Cheapest one-way flights from Fort Lauderdale to St. Croix Island in September from $99

AirHint found the following cheapest one-way flights from Fort Lauderdale (FLL) to St. Croix Island (STX) in September 2025 (see full year).

One-Way flights

15 Sep Spirit Airlines direct
02 Sep Spirit Airlines direct
17 Sep Spirit Airlines direct
20 Sep Spirit Airlines direct
26 Sep Spirit Airlines direct
29 Sep Spirit Airlines direct
05 Sep Spirit Airlines direct
08 Sep Spirit Airlines direct

Also check the deals for return flights from Fort Lauderdale 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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