Cheap flights from Alabama to Illinois from $40

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Alabama to Illinois departing on 7/8. 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

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Alabama to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
Frontier Logo
4:43 pm - 5:37 pm
ATL
-
STL
1h 54mnonstop
Frontier Logo
6:34 pm - 9:37 pm
STL
-
ATL
2h 03mnonstop
$75Frontier
Thu, Jul 16 - Thu, Jul 23
Frontier Logo
4:43 pm - 5:37 pm
ATL
-
STL
1h 54mnonstop
Frontier Logo
6:34 pm - 9:37 pm
STL
-
ATL
2h 03mnonstop
$76Frontier
Thu, Jul 16 - Sun, Jul 19
Frontier Logo
4:43 pm - 5:37 pm
ATL
-
STL
1h 54mnonstop
Frontier Logo
6:34 pm - 9:37 pm
STL
-
ATL
2h 03mnonstop
$77Frontier
Thu, Jul 9 - Sun, Jul 12
Delta Logo
6:45 am - 9:59 am
CHA
-
MDW
4h 14m
1 stop
Delta Logo
6:05 am - 1:47 pm
MDW
-
CHA
6h 42m
1 stop
$197Delta
Tue, Aug 18 - Sun, Sep 13
Delta Logo
6:00 am - 10:42 am
CHA
-
ORD
5h 42m
1 stop
Delta Logo
5:30 am - 12:26 pm
ORD
-
CHA
5h 56m
1 stop
$197Delta
Wed, Aug 19 - Sun, Aug 23
United Airlines Logo
6:00 am - 6:59 am
CHA
-
ORD
1h 59mnonstop
United Airlines Logo
6:55 am - 9:44 am
ORD
-
CHA
1h 49mnonstop
$249United Airlines
Fri, Jul 17 - Sun, Jul 19
American Airlines Logo
5:04 am - 7:30 am
HSV
-
ORD
2h 26mnonstop
American Airlines Logo
10:32 pm - 12:21 am
ORD
-
HSV
1h 49mnonstop
$269American Airlines
Fri, Jul 24 - Fri, Jul 31
American Airlines Logo
6:22 am - 8:49 am
BHM
-
ORD
2h 27mnonstop
American Airlines Logo
9:30 pm - 11:29 pm
ORD
-
BHM
1h 59mnonstop
$299American Airlines
Tue, Jul 7 - Tue, Jul 14
Southwest Logo
5:00 am - 6:50 am
BHM
-
MDW
1h 50mnonstop
Southwest Logo
3:00 pm - 4:40 pm
MDW
-
BHM
1h 40mnonstop
$299Southwest
Tue, Jul 7 - Wed, Jul 8
Southwest Logo
5:00 am - 6:50 am
BHM
-
MDW
1h 50mnonstop
Southwest Logo
4:35 pm - 11:40 pm
MDW
-
BHM
7h 05m
1 stop
$309Southwest
Tue, Jul 7 - Wed, Jul 8

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United Airlines flights from Alabama to Illinois

Our best United Airlines deals on Alabama to Illinois flight tickets
United Airlines
Jul 24
CHA6:00 amChattanooga Lovell Field
1h 59m
ORD6:59 amChicago O'Hare Intl
Jul 25
ORD5:50 pmChicago O'Hare Intl
1h 59m
CHA8:49 pmChattanooga Lovell Field
$249
United Airlines
Jun 26
CHA6:00 amChattanooga Lovell Field
2h 00m
ORD7:00 amChicago O'Hare Intl
Aug 1
ORD6:55 amChicago O'Hare Intl
1h 49m
CHA9:44 amChattanooga Lovell Field
$294
United Airlines
Jun 30
CHA1:53 pmChattanooga Lovell Field
2h 02m
ORD2:55 pmChicago O'Hare Intl
Jul 11
ORD2:30 pmChicago O'Hare Intl
1h 53m
CHA5:23 pmChattanooga Lovell Field
$319

Frontier flights from Alabama to Illinois

Our best Frontier deals on Alabama to Illinois flight tickets
Frontier
Jul 9
ATL4:43 pmAtlanta Hartsfield-Jackson
1h 54m
STL5:37 pmLambert-St Louis
Jul 12
STL6:34 pmLambert-St Louis
2h 03m
ATL9:37 pmAtlanta Hartsfield-Jackson
$75
Frontier
Jul 16
ATL4:43 pmAtlanta Hartsfield-Jackson
1h 54m
STL5:37 pmLambert-St Louis
Jul 19
STL6:34 pmLambert-St Louis
2h 03m
ATL9:37 pmAtlanta Hartsfield-Jackson
$76
Frontier
Jul 9
ATL4:43 pmAtlanta Hartsfield-Jackson
1h 54m
STL5:37 pmLambert-St Louis
Jul 12
STL6:34 pmLambert-St Louis
2h 03m
ATL9:37 pmAtlanta Hartsfield-Jackson
$77

momondo Fare Finder

 
Customize your flight search to find flights from Alabama 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 June 21, 2026.
Use the filters below to find and compare flights from Alabama 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

Thu 7/16

4:43 pm-5:37 pm

Nonstop1h 54m

Lambert-St Louis

Thu 7/23

6:34 pm-9:37 pm

Nonstop2h 03m

$75

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Thu 7/16

4:43 pm-5:37 pm

Nonstop1h 54m

Lambert-St Louis

Sun 7/19

6:34 pm-9:37 pm

Nonstop2h 03m

$76

AtlantaSt. Louis

ATL - STL

ATLSTL

Atlanta Hartsfield-Jackson

Thu 7/9

4:43 pm-5:37 pm

Nonstop1h 54m

Lambert-St Louis

Sun 7/12

6:34 pm-9:37 pm

Nonstop2h 03m

$77

ChattanoogaChicago

CHA - MDW

CHAMDW

Chattanooga Lovell Field

Tue 8/18

6:45 am-9:59 am

1 stop4h 14m

Chicago Midway

Sun 9/13

6:05 am-1:47 pm

1 stop6h 42m

$197

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Wed 8/19

6:00 am-10:42 am

1 stop5h 42m

Chicago O'Hare Intl

Sun 8/23

5:30 am-12:26 pm

1 stop5h 56m

$197

ChattanoogaChicago

CHA - ORD

CHAORD

Chattanooga Lovell Field

Fri 7/17

6:00 am-6:59 am

Nonstop1h 59m

Chicago O'Hare Intl

Sun 7/19

6:55 am-9:44 am

Nonstop1h 49m

$249

HuntsvilleChicago

HSV - ORD

HSVORD

Huntsville

Fri 7/24

5:04 am-7:30 am

Nonstop2h 26m

Chicago O'Hare Intl

Fri 7/31

10:32 pm-12:21 am

Nonstop1h 49m

$269

BirminghamChicago

BHM - ORD

BHMORD

Birmingham

Tue 7/7

6:22 am-8:49 am

Nonstop2h 27m

Chicago O'Hare Intl

Tue 7/14

9:30 pm-11:29 pm

Nonstop1h 59m

$299
Quickest round-trip

BirminghamChicago

BHM - MDW

BHMMDW

Birmingham

Tue 7/7

5:00 am-6:50 am

Nonstop1h 50m

Chicago Midway

Wed 7/8

3:00 pm-4:40 pm

Nonstop1h 40m

$299

BirminghamChicago

BHM - MDW

BHMMDW

Birmingham

Tue 7/7

5:00 am-6:50 am

Nonstop1h 50m

Chicago Midway

Wed 7/8

4:35 pm-11:40 pm

1 stop7h 05m

$309

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 Alabama 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 Alabama is in October. Flight prices, which tend to average around $78, 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 October, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $116.

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

The cheapest day to depart from Alabama to Illinois is on a Thursday when prices can be found for as low as $445. Flights from Alabama to Illinois on a Monday will generally be more expensive and average around $667. 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 afternoon. Flights from Alabama to Illinois during this time can be as low as $449. Flights at noon are often more expensive with an average ticket price of $602.

What is the cheapest Alabama to Illinois flight route?

Fly from Gulf Shores Jack Edwards to Belleville for the best Alabama - Illinois flight prices

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

You are more likely to see cheaper flights to Illinois from Alabama when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $388 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Alabama for as low as $299 on momondo.

What cabin class options are available on Alabama to Illinois flights?

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

Cheap Alabama to Illinois flight deals and tips

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

Best Price Found

$253

Fastest flight time

1h 26m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Alabama in the past 72 hours is $253. The best round-trip flight deal from Alabama to Illinois found on momondo in the last 72 hours is $379.
The fastest flight from Alabama to Illinois takes 1h 26m
Direct flights go from Alabama to Illinois every day.
There are 98 airports in Illinois. From Alabama there are direct flights to Lambert-St Louis (STL).

Frequently asked questions about flying from Alabama to Illinois

  • When did momondo last update prices for flights from Alabama to Illinois?

    Prices for flights from Alabama to Illinois are refreshed on a daily basis.

  • How many operators does momondo search for flights from Alabama to Illinois?

  • How old do you have to be to fly from Alabama to Illinois?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Alabama to Illinois.

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

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Alabama to Illinois

Compare and see reviews for airlines that fly from Alabama to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $82Free CancellationRating
7.3
692 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $199Free CancellationRating
7.1
11,733 reviews
Search American Airlines flights
United AirlinesPriceFrom $209Free CancellationRating
7.4
9,871 reviews
Search United Airlines flights
DeltaPriceFrom $234Free CancellationRating
7.8
8,422 reviews
Search Delta flights
SouthwestPriceFrom $260Free CancellationRating
7.9
4,242 reviews
Search Southwest flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Illinois from Alabama.

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

Flights from Alabama to Illinois with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Alabama to Illinois flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

Price alerts on flights to Illinois from Alabama are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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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1 adult
Tue 7/21
Tue 7/28

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Popular flights according to clicks in the last 7 days on momondo