Cheapest one-way flights from San Antonio to San Juan in December from $86

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

One-Way flights

01 Dec Spirit Airlines direct
03 Dec Spirit Airlines direct
31 Dec Spirit Airlines direct
06 Dec Spirit Airlines
13 Dec Spirit Airlines
12 Dec Spirit Airlines direct
15 Dec Spirit Airlines direct
29 Dec Spirit Airlines direct
17 Dec Spirit Airlines direct
02 Dec Spirit Airlines

Also check the deals for return 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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