AirHint found the following cheapest return flights from Porto (OPO) to Athens (ATH) in July 2026 (see full year).

Return flights

15 Jul - 16 Jul	Iberia
08 Jul - 15 Jul	Iberia
01 Jul - 08 Jul	Iberia
17 Jul - 21 Jul	Ryanair
05 Jul - 25 Jul	TAP
14 Jul - 15 Jul	Iberia
11 Jul - 19 Jul	TAP
09 Jul - 19 Jul	TAP
30 Jul - 07 Aug	TAP
01 Jul - 07 Jul	Iberia
21 Jul - 28 Jul	Vueling Airlines
31 Jul - 06 Aug	TAP
26 Jul - 06 Aug	TAP
31 Jul - 07 Aug	TAP
25 Jul - 02 Aug	TAP
31 Jul - 15 Aug	TAP
31 Jul - 08 Aug	TAP
29 Jul - 05 Aug	TAP
30 Jul - 05 Aug	TAP
31 Jul - 13 Aug	TAP

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 $238

Return flights