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

Return flights

15 Dec - 17 Dec	Spirit Airlines
11 Dec - 17 Dec	Spirit Airlines
15 Dec - 18 Dec	Spirit Airlines
15 Dec - 24 Dec	Spirit Airlines
11 Dec - 18 Dec	Spirit Airlines
11 Dec - 24 Dec	Spirit Airlines
11 Dec - 14 Dec	Spirit Airlines
12 Dec - 17 Dec	Spirit Airlines
11 Dec - 15 Dec	Spirit Airlines
17 Dec - 18 Dec	Spirit Airlines

Also check the deals for one-way flights from Charlotte 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 Charlotte to St. Thomas in December from $262

Return flights