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

Return flights

05 Dec - 10 Dec	Scandinavian Airlines
02 Dec - 09 Dec	TAP
26 Dec - 01 Jan	Scandinavian Airlines
01 Dec - 10 Dec	Scandinavian Airlines
05 Dec - 11 Dec	Scandinavian Airlines
04 Dec - 09 Dec	TAP
25 Dec - 31 Dec	Vueling Airlines
04 Dec - 08 Dec	Vueling Airlines
01 Dec - 06 Dec	Vueling Airlines
29 Dec - 08 Jan	Scandinavian Airlines
11 Dec - 14 Dec	TAP
11 Dec - 15 Dec	TAP
24 Dec - 06 Jan	TAP
25 Dec - 06 Jan	TAP
28 Dec - 08 Jan	TAP
27 Dec - 07 Jan	TAP
31 Dec - 08 Jan	TAP
29 Dec - 02 Jan	TAP
30 Dec - 04 Jan	Vueling Airlines
28 Dec - 02 Jan	Lufthansa

Also check the deals for one-way flights from Bilbao to Newark 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 Newark in December from 350€

Return flights