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

Return flights

20 Jun - 04 Jul	Air Canada
25 Jun - 04 Jul	Air Canada
15 Jun - 04 Jul	Air Canada
21 Jun - 04 Jul	Air Canada
14 Jun - 04 Jul	Air Canada
15 Jun - 06 Jul	Air France
18 Jun - 25 Jun	Air Canada
15 Jun - 29 Jun	Air Canada
19 Jun - 23 Jun	SWISS
09 Jun - 12 Jun	Air France
23 Jun - 29 Jun	Air Canada
13 Jun - 17 Jun	Air France
23 Jun - 21 Jul	KLM
12 Jun - 15 Jun	Air France
21 Jun - 28 Jun	Avianca
10 Jun - 17 Jun	Avianca
14 Jun - 21 Jun	Avianca
27 Jun - 04 Jul	Air Canada
30 Jun - 14 Jul	United
29 Jun - 06 Jul	United

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

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 June from $804

Return flights