Cheapest return flights from London to Castries in June from $3402

AirHint found the following cheapest return flights from London (LCY) to Castries (SLU) in June 2026 (see full year).

Return flights

08 Jun - 22 Jun Delta
05 Jun - 22 Jun Delta
06 Jun - 22 Jun Delta
15 Jun - 29 Jun Delta

Also check the deals for one-way flights from London to Castries in June.

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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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