AirHint found the following cheapest one-way flights from Tromso (TOS) to Helsinki (HEL) in October 2025 (see full year).

One-Way flights

06 Oct	Norwegian
22 Oct	Scandinavian Airlines
20 Oct	Scandinavian Airlines
27 Oct	Scandinavian Airlines
31 Oct	Scandinavian Airlines
11 Oct	Wizz Air
19 Oct	Norwegian
12 Oct	Scandinavian Airlines
24 Oct	Scandinavian Airlines
04 Oct	Scandinavian Airlines

Also check the deals for return flights from Tromso 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 one-way flights from Tromso to Helsinki in October from $79

One-Way flights