Cheapest return flights from Chicago to Athens in September from $573

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

Return flights

02 Sep - 16 Sep Scandinavian Airlines
05 Sep - 17 Sep Scandinavian Airlines
05 Sep - 19 Sep Scandinavian Airlines
21 Sep - 28 Sep Scandinavian Airlines
08 Sep - 15 Sep Turkish Airlines
16 Sep - 30 Sep Turkish Airlines
13 Sep - 30 Sep Turkish Airlines
07 Sep - 23 Sep Turkish Airlines
07 Sep - 18 Sep Turkish Airlines
09 Sep - 16 Sep Turkish Airlines
28 Sep - 05 Oct Turkish Airlines
19 Sep - 02 Oct Turkish Airlines
24 Sep - 04 Oct TAP
29 Sep - 10 Oct Turkish Airlines
20 Sep - 11 Oct Lufthansa
30 Sep - 12 Oct Lufthansa
26 Sep - 09 Oct Icelandair
24 Sep - 01 Oct Icelandair
30 Sep - 05 Oct Air Serbia
19 Sep - 02 Oct Finnair direct

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

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