Cheapest return flights from London to Castries in April from $1465

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

Return flights

01 Apr - 08 Apr Delta
09 Apr - 16 Apr Delta
01 Apr - 15 Apr Delta
07 Apr - 21 Apr Delta
14 Apr - 21 Apr Delta
05 Apr - 15 Apr KLM
01 Apr - 14 Apr Delta
07 Apr - 28 Apr Delta
06 Apr - 16 Apr Delta
13 Apr - 23 Apr Delta
25 Apr - 03 May Delta

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

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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