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

Return flights

03 Mar - 10 Mar	Iberia
07 Mar - 14 Mar	Iberia
01 Mar - 04 Mar	Virgin Atlantic
15 Mar - 28 Mar	Air Canada
24 Mar - 16 Apr	Air Canada
24 Mar - 14 Apr	Air Canada
15 Mar - 02 Apr	Air Canada
20 Mar - 04 Apr	Air Canada
24 Mar - 04 Apr	Brussels Airlines
24 Mar - 15 Apr	Air Canada
03 Mar - 24 Mar	Air Canada
05 Mar - 14 Mar	Air Canada
04 Mar - 30 Mar	Air Canada
19 Mar - 29 Mar	Air Canada
03 Mar - 12 Mar	Air Canada
02 Mar - 23 Mar	Lufthansa
30 Mar - 14 Apr	Air Canada
23 Mar - 16 Apr	Lufthansa
31 Mar - 14 Apr	Air Canada
21 Mar - 04 Apr	Air Canada

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 609€

Return flights