Cheapest return flights from Phoenix to San Antonio in December from 35€

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

Return flights

25 Dec - 30 Dec Frontier Airlines direct
05 Dec - 08 Dec Frontier Airlines direct
21 Dec - 23 Dec Frontier Airlines direct
23 Dec - 28 Dec Frontier Airlines direct
24 Dec - 29 Dec Frontier Airlines
24 Dec - 29 Dec Southwest Airlines direct
22 Dec - 29 Dec Frontier Airlines
22 Dec - 29 Dec Southwest Airlines direct

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

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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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