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

Return flights

13 Oct - 21 Oct	easyJet
30 Oct - 03 Nov	easyJet
01 Oct - 08 Oct	Transavia France
09 Oct - 16 Oct	Transavia France
23 Oct - 30 Oct	Ryanair
10 Oct - 12 Oct	Transavia France
07 Oct - 12 Oct	Ryanair
14 Oct - 19 Oct	Transavia France
12 Oct - 17 Oct	Transavia France
12 Oct - 19 Oct	Transavia France
06 Oct - 12 Oct	easyJet

Also check the deals for one-way flights from Porto to Heraklion 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 Porto to Heraklion in October from 170€

Return flights