Cheapest return flights from Bilbao to San Jose in April from $735

AirHint found the following cheapest return flights from Bilbao (BIO) to San Jose (SJO) in April 2026 (see full year).

Return flights

09 Apr - 21 Apr Iberia
09 Apr - 22 Apr Iberia
09 Apr - 17 Apr Iberia
13 Apr - 25 Apr Iberia
09 Apr - 23 Apr Iberia
08 Apr - 23 Apr Iberia
13 Apr - 19 Apr Vueling Airlines
13 Apr - 06 May Iberia
28 Apr - 12 May Avianca
04 Apr - 14 Apr Iberia
03 Apr - 12 Apr Iberia
02 Apr - 12 Apr Air Europa

Also check the deals for one-way flights from Bilbao to San Jose in April.

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