American Airlines flights from Buffalo to Chicago

Recent searches for flights from Buffalo to Chicago

Sep 2026
From$317*
Updated: 10 hours ago
Round tripIEconomy
Oct 2026
From$317*
Updated: 10 hours ago
Round tripIEconomy
Nov 2026
From$317*
Updated: 10 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $317
cmp-daily-histogram-bars-legend-max-price-aria-label $555
Displaying fares for September-2026
  • BUF–ORD, 09/03/26 – 09/05/26: From $523
    03

    Th

    SEP

  • BUF–ORD, 09/04/26 – 09/11/26: From $555
    04

    Fr

  • BUF–ORD, 09/05/26 – 09/12/26: From $491
    05

    Sa

  • BUF–ORD, 09/06/26 – 09/13/26: From $555
    06

    Su

  • BUF–ORD, 09/07/26 – 09/14/26: From $555
    07

    Mo

  • BUF–ORD, 09/08/26 – 09/15/26: From $491
    08

    Tu

  • BUF–ORD, 09/09/26 – 09/16/26: From $501
    09

    We

  • BUF–ORD, 09/10/26 – 09/15/26: From $523
    10

    Th

  • BUF–ORD, 09/11/26 – 09/18/26: From $528
    11

    Fr

  • BUF–ORD, 09/12/26 – 09/19/26: From $491
    12

    Sa

  • BUF–ORD, 09/13/26 – 09/20/26: From $528
    13

    Su

  • BUF–ORD, 09/14/26 – 09/21/26: From $528
    14

    Mo

  • BUF–ORD, 09/15/26 – 09/22/26: From $491
    15

    Tu

  • BUF–ORD, 09/16/26 – 09/23/26: From $491
    16

    We

  • BUF–ORD, 09/17/26 – 09/24/26: From $409
    17

    Th

  • BUF–ORD, 09/18/26 – 09/25/26: From $428
    18

    Fr

  • BUF–ORD, 09/19/26 – 09/26/26: From $404
    19

    Sa

  • BUF–ORD, 09/20/26 – 09/27/26: From $475
    20

    Su

  • BUF–ORD, 09/21/26 – 09/28/26: From $409
    21

    Mo

  • BUF–ORD, 09/22/26 – 09/29/26: From $404
    22

    Tu

  • BUF–ORD, 09/23/26 – 09/30/26: From $404
    23

    We

  • BUF–ORD, 09/24/26 – 10/01/26: From $317
    24

    Th

  • BUF–ORD, 09/25/26 – 10/02/26: From $335
    25

    Fr

  • BUF–ORD, 09/26/26 – 10/03/26: From $317
    26

    Sa

  • BUF–ORD, 09/27/26 – 10/04/26: From $434
    27

    Su

  • BUF–ORD, 09/28/26 – 10/05/26: From $327
    28

    Mo

  • BUF–ORD, 09/29/26 – 10/06/26: From $317
    29

    Tu

  • BUF–ORD, 09/30/26 – 10/07/26: From $317
    30

    We

  • BUF–ORD, 10/01/26 – 10/03/26: From $317
    01

    Th

    OCT

  • BUF–ORD: cmp-view-offers-disclaimer. Find Offers
    02

    Fr

    • range$317-$555

    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 Buffalo to Chicago flights

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    Buffalo (BUF)to

    Chicago (ORD)
    10/06/26 - 10/13/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    10/07/26 - 10/14/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    10/21/26 - 10/28/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    10/24/26 - 10/31/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    10/26/26 - 11/02/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    09/24/26 - 10/01/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 hours ago

    Buffalo (BUF)to

    Chicago (ORD)
    11/09/26 - 11/16/26

    Round trip

    Economy

    from
    $317Fare subject to changes
    Updated: 10 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 Buffalo to Chicago

    Looking for lower fares on your trip from Buffalo to Chicago? 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 Buffalo to Chicago