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

Return flights

03 Mar - 19 Mar	Ryanair
16 Mar - 30 Mar	Ryanair
03 Mar - 14 Mar	Ryanair
08 Mar - 18 Mar	Ryanair
12 Mar - 21 Mar	Ryanair
09 Mar - 13 Mar	Ryanair
28 Mar - 10 Apr	Ryanair
29 Mar - 12 Apr	Ryanair
28 Mar - 08 Apr	Ryanair
29 Mar - 09 Apr	Ryanair
29 Mar - 11 Apr	Ryanair
26 Mar - 10 Apr	Ryanair
27 Mar - 10 Apr	Ryanair
27 Mar - 12 Apr	Ryanair
24 Mar - 04 Apr	Ryanair
27 Mar - 11 Apr	Ryanair
14 Mar - 28 Mar	Ryanair

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 749€

Return flights