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Alabama

$19+ Cheap flights from Illinois to Alabama

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 1/21. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHM
Jan 11 — Jan 181
Sun 1/11
Sun 1/18
1 adult, Economy
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Cheap flight deals from Illinois to Alabama

Cheapest flights from Illinois to Alabama
Explore the most affordable flight options available from Illinois to Alabama. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 12, 2025.

This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Thu 12/1810:42 amSTL - ATL
Nonstop1h 41mFrontier
Thu 1/81:56 pmATL - STL
Nonstop1h 52mFrontier
Deal found 12/9$88
This Kiwi.com deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:12 amMDW - ATL
Nonstop2h 18mFrontier
Thu 1/19:10 pmATL - MDW
Nonstop2h 02mFrontier
Deal found 12/10$97
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:12 amMDW - ATL
Nonstop2h 18mFrontier
Wed 12/319:10 pmATL - MDW
Nonstop2h 02mFrontier
Deal found 12/10$98
This CheapOair deal was found by Cheapflights users on 12/10. 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.
Wed 12/316:12 amMDW - ATL
Nonstop2h 18mFrontier
Wed 1/79:15 pmATL - MDW
Nonstop2h 02mFrontier
Deal found 12/10$99
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 amORD - ATL
Nonstop2h 20mFrontier
Wed 1/79:25 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 12/10$101
This Kiwi.com deal was found by Cheapflights users on 12/9. 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.
Wed 12/316:05 amORD - ATL
Nonstop2h 20mFrontier
Thu 1/19:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 12/9$106
This Expedia deal was found by Cheapflights users on 12/10. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/305:35 amORD - ATL
1 stop25h 10mFrontier
Wed 1/79:25 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 12/10$110
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 amORD - ATL
Nonstop2h 20mFrontier
Wed 12/319:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 12/10$120
This Frontier deal was found by Cheapflights users on 12/10. 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.
Thu 12/186:00 amORD - ATL
Nonstop2h 20mFrontier
Wed 12/319:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 12/10$124
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/2510:42 amSTL - ATL
Nonstop1h 41mFrontier
Thu 1/18:55 amATL - STL
Nonstop1h 45mFrontier
Deal found 12/10$125
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1810:42 amSTL - ATL
Nonstop1h 41mFrontier
Sun 12/218:55 amATL - STL
Nonstop1h 45mFrontier
Deal found 12/10$126
This Super.com deal was found by Cheapflights users on 12/10. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/172:49 pmMDW - ATL
Nonstop2h 04mFrontier
Sat 1/176:25 amATL - MDW
Nonstop2h 02mFrontier
Deal found 12/10$127

Find flight deals from Illinois to Alabama

Keep the following information in mind while searching for Illinois to Alabama flight deals. Data was last updated December 12, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$65
(Super.com)

One-way from

$19
(Priceline)

Popular in

February

Cheapest in

July

Average price

$411

Good round-trip deal

$84 or less

Good one-way deal

$174 or less
Provider with most accurate pricing for Chicago (CHI)-Birmingham flight deals.
Search Deals
Provider most trusted by Cheapflights users for Chicago (CHI)-Birmingham flights.
Search Deals
From Illinois to Alabama
Search Deals
One-way flight from Illinois to Alabama
Search Deals
Highest demand for flights based on searches. 2% potential increase in price ($10 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($6 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals
Price to beat on a round-trip flight from Illinois to Alabama.
Search Deals
Price to beat on a one-way flight from Illinois to Alabama.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Illinois to Alabama 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 December 12, 2025.
Use the filters below to find and compare flights from Illinois to Alabama that are best for you.

Fly from

Illinois

Fly to

Alabama

Route

Depart

Return

Price

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 1/9

3:43 pm-6:28 pm

Nonstop1h 45m

Atlanta Hartsfield-Jackson

Sun 1/11

1:56 pm-2:48 pm

Nonstop1h 52m

$93

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 1/9

3:43 pm-6:28 pm

Nonstop1h 45m

Atlanta Hartsfield-Jackson

Fri 1/16

6:00 am-6:51 am

Nonstop1h 51m

$95

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 1/15

6:10 am-9:27 am

Nonstop2h 17m

Atlanta Hartsfield-Jackson

Sat 1/17

6:25 am-7:27 am

Nonstop2h 02m

$98

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Fri 1/30

8:22 pm-11:06 pm

Nonstop1h 44m

Atlanta Hartsfield-Jackson

Mon 2/2

4:13 pm-11:33 pm

1 stop8h 20m

$128

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Fri 1/30

6:57 pm-9:02 am

1 stop13h 05m

Atlanta Hartsfield-Jackson

Sat 1/31

3:26 pm-9:03 pm

1 stop6h 37m

$130

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Tue 1/27

5:59 pm-9:15 pm

Nonstop2h 16m

Atlanta Hartsfield-Jackson

Sat 1/31

9:06 am-10:13 am

Nonstop2h 07m

$137

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Sat 1/31

2:59 pm-6:04 pm

Nonstop2h 05m

Atlanta Hartsfield-Jackson

Tue 2/3

12:35 pm-1:40 pm

Nonstop2h 05m

$137

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Wed 1/7

8:20 am-3:05 pm

2 stops5h 45m

Atlanta Hartsfield-Jackson

Tue 1/13

3:15 pm-7:05 pm

1 stop4h 50m

$142

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Thu 1/8

6:00 am-8:45 am

Nonstop1h 45m

Atlanta Hartsfield-Jackson

Tue 1/13

8:05 am-8:53 am

Nonstop1h 48m

$144

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Wed 2/25

8:30 am-5:53 pm

1 stop8h 23m

Atlanta Hartsfield-Jackson

Sun 3/1

7:40 am-2:05 pm

1 stop7h 25m

$145

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/11

Showing 1-10 of 60 results
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Best time to book a flight from Illinois to Alabama

Have a flexible travel schedule? Discover the best time to fly to Alabama from Illinois 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 Illinois to Alabama

What is the cheapest month to book a flight from Illinois to Alabama?

Currently, January is the cheapest month in which you can book a flight from Illinois to Alabama (average of $82). Flying from Illinois to Alabama in December is currently the most expensive (average of $259). 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 IL to AL?

Find hourly flight availability from Illinois to Alabama. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 12, 2025.

It’s typically best to fly out from Illinois to Alabama in the evening. Doing so could potentially save you 9% on the flight price compared to flying at noon, which is usually more expensive.

What is the cheapest day to fly from Illinois to Alabama?

Use this chart to determine the cheapest time to fly round-trip from Illinois to Alabama. Price data was last updated on December 6, 2025.

Travelers seeking maximum savings on their Illinois to Alabama flight should consider departing on Monday afternoons when fares are most often at their lowest. Sunday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Weekly flight availability from Illinois to Alabama

Explore weekly flight availability from Illinois to Alabama. 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 December 12, 2025.

The most flights from USIL to USAL are scheduled on a Monday (15 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (9 on average).

Reviews of airlines servicing Alabama

Get insights into the airlines that provide service to Alabama. 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 Alabama. Reviews last updated December 12, 2025.
Read reviews from past customers who have flown Southwest, Delta, and United Airlines from Illinois to Alabama. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Southwest
7.9
Good
4,252 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Delta
7.9
Good
8,008 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
United Airlines
7.4
Good
9,095 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
American Airlines
7.2
Good
11,048 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am
Allegiant Air
7.2
Good
699 reviews
Southwest
7.9
Good
4,252 reviews

Boarding

8.1

Overall

7.9

Comfort

8.0

Crew

8.6

Food

7.0

Entertainment

7.5

Reviews

1 / 20
2.0
Mediocre

Thomas,Dec 2025

SEA - DEN

Plane two hours late in leaving 1:00 pm west coat time got home next day at 2:45am most car rental places are closed and don’t open till 5am

Related info for your journey

Find useful and relevant information for your journey from Illinois to Alabama. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Illinois to Alabama?

    Airlines like Frontier, Spirit Airlines, and Delta fly from Illinois to Alabama in about 1h 45m. The time it takes to get you to your destination can typically vary by up to 11h 20m. The distance between Illinois and Alabama is about 484 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest airlines to fly from Illinois to Alabama one-way?

    To fly one-way, consider booking your trip with Allegiant Air, which is currently one of the cheapest options available, starting at $50. Spirit Airlines flights start at $84 while deals on Delta start at $93 one-way.

  • Can I find deals for flights from Illinois to Alabama that include hotel bookings?

    Yes. In addition to deals on Illinois to Alabama flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Alabama?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Alabama.

  • Can I find deals for business class flights from Illinois to Alabama?

    Yes. Cheapflights offers flight deals from Illinois to Alabama 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 Illinois to Alabama?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Alabama (average of $82). Flying from Illinois to Alabama in December is currently the most expensive (average of $259). 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

Browse thousands of different options on Cheapflights for your next trip

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Alternative routes for Illinois to Alabama

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Alabama

Discover the top 5 airlines that operate flights from Illinois to Alabama. 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 December 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$82Average$168FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$187Average$331FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$448FlexibilityNo cancel feeOn-time69%
DeltaCheapest$232Average$452FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$269Average$396FlexibilityNo cancel feeOn-time63%

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