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$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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
may. 6 — may. 131
mar. 5/6
mar. 5/13
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 mayo 1, 2025.

Most accurate provider

CheapOair
3 stars

Most trusted provider

CheapOair
3 stars

Round-trip from

$84
(Cheapflightsfares)

One-way from

$45
(Cheapflightsfares)

Popular in

December

Cheapest in

September

Average price

$154

Good round-trip deal

$130 or less

Good one-way deal

$83 or less
Provider with most accurate pricing for Atlanta Hartsfield-Jackson-Chicago (CHI) flight deals.
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Provider most trusted by Cheapflights users for Atlanta Hartsfield-Jackson-Chicago (CHI) flights.
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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 ($11 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 May 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 mayo 1, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/289:34 pmATL - MDW
Nonstop2h 02mFrontier
mié. 6/46:40 amMDW - ATL
Nonstop2h 03mFrontier
Deal found 4/30$84
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
lun. 6/910:43 pmATL - ORD
Nonstop2h 16mFrontier
mié. 6/114:08 pmORD - ATL
Nonstop2h 27mFrontier
Deal found 4/29$84
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 5/257:48 amATL - ORD
Nonstop2h 07mMultiple Airlines
vie. 5/306:26 pmORD - ATL
Nonstop2h 30mMultiple Airlines
Deal found 4/30$85
This Priceline deal was found by Cheapflights users on 4/29. 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.
dom. 5/117:48 amATL - ORD
Nonstop2h 07mSpirit Airlines
jue. 5/1510:00 amORD - ATL
Nonstop2h 06mSpirit Airlines
Deal found 4/29$87
This Delta deal was found by Cheapflights users on 4/30. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 5/2410:10 pmATL - ORD
Nonstop2h 07mDelta
mar. 6/311:07 amORD - ATL
Nonstop1h 53mDelta
Deal found 4/30$160
This Southwest deal was found by Cheapflights users on 4/30. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 6/48:20 amATL - MDW
Nonstop2h 00mSouthwest
mié. 6/41:45 pmMDW - ATL
1 stop6h 10mSouthwest
Deal found 4/30$170
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 10/210:23 pmATL - STL
1 stop10h 26mSpirit Airlines
dom. 10/58:44 amSTL - ATL
1 stop4h 38mSpirit Airlines
Deal found 4/30$194
This Delta deal was found by Cheapflights users on 4/29. 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.
vie. 6/1311:10 pmATL - STL
Nonstop1h 41mDelta
lun. 6/166:00 amSTL - ATL
Nonstop1h 35mDelta
Deal found 4/29$197
This American Airlines deal was found by Cheapflights users on 4/30. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 11/1511:25 amATL - ORD
Nonstop2h 10mAmerican Airlines
sáb. 11/228:05 amORD - ATL
Nonstop1h 55mAmerican Airlines
Deal found 4/30$197
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 5/287:15 amATL - STL
1 stop17h 29mFrontier
mié. 6/48:11 pmSTL - ATL
1 stop8h 59mFrontier
Deal found 4/30$200
This CheapOair deal was found by Cheapflights users on 4/30. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 6/137:54 pmATL - STL
1 stop14h 18mMultiple Airlines
lun. 6/167:13 pmSTL - ATL
1 stop11h 09mMultiple Airlines
Deal found 4/30$205
This Southwest deal was found by Cheapflights users on 4/29. 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.
vie. 8/88:25 amATL - STL
Nonstop1h 45mSouthwest
lun. 8/1111:20 amSTL - ATL
1 stop6h 15mSouthwest
Deal found 4/29$207

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 mayo 1, 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 - MDW

ATLMDW

Atlanta Hartsfield-Jackson

mié. 5/28

9:34 pm-10:36 pm

Nonstop2h 02m

Chicago Midway

mié. 6/4

6:40 am-9:43 am

Nonstop2h 03m

$84

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

lun. 6/9

7:48 am-8:55 am

Nonstop2h 07m

Chicago O'Hare Intl

sáb. 6/14

5:01 am-8:07 am

Nonstop2h 06m

$84

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

jue. 6/5

10:43 pm-11:59 pm

Nonstop2h 16m

Chicago O'Hare Intl

dom. 6/8

5:01 am-8:07 am

Nonstop2h 06m

$86

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

dom. 5/11

7:48 am-8:55 am

Nonstop2h 07m

Chicago O'Hare Intl

jue. 5/15

10:00 am-1:06 pm

Nonstop2h 06m

$87

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

sáb. 5/24

10:10 pm-11:17 pm

Nonstop2h 07m

Chicago O'Hare Intl

mar. 6/3

11:07 am-2:00 pm

Nonstop1h 53m

$160

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

mié. 6/4

8:20 am-9:20 am

Nonstop2h 00m

Chicago Midway

mié. 6/4

1:45 pm-8:55 pm

1 stop6h 10m

$170

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

7:45 am-9:12 am

1 stop26h 27m

Lambert-St Louis

dom. 6/15

2:36 pm-5:27 pm

Nonstop1h 51m

$194

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

11:10 pm-11:51 pm

Nonstop1h 41m

Lambert-St Louis

lun. 6/16

6:00 am-8:35 am

Nonstop1h 35m

$197

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

dom. 6/1

11:00 am-11:53 am

Nonstop1h 53m

Chicago Midway

dom. 6/1

6:31 pm-9:34 pm

Nonstop2h 03m

$201

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

vie. 6/13

7:54 pm-9:12 am

1 stop14h 18m

Lambert-St Louis

lun. 6/16

7:13 pm-7:22 am

1 stop11h 09m

$205

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/29

Showing 1-10 of 59 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 mayo 1, 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 mayo 1, 2025.

The most flights from ATL to USIL are scheduled on a Thursday (91 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (30 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 mayo 1, 2025.
Read reviews from past customers who have flown Alaska Airlines, Southwest and Delta from Atlanta to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Alaska Airlines
8.0
Very good
9,968 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Southwest
8.0
Very good
4,294 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
Delta
8.0
Very good
7,934 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
United Airlines
7.4
Good
8,696 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.
American Airlines
7.2
Good
10,000 reviews
Alaska Airlines
8.0
Very good
9,968 reviews

Overall

8.0

Entertainment

7.1

Crew

8.5

Boarding

8.2

Food

7.1

Comfort

7.9

Reviews

1 / 20
10.0
Excellent

James,Apr 2025

LAX - SFO

Good flight except the uncontrollable cold air from the ceiling.

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 Frontier. You may also be able to find cheap deals on Spirit Airlines and Delta, with prices starting from $46 and $80, 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 (98%), Austrian Airlines (93%) or ANA (89%) 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 $823 for a flight from Atlanta to Illinois. The cheapest flight overall is $56 while the most popular route, (Atlanta Hartsfield-Jackson - Chicago O'Hare Intl) is currently priced at $72.

  • 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 mayo 1, 2025.
AirlineCheapestAverageFlexibilityOn-time
Spirit AirlinesCheapest$41Average$114FlexibilityNo cancel feeOn-time65%
FrontierCheapest$50Average$138FlexibilityNo cancel feeOn-time62%
DeltaCheapest$105Average$332FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$119Average$263FlexibilityNo cancel feeOn-time69%
American AirlinesCheapest$139Average$441FlexibilityNo cancel feeOn-time71%
SouthwestCheapest$157Average$246FlexibilityNo cancel feeOn-time63%

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