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

Return flights

08 Dec - 15 Dec	Air France
10 Dec - 15 Dec	Air France
10 Dec - 24 Dec	Air France
10 Dec - 23 Dec	Air France
08 Dec - 23 Dec	KLM
08 Dec - 24 Dec	KLM
07 Dec - 23 Dec	KLM
08 Dec - 25 Dec	KLM
07 Dec - 15 Dec	Air France
07 Dec - 29 Dec	KLM
13 Dec - 12 Jan	Iberia
29 Dec - 14 Jan	Delta
29 Dec - 17 Jan	Delta
12 Dec - 09 Jan	Air Europa
12 Dec - 07 Jan	Air Europa
13 Dec - 11 Jan	Iberia
16 Dec - 13 Jan	TAP
16 Dec - 10 Jan	TAP
08 Dec - 09 Jan	Ryanair
12 Dec - 20 Jan	Air Europa

Also check the deals for one-way flights from Madrid 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 Madrid to San Jose in December from $732

Return flights