Cheapest one-way flights from Stockholm to Helsinki in September from 26€

AirHint found the following cheapest one-way flights from Stockholm (ARN) to Helsinki (HEL) in September 2025 (see full year).

One-Way flights

11 Sep Norwegian Air Sweden AOC direct
21 Sep Norwegian Air Sweden AOC direct
17 Sep Norwegian Air Sweden AOC direct
24 Sep Norwegian Air Sweden AOC direct
29 Sep Norwegian Air Sweden AOC direct
01 Sep Norwegian Air Sweden AOC direct
25 Sep Norwegian Air Sweden AOC direct
16 Sep Norwegian Air Sweden AOC direct
10 Sep Norwegian Air Sweden AOC direct
02 Sep Norwegian Air Sweden AOC direct

Also check the deals for return flights from Stockholm to Helsinki in September.

Skyscanner

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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