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

Return flights

05 Jun - 15 Jun	Air France
12 Jun - 30 Jun	Air France
19 Jun - 30 Jun	Air France
08 Jun - 06 Jul	Air France
05 Jun - 19 Jun	Air France
09 Jun - 23 Jun	KLM
17 Jun - 01 Jul	Air France
11 Jun - 21 Jun	KLM
02 Jun - 12 Jun	KLM
01 Jun - 15 Jun	KLM
16 Jun - 30 Jun	KLM
01 Jun - 14 Jun	KLM
18 Jun - 09 Jul	KLM
24 Jun - 09 Jul	Avianca
23 Jun - 28 Jul	Avianca
14 Jun - 01 Jul	Avianca
23 Jun - 21 Jul	Avianca
22 Jun - 03 Jul	Avianca
16 Jun - 03 Jul	Avianca
23 Jun - 05 Jul	Avianca

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 669€

Return flights