American Airlines flights from Ontario to Lisbon

Recent searches for flights from Ontario to Lisbon

Aug 2026
From$1,067*
Updated: 7 hours ago
Round tripIEconomy
Sep 2026
From$1,052*
Updated: 7 hours ago
Round tripIEconomy
Oct 2026
From$756*
Updated: 7 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.1K
cmp-daily-histogram-bars-legend-max-price-aria-label $2.0K
Displaying fares for August-2026
  • ONT–LIS, 08/14/26 – 08/21/26: From $1,135
    14

    Fr

    AUG

  • ONT–LIS, 08/15/26 – 08/22/26: From $1,199
    15

    Sa

  • ONT–LIS, 08/16/26 – 08/23/26: From $1,414
    16

    Su

  • ONT–LIS, 08/17/26 – 08/24/26: From $1,153
    17

    Mo

  • ONT–LIS, 08/18/26 – 08/25/26: From $1,075
    18

    Tu

  • ONT–LIS, 08/19/26 – 08/26/26: From $1,067
    19

    We

  • ONT–LIS, 08/20/26 – 08/27/26: From $1,127
    20

    Th

  • ONT–LIS, 08/21/26 – 08/28/26: From $1,135
    21

    Fr

  • ONT–LIS, 08/22/26 – 08/29/26: From $1,318
    22

    Sa

  • ONT–LIS, 08/23/26 – 08/30/26: From $1,521
    23

    Su

  • ONT–LIS, 08/24/26 – 08/31/26: From $1,260
    24

    Mo

  • ONT–LIS, 08/25/26 – 09/01/26: From $1,196
    25

    Tu

  • ONT–LIS, 08/26/26 – 09/02/26: From $1,196
    26

    We

  • ONT–LIS, 08/27/26 – 09/03/26: From $1,258
    27

    Th

  • ONT–LIS, 08/28/26 – 09/04/26: From $1,258
    28

    Fr

  • ONT–LIS, 08/29/26 – 09/05/26: From $1,318
    29

    Sa

  • ONT–LIS, 08/30/26 – 09/06/26: From $1,705
    30

    Su

  • ONT–LIS, 08/31/26 – 09/07/26: From $1,899
    31

    Mo

  • ONT–LIS, 09/01/26 – 09/08/26: From $1,188
    01

    Tu

    SEP

  • ONT–LIS, 09/02/26 – 09/09/26: From $1,793
    02

    We

  • ONT–LIS, 09/03/26 – 09/10/26: From $1,863
    03

    Th

  • ONT–LIS, 09/04/26 – 09/11/26: From $1,457
    04

    Fr

  • ONT–LIS, 09/05/26 – 09/12/26: From $1,969
    05

    Sa

  • ONT–LIS, 09/06/26 – 09/13/26: From $1,874
    06

    Su

  • ONT–LIS, 09/07/26 – 09/14/26: From $1,274
    07

    Mo

  • ONT–LIS, 09/08/26 – 09/15/26: From $1,214
    08

    Tu

  • ONT–LIS, 09/09/26 – 09/16/26: From $1,463
    09

    We

  • ONT–LIS, 09/10/26 – 09/17/26: From $1,661
    10

    Th

  • ONT–LIS, 09/11/26 – 09/18/26: From $2,025
    11

    Fr

  • ONT–LIS, 09/12/26 – 09/19/26: From $1,235
    12

    Sa

  • ONT–LIS, 09/13/26 – 09/20/26: From $1,849
    13

    Su

    • range$1,067-$2,025

    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 Lisbon flights

    $
    keyboard_arrow_down

    Ontario (ONT)to

    Lisbon (LIS)
    12/09/26 - 12/16/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    11/16/26 - 11/23/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    10/26/26 - 11/02/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    11/09/26 - 11/16/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    12/08/26 - 12/15/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $756Fare subject to changes
    Updated: 7 hours ago

    Ontario (ONT)to

    Lisbon (LIS)
    11/11/26 - 11/18/26

    Round trip

    Economy

    from
    $764Fare subject to changes
    Updated: 7 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 Lisbon

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