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

Return flights

28 May - 07 Jun	Air France
30 May - 07 Jun	Air France
18 May - 31 May	Iberia	direct
04 May - 20 May	Iberia	direct
07 May - 19 May	Iberia	direct
11 May - 25 May	Iberia	direct
28 May - 07 Jun	Iberia	direct
08 May - 15 May	Iberia	direct
14 May - 26 May	Iberia	direct
01 May - 10 May	Iberia	direct
09 May - 16 May	Iberojet	direct
02 May - 16 May	Iberojet	direct
08 May - 16 May	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 $763

Return flights