American Airlines flights from Chicago to Buenos Aires

Recent searches for flights from Chicago to Buenos Aires

Sep 2026
From$1,150*
Updated: 1 hour ago
Round tripIEconomy
Oct 2026
From$1,212*
Updated: 1 hour ago
Round tripIEconomy
Nov 2026
From$1,150*
Updated: 1 hour ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $1.2K
cmp-daily-histogram-bars-legend-max-price-aria-label $2.1K
Displaying fares for September-2026
  • ORD–EZE: cmp-view-offers-disclaimer. Find Offers
    04

    Fr

    SEP

  • ORD–EZE, 09/05/26 – 09/12/26: From $1,767
    05

    Sa

  • ORD–EZE, 09/06/26 – 09/13/26: From $1,487
    06

    Su

  • ORD–EZE, 09/07/26 – 09/14/26: From $1,150
    07

    Mo

  • ORD–EZE, 09/08/26 – 09/15/26: From $1,150
    08

    Tu

  • ORD–EZE, 09/09/26 – 09/16/26: From $1,407
    09

    We

  • ORD–EZE, 09/10/26 – 09/17/26: From $1,612
    10

    Th

  • ORD–EZE, 09/11/26 – 09/18/26: From $2,060
    11

    Fr

  • ORD–EZE, 09/12/26 – 09/19/26: From $1,674
    12

    Sa

  • ORD–EZE, 09/13/26 – 09/20/26: From $1,267
    13

    Su

  • ORD–EZE, 09/14/26 – 09/21/26: From $1,150
    14

    Mo

  • ORD–EZE, 09/15/26 – 09/22/26: From $1,407
    15

    Tu

  • ORD–EZE, 09/16/26 – 09/23/26: From $1,407
    16

    We

  • ORD–EZE, 09/17/26 – 09/24/26: From $1,491
    17

    Th

  • ORD–EZE, 09/18/26 – 09/25/26: From $1,604
    18

    Fr

  • ORD–EZE, 09/19/26 – 09/26/26: From $1,487
    19

    Sa

  • ORD–EZE, 09/20/26 – 09/27/26: From $1,329
    20

    Su

  • ORD–EZE, 09/21/26 – 09/28/26: From $1,767
    21

    Mo

  • ORD–EZE, 09/22/26 – 09/29/26: From $1,407
    22

    Tu

  • ORD–EZE, 09/23/26 – 09/30/26: From $1,329
    23

    We

  • ORD–EZE, 09/24/26 – 10/01/26: From $1,411
    24

    Th

  • ORD–EZE, 09/25/26 – 10/02/26: From $1,612
    25

    Fr

  • ORD–EZE, 09/26/26 – 10/03/26: From $2,060
    26

    Sa

  • ORD–EZE, 09/27/26 – 10/04/26: From $1,487
    27

    Su

  • ORD–EZE, 09/28/26 – 10/05/26: From $1,267
    28

    Mo

  • ORD–EZE, 09/29/26 – 10/06/26: From $1,267
    29

    Tu

  • ORD–EZE, 09/30/26 – 10/07/26: From $1,278
    30

    We

  • ORD–EZE, 10/01/26 – 10/08/26: From $1,549
    01

    Th

    OCT

  • ORD–EZE, 10/02/26 – 10/09/26: From $1,678
    02

    Fr

  • ORD–EZE, 10/03/26 – 10/10/26: From $1,771
    03

    Sa

    • range$1,150-$2,060

    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 Chicago to Buenos Aires flights

    $
    keyboard_arrow_down

    Chicago (ORD)to

    Buenos Aires (EZE)
    09/07/26 - 09/14/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    09/08/26 - 09/15/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    12/07/26 - 12/14/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    12/02/26 - 12/09/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    12/03/26 - 12/10/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    11/14/26 - 11/21/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    11/16/26 - 11/23/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour ago

    Chicago (ORD)to

    Buenos Aires (EZE)
    11/17/26 - 11/24/26

    Round trip

    Economy

    from
    $1,150Fare subject to changes
    Updated: 1 hour 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 Chicago to Buenos Aires

    Looking for lower fares on your trip from Chicago to Buenos Aires? 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 Chicago to Buenos Aires