Southwest® flights from Denver to Philadelphia from $161

Promo Code

Low fares from Denver to Philadelphia

$

Denver (DEN)to

Philadelphia (PHL)
Depart: 10/27/2026

One-way

Basic

From
$161
Seen: 15 hrs ago

Denver (DEN)to

Philadelphia (PHL)
Depart: 10/17/2026

One-way

Basic

From
$161
Seen: 22 hrs ago

Denver (DEN)to

Philadelphia (PHL)
Depart: 10/05/2026

One-way

Basic

From
$161
Seen: 5 hrs ago

Denver (DEN)to

Philadelphia (PHL)
Depart: 11/04/2026

One-way

Basic

From
$161
Seen: 14 hrs ago

Denver (DEN)to

Philadelphia (PHL)
Depart: 10/10/2026

One-way

Basic

From
$161
Seen: 6 hrs ago

Denver (DEN)to

Philadelphia (PHL)
Depart: 10/21/2026

One-way

Basic

From
$161
Seen: 23 hrs ago

Looking for more low-fare flights?

Check out the Low Fare Calendar to find a fare that works for you. Just choose the month you want to depart and return, and we’ll show you the best fares available.

Find low fares

Explore flights from Denver to Philadelphia

Aug 2026
From$230*
Seen: 1 hour ago
One Way/Basic
Sep 2026
From$161*
Seen: 6 hrs ago
One Way/Basic
Oct 2026
From$161*
Seen: 8 hrs ago
One Way/Basic
cmp-daily-histogram-bars-legend-min-price-aria-label $161
cmp-daily-histogram-bars-legend-max-price-aria-label $301
Displaying fares for August-2026
  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    21

    Fri

    AUG

  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    22

    Sat

  • DEN–PHL, 08/23/2026: From $301
    23

    Sun

  • DEN–PHL, 08/24/2026: From $279
    24

    Mon

  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    25

    Tue

  • DEN–PHL, 08/26/2026: From $240
    26

    Wed

  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    27

    Thu

  • DEN–PHL, 08/28/2026: From $279
    28

    Fri

  • DEN–PHL, 08/29/2026: From $230
    29

    Sat

  • DEN–PHL, 08/30/2026: From $279
    30

    Sun

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

    Mon

  • DEN–PHL, 09/01/2026: From $230
    01

    Tue

    SEP

  • DEN–PHL, 09/02/2026: From $230
    02

    Wed

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

    Thu

  • DEN–PHL, 09/04/2026: From $279
    04

    Fri

  • DEN–PHL, 09/05/2026: From $172
    05

    Sat

  • DEN–PHL, 09/06/2026: From $172
    06

    Sun

  • DEN–PHL, 09/07/2026: From $289
    07

    Mon

  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    08

    Tue

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

    Wed

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

    Thu

  • DEN–PHL, 09/11/2026: From $172
    11

    Fri

  • DEN–PHL, 09/12/2026: From $161
    12

    Sat

  • DEN–PHL, 09/13/2026: From $194
    13

    Sun

  • DEN–PHL, 09/14/2026: From $194
    14

    Mon

  • DEN–PHL, 09/15/2026: From $171
    15

    Tue

  • DEN–PHL, 09/16/2026: From $171
    16

    Wed

  • DEN–PHL, 09/17/2026: From $209
    17

    Thu

  • DEN–PHL, 09/18/2026: From $173
    18

    Fri

  • DEN–PHL, 09/19/2026: From $171
    19

    Sat

  • DEN–PHL: cmp-view-offers-disclaimer. Find Offers
    20

    Sun

    • Range$161-$301

    *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:
    Denver International Airport
    Arriving at:
    Philadelphia International Airport
    Average flight time:
    3 hours 29 minutes
    Distance:
    1558 miles

    Route Information

    136† 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 Denver to Philadelphia is 3 hours 29 minutes.
    There are 136 weekly flights from Denver to Philadelphia on Southwest Airlines.
    Yes, Southwest flies nonstop from Denver to Philadelphia 2 times per day from Monday through Friday.
    Yes, Southwest flies nonstop from Denver to Philadelphia once per day on Saturdays and 2 times per day on Sundays.
    To find the lowest fares by day and time to fly Denver to Philadelphia with Southwest, check out our Low Fare Calendar.
    You can rent a car at Philadelphia International Airport book yours with your flight.
    Yes! Flights from Denver to Philadelphia—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.

    Explore Flights from Other Popular Origins

    Popular Flights from Denver