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

Return flights

27 Jul - 17 Aug	TAP
23 Jul - 30 Jul	Lufthansa
23 Jul - 06 Aug	Lufthansa
20 Jul - 03 Aug	Lufthansa
20 Jul - 05 Aug	Lufthansa
14 Jul - 28 Jul	Lufthansa
14 Jul - 27 Jul	Lufthansa
01 Jul - 10 Jul	Air France
10 Jul - 17 Jul	Finnair
05 Jul - 19 Jul	Finnair
04 Jul - 18 Jul	Finnair
21 Jul - 31 Jul	Finnair
08 Jul - 16 Jul	Finnair
06 Jul - 13 Aug	Finnair
21 Jul - 15 Aug	Finnair
28 Jul - 10 Aug	KLM
01 Jul - 14 Jul	KLM
29 Jul - 12 Aug	Lufthansa
21 Jul - 04 Aug	KLM
26 Jul - 09 Aug	Avianca

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 724€

Return flights