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

Return flights

01 Dec - 10 Dec	United
04 Dec - 12 Dec	Delta
11 Dec - 22 Dec	Air France
12 Dec - 14 Dec	United
31 Dec - 09 Jan	United
15 Dec - 24 Dec	Air France
08 Dec - 28 Dec	Delta
25 Dec - 10 Jan	KLM
27 Dec - 07 Jan	TAP
15 Dec - 30 Dec	Air France
18 Dec - 30 Dec	Air France
31 Dec - 06 Jan	United
25 Dec - 31 Dec	Delta
24 Dec - 02 Jan	Iberia
30 Dec - 09 Jan	Delta
22 Dec - 31 Dec	British Airways
25 Dec - 02 Jan	Iberia
20 Dec - 04 Jan	British Airways
22 Dec - 04 Jan	British Airways
26 Dec - 10 Jan	Air France

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 $802

Return flights