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

Return flights

26 Sep - 08 Oct	Avianca
28 Sep - 16 Oct	Spirit Airlines
14 Sep - 19 Sep	Spirit Airlines
21 Sep - 06 Oct	Avianca
30 Sep - 09 Oct	Avianca
22 Sep - 09 Oct	Spirit Airlines
22 Sep - 06 Oct	jetBlue
09 Sep - 17 Sep	Air France
09 Sep - 13 Sep	Air France
20 Sep - 23 Sep	Avianca
21 Sep - 05 Oct	Avianca
15 Sep - 22 Sep	Spirit Airlines
24 Sep - 09 Oct	Avianca
03 Sep - 17 Sep	Spirit Airlines
20 Sep - 17 Oct	Avianca
09 Sep - 16 Sep	Air France
08 Sep - 14 Sep	Spirit Airlines
11 Sep - 18 Sep	Spirit Airlines
29 Sep - 14 Oct	Avianca
03 Sep - 10 Sep	Spirit Airlines

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 $680

Return flights