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

Return flights

30 Aug - 25 Sep	Air France
28 Aug - 28 Sep	Lufthansa
28 Aug - 24 Sep	Lufthansa
27 Aug - 10 Sep	Lufthansa
25 Aug - 17 Sep	Lufthansa
25 Aug - 08 Sep	Avianca
27 Aug - 14 Sep	Lufthansa
25 Aug - 07 Sep	Avianca
29 Aug - 07 Sep	Air Canada
29 Aug - 30 Sep	Avianca
10 Aug - 25 Aug	TAP
20 Aug - 27 Aug	TAP
06 Aug - 19 Aug	TAP
10 Aug - 19 Aug	TAP
06 Aug - 15 Aug	TAP
06 Aug - 13 Aug	TAP
10 Aug - 17 Aug	TAP
06 Aug - 17 Aug	TAP
21 Aug - 28 Aug	TAP
21 Aug - 29 Aug	TAP

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 523€

Return flights