AirHint found the following cheapest return flights from Milan (LIN) to Helsinki (HEL) in September 2025 (see full year).

Return flights

13 Sep - 14 Sep	Finnair	direct
13 Sep - 20 Sep	Finnair	direct
06 Sep - 13 Sep	Finnair	direct
13 Sep - 30 Sep	Lufthansa
24 Sep - 30 Sep	Lufthansa
25 Sep - 30 Sep	Lufthansa
11 Sep - 16 Sep	Lufthansa
19 Sep - 23 Sep	Lufthansa
18 Sep - 23 Sep	Lufthansa
29 Sep - 01 Oct	easyJet
20 Sep - 21 Sep	Finnair	direct
30 Sep - 05 Oct	KLM
29 Sep - 03 Oct	KLM
27 Sep - 01 Oct	Finnair
28 Sep - 01 Oct	easyJet

Also check the deals for one-way flights from Milan to Helsinki in September.

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 Milan to Helsinki in September from 170€

Return flights