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

Return flights

07 Dec - 23 Dec	Air France
07 Dec - 24 Dec	Air France
07 Dec - 25 Dec	Air France
07 Dec - 27 Dec	Air France
07 Dec - 22 Dec	Air France
07 Dec - 26 Dec	SWISS
08 Dec - 23 Dec	Air France
06 Dec - 27 Dec	KLM
06 Dec - 22 Dec	KLM
27 Dec - 16 Jan	British Airways
22 Dec - 31 Dec	Vueling Airlines
18 Dec - 10 Jan	British Airways
18 Dec - 09 Jan	British Airways
27 Dec - 09 Jan	British Airways
21 Dec - 04 Jan	Vueling Airlines
22 Dec - 04 Jan	Vueling Airlines
21 Dec - 05 Jan	Vueling Airlines
22 Dec - 05 Jan	SWISS
20 Dec - 05 Jan	KLM
20 Dec - 03 Jan	Iberia

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to San Jose in December from 565€

Return flights