O'Hare International (ORD) to Athens International (ATH).
| Departure | Return | Price |
|---|---|---|
| 07/09/2026 | 07/16/2026 | $840 |
| 08/05/2026 | 08/13/2026 | $850 |
| 07/25/2026 | 07/30/2026 | $870 |
| 08/05/2026 | 08/14/2026 | $880 |
| 07/09/2026 | 07/17/2026 | $900 |
| 07/23/2026 | 07/30/2026 | $900 |
| 07/11/2026 | 07/16/2026 | $913 |
| 07/18/2026 | 07/23/2026 | $913 |
| 07/30/2026 | 08/06/2026 | $913 |
| 07/30/2026 | 08/07/2026 | $913 |
Based on current fares, August is the cheapest month to fly from Chicago to Athens, with average fares around $959 round trip (as low as $850).
May tends to be more expensive, averaging $1398.
See the full month-by-month and day-of-week price analysis
Best Time to Fly ORD → ATHDeparture date prices (economy, round trip). Green = cheap, red = expensive.
The cheapest month to fly from Chicago to Athens is August, with average round-trip fares around $959. Fares in August start as low as $850. The most expensive month is May, averaging $1398.
A nonstop flight from Chicago to Athens takes approximately 11h.
The cheapest flight from Chicago to Athens currently starts at $840 round trip in economy class.
The average round-trip flight price from Chicago to Athens is $1296 in economy class.
The distance is 5508 miles (8862 km). with a nonstop flight time of about 11h. The lowest fare currently available is $840 departing in July. The average round-trip fare is $1296.
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