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

Return flights

02 Dec - 18 Jan	KLM	direct
02 Dec - 16 Jan	KLM	direct
02 Dec - 12 Jan	KLM
02 Dec - 11 Jan	KLM
12 Dec - 21 Jan	Avianca
02 Dec - 07 Jan	KLM	direct
05 Dec - 09 Jan	Avianca
02 Dec - 09 Jan	KLM	direct
02 Dec - 12 Dec	KLM
12 Dec - 02 Jan	KLM
17 Dec - 20 Jan	KLM	direct
21 Dec - 30 Dec	KLM	direct
02 Dec - 15 Dec	KLM
02 Dec - 15 Dec	KLM	direct
12 Dec - 24 Dec	KLM
15 Dec - 21 Dec	KLM
05 Dec - 19 Dec	Iberia
15 Dec - 21 Dec	KLM	direct
14 Dec - 20 Dec	Delta

Also check the deals for one-way flights from San Jose to Amsterdam 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 Amsterdam in December from 798€

Return flights