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

Return flights

18 Sep - 25 Sep	Wizz Air Malta
18 Sep - 23 Sep	Wizz Air Malta
24 Sep - 28 Sep	Condor
23 Sep - 07 Oct	Wizz Air Malta
17 Sep - 24 Sep	Ryanair
23 Sep - 03 Oct	Wizz Air Malta
14 Sep - 21 Sep	Wizz Air Malta
05 Sep - 13 Sep	Wizz Air Malta
20 Sep - 27 Sep	Wizz Air Malta
04 Sep - 07 Sep	United
08 Sep - 15 Sep	United
04 Sep - 11 Sep	United
25 Sep - 02 Oct	easyJet

Also check the deals for one-way flights from Rome to San Juan in September.

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 September from 614€

Return flights