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Cheap flights from Portland (PDX) to Denver (DEN)

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How to find the cheapest flight from Portland (PDX) to Denver (DEN)

How to find the cheapest flight from Portland (PDX) to Denver (DEN)
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How to find the cheapest flight from Portland (PDX) to Denver (DEN)
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How to find the cheapest flight from Portland (PDX) to Denver (DEN)
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Cheap flights from Portland to Denver in December 2025 , January 2026

22 Dec - 08 Jan $ 137.00
PDX
Portland
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
PDX
Portland
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25 Dec - 16 Jan $ 184.00
PDX
Portland
Frontier Airlines
DIRECT
DEN
Denver
DEN
Denver
Frontier Airlines
DIRECT
PDX
Portland
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23 Dec - 08 Jan $ 268.00
PDX
Portland
Alaska Airlines
DIRECT
DEN
Denver
DEN
Denver
Alaska Airlines
DIRECT
PDX
Portland
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Last minute flights from Portland to Denver

22 Dec - 31 Dec $ 340.00
PDX
Portland
Frontier Airlines
1 STOPS
DEN
Denver
DEN
Denver
Frontier Airlines
1 STOPS
PDX
Portland
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25 Dec - 31 Dec $ 423.00
PDX
Portland
Hawaiian Airlines
DIRECT
DEN
Denver
DEN
Denver
Hawaiian Airlines
DIRECT
PDX
Portland
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23 Dec - 31 Dec $ 440.00
PDX
Portland
Hawaiian Airlines
DIRECT
DEN
Denver
DEN
Denver
Hawaiian Airlines
DIRECT
PDX
Portland
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One-way flights to Denver from Portland

8:45 PM - 7:00 AM
Frontier Airlines
1 Stops
11h 10m
PDX - DEN
$ 108
Kiwi
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12:47 PM - 12:47 PM
Frontier Airlines
0 Stops
2h 28m
PDX - DEN
$ 155
Kiwi
Pick dates
12:47 PM - 12:47 PM
Frontier Airlines
0 Stops
2h 28m
PDX - DEN
$ 175
Kiwi
Pick dates

How to find the cheapest flight from Portland (PDX) to Denver (DEN)

Related info for your journey
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How to find the cheapest flight from Portland (PDX) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.
How to find the cheapest flight from Portland (PDX) to Denver (DEN)
Some placeholder content for the first accordion panel. This panel is shown by default, thanks to the .show class.