Cheapest return OPO–ATH flights, September

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

Return flights

22 Sep - 29 Sep Vueling Airlines
23 Sep - 29 Sep Vueling Airlines
25 Sep - 06 Oct Ryanair
22 Sep - 01 Oct Ryanair
21 Sep - 29 Sep Ryanair
27 Sep - 08 Oct Ryanair
17 Sep - 24 Sep Vueling Airlines
29 Sep - 20 Oct Vueling Airlines
27 Sep - 10 Oct Ryanair
22 Sep - 28 Sep easyJet
10 Sep - 22 Sep Ryanair
28 Sep - 03 Oct Ryanair
08 Sep - 18 Sep Ryanair
09 Sep - 17 Sep Vueling Airlines
13 Sep - 17 Sep Ryanair
24 Sep - 03 Oct Air Serbia
02 Sep - 07 Sep easyJet
29 Sep - 03 Oct Ryanair
02 Sep - 01 Oct easyJet
27 Sep - 05 Oct Ryanair

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

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