AirHint found the following cheapest return flights from Bilbao (BIO) to Montreal (YUL) in December 2025 (see full year).
Return flights
| 06 Dec - 13 Dec | Vueling Airlines | ||
| 08 Dec - 12 Dec | Scandinavian Airlines | ||
| 26 Dec - 04 Jan | easyJet | ||
| 22 Dec - 02 Jan | KLM | ||
| 13 Dec - 18 Dec | Air France |
Also check the deals for one-way flights from Bilbao to Montreal in December.
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