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

Return flights

12 Dec - 19 Dec	TAP
05 Dec - 19 Dec	TAP
12 Dec - 31 Dec	TAP
05 Dec - 14 Dec	TAP
16 Dec - 07 Jan	TAP
05 Dec - 07 Dec	Scandinavian Airlines
13 Dec - 11 Jan	TAP
14 Dec - 28 Dec	Scandinavian Airlines
14 Dec - 11 Jan	TAP
12 Dec - 11 Jan	TAP
14 Dec - 29 Dec	Scandinavian Airlines
11 Dec - 18 Dec	Scandinavian Airlines
17 Dec - 31 Dec	TAP
17 Dec - 28 Dec	TAP
29 Dec - 09 Jan	TAP
28 Dec - 07 Jan	TAP
16 Dec - 06 Jan	TAP
16 Dec - 01 Jan	TAP
19 Dec - 06 Jan	TAP
16 Dec - 05 Jan	TAP

Also check the deals for one-way flights from Dublin 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 Dublin to Miami in December from $392

Return flights