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

Return flights

27 Aug - 07 Sep	Air Canada
28 Aug - 07 Sep	Air Canada
26 Aug - 07 Sep	Air Canada
27 Aug - 10 Sep	Air Canada
28 Aug - 10 Sep	Lufthansa
26 Aug - 19 Sep	SWISS
26 Aug - 13 Sep	SWISS
19 Aug - 24 Sep	Air France
29 Aug - 07 Sep	Air Canada
18 Aug - 24 Sep	KLM
18 Aug - 21 Aug	Avianca
18 Aug - 24 Aug	Avianca
18 Aug - 20 Aug	Avianca
26 Aug - 28 Aug	Ryanair
18 Aug - 28 Aug	Avianca
15 Aug - 18 Aug	Avianca
16 Aug - 21 Aug	Air Europa
19 Aug - 28 Aug	Ryanair
21 Aug - 28 Aug	Ryanair
16 Aug - 18 Aug	Ryanair

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

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 August from 517€

Return flights