Cheapest return flights from Phoenix to San Diego in April from 40€

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

Return flights

28 Apr - 30 Apr Frontier Airlines direct
20 Apr - 22 Apr Frontier Airlines direct
09 Apr - 14 Apr Frontier Airlines direct
15 Apr - 16 Apr Frontier Airlines direct
09 Apr - 15 Apr Frontier Airlines direct
14 Apr - 21 Apr Frontier Airlines direct
11 Apr - 13 Apr Frontier Airlines direct
12 Apr - 16 Apr Frontier Airlines direct
15 Apr - 20 Apr Frontier Airlines direct
15 Apr - 22 Apr Frontier Airlines direct
22 Apr - 05 May Frontier Airlines direct
29 Apr - 04 May Frontier Airlines direct
30 Apr - 04 May Frontier Airlines direct
25 Apr - 01 May Frontier Airlines direct

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

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