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$25+ 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 10/24. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Aug 26 — Sep 21
Tue 8/26
Tue 9/2
1 adult, Economy
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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 August 21, 2025.

Round-trip from

$80
(Frontier)

One-way from

$25
(Cheapflightsfares)

Popular in

June

Cheapest in

February

Average price

$177

Good round-trip deal

$135 or less

Good one-way deal

$85 or less
From Atlanta Hartsfield-Jackson to Illinois
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One-way flight from Atlanta Hartsfield-Jackson to Illinois
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Highest demand for flights based on searches. 6% potential increase in price ($10 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($3 potential savings vs. average RT price).
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Average for round-trip flights in August 2025
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Price to beat on a round-trip flight from Atlanta Hartsfield-Jackson to Illinois.
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Price to beat on a one-way flight from Atlanta Hartsfield-Jackson to Illinois.
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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 August 21, 2025.

This Frontier deal was found by Cheapflights users on 8/20. 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 9/138:30 pmATL - MDW
1 stop13h 53mFrontier
Mon 9/156:20 amMDW - ATL
Nonstop2h 07mFrontier
Deal found 8/20$80
This Frontier deal was found by Cheapflights users on 8/21. 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.
Fri 10/1710:27 pmATL - ORD
Nonstop2h 12mFrontier
Sun 10/195:05 amORD - ATL
Nonstop2h 08mFrontier
Deal found 8/21$80
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 9/31:10 pmATL - ORD
Nonstop2h 24mFrontier
Wed 9/36:55 pmORD - ATL
Nonstop2h 35mFrontier
Deal found 8/19$81
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 9/410:25 pmATL - MDW
Nonstop1h 55mFrontier
Tue 9/92:32 pmMDW - ATL
Nonstop2h 01mFrontier
Deal found 8/20$82
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 9/31:10 pmATL - ORD
Nonstop2h 24mFrontier
Sat 9/612:22 pmORD - ATL
Nonstop2h 15mFrontier
Deal found 8/18$82
This Cheapflightsfares deal was found by Cheapflights users on 8/20. 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 9/173:00 pmATL - MDW
Nonstop1h 58mFrontier
Wed 9/249:00 amMDW - ATL
Nonstop1h 58mFrontier
Deal found 8/20$83
This Frontier deal was found by Cheapflights users on 8/19. 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 9/610:11 amATL - ORD
Nonstop2h 16mFrontier
Fri 9/126:21 pmORD - ATL
Nonstop2h 28mFrontier
Deal found 8/19$83
This Cheapflightsfares deal was found by Cheapflights users on 8/19. 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 9/163:00 pmATL - MDW
Nonstop1h 58mFrontier
Sat 9/206:15 amMDW - ATL
Nonstop2h 07mFrontier
Deal found 8/19$84
This Cheapflightsfares deal was found by Cheapflights users on 8/21. 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.
Fri 9/510:58 pmATL - ORD
Nonstop2h 12mFrontier
Sun 9/75:10 amORD - ATL
Nonstop2h 09mFrontier
Deal found 8/21$84
This Mytrip deal was found by Cheapflights users on 8/20. 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.
Sun 8/319:05 amATL - MDW
Nonstop2h 03mFrontier
Wed 9/33:03 pmMDW - ATL
Nonstop2h 10mFrontier
Deal found 8/20$85
This Frontier deal was found by Cheapflights users on 8/19. 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 9/1310:11 amATL - ORD
Nonstop2h 16mFrontier
Tue 11/412:37 pmORD - ATL
Nonstop2h 04mFrontier
Deal found 8/19$85
This FlightHub deal was found by Cheapflights users on 8/21. 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 9/208:30 pmATL - MDW
1 stop13h 53mFrontier
Mon 9/226:20 amMDW - ATL
Nonstop2h 07mFrontier
Deal found 8/21$86

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 August 21, 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

Fri 10/17

4:42 pm-5:57 pm

Nonstop2h 15m

Chicago O'Hare Intl

Sat 10/18

5:45 pm-9:07 pm

Nonstop2h 22m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Wed 10/8

3:21 pm-4:40 pm

Nonstop2h 19m

Chicago O'Hare Intl

Sat 10/11

5:45 pm-9:07 pm

Nonstop2h 22m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 10/17

10:27 pm-11:39 pm

Nonstop2h 12m

Chicago O'Hare Intl

Mon 10/20

12:28 pm-3:32 pm

Nonstop2h 04m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 10/7

3:21 pm-4:40 pm

Nonstop2h 19m

Chicago O'Hare Intl

Sat 10/11

5:45 pm-9:07 pm

Nonstop2h 22m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 10/17

10:27 pm-11:39 pm

Nonstop2h 12m

Chicago O'Hare Intl

Sun 10/19

5:05 am-8:13 am

Nonstop2h 08m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Thu 10/2

10:27 pm-11:39 pm

Nonstop2h 12m

Chicago O'Hare Intl

Fri 10/3

5:50 pm-9:18 pm

Nonstop2h 28m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 11/7

10:59 pm-12:11 am

Nonstop2h 12m

Chicago O'Hare Intl

Mon 11/10

11:24 am-2:27 pm

Nonstop2h 03m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 10/4

3:26 pm-4:45 pm

Nonstop2h 19m

Chicago O'Hare Intl

Sat 10/11

5:45 pm-9:07 pm

Nonstop2h 22m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Sat 8/30

10:09 pm-11:33 pm

Nonstop2h 24m

Chicago O'Hare Intl

Sat 9/6

12:22 pm-3:37 pm

Nonstop2h 15m

$80

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 11/14

3:37 pm-4:56 pm

Nonstop2h 19m

Chicago O'Hare Intl

Mon 11/17

6:30 pm-9:54 pm

Nonstop2h 24m

$80

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/21

Showing 1-10 of 60 results
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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 August 21, 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 August 21, 2025.

The most flights from ATL to USIL are scheduled on a Thursday (91 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (37 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 August 21, 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
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
4,245 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
8.0
Very good
7,981 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
8,930 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
10,000 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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
3,207 reviews
Southwest
8.0
Very good
4,245 reviews

Boarding

8.1

Crew

8.6

Overall

8.0

Food

7.0

Comfort

8.0

Entertainment

7.5

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 2h 15m. Frontier provides one of the quickest options available for as low as $80. Atlanta and Illinois are separated by a distance of 606 mi. All flights are typically nonstop.

  • 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 PSA Airlines (100%), Envoy Air (100%) or Spirit Airlines (87%) 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 $991 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 $71.

  • 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 $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.

See more FAQs

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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.
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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 August 21, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$49Average$122FlexibilityNo cancel feeOn-time65%
FrontierCheapest$57Average$142FlexibilityNo cancel feeOn-time62%
DeltaCheapest$106Average$334FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$137Average$266FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$147Average$458FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$274FlexibilityNo cancel feeOn-time63%

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