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

Return flights

08 Dec - 13 Dec	ITA Airways
02 Dec - 10 Dec	easyJet
07 Dec - 13 Dec	ITA Airways
06 Dec - 10 Dec	Air France
04 Dec - 09 Dec	easyJet
05 Dec - 10 Dec	Air France
08 Dec - 14 Dec	British Airways
02 Dec - 11 Dec	easyJet
04 Dec - 13 Dec	easyJet
03 Dec - 11 Dec	Air France
30 Dec - 08 Jan	Austrian Airlines
30 Dec - 11 Jan	Austrian Airlines
29 Dec - 13 Jan	easyJet
30 Dec - 14 Jan	Lufthansa
31 Dec - 11 Jan	Iberia
30 Dec - 10 Jan	Lufthansa
30 Dec - 12 Jan	Iberia
29 Dec - 09 Jan	easyJet
31 Dec - 12 Jan	ITA Airways
21 Dec - 07 Jan	easyJet

Also check the deals for one-way flights from Milan 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 Milan to San Juan in December from 664€

Return flights