AirHint found the following cheapest return flights from Port-of-spain (POS) to Castries (SLU) in October 2025 (see full year).

Return flights

15 Oct - 22 Oct	Caribbean Airlines	direct
13 Oct - 20 Oct	Caribbean Airlines	direct
10 Oct - 17 Oct	Caribbean Airlines
12 Oct - 19 Oct	Caribbean Airlines
09 Oct - 16 Oct	Caribbean Airlines
10 Oct - 17 Oct	Caribbean Airlines	direct

Also check the deals for one-way flights from Port-of-spain to Castries in October.

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 Port-of-spain to Castries in October from $330

Return flights