Cheapest return flights from San Diego to San Juan in August from 364€

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

Return flights

01 Aug - 10 Aug Spirit Airlines
07 Aug - 10 Aug Spirit Airlines
12 Aug - 21 Aug United
28 Aug - 07 Sep Spirit Airlines
14 Aug - 24 Aug Alaska Airlines
12 Aug - 14 Aug United
01 Aug - 03 Aug Spirit Airlines
06 Aug - 13 Aug United
27 Aug - 31 Aug Alaska Airlines
14 Aug - 31 Aug Spirit Airlines
12 Aug - 19 Aug United
29 Aug - 02 Sep Frontier Airlines
27 Aug - 01 Sep Alaska Airlines

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

Skyscanner

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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