Cheapest return flights from Denver to San Diego in January from 32€

AirHint found the following cheapest return flights from Denver (DEN) to San Diego (SAN) in January 2026 (see full year).

Return flights

29 Jan - 31 Jan Frontier Airlines direct
14 Jan - 21 Jan Frontier Airlines direct
12 Jan - 14 Jan Frontier Airlines direct
23 Jan - 30 Jan Frontier Airlines direct
21 Jan - 28 Jan Frontier Airlines direct
24 Jan - 27 Jan Frontier Airlines direct
23 Jan - 25 Jan Frontier Airlines direct
22 Jan - 25 Jan Frontier Airlines direct
10 Jan - 11 Jan Frontier Airlines direct
09 Jan - 12 Jan Frontier Airlines direct
29 Jan - 01 Feb Frontier Airlines direct
29 Jan - 03 Feb Frontier Airlines direct
31 Jan - 01 Feb Frontier Airlines direct
23 Jan - 06 Feb Frontier Airlines direct
30 Jan - 01 Feb Frontier Airlines direct
31 Jan - 07 Feb Frontier Airlines direct

Also check the deals for one-way flights from Denver to San Diego in January.

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