Southwest® flights from Philadelphia to Denver from $161

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Low fares from Philadelphia to Denver

$

Philadelphia (PHL)to

Denver (DEN)
Depart: 09/05/2026

One-way

Basic

From
$161
Seen: 4 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 09/11/2026

One-way

Basic

From
$161
Seen: 17 minutes ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 10/30/2026

One-way

Basic

From
$161
Seen: 2 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 11/04/2026

One-way

Basic

From
$172
Seen: 21 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 10/13/2026

One-way

Basic

From
$172
Seen: 6 hrs ago

Philadelphia (PHL)to

Denver (DEN)
Depart: 10/03/2026

One-way

Basic

From
$172
Seen: 5 hrs ago

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Explore flights from Philadelphia to Denver

Aug 2026
From$173*
Seen: 7 hrs ago
One Way/Basic
Sep 2026
From$161*
Seen: 4 hrs ago
One Way/Basic
Oct 2026
From$161*
Seen: 2 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $172
cmp-daily-histogram-bars-legend-max-price-aria-label $327
Displaying fares for August-2026
  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    02

    Sun

    AUG

  • PHL–DEN, 08/03/2026: From $289
    03

    Mon

  • PHL–DEN, 08/04/2026: From $245
    04

    Tue

  • PHL–DEN, 08/05/2026: From $240
    05

    Wed

  • PHL–DEN, 08/06/2026: From $289
    06

    Thu

  • PHL–DEN, 08/07/2026: From $289
    07

    Fri

  • PHL–DEN, 08/08/2026: From $311
    08

    Sat

  • PHL–DEN, 08/09/2026: From $327
    09

    Sun

  • PHL–DEN, 08/10/2026: From $279
    10

    Mon

  • PHL–DEN, 08/11/2026: From $240
    11

    Tue

  • PHL–DEN, 08/12/2026: From $240
    12

    Wed

  • PHL–DEN, 08/13/2026: From $279
    13

    Thu

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    14

    Fri

  • PHL–DEN, 08/15/2026: From $230
    15

    Sat

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    16

    Sun

  • PHL–DEN, 08/17/2026: From $256
    17

    Mon

  • PHL–DEN, 08/18/2026: From $230
    18

    Tue

  • PHL–DEN, 08/19/2026: From $230
    19

    Wed

  • PHL–DEN, 08/20/2026: From $256
    20

    Thu

  • PHL–DEN, 08/21/2026: From $256
    21

    Fri

  • PHL–DEN, 08/22/2026: From $230
    22

    Sat

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    23

    Sun

  • PHL–DEN, 08/24/2026: From $173
    24

    Mon

  • PHL–DEN, 08/25/2026: From $173
    25

    Tue

  • PHL–DEN, 08/26/2026: From $173
    26

    Wed

  • PHL–DEN, 08/27/2026: From $173
    27

    Thu

  • PHL–DEN, 08/28/2026: From $219
    28

    Fri

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

    Sat

  • PHL–DEN, 08/30/2026: From $239
    30

    Sun

  • PHL–DEN, 08/31/2026: From $173
    31

    Mon

  • PHL–DEN, 09/01/2026: From $172
    01

    Tue

    SEP

    • Range$172-$327

    *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

    Route Information

    152† Weekly flights
    • 2‡ Nonstop flights per day Monday through Friday
    • 1‡ Nonstop flight on Saturday
    • 2‡ Nonstop flights on Sunday

    † Weekly flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025. Note: route may not operate every day of the week.

    ‡ Nonstop flights based on DOT published scheduled average flights Monday through Sunday between 9/1/2025 and 9/30/2025.

    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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