Cheapest return flights from Salt Lake City to Denver in December from $39

AirHint found the following cheapest return flights from Salt Lake City (SLC) to Denver (DEN) in December 2025 (see full year).

Return flights

03 Dec - 16 Dec Frontier Airlines direct
06 Dec - 13 Dec Frontier Airlines direct
03 Dec - 15 Dec Frontier Airlines direct
09 Dec - 11 Dec Frontier Airlines direct
20 Dec - 22 Dec Frontier Airlines direct
04 Dec - 07 Dec Frontier Airlines direct
05 Dec - 09 Dec Frontier Airlines direct
10 Dec - 22 Dec Frontier Airlines direct
31 Dec - 02 Jan United direct
22 Dec - 29 Dec Delta direct

Also check the deals for one-way flights from Salt Lake City to Denver in December.

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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