Cheapest return SEA–ATH flights, September

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

Return flights

18 Sep - 02 Oct Scandinavian Airlines
04 Sep - 11 Sep Scandinavian Airlines
05 Sep - 12 Sep Scandinavian Airlines
27 Sep - 13 Oct Icelandair
30 Sep - 07 Oct Turkish Airlines
17 Sep - 24 Sep Turkish Airlines
07 Sep - 20 Sep Icelandair
13 Sep - 19 Sep Scandinavian Airlines
10 Sep - 17 Sep Icelandair
20 Sep - 06 Oct Turkish Airlines
21 Sep - 05 Oct Icelandair
01 Sep - 08 Sep Scandinavian Airlines
07 Sep - 14 Sep Icelandair
04 Sep - 13 Sep Icelandair
27 Sep - 04 Oct Turkish Airlines
09 Sep - 16 Sep Turkish Airlines

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

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