Cheapest return flights from London to San Jose in December from $1119

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

Return flights

02 Dec - 16 Dec SWISS
03 Dec - 10 Dec Lufthansa
03 Dec - 14 Dec KLM
30 Dec - 13 Jan SWISS
03 Dec - 11 Dec Lufthansa
05 Dec - 17 Dec Lufthansa
31 Dec - 11 Jan KLM
23 Dec - 30 Dec SWISS
30 Dec - 07 Jan KLM
30 Dec - 06 Jan SWISS
04 Dec - 08 Jan SWISS
08 Dec - 08 Jan SWISS
16 Dec - 31 Dec KLM
29 Dec - 11 Jan KLM
23 Dec - 11 Jan KLM
17 Dec - 31 Dec KLM
05 Dec - 13 Dec Lufthansa
05 Dec - 05 Jan KLM
22 Dec - 22 Jan SWISS
04 Dec - 21 Dec British Airways

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

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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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