AirHint found the following cheapest return flights from Milano (MXP) to San Juan (SJU) in December 2025 (see full year).

Return flights

04 Dec - 11 Dec	Wizz Air Malta
09 Dec - 16 Dec	Air France
03 Dec - 10 Dec	TAP
12 Dec - 15 Dec	Iberia
03 Dec - 12 Dec	Finnair
10 Dec - 17 Dec	SWISS
02 Dec - 16 Dec	Delta
31 Dec - 08 Jan	United
06 Dec - 14 Dec	Delta
05 Dec - 19 Dec	Air France
06 Dec - 13 Dec	Air France
29 Dec - 09 Jan	British Airways
29 Dec - 10 Jan	United
31 Dec - 11 Jan	United
31 Dec - 07 Jan	United
30 Dec - 12 Jan	United
25 Dec - 08 Jan	United
25 Dec - 10 Jan	United
29 Dec - 06 Jan	British Airways
29 Dec - 08 Jan	United

Also check the deals for one-way flights from Milano to San Juan in December.

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 Milano to San Juan in December from $709

Return flights