Cheapest one-way flights from Phoenix to Denver in May from $117

AirHint found the following cheapest one-way flights from Phoenix (PHX) to Denver (DEN) in May 2026 (see full year).

One-Way flights

18 May Southwest Airlines direct
20 May Southwest Airlines direct
14 May Southwest Airlines direct
15 May Southwest Airlines direct
17 May Southwest Airlines direct

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

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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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