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

Return flights

02 Dec - 10 Dec	KLM
03 Dec - 23 Dec	KLM
04 Dec - 08 Dec	Delta
01 Dec - 10 Dec	KLM
03 Dec - 07 Dec	Delta
10 Dec - 22 Dec	Air France
06 Dec - 21 Dec	KLM
10 Dec - 17 Dec	Air France
04 Dec - 18 Dec	KLM
05 Dec - 15 Dec	KLM
31 Dec - 23 Jan	British Airways
31 Dec - 17 Jan	British Airways
29 Dec - 16 Jan	British Airways
16 Dec - 12 Jan	Air France
31 Dec - 11 Jan	Air France
30 Dec - 12 Jan	Air France
25 Dec - 18 Jan	Iberia
28 Dec - 17 Jan	Iberia
16 Dec - 11 Jan	Air France
31 Dec - 10 Jan	British Airways

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from Milan to San Jose in December from 688€

Return flights