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

Return flights

24 Sep - 30 Sep	KLM
25 Sep - 29 Sep	KLM
26 Sep - 29 Sep	KLM
24 Sep - 01 Oct	KLM
22 Sep - 01 Oct	easyJet
25 Sep - 01 Oct	KLM
25 Sep - 30 Sep	KLM
24 Sep - 29 Sep	KLM
26 Sep - 30 Sep	KLM
30 Sep - 06 Oct	KLM
22 Sep - 29 Sep	easyJet
27 Sep - 01 Oct	Lufthansa
15 Sep - 01 Oct	Lufthansa
22 Sep - 24 Sep	easyJet
20 Sep - 23 Sep	KLM
16 Sep - 23 Sep	Air France
26 Sep - 02 Oct	Lufthansa
25 Sep - 04 Oct	Lufthansa
25 Sep - 03 Oct	easyJet
25 Sep - 02 Oct	KLM

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 183€

Return flights