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

Return flights

15 Oct - 18 Oct	Norse Atlantic Airways
15 Oct - 22 Oct	Ryanair
17 Oct - 21 Oct	Norse Atlantic Airways
09 Oct - 13 Oct	Norse Atlantic Airways
01 Oct - 26 Oct	Ryanair
01 Oct - 12 Oct	Ryanair
01 Oct - 05 Oct	Ryanair
06 Oct - 14 Oct	Norse Atlantic Airways
06 Oct - 12 Oct	Ryanair
16 Oct - 21 Oct	Ryanair
02 Oct - 02 Nov	Norse Atlantic Airways
29 Oct - 08 Nov	Norse Atlantic Airways

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

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.

Book a cheap hotel in San Juan

Cheap car rent in San Juan

Cheapest return flights from Rome to San Juan in October from $632

Return flights