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

Return flights

30 Dec - 04 Jan	Iberia
30 Dec - 03 Jan	Iberia
30 Dec - 07 Jan	Iberia
30 Dec - 02 Jan	Iberia
30 Dec - 01 Jan	Iberia
31 Dec - 06 Jan	Vueling Airlines
31 Dec - 07 Jan	Vueling Airlines
31 Dec - 05 Jan	Vueling Airlines
31 Dec - 04 Jan	Vueling Airlines
31 Dec - 02 Jan	Vueling Airlines
28 Dec - 31 Dec	Air France
28 Dec - 30 Dec	Air France
28 Dec - 31 Dec	KLM	direct
28 Dec - 29 Dec	Air France
30 Dec - 31 Dec	Vueling Airlines
29 Dec - 29 Dec	Vueling Airlines
28 Dec - 30 Dec	KLM	direct
28 Dec - 29 Dec	KLM	direct

Also check the deals for one-way flights from Bilbao 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 Bilbao to Amsterdam in December from $231

Return flights