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

Return flights

10 Mar - 21 Mar	Ryanair
13 Mar - 28 Mar	Air Canada
18 Mar - 28 Mar	Air Canada
22 Mar - 05 Apr	Air Canada
03 Mar - 14 Mar	Air Canada
01 Mar - 11 Mar	Air Canada
01 Mar - 15 Mar	Air Canada
29 Mar - 15 Apr	Air Canada
20 Mar - 03 Apr	Air Canada
20 Mar - 05 Apr	Air Canada
09 Mar - 21 Mar	Brussels Airlines
16 Mar - 01 Apr	Brussels Airlines
14 Mar - 28 Mar	Brussels Airlines
16 Mar - 28 Mar	Brussels Airlines
02 Mar - 07 Mar	Iberia
28 Mar - 15 Apr	Air Canada
24 Mar - 07 Apr	SWISS
28 Mar - 05 Apr	Air Canada
27 Mar - 14 Apr	Lufthansa
30 Mar - 06 Apr	Lufthansa

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

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 March from 629€

Return flights