AirHint found the following cheapest one-way flights from Memphis (MEM) to San Juan (SJU) in December 2025 (see full year).
One-Way flights
| 21 Dec | Allegiant Air | ||
| 20 Dec | Spirit Airlines | ||
| 13 Dec | Spirit Airlines | ||
| 19 Dec | Allegiant Air | ||
| 11 Dec | Spirit Airlines |
Also check the deals for return flights from Memphis to San Juan in December.
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