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

Return flights

05 Dec - 27 Jan	TAP
07 Dec - 12 Dec	TAP
06 Dec - 12 Dec	TAP
05 Dec - 11 Dec	TAP
05 Dec - 10 Dec	TAP
05 Dec - 09 Dec	TAP
15 Dec - 20 Jan	Iberia
10 Dec - 14 Jan	TAP
03 Dec - 09 Dec	TAP
10 Dec - 09 Jan	Iberia
07 Dec - 15 Dec	KLM
02 Dec - 09 Dec	KLM
02 Dec - 10 Dec	KLM
14 Dec - 08 Jan	Delta
11 Dec - 08 Jan	Delta
02 Dec - 23 Jan	Delta
16 Dec - 17 Jan	Iberia
02 Dec - 07 Dec	Delta
11 Dec - 09 Jan	Delta
12 Dec - 09 Jan	KLM

Also check the deals for one-way flights from Madrid 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 Madrid to Miami in December from $424

Return flights