Cheapest return flights from Tucson to Denver in May from $139

Best time to book flights for Tucson (TUS) to Denver (DEN) flights at AirHint

AirHint found the following cheapest return flights from Tucson (TUS) to Denver (DEN) in May 2025 (see full year).

Return flights

15 May - 18 May Frontier Airlines direct
29 May - 01 Jun Frontier Airlines direct
29 May - 04 Jun Frontier Airlines
28 May - 29 May American Airlines
16 May - 18 May Delta
17 May - 18 May Delta
16 May - 18 May United direct
23 May - 25 May American Airlines
28 May - 29 May Southwest Airlines direct
29 May - 04 Jun Southwest Airlines direct
17 May - 18 May United direct
23 May - 25 May United direct
08 May - 10 May Frontier Airlines

Also check the deals for one-way flights from Tucson to Denver in May.

Skyscanner

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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