Cheapest return flights from San Francisco to San Diego in December from 50€

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

Return flights

12 Dec - 15 Dec Frontier Airlines direct
12 Dec - 14 Dec Frontier Airlines direct
31 Dec - 05 Jan Frontier Airlines direct
11 Dec - 14 Dec Hawaiian Airlines direct
10 Dec - 14 Dec Alaska Airlines direct
13 Dec - 14 Dec Southwest Airlines direct
09 Dec - 12 Dec United direct
06 Dec - 08 Dec Frontier Airlines
18 Dec - 05 Jan Frontier Airlines direct
04 Dec - 07 Dec Hawaiian Airlines direct
02 Dec - 04 Dec United direct
05 Dec - 08 Dec Frontier Airlines
06 Dec - 05 Jan Frontier Airlines
29 Dec - 12 Jan Frontier Airlines direct
30 Dec - 06 Jan United direct
06 Dec - 05 Jan Southwest Airlines direct
13 Dec - 01 Jan Frontier Airlines
13 Dec - 01 Jan Hawaiian Airlines direct
31 Dec - 02 Jan Frontier Airlines direct
20 Dec - 05 Jan United direct

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

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