$46+ 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 2/24. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Jan 2 — Jan 91
1 adult, Economy
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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
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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
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 December 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 December 3, 2025.
This Cheapflightsfares deal was found by Cheapflights users on 12/1. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/138:18 pmATL - MDW
Nonstop2h 04mFrontier
Tue 1/66:52 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 12/1![Frontier logo]()
$69
This Cheapflightsfares deal was found by Cheapflights users on 12/3. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:10 pmATL - ORD
Nonstop2h 14mFrontier
Sun 1/115:50 amORD - ATL
Nonstop2h 14mFrontier
Deal found 12/3![Frontier logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/177:43 amATL - MDW
Nonstop2h 03mFrontier
Wed 12/248:15 amMDW - ATL
Nonstop2h 10mFrontier
Deal found 12/1![Frontier logo]()
$71
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/189:10 pmATL - ORD
Nonstop2h 14mFrontier
Thu 1/112:39 pmORD - ATL
Nonstop2h 16mFrontier
Deal found 12/2![Frontier logo]()
$72
This Frontier deal was found by Cheapflights users on 12/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/89:10 pmATL - MDW
Nonstop2h 02mFrontier
Thu 12/186:12 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 12/1![Frontier logo]()
$74
This Frontier deal was found by Cheapflights users on 12/1. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/84:09 pmATL - ORD
Nonstop2h 18mFrontier
Thu 12/186:00 amORD - ATL
Nonstop2h 20mFrontier
Deal found 12/1![Frontier logo]()
$74
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:10 pmATL - ORD
Nonstop2h 14mFrontier
Tue 1/62:26 pmORD - ATL
Nonstop2h 25mFrontier
Deal found 12/2![Frontier logo]()
$76
This Gotogate deal was found by Cheapflights users on 12/1. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:07 pmATL - MDW
Nonstop2h 01mFrontier
Sat 12/136:00 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 12/1![Frontier logo]()
$77
This Kiwi.com deal was found by Cheapflights users on 12/1. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/319:10 pmATL - ORD
Nonstop2h 14mFrontier
Thu 1/112:39 pmORD - ATL
Nonstop2h 16mFrontier
Deal found 12/1![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 12/2. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/249:10 pmATL - MDW
Nonstop2h 02mFrontier
Wed 12/316:12 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 12/2![Frontier logo]()
$78
This Kiwi.com deal was found by Cheapflights users on 12/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/115:07 pmATL - MDW
Nonstop2h 01mFrontier
Mon 12/158:42 pmMDW - ATL
Nonstop2h 06mFrontier
Deal found 12/2![Frontier logo]()
$79
This Super.com deal was found by Cheapflights users on 12/2. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/119:10 pmATL - ORD
Nonstop2h 14mFrontier
Mon 12/156:11 amORD - ATL
Nonstop2h 20mFrontier
Deal found 12/2![Frontier logo]()
$79
Find flight deals from Atlanta to Illinois
Keep the following information in mind while searching for Atlanta to Illinois flight deals. Data was last updated December 3, 2025.
Most accurate provider | CheapOair 3 stars |
|---|---|
Most trusted provider | CheapOair 3 stars |
Round-trip from | $69 (Cheapflightsfares) |
One-way from | $46 (Southwest) |
Popular in | June |
Cheapest in | February |
Average price | $177 |
Good round-trip deal | $115 or less |
Good one-way deal | $92 or less |
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 December 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
Wed 1/14
5:25 am-11:22 am
1 stop6h 57m
Chicago O'Hare Intl
Sun 1/18
6:20 am-9:41 am
Nonstop2h 21m
$80
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/22
8:33 am-1:32 pm
1 stop5h 59m
Chicago O'Hare Intl
Sat 1/24
6:03 am-9:24 am
Nonstop2h 21m
$88
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 1/27
3:26 pm-9:03 pm
1 stop6h 37m
Chicago O'Hare Intl
Wed 1/28
7:20 am-8:49 pm
1 stop12h 29m
$101
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 2/24
9:09 pm-10:23 pm
Nonstop2h 14m
Chicago O'Hare Intl
Sat 2/28
10:48 am-10:08 pm
1 stop10h 20m
$108
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 1/7
2:29 pm-8:59 pm
1 stop7h 30m
Chicago O'Hare Intl
Thu 1/8
8:43 pm-10:24 am
1 stop12h 41m
$109
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
Tue 1/20
10:26 pm-11:33 pm
1 stop26h 07m
Lambert-St Louis
Fri 1/23
8:22 pm-11:06 pm
Nonstop1h 44m
$115
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/8
9:25 pm-10:39 pm
Nonstop2h 14m
Chicago O'Hare Intl
Mon 1/12
10:37 pm-5:21 am
2 stops29h 44m
$116
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Thu 1/1
5:05 pm-6:33 pm
Nonstop2h 28m
Chicago O'Hare Intl
Sun 1/4
8:09 pm-9:35 pm
1 stop24h 26m
$121
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 1/6
11:18 am-7:02 pm
1 stop8h 44m
Chicago O'Hare Intl
Sat 1/10
10:48 am-11:25 pm
1 stop11h 37m
$126
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 12/24
9:10 pm-10:24 pm
Nonstop2h 14m
Chicago O'Hare Intl
Sat 1/3
12:39 pm-3:55 pm
Nonstop2h 16m
$127
Showing 1-10 of 60 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, January is the cheapest month in which you can book a flight from Atlanta to Illinois (average of $37). Flying from Atlanta to Illinois in June is currently the most expensive (average of $80). 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 December 3, 2025.
Unlike in the afternoon, when flights are generally more expensive, you can save up to 27% on flights from Atlanta to Illinois by exploring options for tickets in the evening.
What is the cheapest day to fly from Atlanta to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Atlanta to Illinois. Price data was last updated on December 16, 2024.
Travelers seeking maximum savings on their Atlanta to Illinois flight should consider departing on Thursday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 December 3, 2025.
The most flights from ATL to USIL are scheduled on a Wednesday (72 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (25 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 December 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.
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Crew
8.6
Entertainment
7.5
Food
7.0
Boarding
8.1
Overall
8.0
Comfort
8.0
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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
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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 December 3, 2025.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$58 | Average$123 | FlexibilityNo cancel fee | On-time65% | |
| Cheapest$58 | Average$146 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$108 | Average$337 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$139 | Average$293 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$144 | Average$401 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$157 | Average$275 | FlexibilityNo cancel fee | On-time63% |