Cheapest return flights from San Francisco to San Juan in August from 374€

Best time to book flights for San Francisco (SFO) to San Juan (SJU) flights at AirHint

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

Return flights

31 Aug - 05 Sep United
05 Aug - 14 Aug United
13 Aug - 27 Aug United
25 Aug - 08 Sep United
09 Aug - 12 Aug United
10 Aug - 23 Aug Southwest Airlines
08 Aug - 11 Aug United
02 Aug - 05 Aug United
01 Aug - 06 Aug United
06 Aug - 10 Aug United
29 Aug - 01 Sep United

Also check the deals for one-way flights from San Francisco 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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