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

Return flights

19 Oct - 06 Nov	Ryanair	direct
12 Oct - 16 Oct	Ryanair	direct
19 Oct - 23 Oct	Ryanair	direct
12 Oct - 27 Oct	Ryanair	direct
12 Oct - 15 Oct	Ryanair
19 Oct - 27 Oct	Ryanair	direct
09 Oct - 16 Oct	Ryanair	direct
05 Oct - 16 Oct	Ryanair	direct
05 Oct - 09 Oct	Ryanair
16 Oct - 22 Oct	Ryanair
11 Oct - 17 Oct	Ryanair
27 Oct - 05 Nov	TAP
30 Oct - 03 Nov	Ryanair
30 Oct - 02 Nov	Ryanair
31 Oct - 03 Nov	Ryanair
29 Oct - 03 Nov	Ryanair
27 Oct - 01 Nov	Ryanair
27 Oct - 02 Nov	Ryanair
30 Oct - 03 Nov	Ryanair	direct
20 Oct - 10 Nov	Vueling Airlines

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

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 Stockholm to Porto in October from $101

Return flights