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

Return flights

04 Dec - 08 Dec	Delta
02 Dec - 10 Dec	Air Canada
31 Dec - 20 Jan	Air France
04 Dec - 11 Dec	United
31 Dec - 13 Jan	Delta
31 Dec - 18 Jan	British Airways
01 Dec - 15 Dec	KLM
01 Dec - 04 Dec	KLM
31 Dec - 16 Jan	Air France
01 Dec - 07 Dec	KLM
31 Dec - 15 Jan	British Airways
02 Dec - 23 Dec	Delta
15 Dec - 29 Dec	KLM
01 Dec - 14 Dec	KLM
22 Dec - 22 Jan	British Airways
26 Dec - 22 Jan	British Airways
06 Dec - 20 Dec	KLM
29 Dec - 06 Jan	British Airways
29 Dec - 11 Jan	British Airways
25 Dec - 22 Jan	Delta

Also check the deals for one-way flights from Milan to San Jose 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 Jose in December from 697€

Return flights