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

Return flights

27 Aug - 06 Sep	Air France
27 Aug - 04 Sep	Air Canada
28 Aug - 04 Sep	Air Canada
29 Aug - 04 Sep	Air Canada
20 Aug - 01 Sep	SWISS
21 Aug - 05 Sep	Air France
04 Aug - 24 Aug	Air Canada
06 Aug - 24 Aug	Air Canada
30 Aug - 04 Sep	Air France
07 Aug - 27 Aug	Air Canada
03 Aug - 10 Aug	Air Canada
03 Aug - 17 Aug	Air Canada
16 Aug - 30 Aug	Air France
07 Aug - 23 Aug	Avianca
07 Aug - 20 Aug	Avianca
16 Aug - 23 Aug	Air France
02 Aug - 23 Aug	Air Canada

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.

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Cheapest return flights from London to San Jose in August from $1032

Return flights