Cheapest one-way flights from San Antonio to Phoenix in December from $29

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

One-Way flights

25 Dec Frontier Airlines direct
08 Dec Frontier Airlines direct
15 Dec Frontier Airlines direct
21 Dec Frontier Airlines direct
23 Dec Frontier Airlines direct
17 Dec Spirit Airlines
26 Dec Frontier Airlines
19 Dec Frontier Airlines
17 Dec American Airlines direct
27 Dec Spirit Airlines

Also check the deals for return flights from San Antonio to Phoenix 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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