Flights from Portland, OR to Denver, CO

Promo Code

Best Deals on Flights From Portland, OR (PDX) to Denver, CO (DEN)

Sep 2026
from$148*
Last seen: 15 hours ago
One-way/Economy
Oct 2026
from$49*
Last seen: 16 hours ago
One-way/Economy
Nov 2026
from$76*
Last seen: 17 hours ago
One-way/Economy
cmp-daily-histogram-bars-legend-min-price-aria-label $133
cmp-daily-histogram-bars-legend-max-price-aria-label $214
Displaying fares for September-2026
  • PDX–DEN: cmp-view-offers-disclaimer. Find Offers
    13

    Sun

    SEP

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

    Mon

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    15

    Tue

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    16

    Wed

  • PDX–DEN, Sep 17, 2026: from $189
    17

    Thu

  • PDX–DEN, Sep 18, 2026: from $189
    18

    Fri

  • PDX–DEN: cmp-view-offers-disclaimer. Find Offers
    19

    Sat

  • PDX–DEN, Sep 20, 2026: from $179
    20

    Sun

  • PDX–DEN, Sep 21, 2026: from $179
    21

    Mon

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

    Tue

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

    Wed

  • PDX–DEN, Sep 24, 2026: from $179
    24

    Thu

  • PDX–DEN, Sep 25, 2026: from $148
    25

    Fri

  • PDX–DEN, Sep 26, 2026: from $167
    26

    Sat

  • PDX–DEN, Sep 27, 2026: from $167
    27

    Sun

  • PDX–DEN, Sep 28, 2026: from $167
    28

    Mon

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

    Tue

  • PDX–DEN: cmp-view-offers-disclaimer. Find Offers
    30

    Wed

  • PDX–DEN, Oct 1, 2026: from $167
    01

    Thu

    OCT

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    02

    Fri

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    03

    Sat

  • PDX–DEN, Oct 4, 2026: from $133
    04

    Sun

  • PDX–DEN, Oct 5, 2026: from $144
    05

    Mon

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    06

    Tue

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    07

    Wed

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    08

    Thu

  • PDX–DEN, Oct 9, 2026: from $214
    09

    Fri

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

    Sat

  • PDX–DEN, Oct 11, 2026: from $133
    11

    Sun

  • PDX–DEN: cmp-view-offers-disclaimer. Find Offers
    12

    Mon

    • Range$133-$214

    *Prices found by others in the previous 48 hours for round-trip flights. Prices shown may also require membership in our travel club, Discount Den.

    Flights Deals from Portland, OR to Denver, CO on Frontier

    $
    Flights Deals from Portland, OR to Denver, CO on Frontier
    From
    To
    Portland, OR (PDX)Denver, CO (DEN)One-way
    /
    Discount Den Basic Fare    		Departing Jan 17, 2027

    From

    $134

    Last seen: 20 hours ago

    *Prices found by others in the previous 48 hours for one-way flights. Prices shown may also require membership in our travel club, Discount Den®.

    Portland, OR Denver, CO

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