Cheapest one-way flights from Portland to Denver in January from $29

AirHint found the following cheapest one-way flights from Portland (PDX) to Denver (DEN) in January 2026 (see full year).

One-Way flights

16 Jan Frontier Airlines direct
19 Jan Alaska Airlines direct
20 Jan Alaska Airlines direct
20 Jan Alaska Airlines
21 Jan Alaska Airlines
22 Jan Alaska Airlines
21 Jan United direct
17 Jan United direct
12 Jan Alaska Airlines direct
11 Jan Frontier Airlines direct

Also check the deals for return flights from Portland to Denver in January.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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