/26 – 10/11/26: From $352
    04

    Su

  • ONT–GJT, 10/05/26 – 10/12/26: From $437
    05

    Mo

  • ONT–GJT, 10/06/26 – 10/13/26: From $418
    06

    Tu

  • ONT–GJT, 10/07/26 – 10/14/26: From $356
    07

    We

  • ONT–GJT, 10/08/26 – 10/15/26: From $319
    08

    Th

  • ONT–GJT: cmp-view-offers-disclaimer. Find Offers
    09

    Fr

  • ONT–GJT: cmp-view-offers-disclaimer. Find Offers
    10

    Sa

    • range$319-$645

    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 Grand Junction flights

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    keyboard_arrow_down

    Ontario (ONT)to

    Grand Junction (GJT)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    10/29/26 - 11/05/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    12/04/26 - 12/11/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    11/01/26 - 11/08/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    11/07/26 - 11/14/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    10/08/26 - 10/15/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 hours ago

    Ontario (ONT)to

    Grand Junction (GJT)
    10/13/26 - 10/20/26

    Round trip

    Economy

    from
    $319Fare subject to changes
    Updated: 4 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 Grand Junction

    Looking for lower fares on your trip from Ontario to Grand Junction? 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.
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    American Airlines flights from Ontario to Grand Junction