Cheapest return flights from San Antonio to San Juan in December from $166

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

Return flights

10 Dec - 12 Dec Spirit Airlines direct
10 Dec - 17 Dec Spirit Airlines direct
08 Dec - 17 Dec Spirit Airlines direct
01 Dec - 05 Dec Spirit Airlines direct
01 Dec - 17 Dec Spirit Airlines direct
03 Dec - 17 Dec Spirit Airlines direct
08 Dec - 12 Dec Spirit Airlines direct
31 Dec - 14 Jan Spirit Airlines direct
01 Dec - 12 Dec Spirit Airlines direct
03 Dec - 12 Dec Spirit Airlines direct
08 Dec - 10 Dec Spirit Airlines direct
31 Dec - 07 Jan Spirit Airlines direct
29 Dec - 14 Jan Spirit Airlines direct
31 Dec - 16 Jan Spirit Airlines direct
31 Dec - 12 Jan Spirit Airlines direct
31 Dec - 10 Jan Spirit Airlines direct
29 Dec - 07 Jan Spirit Airlines direct
17 Dec - 07 Jan Spirit Airlines direct
29 Dec - 16 Jan Spirit Airlines direct
31 Dec - 05 Jan Spirit Airlines direct

Also check the deals for one-way flights from San Antonio to San Juan 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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