AirHint found the following cheapest return flights from Billund (BLL) to Helsinki (HEL) in October 2025 (see full year).

Return flights

21 Oct - 28 Oct	Scandinavian Airlines
20 Oct - 27 Oct	Scandinavian Airlines
08 Oct - 11 Oct	Scandinavian Airlines
30 Oct - 06 Nov	Scandinavian Airlines
04 Oct - 07 Oct	Scandinavian Airlines
13 Oct - 15 Oct	Norwegian
19 Oct - 26 Oct	Scandinavian Airlines
15 Oct - 19 Oct	Scandinavian Airlines
18 Oct - 25 Oct	Scandinavian Airlines
17 Oct - 19 Oct	airBaltic
13 Oct - 19 Oct	Scandinavian Airlines

Also check the deals for one-way flights from Billund to Helsinki in October.

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 Billund to Helsinki in October from 144€

Return flights