Flights from Philadelphia (PHL) to Denver (DEN) on Alaska Airlines

Lowest fares from Philadelphia to Denver

Nov 2026
From$325*
Seen: 17 hours ago
Flight Type One Way|Saver
Dec 2026
From$338*
Seen: 17 hours ago
Flight Type One Way|Saver
Jan 2027
From$402*
Seen: 17 hours ago
Flight Type One Way|Saver
cmp-daily-histogram-bars-legend-min-price-aria-label $325
cmp-daily-histogram-bars-legend-max-price-aria-label $1.5K
Displaying fares for November-2026
  • PHL–DEN, Nov 11, 2026: From $325
    11

    We

    NOV

  • PHL–DEN, Nov 12, 2026: From $374
    12

    Th

  • PHL–DEN, Nov 13, 2026: From $623
    13

    Fr

  • PHL–DEN, Nov 14, 2026: From $623
    14

    Sa

  • PHL–DEN, Nov 15, 2026: From $623
    15

    Su

  • PHL–DEN, Nov 16, 2026: From $623
    16

    Mo

  • PHL–DEN, Nov 17, 2026: From $603
    17

    Tu

  • PHL–DEN, Nov 18, 2026: From $603
    18

    We

  • PHL–DEN, Nov 19, 2026: From $603
    19

    Th

  • PHL–DEN, Nov 20, 2026: From $608
    20

    Fr

  • PHL–DEN, Nov 21, 2026: From $608
    21

    Sa

  • PHL–DEN, Nov 22, 2026: From $608
    22

    Su

  • PHL–DEN, Nov 23, 2026: From $608
    23

    Mo

  • PHL–DEN, Nov 24, 2026: From $932
    24

    Tu

  • PHL–DEN, Nov 25, 2026: From $932
    25

    We

  • PHL–DEN: cmp-view-offers-disclaimer. Find Offers
    26

    Th

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

    Fr

  • PHL–DEN, Nov 28, 2026: From $1,098
    28

    Sa

  • PHL–DEN, Nov 29, 2026: From $1,513
    29

    Su

  • PHL–DEN, Nov 30, 2026: From $1,356
    30

    Mo

  • PHL–DEN, Dec 1, 2026: From $716
    01

    Tu

    DEC

  • PHL–DEN, Dec 2, 2026: From $391
    02

    We

  • PHL–DEN, Dec 3, 2026: From $422
    03

    Th

  • PHL–DEN, Dec 4, 2026: From $422
    04

    Fr

  • PHL–DEN, Dec 5, 2026: From $391
    05

    Sa

  • PHL–DEN, Dec 6, 2026: From $493
    06

    Su

  • PHL–DEN, Dec 7, 2026: From $536
    07

    Mo

  • PHL–DEN, Dec 8, 2026: From $391
    08

    Tu

  • PHL–DEN, Dec 9, 2026: From $391
    09

    We

  • PHL–DEN, Dec 10, 2026: From $348
    10

    Th

    • Range$325-$1,513

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    One-way low-fare flights Philadelphia to Denver.*

    $
    keyboard_arrow_down
    One-way low-fare flights Philadelphia to Denver.*
    From
    To
    Fare Type
    Dates
    Price
    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Nov 11, 2026

    From

    $325

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 15, 2026

    From

    $338

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 12, 2026

    From

    $338

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 16, 2026

    From

    $338

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 25, 2026

    From

    $343

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 10, 2026

    From

    $348

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 11, 2026

    From

    $348

    Seen: 17 hours ago

    Philadelphia (PHL)Denver (DEN)One-way
    |
    Saver    		Depart: Dec 14, 2026

    From

    $348

    Seen: 17 hours ago

    *Displayed prices have been available within the past 24 hours and may not be available at the time of booking. Fares listed may be Saver fares, which is our most restrictive fare option and subject to additional restrictions. For roundtrip journeys, the price displayed—available within the past 24 hours—is the aggregate of the lowest available fare each way. Additional baggage charges and fees for optional products and services may apply. Other terms and conditions may apply.

    Frequently Asked Questions on flights from Philadelphia (PHL) to Denver (DEN)

    When is the best time to book a flight from Philadelphia to Denver?

    Want to find the lowest fares by day and time flying from Philadelphia to Denver on Alaska Airlines or Hawaiian Airlines? Check out our flight search widget.

    Can I earn points on my flight to Denver?

    Yes, with Atmosâ„¢ Rewards you can earn points on flights to 1000+ destinations worldwide through the growing network of Alaska and Hawaiian Airlines. Not an Atmosâ„¢ Rewards member yet? Learn more and join today.

    Can I rent a car when I arrive at Denver International Airport?

    Yes, you can rent a car at Denver International Airport. Check availability and book now

    Where can I find the status of my flight to Denver?

    You can check the status of your upcoming Alaska Airlines flight on our flight schedule page.

    Where can I find answers to questions about flying with Alaska Airlines?

    Visit the Alaska Airlines Help Center to quickly browse our help pages by category to find the information you need.

    Can I change or cancel my Alaska Airlines flight to Denver?

    Yes, you can review, modify, or cancel a reservation from our Manage Your Reservation tool. You can learn more about our policy for changing or cancelling a reservation here.Â