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

Return flights

25 Sep - 24 Oct	Air France
23 Sep - 01 Oct	KLM
30 Sep - 09 Oct	Iberojet	direct
30 Sep - 16 Oct	Iberojet	direct
30 Sep - 14 Oct	Iberojet	direct
18 Sep - 07 Oct	Spirit Airlines
25 Sep - 16 Oct	Iberojet	direct
27 Sep - 14 Oct	Iberojet	direct
30 Sep - 23 Oct	Iberojet	direct
25 Sep - 09 Oct	Iberojet	direct
20 Sep - 25 Sep	Iberojet	direct
24 Sep - 29 Sep	Air France
25 Sep - 29 Sep	Air France
11 Sep - 25 Sep	Air France
06 Sep - 25 Sep	Air France
15 Sep - 21 Sep	jetBlue
10 Sep - 25 Sep	KLM
18 Sep - 30 Sep	Iberojet	direct
11 Sep - 23 Sep	KLM
10 Sep - 17 Sep	KLM

Also check the deals for one-way flights from San Jose to Madrid 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 San Jose to Madrid in September from $615

Return flights