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

Return flights

11 Dec - 14 Dec	Wizz Air Malta
11 Dec - 15 Dec	Wizz Air Malta
04 Dec - 09 Dec	Lufthansa
10 Dec - 14 Dec	Iberia Express
04 Dec - 08 Dec	Ryanair
04 Dec - 07 Dec	airBaltic
12 Dec - 16 Dec	Wizz Air Malta
05 Dec - 08 Dec	Scandinavian Airlines
17 Dec - 23 Dec	Lufthansa
07 Dec - 13 Dec	Ryanair
30 Dec - 12 Jan	Lufthansa
29 Dec - 04 Jan	Iberia Express
20 Dec - 01 Jan	Iberia
26 Dec - 04 Jan	Iberia
28 Dec - 04 Jan	KLM
27 Dec - 01 Jan	Iberia
28 Dec - 02 Jan	Lufthansa
27 Dec - 02 Jan	Iberia
27 Dec - 03 Jan	Iberia
30 Dec - 12 Jan	Iberia	direct

Also check the deals for one-way flights from Madrid to Helsinki 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 Helsinki in December from $193

Return flights