Cheapest return flights from Miami to St. Croix Island in September from $334

AirHint found the following cheapest return flights from Miami (MIA) to St. Croix Island (STX) in September 2025 (see full year).

Return flights

12 Sep - 14 Sep Frontier Airlines
12 Sep - 14 Sep American Airlines direct

Also check the deals for one-way flights from Miami to St. Croix Island in September.

Skyscanner

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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