$40+ Cheap flights from Atlanta (ATL) to Illinois
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/11. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Jul 8 — Jul 151
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Atlanta to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Atlanta to Illinois
Keep the following information in mind while searching for Atlanta to Illinois flight deals. Data was last updated July 3, 2025.
Round-trip from | $90 (FlightHub) |
|---|---|
One-way from | $40 (Frontier) |
Popular in | June |
Cheapest in | September |
Average price | $186 |
Good round-trip deal | $158 or less |
Good one-way deal | $86 or less |
Find flight deals from Atlanta to Illinois
Cheapest flights from Atlanta to IllinoisExplore the most affordable flight options available from Atlanta to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.
Explore the most affordable flight options available from Atlanta to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 3, 2025.
This FlightHub deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/226:00 amATL - ORD
Nonstop2h 04mSpirit Airlines
Wed 7/234:36 pmORD - ATL
1 stop6h 10mSpirit Airlines
Deal found 7/3![Spirit Airlines logo]()
$90
This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/144:25 pmATL - MDW
1 stop6h 59mFrontier
Tue 8/199:16 amMDW - ATL
Nonstop2h 00mFrontier
Deal found 7/2![Frontier logo]()
$91
This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/215:56 pmATL - ORD
1 stop7h 05mFrontier
Sun 8/245:10 amORD - ATL
Nonstop2h 11mFrontier
Deal found 7/2![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/232:35 pmATL - ORD
Nonstop2h 29mMultiple Airlines
Sat 7/266:02 pmORD - ATL
Nonstop2h 06mMultiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$95
This Priceline deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/97:03 pmATL - STL
1 stop5h 44mFrontier
Thu 7/102:36 pmSTL - ATL
Nonstop1h 54mFrontier
Deal found 7/2![Frontier logo]()
$125
This Priceline deal was found by Cheapflights users on 6/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/187:47 pmATL - STL
1 stop5h 00mMultiple Airlines
Sun 8/242:30 pmSTL - ATL
1 stop7h 35mMultiple Airlines
Deal found 6/30![Multiple Airlines logo]()
$128
This FlightHub deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/1510:23 pmATL - STL
1 stop10h 26mSpirit Airlines
Mon 11/178:44 amSTL - ATL
1 stop7h 07mSpirit Airlines
Deal found 7/1![Spirit Airlines logo]()
$132
This Delta deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2811:55 amATL - STL
Nonstop1h 36mDelta
Mon 9/16:00 amSTL - ATL
Nonstop1h 38mDelta
Deal found 7/3![Delta logo]()
$137
This Southwest deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/127:05 amATL - STL
1 stop4h 50mSouthwest
Tue 8/1911:10 amSTL - ATL
Nonstop1h 35mSouthwest
Deal found 7/1![Southwest logo]()
$147
This American Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/287:25 pmATL - STL
1 stop5h 34mAmerican Airlines
Mon 9/15:27 amSTL - ATL
1 stop3h 52mAmerican Airlines
Deal found 7/3![American Airlines logo]()
$159
This Delta deal was found by Cheapflights users on 7/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/14:33 pmATL - EVV
Nonstop1h 28mDelta
Sun 8/31:22 pmEVV - ATL
Nonstop1h 31mDelta
Deal found 7/2![Delta logo]()
$239
This American Airlines deal was found by Cheapflights users on 7/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/188:10 pmATL - PIA
1 stop5h 04mAmerican Airlines
Mon 9/225:11 pmPIA - ATL
1 stop5h 55mAmerican Airlines
Deal found 7/1![American Airlines logo]()
$249
Cheapflights Fare Finder
Customize your flight search to find flights from Atlanta to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
Use the filters below to find and compare flights from Atlanta to Illinois that are best for you.
Fly from
Atlanta
Fly to
Illinois
Route
Depart
Return
Price
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 7/22
6:00 am-7:04 am
Nonstop2h 04m
Chicago O'Hare Intl
Wed 7/23
4:36 pm-11:46 pm
1 stop6h 10m
$90
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
Thu 8/14
4:25 pm-10:24 pm
1 stop6h 59m
Chicago Midway
Tue 8/19
9:16 am-12:16 pm
Nonstop2h 00m
$91
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 8/21
5:56 pm-12:01 am
1 stop7h 05m
Chicago O'Hare Intl
Sun 8/24
5:10 am-8:21 am
Nonstop2h 11m
$92
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 7/23
2:35 pm-4:04 pm
Nonstop2h 29m
Chicago O'Hare Intl
Sat 7/26
6:02 pm-9:08 pm
Nonstop2h 06m
$95
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Thu 7/24
12:43 pm-1:34 pm
Nonstop1h 51m
Lambert-St Louis
Thu 7/31
8:44 pm-9:02 am
1 stop11h 18m
$126
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Mon 8/18
7:47 pm-11:47 pm
1 stop5h 00m
Lambert-St Louis
Sun 8/24
2:30 pm-11:05 pm
1 stop7h 35m
$128
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Sat 11/15
10:23 pm-7:49 am
1 stop10h 26m
Lambert-St Louis
Mon 11/17
8:44 am-4:51 pm
1 stop7h 07m
$132
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Thu 8/28
11:55 am-12:31 pm
Nonstop1h 36m
Lambert-St Louis
Mon 9/1
6:00 am-8:38 am
Nonstop1h 38m
$137
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Tue 8/12
7:05 am-10:55 am
1 stop4h 50m
Lambert-St Louis
Tue 8/19
11:10 am-1:45 pm
Nonstop1h 35m
$147
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Thu 8/28
7:25 pm-11:59 pm
1 stop5h 34m
Lambert-St Louis
Mon 9/1
5:27 am-10:19 am
1 stop3h 52m
$159
Showing 1-10 of 50 results
Best time to book a flight from Atlanta to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Atlanta with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Atlanta to Illinois
What is the cheapest month to book a flight from Atlanta to Illinois?
Currently, August is the cheapest month in which you can book a flight from Atlanta to Illinois (average of $245). Flying from Atlanta to Illinois in March is currently the most expensive (average of $321). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from ATL to IL?
Find hourly flight availability from Atlanta to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated July 3, 2025.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Atlanta to Illinois as you normally would.
Weekly flight availability from Atlanta to Illinois
Explore weekly flight availability from Atlanta to Illinois. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated July 3, 2025.
The most flights from ATL to USIL are scheduled on a Thursday (84 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (15 on average).
Reviews of airlines servicing Illinois
Get insights into the airlines that provide service to Illinois. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Illinois. Reviews last updated July 3, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Atlanta to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Comfort
8.0
Food
7.0
Overall
8.0
Crew
8.6
Entertainment
7.6
Boarding
8.2
Reviews
1 / 20
8.0
ExcellentJohn,May 2025
PVD - BNA
Related info for your journey
Find useful and relevant information for your journey from Atlanta to Illinois. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes for Atlanta to Illinois
See prices for flight routes from nearby airports that may be better suited for you.
Top 6 airlines flying from Atlanta to Illinois
Discover the top 6 airlines that operate flights from Atlanta to Illinois. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$48 | Average$118 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$51 | Average$140 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$107 | Average$338 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$122 | Average$260 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$457 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$278 | FlexibilityNo cancel fee | On-time63% |