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

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

One-Way flights

01 Apr American Airlines direct
14 Apr Southwest Airlines direct
12 Apr Frontier Airlines direct

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

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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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