Cheapest one-way flights from London to San Jose in December from $461

AirHint found the following cheapest one-way flights from London (LHR) to San Jose (SJO) in December 2025 (see full year).

One-Way flights

06 Dec KLM
11 Dec Vueling Airlines
30 Dec Aer Lingus
15 Dec Vueling Airlines
16 Dec Vueling Airlines
31 Dec Aer Lingus
29 Dec KLM
23 Dec Air France
24 Dec KLM
12 Dec jetBlue

Also check the deals for return 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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