Cheapest return flights from Tucson to Denver in December from $217

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

Return flights

04 Dec - 09 Dec Southwest Airlines direct
10 Dec - 17 Dec Delta
31 Dec - 03 Jan United direct
10 Dec - 17 Dec United direct
24 Dec - 28 Dec Southwest Airlines
26 Dec - 30 Dec Southwest Airlines direct

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

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