Cheapest return flights from Chicago to St. Thomas in December from $369

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

Return flights

20 Dec - 10 Jan Spirit Airlines
20 Dec - 31 Dec Spirit Airlines
20 Dec - 30 Dec Spirit Airlines
28 Dec - 10 Jan Spirit Airlines
26 Dec - 31 Dec Sun Country Airlines
28 Dec - 31 Dec Spirit Airlines
31 Dec - 07 Jan United direct
27 Dec - 10 Jan Spirit Airlines
28 Dec - 30 Dec Spirit Airlines
29 Dec - 10 Jan Spirit Airlines
27 Dec - 31 Dec Spirit Airlines
27 Dec - 30 Dec Spirit Airlines
29 Dec - 31 Dec Spirit Airlines
29 Dec - 02 Jan Spirit Airlines
20 Dec - 02 Jan Spirit Airlines
28 Dec - 04 Jan Frontier Airlines
26 Dec - 10 Jan Spirit Airlines
28 Dec - 02 Jan Spirit Airlines
26 Dec - 30 Dec Spirit Airlines
20 Dec - 30 Dec United direct

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

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