AirHint found the following cheapest one-way flights from Chicago (ORD) to Athens (ATH) in May 2026 (see full year).
One-Way flights
| 18 May | Lufthansa | ||
| 27 May | Icelandair | ||
| 29 May | Spirit Airlines | ||
| 31 May | Icelandair | ||
| 06 May | Air Serbia | ||
| 16 May | Air Serbia | ||
| 20 May | Air Serbia | ||
| 25 May | Air Serbia | ||
| 17 May | Lufthansa | ||
| 03 May | Turkish Airlines |
Also check the deals for return flights from Chicago to Athens in May.
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