Cheapest return flights from Raleigh-durham to Castries in March from $595

AirHint found the following cheapest return flights from Raleigh-durham (RDU) to Castries (SLU) in March 2026 (see full year).

Return flights

13 Mar - 17 Mar American Airlines
27 Mar - 01 Apr American Airlines

Also check the deals for one-way flights from Raleigh-durham to Castries in March.

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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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