Cheapest return flights from Phoenix to San Diego in December from 41€

AirHint found the following cheapest return flights from Phoenix (PHX) to San Diego (SAN) in December 2025 (see full year).

Return flights

06 Dec - 08 Dec Frontier Airlines direct
05 Dec - 08 Dec Frontier Airlines direct
14 Dec - 21 Dec Frontier Airlines direct
11 Dec - 17 Dec Frontier Airlines direct
12 Dec - 15 Dec Frontier Airlines direct
12 Dec - 14 Dec Frontier Airlines direct
02 Dec - 09 Dec Frontier Airlines direct
13 Dec - 14 Dec Frontier Airlines direct
25 Dec - 25 Dec Frontier Airlines direct
25 Dec - 28 Dec Frontier Airlines direct
30 Dec - 01 Jan Frontier Airlines direct
26 Dec - 06 Jan Frontier Airlines direct
27 Dec - 06 Jan Frontier Airlines direct

Also check the deals for one-way flights from Phoenix to San Diego in December.

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