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

Return flights

31 Dec - 12 Jan	British Airways
31 Dec - 14 Jan	British Airways
31 Dec - 14 Jan	Finnair	direct
28 Dec - 11 Jan	Iberia
28 Dec - 10 Jan	Iberia
26 Dec - 12 Jan	TAP
25 Dec - 12 Jan	ITA Airways
25 Dec - 10 Jan	ITA Airways
29 Dec - 11 Jan	British Airways
24 Dec - 14 Jan	LEVEL	direct
24 Dec - 31 Dec	Iberia
16 Dec - 25 Dec	ITA Airways
15 Dec - 22 Dec	Air France
17 Dec - 24 Dec	ITA Airways
24 Dec - 28 Dec	Iberia
24 Dec - 27 Dec	Iberia
17 Dec - 23 Dec	Air Canada
18 Dec - 25 Dec	ITA Airways
14 Dec - 18 Dec	Air Europa
14 Dec - 27 Dec	Air Europa

Also check the deals for one-way flights from Miami to Barcelona 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 Miami to Barcelona in December from $567

Return flights