American Airlines flights from Philadelphia to Denver

Recent searches for flights from Philadelphia to Denver

Aug 2026
From$244*
Updated: 3 hours ago
Round tripIEconomy
Sep 2026
From$217*
Updated: 3 hours ago
Round tripIEconomy
Oct 2026
From$217*
Updated: 3 hours ago
Round tripIEconomy
cmp-daily-histogram-bars-legend-min-price-aria-label $217
cmp-daily-histogram-bars-legend-max-price-aria-label $557
Displaying fares for August-2026
  • PHL–DEN, 08/12/26 – 08/19/26: From $479
    12

    We

    AUG

  • PHL–DEN, 08/13/26 – 11/15/26: From $494
    13

    Th

  • PHL–DEN, 08/14/26 – 08/18/26: From $508
    14

    Fr

  • PHL–DEN, 08/15/26 – 08/31/26: From $365
    15

    Sa

  • PHL–DEN, 08/16/26 – 08/19/26: From $534
    16

    Su

  • PHL–DEN, 08/17/26 – 08/24/26: From $557
    17

    Mo

  • PHL–DEN, 08/18/26 – 08/25/26: From $459
    18

    Tu

  • PHL–DEN, 08/19/26 – 08/26/26: From $459
    19

    We

  • PHL–DEN, 08/20/26 – 08/27/26: From $534
    20

    Th

  • PHL–DEN, 08/21/26 – 08/26/26: From $508
    21

    Fr

  • PHL–DEN, 08/22/26 – 08/29/26: From $459
    22

    Sa

  • PHL–DEN, 08/23/26 – 08/30/26: From $534
    23

    Su

  • PHL–DEN, 08/24/26 – 08/31/26: From $414
    24

    Mo

  • PHL–DEN, 08/25/26 – 09/01/26: From $338
    25

    Tu

  • PHL–DEN, 08/26/26 – 09/02/26: From $338
    26

    We

  • PHL–DEN, 08/27/26 – 09/01/26: From $364
    27

    Th

  • PHL–DEN, 08/28/26 – 09/04/26: From $431
    28

    Fr

  • PHL–DEN, 08/29/26 – 09/05/26: From $338
    29

    Sa

  • PHL–DEN, 08/30/26 – 09/01/26: From $364
    30

    Su

  • PHL–DEN, 08/31/26 – 09/05/26: From $244
    31

    Mo

  • PHL–DEN, 09/01/26 – 09/08/26: From $334
    01

    Tu

    SEP

  • PHL–DEN, 09/02/26 – 09/09/26: From $217
    02

    We

  • PHL–DEN, 09/03/26 – 10/06/26: From $284
    03

    Th

  • PHL–DEN, 09/04/26 – 09/11/26: From $336
    04

    Fr

  • PHL–DEN, 09/05/26 – 09/12/26: From $217
    05

    Sa

  • PHL–DEN, 09/06/26 – 09/14/26: From $296
    06

    Su

  • PHL–DEN, 09/07/26 – 09/14/26: From $271
    07

    Mo

  • PHL–DEN, 09/08/26 – 09/15/26: From $217
    08

    Tu

  • PHL–DEN, 09/09/26 – 09/12/26: From $217
    09

    We

  • PHL–DEN, 09/10/26 – 09/12/26: From $244
    10

    Th

  • PHL–DEN, 09/11/26 – 09/19/26: From $269
    11

    Fr

    • range$217-$557

    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 Philadelphia to Denver flights

    $
    keyboard_arrow_down

    Philadelphia (PHL)to

    Denver (DEN)
    09/02/26 - 09/09/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    09/19/26 - 09/26/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    09/26/26 - 10/03/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    11/04/26 - 11/11/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    10/14/26 - 10/21/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    10/17/26 - 10/24/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    10/20/26 - 10/27/26

    Round trip

    Economy

    from
    $217Fare subject to changes
    Updated: 3 hours ago

    Philadelphia (PHL)to

    Denver (DEN)
    10/28/26 - 11/04/26

    Round trip

    Economy

    from
    $217Fare 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 Philadelphia to Denver

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