Cheapest return MDW–ATH flights, September

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

Return flights

29 Sep - 06 Oct Delta
02 Sep - 09 Sep Delta
19 Sep - 02 Oct Air France
30 Sep - 10 Oct Delta
08 Sep - 15 Sep Air France
21 Sep - 03 Oct Delta
21 Sep - 28 Sep Delta
14 Sep - 05 Oct Delta
16 Sep - 26 Sep Delta
05 Sep - 12 Sep Delta
02 Sep - 13 Sep Condor
10 Sep - 21 Sep Delta
30 Sep - 04 Oct Delta
06 Sep - 27 Sep Delta

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

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