AirHint found the following cheapest return flights from Sacramento (SMF) to San Juan (SJU) in August 2025 (see full year).

Return flights

05 Aug - 09 Aug	Spirit Airlines
02 Aug - 09 Aug	Spirit Airlines
26 Aug - 30 Aug	Delta
02 Aug - 05 Aug	Spirit Airlines
16 Aug - 04 Sep	Spirit Airlines
08 Aug - 13 Aug	Delta
02 Aug - 06 Aug	Spirit Airlines
02 Aug - 04 Aug	Spirit Airlines
11 Aug - 18 Aug	United
07 Aug - 11 Aug	United

Also check the deals for one-way flights from Sacramento to San Juan in August.

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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Cheapest return flights from Sacramento to San Juan in August from 222€

Return flights