Cheapest return flights from Charleston to Castries in May from $638

AirHint found the following cheapest return flights from Charleston (CHS) to Castries (SLU) in May 2026 (see full year).

Return flights

05 May - 13 May Delta
06 May - 14 May Spirit Airlines
06 May - 13 May Spirit Airlines

Also check the deals for one-way flights from Charleston to Castries in May.

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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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