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

Return flights

22 Jul - 05 Aug	KLM
29 Jul - 13 Aug	Air Dolomiti
09 Jul - 26 Jul	SWISS
06 Jul - 20 Jul	KLM
21 Jul - 05 Aug	SWISS
22 Jul - 29 Jul	Lufthansa
29 Jul - 05 Aug	Air Dolomiti
02 Jul - 16 Jul	Lufthansa
08 Jul - 22 Jul	Lufthansa
08 Jul - 15 Jul	Lufthansa
09 Jul - 16 Jul	SWISS
03 Jul - 18 Jul	KLM
25 Jul - 01 Aug	SWISS
29 Jul - 26 Aug	Lufthansa
31 Jul - 09 Aug	Lufthansa
27 Jul - 17 Aug	Air Dolomiti
21 Jul - 01 Aug	SWISS
16 Jul - 01 Aug	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 1087€

Return flights