AirHint found the following cheapest one-way flights from Chicago (ORD) to Athens (ATH) in May 2026 (see full year).
One-Way flights
| 25 May | WestJet | ||
| 16 May | United | ||
| 16 May | United | direct | |
| 25 May | United | direct | |
| 23 May | United | direct |
Also check the deals for return flights from Chicago to Athens in May.
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