AirHint found the following cheapest one-way flights from Madrid (MAD) to Dublin (DUB) in December 2025 (see full year).

One-Way flights

13 Dec	Iberia Express	direct
20 Dec	Iberia Express	direct
17 Dec	Iberia Express	direct
11 Dec	Iberia Express	direct
10 Dec	Iberia Express	direct
23 Dec	Iberia Express	direct
15 Dec	Iberia Express	direct
24 Dec	Iberia Express	direct
19 Dec	Iberia Express	direct
14 Dec	Iberia Express	direct

Also check the deals for return flights from Madrid to Dublin 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 one-way flights from Madrid to Dublin in December from $41

One-Way flights