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

Return flights

18 Aug - 02 Sep	Ryanair
26 Aug - 09 Sep	Ryanair
28 Aug - 11 Sep	Ryanair
08 Aug - 11 Aug	Ryanair
30 Aug - 14 Sep	Ryanair
01 Aug - 04 Aug	Ryanair
04 Aug - 08 Aug	Ryanair
26 Aug - 02 Sep	Ryanair
21 Aug - 07 Sep	Ryanair
22 Aug - 31 Aug	Ryanair
02 Aug - 05 Aug	Ryanair
02 Aug - 07 Aug	Ryanair
30 Aug - 06 Sep	Ryanair
21 Aug - 11 Sep	Ryanair
21 Aug - 04 Sep	Ryanair
02 Aug - 09 Aug	Ryanair
23 Aug - 02 Sep	Ryanair
20 Aug - 30 Aug	Ryanair
16 Aug - 19 Aug	Ryanair
12 Aug - 19 Aug	Ryanair

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 795€

Return flights