Cheapest return flights from San Antonio to San Juan in December from 292€

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

Return flights

31 Dec - 07 Jan Spirit Airlines
31 Dec - 06 Jan Spirit Airlines
31 Dec - 02 Jan Spirit Airlines direct
31 Dec - 07 Jan Spirit Airlines direct
31 Dec - 05 Jan Spirit Airlines
29 Dec - 31 Dec Spirit Airlines
29 Dec - 31 Dec Spirit Airlines direct
27 Dec - 30 Dec Southwest Airlines
31 Dec - 01 Jan Spirit Airlines
30 Dec - 07 Jan Spirit Airlines
27 Dec - 07 Jan Spirit Airlines
27 Dec - 31 Dec Spirit Airlines
27 Dec - 29 Dec Spirit Airlines
30 Dec - 31 Dec Spirit Airlines
30 Dec - 06 Jan Spirit Airlines
29 Dec - 06 Jan Spirit Airlines
29 Dec - 30 Dec Spirit Airlines

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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