AirHint found the following cheapest return flights from Houston (IAH) to San Jose (SJO) in December 2026 (see full year).
Return flights
| 24 Dec - 02 Jan | Air Canada | ||
| 19 Dec - 30 Dec | Air Canada | ||
| 24 Dec - 02 Jan | United | direct | |
| 19 Dec - 30 Dec | United | direct |
Also check the deals for one-way flights from Houston to San Jose in December.
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