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

Return flights

21 Aug - 30 Aug	SWISS
29 Aug - 06 Sep	SWISS
20 Aug - 30 Aug	SWISS
23 Aug - 27 Sep	Air France
18 Aug - 15 Sep	SWISS
18 Aug - 30 Aug	SWISS
29 Aug - 10 Sep	SWISS
31 Aug - 10 Sep	Lufthansa
18 Aug - 25 Aug	SWISS
24 Aug - 02 Sep	Air Canada
17 Aug - 30 Aug	Lufthansa
13 Aug - 30 Aug	Lufthansa
22 Aug - 29 Aug	SWISS
13 Aug - 27 Aug	Lufthansa
13 Aug - 20 Sep	Lufthansa
30 Aug - 10 Sep	Lufthansa
28 Aug - 11 Sep	SWISS
18 Aug - 01 Sep	SWISS
02 Aug - 15 Aug	Air Canada
17 Aug - 29 Aug	United

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

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from London to San Jose in August from 662€

Return flights