$33 Find Cheap Flights from Atlanta to Illinois

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Atlanta to Illinois departing on 4/15. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Illinois

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Illinois.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Atlanta to Illinois.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Atlanta to Illinois

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours
Chicago
Chicagononstop$80
Moline
Moline1 stop$265
Peoria
Peoria1 stop$279
Bloomington
Bloomington1 stop$251
Champaign
Champaign1 stop$303
Springfield
Springfield1 stop$284
St. Louis
St. Louisnonstop$76
Chicago
Chicagononstop$80
Moline
Moline1 stop$265
Peoria
Peoria1 stop$279
Bloomington
Bloomington1 stop$251
Champaign
Champaign1 stop$303
Springfield
Springfield1 stop$284
St. Louis
St. Louisnonstop$76

Book Cheap Atlanta to Illinois Plane Tickets

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Atlanta to Illinois that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Atlanta to Illinois

Sat, Apr 18 - Sat, Apr 18
Frontier Logo
6:00 am - 6:50 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
8:23 pm - 11:09 pm
STL
-
ATL
1h 46mnonstop
$76Frontier
Wed, Jun 3 - Wed, Jun 10
Frontier Logo
8:05 am - 8:55 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
5:33 pm - 8:25 pm
STL
-
ATL
1h 52mnonstop
$77Frontier
Fri, Apr 17 - Sun, Apr 19
Spirit Airlines Logo
9:12 am - 10:23 am
ATL
-
ORD
2h 11mnonstop
Spirit Airlines Logo
11:28 am - 2:27 pm
ORD
-
ATL
1h 59mnonstop
$85Spirit Airlines
Wed, Apr 15 - Wed, Apr 22
Spirit Airlines Logo
10:01 pm - 9:36 am
ATL
-
ORD
12h 35m
1 stop
Spirit Airlines Logo
11:28 am - 2:27 pm
ORD
-
ATL
1h 59mnonstop
$89Spirit Airlines
Sat, Apr 18 - Wed, Apr 29
American Airlines Logo
4:36 pm - 11:13 pm
ATL
-
PIA
7h 37m
1 stop
American Airlines Logo
6:23 pm - 11:59 pm
PIA
-
ATL
4h 36m
1 stop
$291American Airlines
Sat, Apr 18 - Wed, Apr 29
American Airlines Logo
6:38 am - 12:52 pm
ATL
-
PIA
7h 14m
2 stops
American Airlines Logo
1:22 pm - 7:27 pm
PIA
-
ATL
5h 05m
1 stop
$296American Airlines
Thu, May 28 - Sun, May 31
United Airlines Logo
8:00 am - 12:50 pm
ATL
-
CMI
5h 50m
1 stop
United Airlines Logo
6:30 am - 12:22 pm
CMI
-
ATL
4h 52m
1 stop
$303United Airlines
Thu, Apr 30 - Sun, May 3
Delta Logo
10:13 pm - 10:42 pm
ATL
-
EVV
1h 29mnonstop
Delta Logo
5:58 pm - 8:34 pm
EVV
-
ATL
1h 36mnonstop
$339Delta
Mon, Apr 20 - Mon, May 11
Delta Logo
8:55 am - 9:24 am
ATL
-
EVV
1h 29mnonstop
Delta Logo
10:10 am - 12:39 pm
EVV
-
ATL
1h 29mnonstop
$359Delta
Sat, Aug 29 - Tue, Sep 1
United Airlines Logo
1:18 pm - 5:28 pm
ATL
-
CMI
5h 10m
1 stop
United Airlines Logo
5:45 am - 12:19 pm
CMI
-
ATL
5h 34m
1 stop
$368United Airlines
Booking Insights

KAYAK's insights & trends for Atlanta to Illinois flights

Get data-powered insights and trends into flights from Atlanta to Illinois to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Atlanta to Illinois?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Atlanta to Illinois departing in June.

What is the cheapest Atlanta to Illinois flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest ticket to Illinois from Atlanta found in the last 72 hours was to Chicago, at $72 round-trip. The most popular route is from Atlanta (ATL) to Chicago O'Hare Intl Airport (ORD), and the cheapest round-trip airline ticket found on this route in the last 72 hours was $82.

What is the cheapest time of day to fly to Illinois?

The average price for all round-trip flights from Atlanta to Illinois depending on the time of departure, clicked by users on KAYAK in the last 2 weeks.

The cheapest time of day to fly to Illinois is generally at night, when round-trip flights cost $177 on average. Morning departures are around 14% cheaper than evening flights, on average. The most expensive time of day to fly to Illinois is generally in the evening, which is peak travel time and where the average cost of a ticket is $289.

Can I save money by flying with a layover from Atlanta to Illinois?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $389, prices are generally cheapest when you fly direct.

What is the cheapest month to fly from Atlanta to Illinois?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Atlanta to Illinois, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Atlanta to Illinois is February, when tickets cost $131 (return) on average. On the other hand, the most expensive months are March and June, when the average cost of round-trip tickets is $196 and $194 respectively.

What’s the cheapest day of the week to fly from Atlanta to Illinois?

The average price of all round-trip flights from Atlanta to Illinois clicked on KAYAK for each day over the last 12 months.

When flying from Atlanta to Illinois, you should consider leaving on a Thursday and avoid Mondays if you are looking for the best rates. For your return to Atlanta, you’ll find the best rates on Fridays and the most expensive ones on Mondays.

How far in advance should I book a flight from Atlanta to Illinois?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Atlanta to Illinois, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Atlanta to Illinois, you should book around 2 weeks before departure, which saves you about 39% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$34
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 7% increase in price.
Flight from Atlanta to St. Louis

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Atlanta to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Atlanta to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Atlanta to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight from Atlanta to Illinois is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Atlanta to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly from Atlanta to Illinois with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Atlanta to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying from Atlanta to Illinois up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Atlanta to the following destinations at these prices or less: Chicago $139 one-way - $179 round-trip

Reviews of the top 5 airlines serving from Atlanta to Illinois

 
See real verified KAYAK customer reviews for airlines flying from Atlanta to Illinois. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Atlanta to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
SouthwestOverall score based on 4332 reviews
8.0Comfort
7.5Entertainment
8.6Crew
7.0Food
8.1Boarding
Airline reviews

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

10.0 ExcellentMelissa, Mar 2026
MSY - LGA
Read more Southwest reviews

Had a great flight. Delayed takeoff, but comfortable. Snacks were good.

Love them will get a Southwest card to track my points and keep flying with them. My family and I were pleased with the services.

I have roller bag with food and medication told me I couldn't bring on my 2nd flight today. 15 years flying with SW never an issue with that bag.

Southwest continues to do less for more money. Flight attendants used to be fun and friendly. But now it’s like they don’t even see you. Such a shame.

Great flight. Good snacks and drinks. Grateful it was free. The flight from Nashville to louisville, i think her name was Tracy (not sure that's right) super awesome, nice and cheerful. She really enjoyed being at work today! She was the person who scanned the boarding pass on flight wn941. She should be recommended for a raise !

I liked it better when you were truer to your roots Am paying more for less fun

Southwest was greaat! The most expensive but the least upsetting for those we were flying to see.

I flew twice this week on Southwest, was delayed over 2 hours both ways. From Pittsburgh to Chicago it was due to weather but the gate agents, pilot etc were great at updating everyone. Today from Midway to Pittsburgh the plane had come from an international location, kept getting delayed, no information was given until we were delayed for the third time. It was ridiculous, whoever scheduled that plane to fly to Pittsburgh after didn’t consider a lot of things.

Boarding was easy. The seats are small and fairly uncomfortable

I was supposed to be on a later flight. When I showed up at the gate, the woman working there was extremely helpful getting moved up to this earlier flight.

Mechanical Delay of over an hour with multiple gate changes. Entertainment system down for rejuvenation.

First class is comfortable. Enjoyed a movie and was able to relax compared to coach.

Same experience as the flight from Norfolk to Atlanta where people are boarded in zones that don't make sense. People behind you on the plane will get on before you and they take the luggage space on your row.

I was happy that I was able to get a last minute flight but unfortunately my seat was a middle seat. Even with Delta Comfort I wasn't comfortable

two hour delay and the Delta representative on the PA system was unable to understand

We waited an hour on the runway to get a gate in Orlando

The staff on board and gate was nice - a welcome change from the usual. We also arrived early, which was a great benefit, given that it takes 30 minutes plus to get bags at SRQ.

Never got on it. Was re-routed through Detroit and am still in airports 12 hours later waiting for my connecting plane to arrive.

The landing was the worst I’ve experienced with a flight.

Smallest leg room I've ever had on a plane.

3 hour delay…. Nearly 2 hours sitting on tarmac. Do better, United. Or at least have the sense to not say “we hope you enjoyed your flight with us” upon disembarking.

Flights were on time. Free Wifi on plane. Everything was well organized.

Economy plus was so cramped I could not use my laptop. It was beyond bad.

Wonderful. Quick boarding. Early departure and we arrived 30 minutes early at our destination. Unfortunately, when you arrive early, there is still a departing aircraft at our gate. We had to park for 30 minutes until the gate was clear. So our early arrival was not really early at the gate. Otherwise it was a quick and smooth flight. Appreciated the efficiency.

Everything was great except for the boarding process. Everyone is lining up all at the same time and it’s hard to tell between the groups as they are way too large.

Crew was great (professional, attentive, prompt). Snacks for 4 hrs flight is deplorable.

United Airlines is my preferred airlines and I am thankful for Gary who also help support me on the phone to switch my flight literally last min.

Seated dude next to me even though lots of empty rows. But main thing was we sat on the tarmac after landing for 30 minutes because of, in the words of the dude who sat next to me, “operational incompetence”. We got changing directions about where to pick up gate checked bags. Pilot and flight attendant were awesome though.

It was a pretty standard flight... until the almost hour and a half spent on the taxi way. I get that the weather has been poor but the delay had nothing to do with the weather and more to do with a plane with several issues tying up the gate. I get that that happens from time to time but this has been EVERY flight I've been on for the past 5 years and I fly 3 to 5 times a year. This isn't just United... it's American, it's Delta. It's an issue with the entire industry. I work for UPS and packages on a cargo plane get better service than people do these days. Anymore I HATE flying.

Perfect flight. Smooth flight. Arrived 20 minutes early at destination. Excellent service.

The staff are very, very professional. It's what flying should feel like.

Flight was delayed half hour before boarding, but when I checked flight aware the plane that would Pick us up had a delay of more than an hour. AA should let us know in advance to avoid waiting several hours in the airport

Delays with no explanation. It could have been handled better.

Jill was the flight attendant in first class she was fabulous!! Best flight attendant I have had in years.!! And I fly every other week. Other can learn from her!!

As a first class customer, there was no power the entire flight which limited my ability to work. I find this unacceptable. The first 11 rows on the left side of the plan were out. I was only offered the option to charge my phone which was not the issue because my laptop was out of power. I asked if there was anything that can be done for me, and the answer was, "no". I was not offered any type of compensation for this AA problem which caused me unnecessary stress due to inability to address business issues on an already challenging travel day. Flight attendants tried to reset the power once but that was the extent of their support. Very disappointing for the lack of expected services on a flight. Please contact me with customer focused response to this complaint.

Our flight was delayed 3 times and this is why I am giving such low reviews. Everything else was okay but being in the airport at 4:30pm for my initial flight at 7pm to not leave until after 9:30pm is insane,

There was no inflight service. Once we landed we were delayed to find a gate for an hour and a half which was 1/2 the total time in the air.

The chicken wrap was tiny ($13 for what looked like a 1/3 of a normal wrap?) and disgusting.

It was good experience this time. The flight was on time.

There was a delay with the plan which cause the flight to leave later and once arrived in Chicago there was another delay and some passengers missed their connecting flights

It was an early flight and most people napped/slept and the crew let us which was nice.

The crew acted like they had never done this and kept barking passive aggressive orders at people. + the security line + the delay + sitting on the tarmac for 2 hours + none of the apps or signage updating with correct times

More inflight connection. And leg space is horrible. And the paying for baggage I'd ridiculous!!!

My flight was originally from SAT to MCO connecting from MCO to ORD. We got diverted to ATL and than Frontier staff there was sooo un helpful first they said they couldn’t give us any accommodation since our flight first got delayed that cancelled and now it’s 221am and I am still in ATL since they said they need to create a new flight my final destination is ORD and I have been delayed twice and cancelled. With no real help the frontier app didn’t work no email updates over all such a horrible experience

There's no seats that lean back with little leg space i wad uncomfortable the entire flight. Your charges for extra baggage is despicable and costly!!

Remind customers of the need to have passport or new ID for boarding.

Flight was canceled. Most upsetting was message from Kayak, stating that the flight was canceled and click with Kayak for details regarding rebook, refund details. THERE'S NO INFORMATION PROVIDED BY KAYAK EXCEPT THAT FLIGHT IS CANCELED. AND NOW THIS SURVEY TO FIND OUT HOW WAS THE FLIGHT !!!!!!!

The flight never took off and we spent 7 hours at the airport

Gate not determined until I got to the airport - hard to plan the trip to the airport.

Our flight was canceled. I will never use Kayak nor Frontier for travel again. The entire experience was a headache.

Everything you need to know for your flight from Atlanta to Illinois

Information on your arrival and departure airports