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

One-Way flights

14 Dec	Spirit Airlines
06 Dec	Spirit Airlines
11 Dec	Spirit Airlines
31 Dec	Spirit Airlines
30 Dec	Spirit Airlines
29 Dec	Spirit Airlines
22 Dec	Spirit Airlines
24 Dec	Spirit Airlines
25 Dec	Spirit Airlines

Also check the deals for return 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 one-way flights from New York to St. Thomas in December from $139

One-Way flights