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

Return flights

01 Jul - 15 Jul	Air Dolomiti
20 Jul - 26 Jul	Lufthansa
21 Jul - 04 Aug	SWISS
01 Jul - 31 Jul	Lufthansa
20 Jul - 05 Aug	Lufthansa
14 Jul - 25 Jul	SWISS
23 Jul - 06 Aug	SWISS
20 Jul - 01 Aug	KLM
10 Jul - 20 Jul	KLM
06 Jul - 01 Aug	Lufthansa
11 Jul - 23 Jul	KLM
10 Jul - 26 Jul	Lufthansa
21 Jul - 28 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 759€

Return flights