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Cheap flights from Atlanta to Illinois from $28

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 4/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 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.
Frontier Logo
6:00 am - 6:50 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
8:23 pm - 11:09 pm
STL
-
ATL
1h 46mnonstop
$76Frontier
Sat, Apr 18 - Sat, Apr 18
Frontier Logo
8:05 am - 8:55 am
ATL
-
STL
1h 50mnonstop
Frontier Logo
5:33 pm - 8:25 pm
STL
-
ATL
1h 52mnonstop
$77Frontier
Wed, Jun 3 - Wed, Jun 10
Spirit Airlines Logo
9:12 am - 10:23 am
ATL
-
ORD
2h 11mnonstop
Spirit Airlines Logo
11:28 am - 2:27 pm
ORD
-
ATL
1h 59mnonstop
$83Spirit Airlines
Wed, Apr 15 - Sun, Apr 19
Spirit Airlines Logo
9:12 am - 10:23 am
ATL
-
ORD
2h 11mnonstop
Spirit Airlines Logo
11:28 am - 2:27 pm
ORD
-
ATL
1h 59mnonstop
$85Spirit Airlines
Fri, Apr 17 - Sun, Apr 19
United Airlines Logo
8:12 pm - 11:59 pm
ATL
-
CMI
4h 47m
1 stop
United Airlines Logo
1:32 pm - 9:40 pm
CMI
-
ATL
7h 08m
1 stop
$308United Airlines
Sun, Jun 14 - Sun, Jun 21
American Airlines Logo
8:09 pm - 11:37 pm
ATL
-
PIA
4h 28m
1 stop
American Airlines Logo
4:20 pm - 11:58 pm
PIA
-
ATL
6h 38m
1 stop
$310American Airlines
Wed, May 20 - Tue, May 26
American Airlines Logo
7:03 am - 12:52 pm
ATL
-
PIA
6h 49m
2 stops
American Airlines Logo
1:54 pm - 7:27 pm
PIA
-
ATL
4h 33m
1 stop
$315American Airlines
Mon, May 4 - Tue, May 12
Delta Logo
9:02 am - 9:30 am
ATL
-
EVV
1h 28mnonstop
Delta Logo
1:42 pm - 4:14 pm
EVV
-
ATL
1h 32mnonstop
$339Delta
Fri, May 15 - Fri, May 22
United Airlines Logo
1:18 pm - 5:28 pm
ATL
-
CMI
5h 10m
1 stop
United Airlines Logo
5:45 am - 12:19 pm
CMI
-
ATL
5h 34m
1 stop
$368United Airlines
Sat, Aug 29 - Tue, Sep 1
Delta Logo
9:58 am - 10:30 am
ATL
-
EVV
1h 32mnonstop
Delta Logo
6:00 am - 8:34 am
EVV
-
ATL
1h 34mnonstop
$439Delta
Wed, Apr 15 - Sat, Apr 18

Spirit Airlines flights from Atlanta to Illinois

Our best Spirit Airlines deals on Atlanta to Illinois flight tickets
Spirit Airlines
Apr 15
ATL9:12 amAtlanta Hartsfield-Jackson
2h 11m
ORD10:23 amChicago O'Hare Intl
Apr 19
ORD11:28 amChicago O'Hare Intl
1h 59m
ATL2:27 pmAtlanta Hartsfield-Jackson
$83
Spirit Airlines
Apr 17
ATL9:12 amAtlanta Hartsfield-Jackson
2h 11m
ORD10:23 amChicago O'Hare Intl
Apr 19
ORD11:28 amChicago O'Hare Intl
1h 59m
ATL2:27 pmAtlanta Hartsfield-Jackson
$85
Spirit Airlines
Apr 17
ATL9:12 amAtlanta Hartsfield-Jackson
2h 11m
ORD10:23 amChicago O'Hare Intl
Apr 19
ORD11:28 amChicago O'Hare Intl
1h 59m
ATL2:27 pmAtlanta Hartsfield-Jackson
$86

Frontier flights from Atlanta to Illinois

Our best Frontier deals on Atlanta to Illinois flight tickets
Frontier
Apr 18
ATL6:00 amAtlanta Hartsfield-Jackson
1h 50m
STL6:50 amLambert-St Louis
Apr 18
STL8:23 pmLambert-St Louis
1h 46m
ATL11:09 pmAtlanta Hartsfield-Jackson
$76
Frontier
Jun 3
ATL8:05 amAtlanta Hartsfield-Jackson
1h 50m
STL8:55 amLambert-St Louis
Jun 10
STL5:33 pmLambert-St Louis
1h 52m
ATL8:25 pmAtlanta Hartsfield-Jackson
$77
Frontier
Apr 18
ATL6:00 amAtlanta Hartsfield-Jackson
1h 50m
STL6:50 amLambert-St Louis
Apr 20
STL8:23 pmLambert-St Louis
1h 46m
ATL11:09 pmAtlanta Hartsfield-Jackson
$79

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 April 3, 2026.
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

Cheapest round-trip

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Sat 4/18

6:00 am-6:50 am

Nonstop1h 50m

Lambert-St Louis

Sat 4/18

8:23 pm-11:09 pm

Nonstop1h 46m

$76

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Wed 6/3

8:05 am-8:55 am

Nonstop1h 50m

Lambert-St Louis

Wed 6/10

5:33 pm-8:25 pm

Nonstop1h 52m

$77

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Wed 4/15

9:12 am-10:23 am

Nonstop2h 11m

Chicago O'Hare Intl

Sun 4/19

11:28 am-2:27 pm

Nonstop1h 59m

$83

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

Fri 4/17

9:12 am-10:23 am

Nonstop2h 11m

Chicago O'Hare Intl

Sun 4/19

11:28 am-2:27 pm

Nonstop1h 59m

$85

AtlantaChampaign

ATL - CMI

ATLCMI

Atlanta Hartsfield-Jackson

Sun 6/14

8:12 pm-11:59 pm

1 stop4h 47m

Champaign University-Willard

Sun 6/21

1:32 pm-9:40 pm

1 stop7h 08m

$308

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Wed 5/20

8:09 pm-11:37 pm

1 stop4h 28m

Greater Peoria

Tue 5/26

4:20 pm-11:58 pm

1 stop6h 38m

$310

AtlantaPeoria

ATL - PIA

ATLPIA

Atlanta Hartsfield-Jackson

Mon 5/4

7:03 am-12:52 pm

2 stops6h 49m

Greater Peoria

Tue 5/12

1:54 pm-7:27 pm

1 stop4h 33m

$315
Quickest round-trip

AtlantaEvansville

ATL - EVV

ATLEVV

Atlanta Hartsfield-Jackson

Fri 5/15

9:02 am-9:30 am

Nonstop1h 28m

Evansville Dress Regional

Fri 5/22

1:42 pm-4:14 pm

Nonstop1h 32m

$339

AtlantaChampaign

ATL - CMI

ATLCMI

Atlanta Hartsfield-Jackson

Sat 8/29

1:18 pm-5:28 pm

1 stop5h 10m

Champaign University-Willard

Tue 9/1

5:45 am-12:19 pm

1 stop5h 34m

$368

AtlantaEvansville

ATL - EVV

ATLEVV

Atlanta Hartsfield-Jackson

Wed 4/15

9:58 am-10:30 am

Nonstop1h 32m

Evansville Dress Regional

Sat 4/18

6:00 am-8:34 am

Nonstop1h 34m

$439

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 $131, 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 $157.

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 $210. Flights from Atlanta to Illinois on a Monday will generally be more expensive and average around $336. 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 $177. Flights in the afternoon are often more expensive with an average ticket price of $289.

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 $189 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 $155 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

$139

Fastest flight time

1h 24m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Atlanta in the past 72 hours is $139. The best round-trip flight deal from Atlanta to Illinois found on momondo in the last 72 hours is $167.
The fastest flight from Atlanta to Illinois takes 1h 24m
Direct flights go from Atlanta to Illinois every day.
There are 98 airports in Illinois. From Atlanta there are direct flights to Evansville Dress Regional (EVV), Lambert-St Louis (STL), Bloomington-Normal (BMI).
Search flight deals

Frequently asked questions about flying from Atlanta to Illinois

  • 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
Spirit AirlinesPriceFrom $48Free CancellationRating
6.3
8,578 reviews
Search Spirit Airlines flights
FrontierPriceFrom $58Free CancellationRating
5.7
3,000 reviews
Search Frontier flights
DeltaPriceFrom $97Free CancellationRating
7.9
8,375 reviews
Search Delta flights
United AirlinesPriceFrom $140Free CancellationRating
7.4
9,539 reviews
Search United Airlines flights
American AirlinesPriceFrom $143Free CancellationRating
7.1
11,552 reviews
Search American Airlines flights
SouthwestPriceFrom $157Free CancellationRating
8.0
4,344 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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