Cheapest return flights from Phoenix to San Diego in January from 49€

AirHint found the following cheapest return flights from Phoenix (PHX) to San Diego (SAN) in January 2026 (see full year).

Return flights

14 Jan - 18 Jan Frontier Airlines direct
22 Jan - 26 Jan Frontier Airlines direct
15 Jan - 18 Jan Frontier Airlines direct
16 Jan - 19 Jan Frontier Airlines direct
17 Jan - 18 Jan Frontier Airlines direct
16 Jan - 18 Jan Frontier Airlines direct
10 Jan - 11 Jan Frontier Airlines direct
26 Jan - 28 Jan Frontier Airlines direct
26 Jan - 28 Jan Frontier Airlines
03 Jan - 04 Jan Frontier Airlines direct

Also check the deals for one-way flights from Phoenix to San Diego in January.

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