July is the cheapest month to fly this route, with average fares around $106 round trip.
Average round-trip fares by departure month, based on current availability.
| Month | Avg Price | Lowest | Relative Cost | |
|---|---|---|---|---|
| May 2026 | $118 | $66 | Peak | |
| June 2026 | $108 | $66 | ||
| July 2026 | $106 | $66 | Best | |
| August 2026 | $108 | $66 |
Departing on Wednesday offers the lowest average fares at $68. Sunday departures are the most expensive at $132, a difference of $64.
The best time to fly is July. Set up an alert and we'll notify you when prices drop.
Get Started Free →The cheapest month to fly from Chicago to Atlanta is July, with average round-trip fares around $106. The lowest fare found in July is $66.
Wednesday departures are the cheapest, averaging $68 round trip. The most expensive day is Sunday at $132.
Based on current pricing trends, booking for July travel offers the best value. Avoid May if possible, as fares average $118 compared to $106 in the cheapest month. August is a solid middle-ground option at $108.
Flying in July instead of May can save you approximately $12 per round trip. The cheapest month averages $106 while the most expensive averages $118.
Airlines, flight times, price calendar, and more for Chicago to Atlanta
View ORD → ATL Details