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

Return flights

26 Sep - 25 Oct	Ryanair	direct
26 Sep - 04 Oct	Ryanair
26 Sep - 03 Oct	Ryanair
26 Sep - 29 Sep	Ryanair
20 Sep - 04 Oct	Norwegian Air Sweden AOC
26 Sep - 27 Sep	Ryanair
20 Sep - 27 Sep	Norwegian Air Sweden AOC
19 Sep - 21 Sep	Ryanair
26 Sep - 28 Sep	Ryanair
19 Sep - 22 Sep	Ryanair
24 Sep - 27 Sep	Ryanair
26 Sep - 08 Oct	Ryanair
20 Sep - 22 Sep	Norwegian Air Sweden AOC
26 Sep - 30 Sep	Ryanair
22 Sep - 29 Sep	Ryanair
26 Sep - 01 Oct	Ryanair
26 Sep - 14 Oct	Ryanair
30 Sep - 04 Oct	Air Europa
20 Sep - 16 Oct	Norwegian Air Sweden AOC
28 Sep - 04 Oct	Norwegian Air Sweden AOC

Also check the deals for one-way flights from Alicante 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 Alicante to Helsinki in September from 146€

Return flights