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

Return flights

15 Dec - 31 Dec	Delta
24 Dec - 10 Jan	British Airways
17 Dec - 10 Jan	British Airways
09 Dec - 01 Jan	KLM
19 Dec - 04 Jan	Norwegian Air Sweden AOC
17 Dec - 02 Jan	British Airways
20 Dec - 03 Jan	British Airways

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

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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Cheapest return flights from Copenhagen to San Jose in December from 1157€

Return flights