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

Return flights

16 Dec - 19 Dec	Spirit Airlines
16 Dec - 23 Dec	Spirit Airlines
12 Dec - 23 Dec	Spirit Airlines
29 Dec - 11 Jan	Spirit Airlines
16 Dec - 02 Jan	Spirit Airlines
12 Dec - 02 Jan	Spirit Airlines
16 Dec - 03 Jan	Spirit Airlines
26 Dec - 11 Jan	Spirit Airlines
29 Dec - 02 Jan	Spirit Airlines
29 Dec - 03 Jan	Spirit Airlines
26 Dec - 02 Jan	Spirit Airlines
26 Dec - 03 Jan	Spirit Airlines

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

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from New York to St. Thomas in December from 491€

Return flights