American Airlines flights from Greensboro to Ontario

Recent searches for flights from Greensboro to Ontario

Sep 2026
From$555*
Updated: 9 hours ago
Round tripIEconomy
Oct 2026
From$439*
Updated: 9 hours ago
Round tripIEconomy
Nov 2026
From$439*
Updated: 9 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $546
cmp-daily-histogram-bars-legend-max-price-aria-label $847
Displaying fares for September-2026
  • GSO–ONT, 09/09/26 – 09/16/26: From $619
    09

    We

    SEP

  • GSO–ONT, 09/10/26 – 09/17/26: From $847
    10

    Th

  • GSO–ONT, 09/11/26 – 09/18/26: From $693
    11

    Fr

  • GSO–ONT, 09/12/26 – 09/19/26: From $555
    12

    Sa

  • GSO–ONT, 09/13/26 – 09/20/26: From $693
    13

    Su

  • GSO–ONT, 09/14/26 – 09/21/26: From $693
    14

    Mo

  • GSO–ONT, 09/15/26 – 09/22/26: From $555
    15

    Tu

  • GSO–ONT, 09/16/26 – 09/23/26: From $555
    16

    We

  • GSO–ONT, 09/17/26 – 09/24/26: From $665
    17

    Th

  • GSO–ONT, 09/18/26 – 09/25/26: From $665
    18

    Fr

  • GSO–ONT, 09/19/26 – 09/26/26: From $614
    19

    Sa

  • GSO–ONT, 09/20/26 – 09/27/26: From $665
    20

    Su

  • GSO–ONT, 09/21/26 – 09/28/26: From $665
    21

    Mo

  • GSO–ONT, 09/22/26 – 09/29/26: From $555
    22

    Tu

  • GSO–ONT, 09/23/26 – 09/30/26: From $576
    23

    We

  • GSO–ONT, 09/24/26 – 10/01/26: From $617
    24

    Th

  • GSO–ONT, 09/25/26 – 10/02/26: From $617
    25

    Fr

  • GSO–ONT, 09/26/26 – 10/03/26: From $555
    26

    Sa

  • GSO–ONT, 09/27/26 – 10/04/26: From $617
    27

    Su

  • GSO–ONT, 09/28/26 – 10/05/26: From $617
    28

    Mo

  • GSO–ONT, 09/29/26 – 10/06/26: From $555
    29

    Tu

  • GSO–ONT, 09/30/26 – 10/07/26: From $555
    30

    We

  • GSO–ONT, 10/01/26 – 10/08/26: From $645
    01

    Th

    OCT

  • GSO–ONT, 10/02/26 – 10/09/26: From $571
    02

    Fr

  • GSO–ONT, 10/03/26 – 10/10/26: From $555
    03

    Sa

  • GSO–ONT, 10/04/26 – 10/11/26: From $693
    04

    Su

  • GSO–ONT, 10/05/26 – 10/12/26: From $571
    05

    Mo

  • GSO–ONT, 10/06/26 – 10/13/26: From $546
    06

    Tu

  • GSO–ONT, 10/07/26 – 10/14/26: From $546
    07

    We

  • GSO–ONT, 10/08/26 – 10/15/26: From $619
    08

    Th

    • range$546-$847

    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 Greensboro to Ontario flights

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    keyboard_arrow_down

    Greensboro (GSO)to

    Ontario (ONT)
    10/10/26 - 10/17/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    12/01/26 - 12/08/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    11/24/26 - 12/01/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 hours ago

    Greensboro (GSO)to

    Ontario (ONT)
    11/25/26 - 12/02/26

    Round trip

    Economy

    from
    $439Fare subject to changes
    Updated: 9 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 Greensboro to Ontario

    Looking for lower fares on your trip from Greensboro 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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    • 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 Greensboro to Ontario