Southwest® flights from Philadelphia to Denver from $145

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Low fares from Philadelphia to Denver

$

Philadelphia (PHL)to

Denver (DEN)
Depart: 12/08/2026

One-way

Basic

From
$145
Seen: 18 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 02/20/2027

One-way

Basic

From
$145
Seen: 5 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 02/03/2027

One-way

Basic

From
$145
Seen: 5 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 12/16/2026

One-way

Basic

From
$145
Seen: 16 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 01/20/2027

One-way

Basic

From
$145
Seen: 14 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 12/05/2026

One-way

Basic

From
$145
Seen: 9 hrs ago

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Explore flights from Philadelphia to Denver

Nov 2026
From$265*
Seen: 6 hrs ago
One Way/Basic
Dec 2026
From$145*
Seen: 18 hrs ago
One Way/Basic
Jan 2027
From$145*
Seen: 16 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $145
cmp-daily-histogram-bars-legend-max-price-aria-label $557
Displaying fares for November-2026
  • PHL–DEN, 11/12/2026: From $314
    12

    Thu

    NOV

  • PHL–DEN, 11/13/2026: From $314
    13

    Fri

  • PHL–DEN, 11/14/2026: From $265
    14

    Sat

  • PHL–DEN, 11/15/2026: From $314
    15

    Sun

  • PHL–DEN, 11/16/2026: From $314
    16

    Mon

  • PHL–DEN, 11/17/2026: From $265
    17

    Tue

  • PHL–DEN, 11/18/2026: From $265
    18

    Wed

  • PHL–DEN, 11/19/2026: From $314
    19

    Thu

  • PHL–DEN, 11/20/2026: From $314
    20

    Fri

  • PHL–DEN, 11/21/2026: From $265
    21

    Sat

  • PHL–DEN, 11/22/2026: From $314
    22

    Sun

  • PHL–DEN, 11/23/2026: From $314
    23

    Mon

  • PHL–DEN, 11/24/2026: From $265
    24

    Tue

  • PHL–DEN, 11/25/2026: From $265
    25

    Wed

  • PHL–DEN, 11/26/2026: From $314
    26

    Thu

  • PHL–DEN, 11/27/2026: From $314
    27

    Fri

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    28

    Sat

  • PHL–DEN, 11/29/2026: From $557
    29

    Sun

  • PHL–DEN, 11/30/2026: From $324
    30

    Mon

  • PHL–DEN, 12/01/2026: From $275
    01

    Tue

    DEC

  • PHL–DEN, 12/02/2026: From $155
    02

    Wed

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    03

    Thu

  • PHL–DEN, 12/04/2026: From $180
    04

    Fri

  • PHL–DEN, 12/05/2026: From $145
    05

    Sat

  • PHL–DEN, 12/06/2026: From $314
    06

    Sun

  • PHL–DEN, 12/07/2026: From $175
    07

    Mon

  • PHL–DEN, 12/08/2026: From $145
    08

    Tue

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    09

    Wed

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    10

    Thu

  • PHL–DEN, 12/11/2026: From $180
    11

    Fri

    • Range$145-$557

    *Fares displayed have been collected within the last 24 hours and may no longer be available at time of booking. Additional fees and charges for optional products and services may apply. Modifying this information may result in a different fare. To find the most updated fare, please visit Southwest.com. Fares listed are Basic, which are subject to additional terms and conditions.

    Flight Details

    Departing from:
    Philadelphia International Airport
    Arriving at:
    Denver International Airport
    Average flight time:
    4 hours 9 minutes
    Distance:
    1558 miles

    Questions we hear the most

    The average flight time from Philadelphia to Denver is 4 hours 9 minutes.
    There are 152 weekly flights from Philadelphia to Denver on Southwest Airlines.
    Yes, Southwest flies nonstop from Philadelphia to Denver 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Philadelphia to Denver once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly Philadelphia to Denver with Southwest, check out our Low Fare Calendar.
    You can rent a car at Denver International Airport book yours with your flight.
    Yes! Flights from Philadelphia to Denver—or from here or there to anywhere—can be changed with no change fees. Fare difference may apply.
    Check the status of your upcoming Southwest flight.
    Check out the Southwest Airlines® Help Center for answers about everything Southwest.

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