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

Return flights

29 Aug - 08 Sep	Ryanair
31 Aug - 02 Sep	Air Europa
25 Aug - 01 Sep	Ryanair
29 Aug - 02 Sep	Ryanair
30 Aug - 03 Sep	Iberia Express
26 Aug - 02 Sep	Iberia
29 Aug - 03 Sep	KLM
28 Aug - 03 Sep	KLM
28 Aug - 04 Sep	KLM
31 Aug - 05 Sep	Air Europa
19 Aug - 20 Aug	Iberia
26 Aug - 28 Aug	Iberia
21 Aug - 27 Aug	Iberia
22 Aug - 26 Aug	Iberia
22 Aug - 25 Aug	Iberia
29 Aug - 31 Aug	Ryanair
21 Aug - 26 Aug	Iberia
28 Aug - 31 Aug	Wizz Air Malta
19 Aug - 25 Aug	Iberia
25 Aug - 27 Aug	Air Europa

Also check the deals for one-way flights from Madrid to Helsinki in August.

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 August from $245

Return flights