Cheapest return flights from Chicago to Athens in September from 442€

AirHint found the following cheapest return flights from Chicago (ORD) to Athens (ATH) in September 2025 (see full year).

Return flights

09 Sep - 25 Sep Spirit Airlines
16 Sep - 24 Sep Spirit Airlines
19 Sep - 26 Sep Spirit Airlines
05 Sep - 17 Sep Spirit Airlines
23 Sep - 07 Oct Spirit Airlines
04 Sep - 16 Sep Spirit Airlines
04 Sep - 11 Sep Spirit Airlines
02 Sep - 24 Sep Spirit Airlines
22 Sep - 03 Oct Scandinavian Airlines
05 Sep - 19 Sep Scandinavian Airlines
05 Sep - 16 Sep Spirit Airlines
14 Sep - 23 Sep Spirit Airlines
11 Sep - 11 Oct Scandinavian Airlines
20 Sep - 04 Oct Scandinavian Airlines
25 Sep - 04 Oct Scandinavian Airlines
25 Sep - 06 Oct Scandinavian Airlines
24 Sep - 06 Oct Spirit Airlines
05 Sep - 03 Oct Spirit Airlines
27 Sep - 05 Oct Scandinavian Airlines
26 Sep - 04 Oct Spirit Airlines

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

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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