AirHint found the following cheapest return flights from Rome (ROM) to San Juan (SJU) in January 2026 (see full year).

Return flights

26 Jan - 31 Jan	Vueling Airlines
09 Jan - 17 Jan	Norse Atlantic Airways
19 Jan - 25 Jan	Vueling Airlines
15 Jan - 22 Jan	Iberia
17 Jan - 24 Jan	Vueling Airlines
22 Jan - 29 Jan	Iberia
12 Jan - 18 Jan	Iberia
24 Jan - 31 Jan	Iberia
19 Jan - 27 Jan	Iberia
19 Jan - 26 Jan	Iberia
23 Jan - 01 Feb	Delta
26 Jan - 05 Feb	Delta

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

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 January from 547€

Return flights