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

Return flights

12 May - 19 May	Icelandair
10 May - 19 May	Icelandair
02 May - 09 May	Icelandair
05 May - 13 May	Icelandair
05 May - 14 May	Icelandair
12 May - 26 May	Icelandair
13 May - 20 May	SWISS
07 May - 18 May	SWISS
13 May - 27 May	SWISS
28 May - 10 Jun	SWISS
10 May - 20 May	SWISS
29 May - 12 Jun	Air France
03 May - 14 Jun	Air France
28 May - 07 Jun	Air France
26 May - 03 Jun	Air France
19 May - 19 Jun	Air France
18 May - 08 Jun	Air France
21 May - 01 Jun	Air France
16 May - 06 Jun	easyJet
29 May - 05 Jun	Air France

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

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 May from 626€

Return flights