Cheapest one-way flights from Portland to Denver in January from 25€

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
15 Jan Frontier Airlines direct
21 Jan United direct
17 Jan Southwest Airlines direct
19 Jan Southwest Airlines direct
22 Jan United direct
04 Jan Frontier Airlines direct
13 Jan Alaska Airlines
13 Jan Southwest Airlines direct
07 Jan Alaska Airlines

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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