Cheapest return flights from San Francisco to San Diego in December from 183€

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

Return flights

31 Dec - 07 Jan Frontier Airlines
31 Dec - 31 Dec Frontier Airlines direct
30 Dec - 14 Jan Frontier Airlines
30 Dec - 06 Jan Frontier Airlines
29 Dec - 05 Jan Alaska Airlines direct
25 Dec - 05 Jan Frontier Airlines
31 Dec - 01 Jan Frontier Airlines direct
25 Dec - 05 Jan Frontier Airlines direct
30 Dec - 14 Jan Southwest Airlines direct
31 Dec - 03 Jan Frontier Airlines direct
31 Dec - 04 Jan Frontier Airlines direct
28 Dec - 31 Dec Frontier Airlines
27 Dec - 31 Dec Frontier Airlines
27 Dec - 31 Dec Frontier Airlines direct
26 Dec - 31 Dec Frontier Airlines
24 Dec - 31 Dec Frontier Airlines direct
27 Dec - 29 Dec Frontier Airlines
24 Dec - 25 Dec Frontier Airlines direct
26 Dec - 29 Dec Frontier Airlines
29 Dec - 29 Dec Frontier Airlines direct

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

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