Cheapest return BCN–SJO flights, September

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

Return flights

08 Sep - 23 Sep Delta
21 Sep - 15 Oct Delta
18 Sep - 27 Sep Delta
01 Sep - 22 Sep Delta
11 Sep - 27 Sep Delta
21 Sep - 07 Oct Delta
10 Sep - 21 Sep Delta
01 Sep - 15 Sep Delta
03 Sep - 17 Sep Delta
11 Sep - 21 Sep Delta
10 Sep - 17 Sep Delta
05 Sep - 23 Sep Delta
24 Sep - 12 Oct Delta
23 Sep - 09 Oct Delta
26 Sep - 04 Oct Delta
22 Sep - 10 Oct Lufthansa
18 Sep - 03 Oct Air Canada

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

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