August is the cheapest month to fly this route, with average fares around $959 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $1398 | $1200 | Peak | |
| June 2026 | $1376 | $1177 | ||
| July 2026 | $1053 | $840 | ||
| August 2026 | $959 | $850 | Best |
Departing on Wednesday offers the lowest average fares at $1155. Friday departures are the most expensive at $1298, a difference of $143.
The best time to fly is August. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Chicago to Athens is August, with average round-trip fares around $959. The lowest fare found in August is $850.
Wednesday departures are the cheapest, averaging $1155 round trip. The most expensive day is Friday at $1298.
Based on current pricing trends, booking for August travel offers the best value. Avoid May if possible, as fares average $1398 compared to $959 in the cheapest month. June is a solid middle-ground option at $1376.
Flying in August instead of May can save you approximately $439 per round trip. The cheapest month averages $959 while the most expensive averages $1398.
Airlines, flight times, price calendar, and more for Chicago to Athens
View ORD → ATH Details