AirHint found the following cheapest return flights from Miami (MIA) to San Juan (SJU) in December 2026 (see full year).
Return flights
| 25 Dec - 01 Jan | American Airlines | direct | |
| 20 Dec - 26 Dec | American Airlines | direct | |
| 29 Dec - 02 Jan | American Airlines | direct | |
| 11 Dec - 19 Dec | Delta | ||
| 28 Dec - 05 Jan | Delta | ||
| 25 Dec - 04 Jan | Delta |
Also check the deals for one-way flights from Miami to San Juan in December.
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