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

Return flights

25 Jan - 03 Feb	Vueling Airlines
19 Jan - 31 Jan	Ryanair
26 Jan - 05 Feb	Iberia
19 Jan - 27 Jan	Iberia
13 Jan - 18 Jan	Iberia
15 Jan - 20 Jan	Iberia
31 Jan - 08 Feb	Vueling Airlines
21 Jan - 31 Jan	Lufthansa
19 Jan - 28 Jan	Lufthansa
12 Jan - 22 Jan	Lufthansa
30 Jan - 08 Feb	United
29 Jan - 08 Feb	United
12 Jan - 23 Feb	Lufthansa
10 Jan - 20 Jan	United
09 Jan - 16 Jan	United
04 Jan - 10 Jan	Wizz Air Malta
14 Jan - 04 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 $628

Return flights