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

Return flights

01 Sep - 27 Sep	Air France
17 Sep - 29 Sep	Iberojet	direct
15 Sep - 29 Sep	Iberojet	direct
01 Sep - 15 Sep	Air France
01 Sep - 12 Sep	Iberojet	direct
01 Sep - 15 Sep	Iberojet	direct
09 Sep - 19 Sep	Air France
01 Sep - 19 Sep	Air France
01 Sep - 24 Sep	Air France
07 Sep - 21 Sep	Delta
19 Sep - 01 Oct	Iberojet	direct
18 Sep - 08 Oct	Air Canada
30 Sep - 14 Oct	KLM
18 Sep - 08 Oct	Iberia	direct
30 Sep - 14 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 $648

Return flights