Cheapest return PDX–ATH flights, September

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

Return flights

12 Sep - 16 Sep Condor
17 Sep - 24 Sep Alaska Airlines
29 Sep - 06 Oct KLM
22 Sep - 29 Sep KLM
13 Sep - 20 Sep KLM
23 Sep - 30 Sep KLM
24 Sep - 01 Oct Icelandair
06 Sep - 15 Sep Icelandair
25 Sep - 02 Oct KLM
30 Sep - 07 Oct Icelandair
16 Sep - 23 Sep Alaska Airlines
15 Sep - 22 Sep KLM
21 Sep - 28 Sep Air France
14 Sep - 21 Sep Alaska Airlines

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

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