Cheapest return flights from Porto to Helsinki in October from $289

AirHint found the following cheapest return flights from Porto (OPO) to Helsinki (HEL) in October 2026 (see full year).

Return flights

24 Oct - 28 Oct Ryanair
09 Oct - 12 Oct Ryanair
31 Oct - 04 Nov Ryanair

Also check the deals for one-way flights from Porto to Helsinki in October.

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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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