Cheapest return flights from San Francisco to San Diego in December from 62€

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

Return flights

15 Dec - 17 Dec Frontier Airlines direct
15 Dec - 22 Dec Frontier Airlines direct
12 Dec - 15 Dec Southwest Airlines direct
17 Dec - 19 Dec Alaska Airlines direct
17 Dec - 21 Dec Alaska Airlines direct
18 Dec - 20 Dec Frontier Airlines direct
18 Dec - 23 Dec Frontier Airlines direct
16 Dec - 18 Dec Alaska Airlines direct
13 Dec - 15 Dec Hawaiian Airlines direct
13 Dec - 13 Dec United direct
31 Dec - 07 Jan Frontier Airlines direct
30 Dec - 05 Jan Frontier Airlines direct
18 Dec - 01 Jan Frontier Airlines direct
20 Dec - 14 Jan Frontier Airlines direct
20 Dec - 01 Jan Frontier Airlines direct
30 Dec - 01 Jan Frontier Airlines direct
29 Dec - 01 Jan Frontier Airlines direct
31 Dec - 03 Jan Frontier Airlines direct
19 Dec - 10 Jan Frontier Airlines direct
17 Dec - 03 Jan Hawaiian Airlines direct

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

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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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