Cheapest return flights from London to San Jose in December from 841€

Best time to book flights for London (LCY) to San Jose (SJO) flights at AirHint

AirHint found the following cheapest return flights from London (LCY) to San Jose (SJO) in December 2025 (see full year).

Return flights

01 Dec - 10 Dec KLM
06 Dec - 16 Dec SWISS
02 Dec - 09 Dec SWISS
01 Dec - 11 Dec SWISS
02 Dec - 13 Dec SWISS
01 Dec - 13 Dec SWISS
10 Dec - 20 Dec KLM
06 Dec - 18 Dec KLM
09 Dec - 19 Dec KLM
01 Dec - 31 Dec SWISS
30 Dec - 15 Jan KLM
29 Dec - 13 Jan KLM
25 Dec - 15 Jan KLM
28 Dec - 13 Jan KLM
09 Dec - 08 Jan SWISS
23 Dec - 13 Jan KLM
16 Dec - 13 Jan KLM
26 Dec - 16 Jan KLM
16 Dec - 10 Jan ITA Airways
27 Dec - 17 Jan KLM

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

Skyscanner

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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