AirHint found the following cheapest return flights from Baltimore (BWI) to San Juan (SJU) in December 2026 (see full year).
Return flights
| 23 Dec - 23 Jan | United | ||
| 31 Dec - 04 Jan | Delta | ||
| 30 Dec - 05 Jan | Delta | ||
| 23 Dec - 05 Jan | United | ||
| 23 Dec - 28 Dec | Delta | ||
| 20 Dec - 31 Dec | Delta |
Also check the deals for one-way flights from Baltimore to San Juan in December.
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