Cheapest return flights from London to San Juan in August from $1595

AirHint found the following cheapest return flights from London (LCY) to San Juan (SJU) in August 2026 (see full year).

Return flights

20 Aug - 31 Aug SWISS
10 Aug - 24 Aug KLM
10 Aug - 23 Aug KLM
03 Aug - 17 Aug SWISS
15 Aug - 24 Aug SWISS
21 Aug - 31 Aug British Airways
21 Aug - 30 Aug British Airways
11 Aug - 15 Aug KLM
14 Aug - 27 Aug British Airways
06 Aug - 13 Aug British Airways

Also check the deals for one-way flights from London to San Juan in August.

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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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