AirHint found the following cheapest return flights from London (LCY) to San Jose (SJO) in July 2025 (see full year).

Return flights

03 Jul - 16 Jul	SWISS
01 Jul - 10 Jul	SWISS
07 Jul - 19 Jul	Lufthansa
03 Jul - 13 Jul	SWISS
22 Jul - 29 Jul	SWISS
10 Jul - 24 Jul	SWISS
08 Jul - 12 Aug	SWISS
10 Jul - 07 Aug	SWISS
15 Jul - 26 Jul	SWISS
16 Jul - 10 Aug	Lufthansa
22 Jul - 27 Jul	SWISS
17 Jul - 27 Jul	SWISS
29 Jul - 10 Aug	SWISS
29 Jul - 13 Aug	SWISS
29 Jul - 12 Aug	SWISS
29 Jul - 05 Aug	SWISS
24 Jul - 06 Aug	SWISS
24 Jul - 05 Aug	SWISS
29 Jul - 14 Aug	SWISS
08 Jul - 10 Jul	SWISS

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

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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Cheapest return flights from London to San Jose in July from $1160

Return flights