Cheapest return flights from London to San Jose in December from $842

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

09 Dec - 23 Dec SWISS
02 Dec - 09 Dec KLM
11 Dec - 23 Dec SWISS
08 Dec - 25 Jan KLM
04 Dec - 22 Dec KLM
09 Dec - 13 Jan KLM
02 Dec - 20 Dec SWISS
01 Dec - 28 Dec KLM
02 Dec - 06 Jan KLM
01 Dec - 18 Dec SWISS
29 Dec - 14 Jan KLM
28 Dec - 13 Jan KLM
11 Dec - 19 Dec SWISS
02 Dec - 08 Jan SWISS
30 Dec - 15 Jan SWISS
11 Dec - 20 Dec SWISS
11 Dec - 18 Dec SWISS
03 Dec - 06 Jan KLM
29 Dec - 15 Jan SWISS
04 Dec - 06 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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