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

Return flights

30 Aug - 07 Sep	Ryanair
31 Aug - 05 Sep	Wizz Air Malta
12 Aug - 25 Aug	Norse Atlantic Airways
25 Aug - 01 Sep	Lufthansa
13 Aug - 23 Aug	Condor
21 Aug - 30 Aug	Norse Atlantic Airways
18 Aug - 23 Aug	Condor
21 Aug - 28 Aug	Condor
12 Aug - 23 Aug	Condor
09 Aug - 23 Aug	Condor
22 Aug - 29 Aug	Condor
18 Aug - 28 Aug	TAP
09 Aug - 14 Aug	Condor
16 Aug - 01 Sep	United

Also check the deals for one-way flights from Rome 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 Rome to San Juan in August from 653€

Return flights