AirHint found the following cheapest return flights from San Jose (SJC) to Berlin (BER) in December 2025 (see full year).

Return flights

08 Dec - 23 Dec	Delta
31 Dec - 14 Jan	Scandinavian Airlines
23 Dec - 17 Jan	SWISS
21 Dec - 10 Jan	Alaska Airlines
10 Dec - 15 Dec	Icelandair
23 Dec - 30 Dec	Frontier Airlines
20 Dec - 10 Jan	Hawaiian Airlines
19 Dec - 10 Jan	Hawaiian Airlines
15 Dec - 29 Dec	Alaska Airlines
14 Dec - 28 Dec	Alaska Airlines
15 Dec - 10 Jan	Scandinavian Airlines
25 Dec - 05 Jan	Condor
17 Dec - 02 Jan	Alaska Airlines
16 Dec - 30 Dec	British Airways
13 Dec - 04 Jan	Alaska Airlines
21 Dec - 04 Jan	Icelandair

Also check the deals for one-way flights from San Jose to Berlin 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 San Jose to Berlin in December from $806

Return flights