Cheap flights from Illinois to Atlanta from $23

The month of September is, on average, the cheapest month to fly to Atlanta from Illinois, with most prices found around $191. If you aren’t able to travel to Atlanta during the month of September, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $194.

Our data shows that Friday is the least expensive day to fly to Atlanta. Tickets to fly out on this day can be as low as $270. Be sure to avoid booking your departure on a Monday as prices are generally higher than usual. According to our data, the average ticket price to Atlanta on Monday is $418.

The cheapest time of day to fly to Atlanta is at noon when flights can be purchased for as low as $273. Flights to Atlanta are more costly in the afternoon, with an average ticket price of $321. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

Fly from Chicago O'Hare Intl to Atlanta Hartsfield-Jackson for the best Illinois - Atlanta Hartsfield-Jackson flight prices

You are more likely to see cheaper flights to Atlanta from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Atlanta for around $234 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Atlanta from Illinois for as low as $165 on momondo.

There are 4 cabin classes available to choose from on Illinois to Atlanta flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Delta, Southwest, and United Airlines are the most popular carriers operating from Illinois to Atlanta Hartsfield-Jackson

Frontier, United Airlines and Delta are the top three most popular airlines that fly to Atlanta from Illinois according to our data. Frontier is the first choice among our users, with 48% of people opting to fly with this airline when traveling to Atlanta. Keep in mind that there are 6 different airlines that fly to Atlanta on a routine basis, so you have a few additional options to choose from.

As of August 2026, 197 flights take off from Illinois and land in Atlanta each day. The most common flight departure time for this route is 6:00AM, with 43% of daily flights taking off in the afternoon.

As of August 2026, 1,382 flights take off from Illinois and land in Atlanta each week. The most common flight departure day for this route is Thu, with 17% of weekly flights taking off on this day.