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

Return flights

08 Apr - 29 Apr	Air Canada
08 Apr - 22 Apr	Air Canada
08 Apr - 20 Apr	Air Canada
12 Apr - 19 Apr	SWISS
09 Apr - 21 Apr	Air Canada
17 Apr - 01 May	Air Canada
25 Apr - 09 May	Brussels Airlines
09 Apr - 20 Apr	Air Canada
11 Apr - 19 Apr	Air Canada
01 Apr - 29 Apr	Air Canada
10 Apr - 20 Apr	Air Canada
01 Apr - 19 Apr	Air Canada
17 Apr - 03 May	Air Canada
30 Apr - 17 May	Lufthansa
07 Apr - 05 May	Lufthansa
16 Apr - 03 May	Air Canada
16 Apr - 02 May	Air Canada

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

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 April from 651€

Return flights