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

Return flights

03 Jun - 14 Jun	Air France
01 Jun - 15 Jun	Air France
08 Jun - 19 Jun	Air France
08 Jun - 22 Jun	Air France
05 Jun - 07 Jul	Air France
04 Jun - 14 Jun	KLM
09 Jun - 19 Jun	KLM
01 Jun - 13 Jun	KLM
18 Jun - 07 Jul	SWISS
08 Jun - 20 Jun	Air France
14 Jun - 26 Jun	Air France
07 Jun - 21 Jun	Air France
23 Jun - 07 Jul	Air France
15 Jun - 12 Jul	Air France
25 Jun - 02 Jul	Air Canada
19 Jun - 11 Jul	Air Canada
26 Jun - 21 Jul	Air Canada
30 Jun - 28 Jul	Air Canada
23 Jun - 02 Jul	Avianca
19 Jun - 03 Jul	Air France

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from London to San Jose in June from $802

Return flights