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

Return flights

03 Dec - 10 Dec	TAP
05 Dec - 09 Dec	TAP
05 Dec - 08 Dec	TAP
05 Dec - 12 Dec	TAP
02 Dec - 09 Dec	TAP
04 Dec - 11 Dec	TAP
09 Dec - 11 Jan	Scandinavian Airlines
09 Dec - 16 Dec	Spirit Airlines
31 Dec - 24 Jan	Air Europa
10 Dec - 17 Dec	TAP
11 Dec - 17 Dec	TAP
24 Dec - 17 Jan	TAP
10 Dec - 10 Jan	Scandinavian Airlines
03 Dec - 17 Dec	TAP
30 Dec - 15 Jan	Iberia	direct
30 Dec - 13 Jan	Iberia	direct
28 Dec - 17 Jan	Iberia
24 Dec - 07 Jan	Scandinavian Airlines
29 Dec - 11 Jan	Iberia
28 Dec - 17 Jan	Iberia	direct

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 $394

Return flights