Cheap flights from Portland to North Central Colorado

View AU$121 flight on Sat, 6 Sep. 2025Opens in a new window

Popular airlines from Portland to North Central Colorado

  • Jetstar

    Jetstar

  • Qantas Airways

    Qantas Airways

  • Virgin Australia

    Virgin Australia

  • Scoot

    Scoot

  • American Airlines

    American Airlines

  • Emirates

    Emirates

  • United

    United

  • Plan, book, fly with confidence

  • trending down icon

    Be in the know

    Get alerts if flight prices drop or rise*
  • bex rewards loyalty icon

    Book smarter

    Save up to 35% on select hotels after you book a flight*
  • payments icon

    Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap Flights from Portland (PDX) to North Central Colorado (DEN)

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
PDX
Portland
DEN
Denver
AU$241 Return, found 19 hours ago
AU$241
Return
found 19 hours ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Portland to Denver, returning Sat, 13 Sep., priced at AU$241 found 19 hours ago
Alaska Airlines
Tue, 2 Sep. - Tue, 9 Sep.
PDX
Portland
DEN
Denver
AU$243 Return, found 4 days ago
AU$243
Return
found 4 days ago
Select Alaska Airlines flight, departing Tue, 2 Sep. from Portland to Denver, returning Tue, 9 Sep., priced at AU$243 found 4 days ago
Alaska Airlines
Sat, 6 Sep. - Sat, 13 Sep.
PDX
Portland
DEN
Denver
AU$257 Return, found 19 hours ago
AU$257
Return
found 19 hours ago
Select Alaska Airlines flight, departing Sat, 6 Sep. from Portland to Denver, returning Sat, 13 Sep., priced at AU$257 found 19 hours ago
Delta
Tue, 2 Sep. - Tue, 9 Sep.
PDX
Portland
DEN
Denver
AU$259 Return, found 4 days ago
AU$259
Return
found 4 days ago
Select Delta flight, departing Tue, 2 Sep. from Portland to Denver, returning Tue, 9 Sep., priced at AU$259 found 4 days ago
United
Tue, 2 Sep. - Tue, 9 Sep.
PDX
Portland
DEN
Denver
AU$298 Return, found 4 days ago
AU$298
Return
found 4 days ago
Select United flight, departing Tue, 2 Sep. from Portland to Denver, returning Tue, 9 Sep., priced at AU$298 found 4 days ago
American Airlines
Sat, 6 Sep. - Sat, 13 Sep.
PDX
Portland
DEN
Denver
AU$318 Return, found 19 hours ago
AU$318
Return
found 19 hours ago
Select American Airlines flight, departing Sat, 6 Sep. from Portland to Denver, returning Sat, 13 Sep., priced at AU$318 found 19 hours ago

Find the cheapest month to fly from Portland (PDX) to Denver (DEN)

February is typically the cheapest month to fly

From AU$74 - AU$425 per traveller.

Graph displaying average flight prices per month

*Available to Expedia members.