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

Return flights

25 Sep - 29 Sep	Air France
23 Sep - 01 Oct	KLM
27 Sep - 14 Oct	Iberojet	direct
30 Sep - 09 Oct	Iberojet	direct
22 Sep - 30 Sep	Avianca
25 Sep - 14 Oct	Iberojet	direct
07 Sep - 13 Sep	KLM
16 Sep - 25 Sep	Iberojet	direct
18 Sep - 25 Sep	Iberojet	direct
30 Sep - 16 Oct	Iberojet	direct
27 Sep - 18 Oct	Iberojet	direct
27 Sep - 16 Oct	Iberojet	direct
30 Sep - 07 Oct	Iberojet	direct
09 Sep - 25 Sep	Avianca
29 Sep - 09 Oct	Air France
30 Sep - 31 Oct	Air France
25 Sep - 30 Sep	Iberojet	direct
12 Sep - 25 Sep	Air France
10 Sep - 25 Sep	KLM
11 Sep - 25 Sep	Air France

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 534€

Return flights