AirHint found the following cheapest return flights from Bilbao (BIO) to San Jose (SJO) in October 2026 (see full year).
Return flights
| 08 Oct - 20 Oct | Iberia | ||
| 01 Oct - 15 Oct | Air Europa | ||
| 10 Oct - 22 Oct | Air Europa | ||
| 26 Oct - 11 Nov | SWISS | ||
| 10 Oct - 21 Oct | Wizz Air UK | ||
| 08 Oct - 14 Oct | Air Europa | ||
| 28 Oct - 13 Nov | Iberia |
Also check the deals for one-way flights from Bilbao to San Jose in October.
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