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

Return flights

02 Dec - 12 Dec	TAP
21 Dec - 31 Dec	Vueling Airlines
31 Dec - 21 Jan	Iberia For Level
22 Dec - 31 Dec	Vueling Airlines
19 Dec - 27 Dec	Iberia For Level
19 Dec - 28 Dec	Iberia For Level
14 Dec - 19 Dec	Iberia For Level
19 Dec - 29 Dec	Vueling Airlines
19 Dec - 30 Dec	Vueling Airlines
27 Dec - 08 Jan	Iberia
20 Dec - 02 Jan	Vueling Airlines
20 Dec - 30 Dec	Vueling Airlines

Also check the deals for one-way flights from Bilbao to Miami 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 Miami in December from $406

Return flights