Cheapest return flights from Miami to Castries in September from 488€

AirHint found the following cheapest return flights from Miami (MIA) to Castries (SLU) in September 2025 (see full year).

Return flights

17 Sep - 23 Sep Air Canada
09 Sep - 13 Sep Caribbean Airlines
10 Sep - 13 Sep Caribbean Airlines
27 Sep - 05 Oct Frontier Airlines
10 Sep - 14 Sep Spirit Airlines
17 Sep - 23 Sep American Airlines direct
28 Sep - 05 Oct Caribbean Airlines
28 Sep - 06 Oct Spirit Airlines
01 Sep - 05 Sep Caribbean Airlines
14 Sep - 21 Sep Caribbean Airlines
17 Sep - 22 Sep Delta
14 Sep - 30 Sep Caribbean Airlines
15 Sep - 22 Sep Caribbean Airlines

Also check the deals for one-way flights from Miami to Castries 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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