HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Illinois

$45+ 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 4/29. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Apr 2 — Apr 91
Wed 4/2
Wed 4/9
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 March 28, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$98
(Cheapflightsfares)

One-way from

$45
(FlightHub)

Popular in

December

Cheapest in

April

Average price

$163

Good round-trip deal

$96 or less

Good one-way deal

$80 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. 8% potential increase in price ($15 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in March 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

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 March 28, 2025.

This Priceline deal was found by Cheapflights users on 3/27. 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 9/179:19 pmATL - ORD
Nonstop2h 09mSpirit Airlines
Fri 9/196:00 amORD - ATL
Nonstop1h 59mSpirit Airlines
Deal found 3/27$95
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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.
Wed 5/148:17 amATL - ORD
Nonstop2h 21mFrontier
Tue 5/205:48 pmORD - ATL
Nonstop2h 21mFrontier
Deal found 3/27$98
This Kiwi.com deal was found by Cheapflights users on 3/26. 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 6/1110:19 pmATL - MDW
Nonstop2h 03mFrontier
Tue 6/176:00 amMDW - ATL
Nonstop2h 03mFrontier
Deal found 3/26$100
This Cheapflightsfares deal was found by Cheapflights users on 3/27. 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 5/1712:20 pmATL - ORD
Nonstop2h 21mMultiple Airlines
Sun 5/1810:00 amORD - ATL
Nonstop2h 06mMultiple Airlines
Deal found 3/27$106
This Delta deal was found by Cheapflights users on 3/27. 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.
Sat 4/269:31 pmATL - MDW
Nonstop1h 51mDelta
Sat 5/34:00 pmMDW - ATL
Nonstop1h 55mDelta
Deal found 3/27$157
This Delta deal was found by Cheapflights users on 3/27. 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 5/81:42 pmATL - ORD
Nonstop2h 05mDelta
Sun 5/115:30 amORD - ATL
Nonstop1h 59mDelta
Deal found 3/27$171
This Southwest deal was found by Cheapflights users on 3/27. 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.
Sat 5/36:35 pmATL - MDW
Nonstop2h 00mSouthwest
Mon 5/53:15 pmMDW - ATL
1 stop5h 15mSouthwest
Deal found 3/27$174
This Delta deal was found by Cheapflights users on 3/27. 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.
Tue 6/1011:00 pmATL - STL
Nonstop1h 42mDelta
Sat 6/143:43 pmSTL - ATL
Nonstop1h 41mDelta
Deal found 3/27$226
This Mytrip deal was found by Cheapflights users on 3/27. 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 4/59:21 pmATL - STL
1 stop15h 16mFrontier
Sun 4/64:57 pmSTL - ATL
1 stop14h 53mFrontier
Deal found 3/27$229
This Southwest deal was found by Cheapflights users on 3/27. 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.
Sat 4/267:00 amATL - ORD
2 stops10h 45mSouthwest
Tue 5/137:30 amORD - ATL
2 stops10h 25mSouthwest
Deal found 3/27$230
This Mytrip deal was found by Cheapflights users on 3/27. 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.
Fri 5/92:45 pmATL - STL
2 stops19h 30mSpirit Airlines
Sun 5/1110:10 amSTL - ATL
2 stops19h 45mSpirit Airlines
Deal found 3/27$243
This Sun Country Air deal was found by Cheapflights users on 3/27. 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 Sun Country Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/39:40 pmATL - STL
1 stop14h 54mSun Country Air
Sun 4/66:35 amSTL - ATL
1 stop27h 26mSun Country Air
Deal found 3/27$245

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 March 28, 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 9/17

9:19 pm-10:28 pm

Nonstop2h 09m

Chicago O'Hare Intl

Fri 9/19

6:00 am-8:59 am

Nonstop1h 59m

$95

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 4/26

7:29 am-8:48 am

Nonstop2h 19m

Chicago O'Hare Intl

Sat 5/3

10:22 am-1:33 pm

Nonstop2h 11m

$98

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Wed 6/11

10:19 pm-11:22 pm

Nonstop2h 03m

Chicago Midway

Tue 6/17

6:00 am-9:03 am

Nonstop2h 03m

$100

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 5/17

12:20 pm-1:41 pm

Nonstop2h 21m

Chicago O'Hare Intl

Sun 5/18

10:00 am-1:06 pm

Nonstop2h 06m

$106

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Sat 4/26

9:31 pm-10:22 pm

Nonstop1h 51m

Chicago Midway

Sat 5/3

4:00 pm-6:55 pm

Nonstop1h 55m

$157

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sun 4/27

7:35 am-8:41 am

Nonstop2h 06m

Chicago O'Hare Intl

Tue 5/13

5:30 am-8:29 am

Nonstop1h 59m

$164

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Sat 5/3

6:35 pm-7:35 pm

Nonstop2h 00m

Chicago Midway

Mon 5/5

3:15 pm-9:30 pm

1 stop5h 15m

$174

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Wed 8/27

2:30 pm-6:25 pm

1 stop4h 55m

Chicago O'Hare Intl

Wed 9/3

9:15 am-12:23 pm

Nonstop2h 08m

$187

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 4/26

12:10 pm-4:45 pm

1 stop5h 35m

Chicago O'Hare Intl

Sun 4/27

6:00 am-5:10 pm

1 stop10h 10m

$219

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Tue 6/10

11:00 pm-11:42 pm

Nonstop1h 42m

Lambert-St Louis

Sat 6/14

3:43 pm-6:24 pm

Nonstop1h 41m

$226

Flights are sorted by cheapest round-trip flights first.

Deals found on 3/27

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, 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 $323). 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 March 28, 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 March 28, 2025.

The most flights from ATL to USIL are scheduled on a Thursday (75 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (15 on average).

Rainfall in Illinois by month

Plan your trip to Illinois by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

Plan your trip to Illinois by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Illinois, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

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 March 28, 2025.
Read reviews from past customers who have flown Southwest, Alaska Airlines and Delta from Atlanta to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Southwest
8.1
Very good
4,273 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Alaska Airlines
8.0
Very good
9,798 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
Delta
8.0
Very good
7,896 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
United Airlines
7.4
Good
8,603 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.1
Very good
4,273 reviews

Crew

8.6

Food

7.1

Overall

8.1

Entertainment

7.6

Comfort

8.1

Boarding

8.2

Reviews

1 / 20
8.0
Excellent

Ila,Mar 2025

HOU - DAL

Our original flight was delayed. We were able to change our flight and got home at close to the same time. Looking forward to when you have assigned seating.

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.

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

    $45 is the cheapest one-way deal found within the past few days, from Spirit Airlines. You may also be able to find cheap deals on Frontier and American Airlines, with prices starting from $49 and $79, 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 Japan Airlines (95%), ANA (95%) or Alaska 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 $3,603 for a flight from Atlanta to Illinois. The cheapest flight overall is $29 while the most popular route, (Atlanta Hartsfield-Jackson - Chicago O'Hare Intl) is currently priced at $61.

  • 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, 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 $323). 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 LaGuardia flights
Atlanta to Las Vegas flights
Atlanta to John F Kennedy Intl flights
Atlanta to Newark flights
Atlanta to Seattle flights
Atlanta to Fort Lauderdale flights
Atlanta to O'Hare Intl flights
Atlanta to Miami flights
Atlanta to Hobby flights
Atlanta to Dallas/Fort Worth flights
Atlanta to Los Angeles flights
Atlanta to Dulles Intl flights
Atlanta to Midway flights
Atlanta to Denver flights
Atlanta to Boston flights
Atlanta to San Francisco flights
Atlanta to Baltimore flights
Atlanta to Orlando flights
Atlanta to Reagan-National flights
Atlanta to Honolulu flights
Atlanta to Austin flights
Atlanta to George Bush Intcntl flights
Atlanta to Sky Harbor Intl flights
Atlanta to Philadelphia flights
Jacksonville to Newark flights
Jacksonville to LaGuardia flights
Atlanta to Tampa flights
Jacksonville to John F Kennedy Intl flights
Atlanta to Ontario flights
Atlanta to Love Field flights
Atlanta to New Orleans flights
Atlanta to San Diego flights
Atlanta to Salt Lake City flights
Jacksonville to O'Hare Intl flights
Atlanta to Burbank flights
Jacksonville to Seattle flights
Atlanta to Detroit flights
Atlanta to Raleigh flights
Jacksonville to Dallas/Fort Worth flights
Jacksonville to Baltimore flights
Jacksonville to Denver flights
Jacksonville to Dulles Intl flights
Atlanta to Portland flights
Atlanta to Buffalo flights
Atlanta to West Palm Beach flights
Atlanta to Sacramento flights
Atlanta to Santa Ana flights
Jacksonville to Reagan-National flights
Jacksonville to Boston flights
Atlanta to Pittsburgh 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 March 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$38Average$106FlexibilityNo cancel feeOn-time65%
FrontierCheapest$47Average$137FlexibilityNo cancel feeOn-time62%
DeltaCheapest$104Average$345FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$117Average$263FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$137Average$423FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$159Average$276FlexibilityNo 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.