HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$20+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Dec 12 — Dec 191
Fri 12/12
Fri 12/19
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.

Find flight deals from Atlanta to Illinois

Cheapest flights from Atlanta to Illinois
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 November 12, 2025.

This Priceline deal was found by Cheapflights users on 11/9. 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 11/2410:16 amATL - ORD
Nonstop2h 18mMultiple Airlines
Wed 12/103:26 pmORD - ATL
1 stop6h 38mMultiple Airlines
Deal found 11/9$72
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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.
Tue 12/28:15 amATL - MDW
Nonstop2h 02mFrontier
Tue 12/92:49 pmMDW - ATL
Nonstop2h 04mFrontier
Deal found 11/10$73
This Mytrip deal was found by Cheapflights users on 11/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/62:29 pmATL - ORD
1 stop10h 40mMultiple Airlines
Mon 12/86:11 amORD - ATL
Nonstop2h 20mMultiple Airlines
Deal found 11/11$73
This Cheapflightsfares deal was found by Cheapflights users on 11/10. 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.
Mon 12/89:10 pmATL - MDW
Nonstop2h 02mFrontier
Mon 12/156:15 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 11/10$74
This Frontier deal was found by Cheapflights users on 11/10. 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 11/1910:00 amATL - ORD
Nonstop2h 14mFrontier
Mon 11/246:00 amORD - ATL
Nonstop2h 16mFrontier
Deal found 11/10$74
This Trip.com deal was found by Cheapflights users on 11/11. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/102:29 pmATL - ORD
1 stop6h 32mMultiple Airlines
Mon 1/512:39 pmORD - ATL
Nonstop2h 16mMultiple Airlines
Deal found 11/11$76
This Kiwi.com deal was found by Cheapflights users on 11/10. 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.
Sat 11/229:40 pmATL - MDW
Nonstop2h 03mFrontier
Sat 12/136:00 amMDW - ATL
Nonstop2h 18mFrontier
Deal found 11/10$77
This Super.com deal was found by Cheapflights users on 11/9. 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.
Sat 11/2210:57 pmATL - ORD
Nonstop2h 11mFrontier
Tue 12/210:00 amORD - ATL
Nonstop2h 07mFrontier
Deal found 11/9$77
This Kiwi.com deal was found by Cheapflights users on 11/12. 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.
Sat 11/229:40 pmATL - MDW
Nonstop2h 03mFrontier
Tue 11/256:05 amMDW - ATL
Nonstop2h 17mFrontier
Deal found 11/12$78
This Frontier deal was found by Cheapflights users on 11/10. 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.
Sat 11/2210:57 pmATL - ORD
Nonstop2h 11mFrontier
Tue 12/1610:00 amORD - ATL
Nonstop2h 07mFrontier
Deal found 11/10$78
This Super.com deal was found by Cheapflights users on 11/12. 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.
Sat 11/229:40 pmATL - MDW
Nonstop2h 03mFrontier
Sun 11/236:05 amMDW - ATL
Nonstop2h 17mFrontier
Deal found 11/12$79
This Frontier deal was found by Cheapflights users on 11/10. 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 11/2610:57 pmATL - ORD
Nonstop2h 11mFrontier
Sat 12/131:24 pmORD - ATL
Nonstop2h 21mFrontier
Deal found 11/10$79

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 November 12, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$72
(Priceline)

One-way from

$20
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$170

Good round-trip deal

$113 or less

Good one-way deal

$100 or less
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Chicago (CHI) flights.
Search Deals
From Atlanta Hartsfield-Jackson to Illinois
Search Deals
One-way flight from Atlanta Hartsfield-Jackson to Illinois
Search Deals
Highest demand for flights based on searches. 4% potential increase in price ($8 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($2 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals
Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Illinois.
Search Deals
Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Illinois.
Search Deals

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 November 12, 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

Sat 1/10

3:54 pm-4:55 pm

1 stop26h 01m

Chicago O'Hare Intl

Wed 1/14

6:40 am-10:01 am

Nonstop2h 21m

$84

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 12/6

9:01 am-8:01 pm

1 stop12h 00m

Chicago O'Hare Intl

Tue 12/9

3:26 pm-11:04 pm

1 stop6h 38m

$86

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Mon 12/8

8:27 am-10:33 pm

1 stop15h 06m

Lambert-St Louis

Mon 12/15

9:54 am-9:41 pm

1 stop10h 47m

$110

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Sat 12/6

6:29 am-10:30 pm

1 stop17h 01m

Chicago Midway

Mon 12/8

3:10 pm-9:41 pm

1 stop5h 31m

$116

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 1/9

9:04 am-8:54 pm

1 stop12h 50m

Chicago O'Hare Intl

Sun 1/11

10:27 am-11:10 pm

1 stop11h 43m

$126

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Fri 1/9

6:10 am-7:05 am

Nonstop1h 55m

Chicago Midway

Sun 1/11

6:00 pm-8:50 pm

Nonstop1h 50m

$131

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Fri 1/23

11:05 am-12:01 pm

Nonstop1h 56m

Chicago Midway

Wed 2/4

10:46 am-1:44 pm

Nonstop1h 58m

$131

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Wed 1/7

3:45 pm-4:40 pm

Nonstop1h 55m

Chicago Midway

Sat 1/10

12:50 pm-8:00 pm

2 stops6h 10m

$146

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 12/9

3:48 pm-5:05 pm

Nonstop2h 17m

Chicago O'Hare Intl

Tue 12/16

2:20 pm-5:28 pm

Nonstop2h 08m

$147

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Mon 12/8

6:40 pm-7:57 pm

Nonstop2h 17m

Chicago O'Hare Intl

Wed 12/10

9:00 am-12:10 pm

Nonstop2h 10m

$154

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/10

Showing 1-10 of 60 results
1
2
3
...
6

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 November 12, 2025.

Unlike in the afternoon, when flights are generally more expensive, you can save up to 26% 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 November 12, 2025.

The most flights from ATL to USIL are scheduled on a Monday (80 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (24 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 November 12, 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.
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,235 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,009 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,015 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,049 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Frontier
5.8
Fair
3,114 reviews
Southwest
8.0
Very good
4,235 reviews

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Overall

8.0

Boarding

8.1

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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.

  • What airport do you fly from for flights from Atlanta to Illinois?

    Located just 8.2 mi from the city center, Atlanta Hartsfield-Jackson (ATL) is the airport most travelers will use when flying to Illinois from Atlanta.

  • How long is the flight from Atlanta to Illinois?

    A quick flight from Atlanta to Illinois can take about 1h 55m. Frontier provides one of the quickest options available for as low as $131. Atlanta and Illinois are separated by a distance of 591 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines to fly from Atlanta to Illinois one-way?

    $66 is the cheapest one-way deal found within the past few days, from Delta. You may also be able to find cheap deals on United Airlines and Spirit Airlines, with prices starting from $66 and $67, respectively.

  • What are the most popular routes from Atlanta to Illinois?

    While some choose either Atlanta Hartsfield-Jackson - Chicago Midway or Atlanta Hartsfield-Jackson - Lambert-St Louis, Atlanta Hartsfield-Jackson - Chicago O'Hare Intl is the most popular route from Atlanta to Illinois.

  • What are the most reliable airlines from Atlanta to Illinois?

    No one likes to see their flight delayed. When booking a flight from Atlanta to Illinois consider choosing Spirit Airlines (100%), Cathay Pacific (98%) or SkyWest Airlines (92%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Atlanta to Illinois?

    On average you can expect to pay $691 for a flight from Atlanta to Illinois. The cheapest flight overall is $44 while the most popular route, (Atlanta Hartsfield-Jackson - Chicago O'Hare Intl) is currently priced at $58.

  • Can I find deals for flights from Atlanta to Illinois that include hotel bookings?

    Yes. In addition to deals on Atlanta to Illinois flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Atlanta to Illinois?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Atlanta to Illinois.

  • Can I find deals for business class flights from Atlanta to Illinois?

    Yes. Cheapflights offers flight deals from Atlanta to Illinois by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • 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.

See more FAQs

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.
Atlanta to John F Kennedy Intl flights
Atlanta to LaGuardia flights
Atlanta to Newark flights
Atlanta to Las Vegas flights
Atlanta to Denver flights
Atlanta to Dallas/Fort Worth flights
Atlanta to Miami flights
Atlanta to Los Angeles flights
Atlanta to Fort Lauderdale flights
Atlanta to O'Hare Intl flights
Atlanta to Seattle flights
Jacksonville to John F Kennedy Intl flights
Atlanta to Sky Harbor Intl flights
Atlanta to Dulles Intl flights
Atlanta to Baltimore flights
Atlanta to San Francisco flights
Jacksonville to LaGuardia flights
Atlanta to Reagan-National flights
Atlanta to Boston flights
Atlanta to Philadelphia flights
Atlanta to Midway flights
Atlanta to Hobby flights
Atlanta to Orlando flights
Jacksonville to Newark flights
Atlanta to Tampa flights
Atlanta to Honolulu flights
Atlanta to George Bush Intcntl flights
Atlanta to Salt Lake City flights
Atlanta to New Orleans flights
Atlanta to Raleigh flights
Atlanta to Austin flights
Chattanooga to LaGuardia flights
Atlanta to San Diego flights
Atlanta to West Palm Beach flights
Atlanta to Love Field flights
Jacksonville to Denver flights
Atlanta to Detroit flights
Atlanta to Ontario flights
Jacksonville to Dulles Intl flights
Atlanta to Fort Myers flights
Atlanta to Cleveland flights
Jacksonville to Baltimore flights
Savannah to John F Kennedy Intl flights
Atlanta to San Antonio flights
Atlanta to Santa Ana flights
Asheville to LaGuardia flights
Jacksonville to Philadelphia flights
Jacksonville to Las Vegas flights
Atlanta to Minneapolis flights
Chattanooga to John F Kennedy Intl flights

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 November 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
FrontierCheapest$58Average$147FlexibilityNo cancel feeOn-time62%
Spirit AirlinesCheapest$59Average$124FlexibilityNo cancel feeOn-time65%
DeltaCheapest$107Average$339FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$139Average$270FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$147Average$406FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$275FlexibilityNo cancel feeOn-time63%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.