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

Return flights

16 Mar - 26 Mar	Norse Atlantic Airways (UK)
03 Mar - 10 Mar	Norse Atlantic Airways (UK)
07 Mar - 10 Mar	Ryanair
17 Mar - 31 Mar	Air Canada
24 Mar - 31 Mar	Air Canada
10 Mar - 24 Mar	Air Canada
03 Mar - 16 Mar	Air Canada
18 Mar - 02 Apr	KLM
07 Mar - 19 Mar	Avianca
26 Mar - 06 Apr	Avianca
03 Mar - 12 Mar	United
02 Mar - 23 Mar	United
20 Mar - 04 Apr	Air France
20 Mar - 05 Apr	Air France
26 Mar - 09 Apr	Avianca
20 Mar - 03 Apr	Avianca
21 Mar - 10 Apr	Avianca
30 Mar - 10 Apr	Avianca
31 Mar - 09 Apr	Avianca
26 Mar - 16 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.

Book a cheap hotel in San Jose

Cheap car rent in San Jose

Cheapest return flights from London to San Jose in March from $760

Return flights