Cheapest return flights from Bilbao to San Jose in December from $1010

AirHint found the following cheapest return flights from Bilbao (BIO) to San Jose (SJO) in December 2025 (see full year).

Return flights

01 Dec - 04 Dec Iberia
06 Dec - 16 Dec Air Europa
27 Dec - 22 Jan Volotea
10 Dec - 22 Dec Air Europa
29 Dec - 07 Jan Vueling Airlines
23 Dec - 06 Jan Iberia
17 Dec - 24 Dec TAP
26 Dec - 06 Jan Volotea
01 Dec - 16 Dec Air France
28 Dec - 05 Jan Vueling Airlines
20 Dec - 28 Dec KLM
20 Dec - 01 Jan Air Europa
22 Dec - 03 Jan Iberia

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

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