Cheapest return flights from Athens to Porto in September from $204

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

Return flights

23 Sep - 27 Sep Air Serbia
26 Sep - 30 Sep SKY express
04 Sep - 08 Sep KLM
12 Sep - 17 Sep easyJet
03 Sep - 08 Sep SWISS
01 Sep - 15 Sep Volotea
10 Sep - 15 Sep Volotea
23 Sep - 08 Oct Vueling Airlines
15 Sep - 16 Sep Volotea
01 Sep - 16 Sep Volotea
18 Sep - 22 Sep SKY express
29 Sep - 08 Oct Volotea
17 Sep - 08 Oct Volotea
24 Sep - 08 Oct Volotea
29 Sep - 15 Oct Volotea
24 Sep - 15 Oct Volotea
29 Sep - 08 Oct Volotea direct
24 Sep - 08 Oct Volotea direct
23 Sep - 06 Oct Vueling Airlines
23 Sep - 05 Oct Vueling Airlines

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

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