American Airlines flights from Denver to Buffalo

Recent searches for flights from Denver to Buffalo

Aug 2026
From$407*
Updated: 12 hours ago
Round tripIEconomy
Sep 2026
From$394*
Updated: 12 hours ago
Round tripIEconomy
Oct 2026
From$407*
Updated: 12 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $407
cmp-daily-histogram-bars-legend-max-price-aria-label $1.1K
Displaying fares for August-2026
  • DEN–BUF, 08/02/26 – 08/09/26: From $1,057
    02

    Su

    AUG

  • DEN–BUF, 08/03/26 – 08/10/26: From $887
    03

    Mo

  • DEN–BUF, 08/04/26 – 08/11/26: From $747
    04

    Tu

  • DEN–BUF, 08/05/26 – 08/12/26: From $797
    05

    We

  • DEN–BUF, 08/06/26 – 08/13/26: From $889
    06

    Th

  • DEN–BUF, 08/07/26 – 08/14/26: From $852
    07

    Fr

  • DEN–BUF, 08/08/26 – 08/15/26: From $745
    08

    Sa

  • DEN–BUF, 08/09/26 – 08/16/26: From $818
    09

    Su

  • DEN–BUF, 08/10/26 – 08/17/26: From $818
    10

    Mo

  • DEN–BUF, 08/11/26 – 08/18/26: From $745
    11

    Tu

  • DEN–BUF, 08/12/26 – 08/19/26: From $745
    12

    We

  • DEN–BUF, 08/13/26 – 08/20/26: From $818
    13

    Th

  • DEN–BUF, 08/14/26 – 08/21/26: From $818
    14

    Fr

  • DEN–BUF, 08/15/26 – 08/22/26: From $501
    15

    Sa

  • DEN–BUF, 08/16/26 – 08/23/26: From $639
    16

    Su

  • DEN–BUF, 08/17/26 – 08/24/26: From $501
    17

    Mo

  • DEN–BUF, 08/18/26 – 08/25/26: From $501
    18

    Tu

  • DEN–BUF, 08/19/26 – 08/26/26: From $501
    19

    We

  • DEN–BUF, 08/20/26 – 08/27/26: From $501
    20

    Th

  • DEN–BUF, 08/21/26 – 08/28/26: From $523
    21

    Fr

  • DEN–BUF, 08/22/26 – 08/29/26: From $407
    22

    Sa

  • DEN–BUF, 08/23/26 – 08/30/26: From $519
    23

    Su

  • DEN–BUF, 08/24/26 – 08/31/26: From $407
    24

    Mo

  • DEN–BUF, 08/25/26 – 09/01/26: From $407
    25

    Tu

  • DEN–BUF, 08/26/26 – 09/02/26: From $407
    26

    We

  • DEN–BUF, 08/27/26 – 09/03/26: From $407
    27

    Th

  • DEN–BUF, 08/28/26 – 09/04/26: From $451
    28

    Fr

  • DEN–BUF: cmp-view-offers-disclaimer. Find Offers
    29

    Sa

  • DEN–BUF: cmp-view-offers-disclaimer. Find Offers
    30

    Su

  • DEN–BUF: cmp-view-offers-disclaimer. Find Offers
    31

    Mo

  • DEN–BUF, 09/01/26 – 09/08/26: From $407
    01

    Tu

    SEP

    • range$407-$1,057

    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 Denver to Buffalo flights

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    Denver (DEN)to

    Buffalo (BUF)
    09/05/26 - 09/12/26

    Round trip

    Economy

    from
    $394Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    10/03/26 - 10/10/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    10/22/26 - 10/29/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    10/27/26 - 11/03/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    09/12/26 - 09/19/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    09/15/26 - 09/22/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 hours ago

    Denver (DEN)to

    Buffalo (BUF)
    09/16/26 - 09/23/26

    Round trip

    Economy

    from
    $407Fare subject to changes
    Updated: 12 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 Denver to Buffalo

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