Cheapest return flights from Phoenix to San Diego in October from $77

AirHint found the following cheapest return flights from Phoenix (PHX) to San Diego (SAN) in October 2025 (see full year).

Return flights

05 Oct - 11 Oct Alaska Airlines direct
13 Oct - 15 Oct Alaska Airlines direct
15 Oct - 21 Oct Alaska Airlines direct
15 Oct - 20 Oct Alaska Airlines direct
03 Oct - 05 Oct Frontier Airlines direct
24 Oct - 26 Oct Frontier Airlines direct
17 Oct - 19 Oct Alaska Airlines direct
11 Oct - 13 Oct Frontier Airlines direct
10 Oct - 13 Oct Frontier Airlines direct
10 Oct - 14 Oct Alaska Airlines direct
31 Oct - 02 Nov Alaska Airlines direct

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

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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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