Cheapest return flights from Porto to Helsinki in October from $201

Best time to book flights for Porto (OPO) to Helsinki (HEL) flights at AirHint

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

Return flights

14 Oct - 20 Oct Ryanair
16 Oct - 22 Oct KLM

Also check the deals for one-way flights from Porto 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.

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