Cheapest one-way flights from Chicago to Athens in September from $315

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

One-Way flights

30 Sep Air Serbia
22 Sep LOT
30 Sep Finnair direct
22 Sep American Airlines direct

Also check the deals for return flights from Chicago to Athens in September.

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