AirHint found the following cheapest one-way flights from Miami (MIA) to Bilbao (BIO) in December 2025 (see full year).
One-Way flights
| 09 Dec | TAP | ||
| 01 Dec | TAP | ||
| 30 Dec | Frontier Airlines | ||
| 24 Dec | TAP | ||
| 25 Dec | Lufthansa | ||
| 23 Dec | FrenchBee |
Also check the deals for return flights from Miami to Bilbao in December.
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