AirHint found the following cheapest return flights from Porto (OPO) to Athens (ATH) in July 2025 (see full year).

Return flights

07 Jul - 08 Jul	easyJet
21 Jul - 25 Jul	Ryanair
16 Jul - 25 Jul	Vueling Airlines
02 Jul - 08 Jul	easyJet
22 Jul - 05 Aug	Wizz Air Malta
20 Jul - 28 Jul	Ryanair
29 Jul - 07 Aug	Wizz Air Malta
16 Jul - 23 Jul	Vueling Airlines
17 Jul - 05 Aug	Ryanair
18 Jul - 24 Jul	Ryanair
21 Jul - 27 Jul	Ryanair
11 Jul - 18 Jul	Transavia France
23 Jul - 30 Jul	Ryanair
29 Jul - 05 Aug	Ryanair
29 Jul - 03 Aug	easyJet
25 Jul - 02 Aug	Ryanair
25 Jul - 03 Aug	Ryanair
26 Jul - 02 Aug	Ryanair
29 Jul - 02 Aug	Wizz Air Malta
24 Jul - 02 Aug	Ryanair

Also check the deals for one-way flights from Porto to Athens in July.

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 Athens in July from 240€

Return flights