Cheapest one-way flights from Oslo to Helsinki in October from $51

Best time to book flights for Oslo (OSL) to Helsinki (HEL) flights at AirHint

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

One-Way flights

09 Oct Norwegian direct
07 Oct Norwegian direct
26 Oct Norwegian direct
08 Oct Norwegian direct
12 Oct Norwegian direct
19 Oct Norwegian direct
22 Oct Finnair direct
11 Oct airBaltic
29 Oct airBaltic
28 Oct airBaltic

Also check the deals for return flights from Oslo to Helsinki in October.

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.

Book a cheap hotel in Helsinki

Cheap car rent in Helsinki