AirHint found the following cheapest one-way flights from Miami (MIA) to Barcelona (BCN) in December 2025 (see full year).
One-Way flights
| 30 Dec | Spirit Airlines | ||
| 28 Dec | Royal Air Maroc | ||
| 31 Dec | LEVEL | direct | |
| 29 Dec | Spirit Airlines | ||
| 13 Dec | SWISS | ||
| 15 Dec | SWISS | ||
| 27 Dec | TAP | ||
| 24 Dec | Lufthansa | ||
| 26 Dec | TAP | ||
| 24 Dec | LEVEL | direct |
Also check the deals for return flights from Miami to Barcelona in December.
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