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

Return flights

09 Mar - 16 Mar	SWISS
03 Mar - 10 Mar	Virgin Atlantic
11 Mar - 18 Mar	KLM
10 Mar - 17 Mar	SWISS
07 Mar - 17 Mar	SWISS
04 Mar - 10 Mar	SWISS
04 Mar - 17 Mar	SWISS
03 Mar - 09 Mar	KLM
05 Mar - 09 Mar	SWISS
02 Mar - 11 Mar	SWISS
24 Mar - 14 Apr	KLM
09 Mar - 01 Apr	SWISS
19 Mar - 01 Apr	Lufthansa
31 Mar - 14 Apr	SWISS
29 Mar - 13 Apr	KLM
24 Mar - 01 Apr	SWISS
16 Mar - 04 Apr	Lufthansa
16 Mar - 11 Apr	Iberia
24 Mar - 07 Apr	SWISS
22 Mar - 06 Apr	KLM

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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from London to San Jose in March from 743€

Return flights