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

Return flights

05 Sep - 20 Sep	Air France
01 Sep - 20 Sep	KLM
08 Sep - 20 Sep	Air France
04 Sep - 20 Sep	Air France
12 Sep - 26 Sep	Air France
13 Sep - 03 Oct	Air France
10 Sep - 20 Sep	Air France
02 Sep - 15 Sep	Air France
14 Sep - 01 Oct	Iberia	direct
14 Sep - 23 Sep	Iberia	direct
12 Sep - 23 Sep	Iberia	direct
11 Sep - 23 Sep	Iberia	direct
21 Sep - 11 Oct	Iberia	direct
24 Sep - 01 Oct	Iberia	direct
13 Sep - 03 Oct	Iberia	direct

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

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 September from 593€

Return flights