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

Return flights

04 Dec - 10 Dec	TAP
04 Dec - 08 Dec	TAP
02 Dec - 08 Dec	TAP
03 Dec - 09 Dec	TAP
04 Dec - 09 Dec	TAP
06 Dec - 11 Dec	TAP
06 Dec - 08 Dec	TAP
08 Dec - 11 Dec	Scandinavian Airlines
09 Dec - 16 Dec	Vueling Airlines
08 Dec - 14 Dec	Scandinavian Airlines
09 Dec - 08 Jan	TAP
06 Dec - 07 Jan	TAP
23 Dec - 01 Jan	Vueling Airlines
25 Dec - 05 Jan	Vueling Airlines
31 Dec - 08 Jan	TAP
26 Dec - 04 Jan	Scandinavian Airlines
26 Dec - 08 Jan	Scandinavian Airlines
31 Dec - 06 Jan	Vueling Airlines
30 Dec - 06 Jan	TAP
22 Dec - 04 Jan	Scandinavian Airlines

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 $406

Return flights