Cheapest one-way flights from Oslo to Helsinki in May from 29€

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 May 2025 (see full year).

One-Way flights

05 May Norwegian direct
28 May Norwegian direct
18 May Norwegian direct
16 May Norwegian direct
11 May Norwegian direct
10 May airBaltic
17 May airBaltic
10 May Finnair direct
17 May Finnair direct

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

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