AirHint found the following cheapest return flights from Bilbao (BIO) to Riga (RIX) in December 2025 (see full year).
Return flights
| 31 Dec - 04 Jan | Vueling Airlines | ||
| 30 Dec - 06 Jan | Air Europa | ||
| 30 Dec - 04 Jan | Air Europa | ||
| 30 Dec - 03 Jan | Air Europa |
Also check the deals for one-way flights from Bilbao to Riga in December.
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