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

Return flights

06 Dec - 08 Dec	Spirit Airlines
05 Dec - 08 Dec	Spirit Airlines
04 Dec - 08 Dec	Spirit Airlines
06 Dec - 07 Dec	Spirit Airlines
05 Dec - 07 Dec	Spirit Airlines
04 Dec - 07 Dec	Spirit Airlines
06 Dec - 13 Dec	Spirit Airlines
05 Dec - 13 Dec	Spirit Airlines
04 Dec - 13 Dec	Spirit Airlines

Also check the deals for one-way flights from Indianapolis 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 Indianapolis to St. Thomas in December from 221€

Return flights