Cheapest return SLU–LTN flights, June

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

Return flights

18 Jun - 23 Jun WestJet
23 Jun - 21 Jul jetBlue
07 Jun - 28 Jun WestJet

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