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

Return flights

13 Sep - 25 Sep	Iberia
11 Sep - 26 Sep	Iberia
11 Sep - 21 Sep	Iberia
11 Sep - 27 Sep	Iberia
19 Sep - 01 Oct	Iberia
19 Sep - 27 Sep	Iberia
07 Sep - 21 Sep	Iberia
22 Sep - 09 Oct	LEVEL
03 Sep - 14 Sep	Iberia
01 Sep - 11 Sep	Delta
01 Sep - 09 Sep	Delta
02 Sep - 11 Sep	Delta

Also check the deals for one-way flights from Barcelona 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 Barcelona to San Jose in September from 646€

Return flights