Cheapest return flights from Houston to St. Thomas in December from $405

AirHint found the following cheapest return flights from Houston (IAH) to St. Thomas (STT) in December 2025 (see full year).

Return flights

18 Dec - 07 Jan Spirit Airlines
21 Dec - 07 Jan Spirit Airlines
21 Dec - 28 Dec Frontier Airlines
18 Dec - 28 Dec Spirit Airlines
19 Dec - 07 Jan Spirit Airlines
20 Dec - 07 Jan Spirit Airlines
19 Dec - 28 Dec Spirit Airlines
20 Dec - 28 Dec Spirit Airlines
21 Dec - 28 Dec United direct

Also check the deals for one-way flights from Houston to St. Thomas in December.

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