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

Return flights

10 Jun - 30 Jun	Air France
05 Jun - 07 Jun	Air France
08 Jun - 14 Jun	Air France
01 Jun - 07 Jun	Air France
08 Jun - 18 Jun	Air France
11 Jun - 25 Jun	KLM
18 Jun - 09 Jul	KLM
06 Jun - 22 Jun	KLM
04 Jun - 14 Jun	KLM
09 Jun - 23 Jun	KLM
06 Jun - 19 Jun	KLM
19 Jun - 12 Jul	KLM
20 Jun - 04 Jul	KLM
21 Jun - 12 Jul	Air France
22 Jun - 13 Jul	KLM
24 Jun - 09 Jul	Air France
14 Jun - 23 Jul	Iberia
28 Jun - 19 Jul	Air Canada
25 Jun - 13 Jul	KLM
27 Jun - 08 Jul	Air Canada

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 619€

Return flights