Cheapest return flights from San Francisco to San Diego in December from 51€
AirHint found the following cheapest return flights from San Francisco (SFO) to San Diego (SAN)
in December 2025 (see full year ).
Return flights
05 Dec
- 08 Dec
Frontier Airlines
51 €
direct
11 Dec
- 17 Dec
Hawaiian Airlines
55 €
direct
05 Dec
- 07 Dec
Frontier Airlines
63 €
direct
16 Dec
- 20 Dec
Southwest Airlines
82 €
direct
29 Dec
- 05 Jan
Frontier Airlines
84 €
direct
27 Dec
- 30 Dec
Frontier Airlines
100 €
direct
18 Dec
- 21 Dec
Southwest Airlines
107 €
direct
20 Dec
- 26 Dec
Frontier Airlines
122 €
direct
21 Dec
- 24 Dec
United
125 €
direct
28 Dec
- 06 Jan
United
125 €
direct
25 Dec
- 14 Jan
Southwest Airlines
140 €
25 Dec
- 05 Jan
Frontier Airlines
141 €
21 Dec
- 26 Dec
Frontier Airlines
149 €
direct
24 Dec
- 05 Jan
Southwest Airlines
154 €
26 Dec
- 02 Jan
Frontier Airlines
155 €
direct
24 Dec
- 28 Dec
United
158 €
25 Dec
- 03 Jan
United
179 €
26 Dec
- 03 Jan
Frontier Airlines
184 €
direct
25 Dec
- 01 Jan
Southwest Airlines
209 €
30 Dec
- 01 Jan
Southwest Airlines
213 €
Also check the deals for one-way flights from San Francisco to San Diego in December .
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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