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

Return flights

20 Nov - 22 Nov	Ryanair
19 Nov - 22 Nov	Ryanair
26 Nov - 28 Nov	Ryanair
22 Nov - 26 Nov	Ryanair
26 Nov - 29 Nov	Ryanair
20 Nov - 24 Nov	Ryanair
19 Nov - 21 Nov	Ryanair
13 Nov - 14 Nov	Ryanair
21 Nov - 24 Nov	Ryanair
16 Nov - 22 Nov	Ryanair
27 Nov - 04 Dec	Ryanair
22 Nov - 01 Dec	Ryanair
26 Nov - 02 Dec	Ryanair
28 Nov - 03 Dec	Ryanair
26 Nov - 01 Dec	Ryanair
29 Nov - 08 Dec	Ryanair
28 Nov - 01 Dec	Ryanair

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

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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Cheapest return flights from Porto to Helsinki in November from 145€

Return flights