AirHint found the following cheapest return flights from Houston (HOU) to San Juan (SJU) in December 2026 (see full year).
Return flights
| 08 Dec - 19 Dec | United | direct | |
| 09 Dec - 19 Dec | United | direct | |
| 10 Dec - 19 Dec | United | direct | |
| 11 Dec - 19 Dec | American Airlines | ||
| 12 Dec - 20 Dec | American Airlines | ||
| 11 Dec - 19 Dec | United | direct |
Also check the deals for one-way flights from Houston to San Juan in December.
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