AirHint found the following cheapest one-way flights from Phoenix (PHX) to Denver (DEN) in November 2025 (see full year).

One-Way flights

10 Nov	Frontier Airlines	direct
17 Nov	Frontier Airlines	direct
01 Nov	Frontier Airlines	direct
05 Nov	Frontier Airlines	direct
11 Nov	Frontier Airlines	direct
12 Nov	Frontier Airlines	direct
18 Nov	Frontier Airlines	direct
19 Nov	Frontier Airlines	direct
20 Nov	Frontier Airlines	direct
03 Nov	Frontier Airlines	direct

Also check the deals for return flights from Phoenix to Denver in November.

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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Cheapest one-way flights from Phoenix to Denver in November from $40

One-Way flights