Cheapest return flights from Miami to Castries in December from 668€

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

Return flights

04 Dec - 07 Dec Air Canada
27 Dec - 04 Jan Caribbean Airlines
26 Dec - 05 Jan Spirit Airlines
11 Dec - 21 Dec Copa
11 Dec - 18 Dec Copa
11 Dec - 20 Dec Copa
20 Dec - 03 Jan Caribbean Airlines
24 Dec - 28 Dec Delta
11 Dec - 19 Dec Delta
28 Dec - 04 Jan Delta

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

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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