AirHint found the following cheapest return flights from Miami (MIA) to Barcelona (BCN) in December 2026 (see full year).
Return flights
| 20 Dec - 30 Dec | SWISS | ||
| 18 Dec - 04 Jan | Air Canada | ||
| 18 Dec - 01 Jan | TAP | ||
| 19 Dec - 02 Jan | Air Canada | ||
| 18 Dec - 03 Jan | Royal Air Maroc |
Also check the deals for one-way flights from Miami to Barcelona in December.
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