AirHint found the following cheapest return flights from Detroit (DTW) to St. Thomas (STT) in March 2026 (see full year).

Return flights

25 Mar - 28 Mar	Spirit Airlines
20 Mar - 28 Mar	Avelo Airlines
14 Mar - 21 Mar	American Airlines
25 Mar - 02 Apr	Spirit Airlines
20 Mar - 02 Apr	Spirit Airlines
14 Mar - 28 Mar	Spirit Airlines
20 Mar - 21 Mar	Spirit Airlines
14 Mar - 02 Apr	Spirit Airlines
28 Mar - 03 Apr	American Airlines

Also check the deals for one-way flights from Detroit to St. Thomas in March.

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 Detroit to St. Thomas in March from $441

Return flights