AirHint found the following cheapest return flights from Madrid (MAD) to San Jose (SJO) in May 2026 (see full year).

Return flights

23 May - 07 Jun	Air France
16 May - 31 May	KLM
18 May - 31 May	KLM
15 May - 27 May	KLM
30 May - 13 Jun	Air France
16 May - 30 May	KLM
15 May - 26 May	KLM
05 May - 26 May	Air France
04 May - 13 May	Air France
21 May - 06 Jun	Air France
30 May - 16 Jun	Air France
11 May - 23 May	KLM
09 May - 23 May	KLM
11 May - 24 May	KLM
19 May - 02 Jun	Ryanair
28 May - 05 Jun	KLM
30 May - 16 Jun	Iberojet	direct
28 May - 05 Jun	Iberia	direct
21 May - 06 Jun	Iberia	direct
30 May - 13 Jun	Iberia	direct

Also check the deals for one-way flights from Madrid to San Jose in May.

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 May from 523€

Return flights