Cheapest return flights from San Juan to London in August from $744

AirHint found the following cheapest return flights from San Juan (SJU) to London (LHR) in August 2025 (see full year).

Return flights

22 Aug - 29 Aug jetBlue
20 Aug - 26 Aug United
20 Aug - 04 Sep United
22 Aug - 02 Sep American Airlines
30 Aug - 06 Sep jetBlue
23 Aug - 09 Sep United
21 Aug - 26 Aug United
22 Aug - 24 Aug KLM
23 Aug - 29 Aug United

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

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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