Cheapest return flights from London to San Juan in July from $1469

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

Return flights

01 Jul - 15 Jul Aer Lingus
01 Jul - 08 Jul Aer Lingus
09 Jul - 15 Jul British Airways
20 Jul - 28 Jul Aer Lingus
08 Jul - 12 Jul British Airways
06 Jul - 13 Jul Aer Lingus
23 Jul - 02 Aug Aer Lingus
16 Jul - 25 Jul ITA Airways
24 Jul - 10 Aug British Airways
01 Jul - 11 Jul KLM

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

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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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