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

Return flights

24 Sep - 01 Oct	Lufthansa
29 Sep - 01 Oct	easyJet
24 Sep - 30 Sep	KLM
19 Sep - 22 Sep	KLM
20 Sep - 01 Oct	Air France
22 Sep - 01 Oct	easyJet
20 Sep - 21 Sep	Finnair	direct
26 Sep - 30 Sep	Lufthansa
17 Sep - 24 Sep	Lufthansa
27 Sep - 01 Oct	Lufthansa
20 Sep - 22 Sep	KLM
19 Sep - 21 Sep	easyJet
18 Sep - 23 Sep	KLM
19 Sep - 23 Sep	KLM
26 Sep - 29 Sep	KLM
17 Sep - 06 Oct	easyJet
30 Sep - 04 Oct	KLM
26 Sep - 13 Oct	Lufthansa
26 Sep - 05 Oct	Lufthansa
30 Sep - 08 Oct	Lufthansa

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 $209

Return flights