American Airlines flights from Ontario to Barcelona

Recent searches for flights from Ontario to Barcelona

Aug 2026
From$1,234*
Updated: 3 hours ago
Round tripIEconomy
Sep 2026
From$873*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$873*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.2K
cmp-daily-histogram-bars-legend-max-price-aria-label $1.8K
Displaying fares for August-2026
  • ONT–BCN, 08/07/26 – 08/14/26: From $1,479
    07

    Fr

    AUG

  • ONT–BCN, 08/08/26 – 08/15/26: From $1,533
    08

    Sa

  • ONT–BCN, 08/09/26 – 08/16/26: From $1,483
    09

    Su

  • ONT–BCN, 08/10/26 – 08/17/26: From $1,483
    10

    Mo

  • ONT–BCN, 08/11/26 – 08/18/26: From $1,413
    11

    Tu

  • ONT–BCN, 08/12/26 – 08/19/26: From $1,234
    12

    We

  • ONT–BCN, 08/13/26 – 08/20/26: From $1,284
    13

    Th

  • ONT–BCN, 08/14/26 – 08/21/26: From $1,284
    14

    Fr

  • ONT–BCN, 08/15/26 – 08/22/26: From $1,344
    15

    Sa

  • ONT–BCN, 08/16/26 – 08/23/26: From $1,294
    16

    Su

  • ONT–BCN, 08/17/26 – 08/24/26: From $1,294
    17

    Mo

  • ONT–BCN, 08/18/26 – 08/25/26: From $1,234
    18

    Tu

  • ONT–BCN, 08/19/26 – 08/26/26: From $1,234
    19

    We

  • ONT–BCN, 08/20/26 – 08/27/26: From $1,419
    20

    Th

  • ONT–BCN, 08/21/26 – 08/28/26: From $1,419
    21

    Fr

  • ONT–BCN, 08/22/26 – 08/29/26: From $1,479
    22

    Sa

  • ONT–BCN, 08/23/26 – 08/30/26: From $1,419
    23

    Su

  • ONT–BCN, 08/24/26 – 08/31/26: From $1,419
    24

    Mo

  • ONT–BCN, 08/25/26 – 09/01/26: From $1,359
    25

    Tu

  • ONT–BCN, 08/26/26 – 09/02/26: From $1,538
    26

    We

  • ONT–BCN, 08/27/26 – 09/03/26: From $1,608
    27

    Th

  • ONT–BCN, 08/28/26 – 09/04/26: From $1,608
    28

    Fr

  • ONT–BCN, 08/29/26 – 09/05/26: From $1,538
    29

    Sa

  • ONT–BCN, 08/30/26 – 09/06/26: From $1,571
    30

    Su

  • ONT–BCN, 08/31/26 – 09/07/26: From $1,778
    31

    Mo

  • ONT–BCN, 09/01/26 – 09/08/26: From $1,336
    01

    Tu

    SEP

  • ONT–BCN, 09/02/26 – 09/09/26: From $1,426
    02

    We

  • ONT–BCN, 09/03/26 – 09/10/26: From $1,598
    03

    Th

  • ONT–BCN, 09/04/26 – 09/11/26: From $1,329
    04

    Fr

  • ONT–BCN, 09/05/26 – 09/12/26: From $1,756
    05

    Sa

  • ONT–BCN, 09/06/26 – 09/13/26: From $1,526
    06

    Su

    • range$1,234-$1,778

    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 Barcelona flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    Barcelona (BCN)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    09/29/26 - 10/06/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    11/10/26 - 11/17/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    11/03/26 - 11/10/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $873Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    11/18/26 - 11/25/26

    Round trip

    Economy

    from
    $874Fare subject to changes
    Updated: 3 hours ago

    Ontario (ONT)to

    Barcelona (BCN)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $878Fare subject to changes
    Updated: 3 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 Barcelona

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