Cheapest return flights from San Francisco to Phoenix in December from $60

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

Return flights

14 Dec - 11 Jan Frontier Airlines direct
14 Dec - 17 Dec Frontier Airlines
14 Dec - 16 Dec Frontier Airlines
12 Dec - 15 Dec Frontier Airlines direct
21 Dec - 28 Dec Frontier Airlines direct
20 Dec - 27 Dec Frontier Airlines direct
07 Dec - 22 Dec Frontier Airlines
09 Dec - 12 Dec Frontier Airlines
18 Dec - 25 Dec United
12 Dec - 25 Dec United direct
16 Dec - 24 Dec United direct
29 Dec - 03 Jan Frontier Airlines
23 Dec - 05 Jan Frontier Airlines
28 Dec - 02 Jan Frontier Airlines
29 Dec - 02 Jan Frontier Airlines
31 Dec - 03 Jan Southwest Airlines
31 Dec - 03 Jan United direct
31 Dec - 04 Jan Frontier Airlines
18 Dec - 04 Jan Frontier Airlines
31 Dec - 04 Jan Alaska Airlines direct

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

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