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Cheap flights from Atlanta to Illinois from $39

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Atlanta to Illinois departing on 12/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Atlanta to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
7:05 pm - 12:27 amATL-ORD
6h 22m1 stop
Multiple Airlines Logo
10:00 am - 1:07 pmORD-ATL
2h 07mnonstop
$75Multiple Airlines
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Tue, Nov 18 - Tue, Dec 2
Frontier Logo
9:10 pm - 10:24 pmATL-ORD
2h 14mnonstop
Frontier Logo
6:11 am - 9:31 amORD-ATL
2h 20mnonstop
$76Frontier
Find Deal
Fri, Dec 12 - Mon, Dec 15
Frontier Logo
4:38 pm - 5:38 pmATL-MDW
2h 00mnonstop
Frontier Logo
6:14 am - 9:32 amMDW-ATL
2h 18mnonstop
$77Frontier
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Thu, Dec 25 - Tue, Dec 30
Delta Logo
9:03 am - 10:01 amATL-MDW
1h 58mnonstop
Delta Logo
6:00 am - 9:06 amMDW-ATL
2h 06mnonstop
$137Delta
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Wed, Feb 11 - Wed, Feb 18
Southwest Logo
6:45 pm - 7:30 pmATL-STL
1h 45mnonstop
Southwest Logo
3:15 pm - 5:45 pmSTL-ATL
1h 30mnonstop
$187Southwest
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Thu, Dec 4 - Sun, Dec 7
Delta Logo
7:36 am - 8:24 amATL-STL
1h 48mnonstop
Delta Logo
9:30 am - 12:09 pmSTL-ATL
1h 39mnonstop
$197Delta
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Wed, Dec 3 - Wed, Dec 10
United Airlines Logo
3:48 pm - 9:31 pmATL-PIA
6h 43m1 stop
United Airlines Logo
1:15 pm - 9:18 pmPIA-ATL
7h 03m1 stop
$249United Airlines
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Sat, Dec 6 - Sun, Dec 7
American Airlines Logo
3:20 pm - 11:53 pmATL-PIA
9h 33m2 stops
American Airlines Logo
10:47 am - 7:23 pmPIA-ATL
7h 36m1 stop
$254American Airlines
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Sat, Dec 6 - Sun, Dec 7
American Airlines Logo
10:51 am - 7:16 pmATL-PIA
9h 25m2 stops
American Airlines Logo
6:05 am - 3:22 pmPIA-ATL
8h 17m2 stops
$259American Airlines
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Wed, Dec 3 - Sat, Dec 6
United Airlines Logo
10:10 am - 2:33 pmATL-PIA
5h 23m1 stop
United Airlines Logo
6:45 am - 7:51 pmPIA-ATL
12h 06m2 stops
$467United Airlines
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Wed, Nov 26 - Sun, Dec 7

Frontier flights from Atlanta to Illinois

Our best Frontier deals on Atlanta to Illinois flight tickets
Frontier
Dec 12
ATL9:10 pmAtlanta Hartsfield-Jackson
2h 14m
ORD10:24 pmChicago O'Hare Intl
Dec 15
ORD6:11 amChicago O'Hare Intl
2h 20m
ATL9:31 amAtlanta Hartsfield-Jackson
$76
Find similar
Frontier
Dec 25
ATL4:38 pmAtlanta Hartsfield-Jackson
2h 00m
MDW5:38 pmChicago Midway
Dec 30
MDW6:14 amChicago Midway
2h 18m
ATL9:32 amAtlanta Hartsfield-Jackson
$77
Find similar
Frontier
Nov 18
ATL10:00 amAtlanta Hartsfield-Jackson
2h 14m
ORD11:14 amChicago O'Hare Intl
Dec 3
ORD4:01 pmChicago O'Hare Intl
2h 26m
ATL7:27 pmAtlanta Hartsfield-Jackson
$79
Find similar

Spirit Airlines flights from Atlanta to Illinois

Our best Spirit Airlines deals on Atlanta to Illinois flight tickets
Spirit Airlines
Nov 15
ATL7:05 pmAtlanta Hartsfield-Jackson
6h 22m
1 stop
ORD12:27 amChicago O'Hare Intl
Nov 19
ORD2:31 pmChicago O'Hare Intl
5h 52m
1 stop
ATL9:23 pmAtlanta Hartsfield-Jackson
$93
Find similar
Spirit Airlines
Nov 17
ATL5:25 pmAtlanta Hartsfield-Jackson
8h 02m
1 stop
ORD12:27 amChicago O'Hare Intl
Nov 20
ORD10:12 amChicago O'Hare Intl
9h 23m
1 stop
ATL8:35 pmAtlanta Hartsfield-Jackson
$101
Find similar
Spirit Airlines
Dec 10
ATL9:01 amAtlanta Hartsfield-Jackson
12h 00m
1 stop
ORD8:01 pmChicago O'Hare Intl
Dec 13
ORD7:20 amChicago O'Hare Intl
7h 38m
1 stop
ATL3:58 pmAtlanta Hartsfield-Jackson
$117
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated November 3, 2025.
Use the filters below to find and compare flights from Atlanta to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Tue 11/18

7:05 pm-12:27 am

1 stop6h 22m

Chicago O'Hare Intl

Tue 12/2

10:00 am-1:07 pm

Nonstop2h 07m

$75

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 12/12

9:10 pm-10:24 pm

Nonstop2h 14m

Chicago O'Hare Intl

Mon 12/15

6:11 am-9:31 am

Nonstop2h 20m

$76

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Thu 12/25

4:38 pm-5:38 pm

Nonstop2h 00m

Chicago Midway

Tue 12/30

6:14 am-9:32 am

Nonstop2h 18m

$77

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

Wed 2/11

9:03 am-10:01 am

Nonstop1h 58m

Chicago Midway

Wed 2/18

6:00 am-9:06 am

Nonstop2h 06m

$137

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Thu 12/4

6:45 pm-7:30 pm

Nonstop1h 45m

Lambert-St Louis

Sun 12/7

3:15 pm-5:45 pm

Nonstop1h 30m

$187

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Wed 12/3

7:36 am-8:24 am

Nonstop1h 48m

Lambert-St Louis

Wed 12/10

9:30 am-12:09 pm

Nonstop1h 39m

$197

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Sat 12/6

3:48 pm-9:31 pm

1 stop6h 43m

Greater Peoria

Sun 12/7

1:15 pm-9:18 pm

1 stop7h 03m

$249

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Sat 12/6

3:20 pm-11:53 pm

2 stops9h 33m

Greater Peoria

Sun 12/7

10:47 am-7:23 pm

1 stop7h 36m

$254

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Wed 12/3

10:51 am-7:16 pm

2 stops9h 25m

Greater Peoria

Sat 12/6

6:05 am-3:22 pm

2 stops8h 17m

$259

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Wed 11/26

10:10 am-2:33 pm

1 stop5h 23m

Greater Peoria

Sun 12/7

6:45 am-7:51 pm

2 stops12h 06m

$467

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Atlanta to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Atlanta is in February. Flight prices, which tend to average around $132, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of February, then flying in January is also cheap. Prices for this month can be found on momondo for an average of $138.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Atlanta to Illinois is on a Thursday when prices can be found for as low as $207. Flights from Atlanta to Illinois on a Sunday will generally be more expensive and average around $324. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the evening. Flights from Atlanta to Illinois during this time can be as low as $174. Flights at noon are often more expensive with an average ticket price of $286.

What is the cheapest Atlanta Hartsfield-Jackson to Illinois flight route?

Fly from Atlanta Hartsfield-Jackson to Chicago Midway for the best Atlanta Hartsfield-Jackson - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Atlanta when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $178 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Atlanta for as low as $146 on momondo.

What cabin class options are available on Atlanta Hartsfield-Jackson to Illinois flights?

There are 4 cabin classes available to choose from on Atlanta Hartsfield-Jackson to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Atlanta to Illinois flights?

No. A direct flight is the cheapest option for a flight between Atlanta to Illinois.

Cheap Atlanta to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Atlanta to Illinois

Best Price Found

$100

Fastest flight time

1h 26m

Direct flights

Every day

Airports in Illinois

2 airports
The best one-way flight to Illinois from Atlanta in the past 72 hours is $100. The best round-trip flight deal from Atlanta to Illinois found on momondo in the last 72 hours is $113.
The fastest flight from Atlanta to Illinois takes 1h 26m
Direct flights go from Atlanta to Illinois every day.
There are 2 airports near Illinois: Evansville Dress Regional (EVV), Lambert-St Louis (STL)
Search flight deals

  • When did momondo last update prices for flights from Atlanta Hartsfield-Jackson Airport to Illinois?

    Prices for flights from Atlanta Hartsfield-Jackson Airport to Illinois were last updated today.

  • How many operators does momondo search for flights from Atlanta Hartsfield-Jackson Airport to Illinois?

  • How old do you have to be to fly from Atlanta Hartsfield-Jackson Airport to Illinois?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Atlanta Hartsfield-Jackson Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The required travel and health documents for your Illinois trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Illinois. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular plane model from Atlanta to Illinois?

Best airlines flying from Atlanta to Illinois

Compare and see reviews for airlines that fly from Atlanta to Illinois with momondo
Airline
Rating
Free Cancellation
Price
FrontierPriceFrom $59Free CancellationRating
5.8
3,117 reviews
Search Frontier flights
Spirit AirlinesPriceFrom $59Free CancellationRating
6.3
8,114 reviews
Search Spirit Airlines flights
DeltaPriceFrom $108Free CancellationRating
7.9
8,001 reviews
Search Delta flights
United AirlinesPriceFrom $139Free CancellationRating
7.4
8,997 reviews
Search United Airlines flights
American AirlinesPriceFrom $146Free CancellationRating
7.2
11,036 reviews
Search American Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,238 reviews
Search Southwest flights

Why use momondo?

Why should I use momondo to find a flight deal from Atlanta to Illinois?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Atlanta to Illinois for you.

Can I find flights from Atlanta to Illinois with flexible booking policies on momondo?

All flight searches from Atlanta to Illinois on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Atlanta to Illinois?

Once all potential Atlanta to Illinois flight options are in front of you, momondo lets you sort and filter flights based on preferences such as airline, price and flight times amongst many other options.

I’m not ready to book a flight from Atlanta to Illinois right now. Can momondo alert me if prices change?

If you are simply researching potential flights to Illinois, momondo offers a useful price alert feature which will track prices for flights to Illinois from Atlanta and alert you when they change.

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.
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Wed 12/3
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