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

Return flights

04 Sep - 18 Sep	Delta
01 Sep - 11 Sep	Delta
01 Sep - 22 Sep	Delta
03 Sep - 25 Sep	Delta
01 Sep - 14 Sep	Delta
07 Sep - 17 Sep	Delta
04 Sep - 13 Sep	Air Canada
02 Sep - 13 Sep	Air Canada
01 Sep - 13 Sep	Air Canada
07 Sep - 13 Sep	Air Canada

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 675€

Return flights