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$20+ 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 12/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHM
Dec 7 — Dec 141
Sun 12/7
Sun 12/14
1 adult, Economy
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Cheap flight deals from Illinois to Alabama

Keep the following information in mind while searching for Illinois to Alabama flight deals. Data was last updated November 7, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$79
(Trip.com)

One-way from

$20
(Priceline)

Popular in

February

Cheapest in

July

Average price

$434

Good round-trip deal

$172 or less

Good one-way deal

$223 or less
Provider with most accurate pricing for Chicago (CHI)-Birmingham flight deals.
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Provider most trusted by Cheapflights users for Chicago (CHI)-Birmingham flights.
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From Illinois to Alabama
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One-way flight from Illinois to Alabama
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Highest demand for flights based on searches. 1% potential increase in price ($5 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).
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Average for round-trip flights in November 2025
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Price to beat on a round-trip flight from Illinois to Alabama.
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Price to beat on a one-way flight from Illinois to Alabama.
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Find 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 November 7, 2025.

This Kiwi.com deal was found by Cheapflights users on 11/7. 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.
Sat 12/67:41 pmORD - ATL
1 stop11h 21mMultiple Airlines
Sat 12/139:10 pmATL - ORD
Nonstop2h 14mMultiple Airlines
Deal found 11/7$79
This Priceline deal was found by Cheapflights users on 11/6. 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.
Tue 11/1812:37 pmORD - ATL
Nonstop2h 04mMultiple Airlines
Mon 11/242:05 pmATL - ORD
1 stop7h 22mMultiple Airlines
Deal found 11/6$80
This Trip.com deal was found by Cheapflights users on 11/7. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/67:10 amORD - ATL
1 stop12h 42mMultiple Airlines
Sun 12/77:27 amATL - ORD
Nonstop2h 15mMultiple Airlines
Deal found 11/7$81
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/136:30 pmORD - ATL
Nonstop2h 24mFrontier
Tue 12/21:56 pmATL - ORD
Nonstop2h 16mFrontier
Deal found 11/6$82
This Kiwi.com deal was found by Cheapflights users on 11/6. 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.
Tue 12/22:49 pmMDW - ATL
Nonstop2h 04mFrontier
Thu 12/47:30 amATL - MDW
1 stop7h 34mFrontier
Deal found 11/6$83
This Super.com deal was found by Cheapflights users on 11/5. 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 12/47:40 amORD - ATL
1 stop5h 50mFrontier
Mon 12/89:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 11/5$83
This Cheapflightsfares deal was found by Cheapflights users on 11/6. 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.
Thu 12/42:16 pmMDW - ATL
1 stop16h 27mFrontier
Thu 12/115:07 pmATL - MDW
Nonstop2h 01mFrontier
Deal found 11/6$84
This Cheapflightsfares deal was found by Cheapflights users on 11/5. 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.
Thu 12/116:05 amORD - ATL
Nonstop2h 20mFrontier
Mon 12/153:24 pmATL - ORD
1 stop9h 33mFrontier
Deal found 11/5$84
This Mytrip deal was found by Cheapflights users on 11/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:00 amORD - ATL
1 stop10h 48mFrontier
Sun 12/77:27 amATL - ORD
Nonstop2h 15mFrontier
Deal found 11/6$85
This Super.com deal was found by Cheapflights users on 11/6. 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.
Sat 12/66:00 amMDW - ATL
Nonstop2h 18mFrontier
Mon 12/88:50 amATL - MDW
Nonstop2h 02mFrontier
Deal found 11/6$86
This Kiwi.com deal was found by Cheapflights users on 11/6. 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 11/136:30 pmORD - ATL
Nonstop2h 24mFrontier
Fri 12/51:24 pmATL - ORD
Nonstop2h 16mFrontier
Deal found 11/6$86
This Super.com deal was found by Cheapflights users on 11/5. 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 12/46:15 amMDW - ATL
Nonstop2h 18mFrontier
Sun 12/79:10 pmATL - MDW
Nonstop2h 02mFrontier
Deal found 11/5$87

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 November 7, 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

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Fri 12/12

8:42 pm-11:48 pm

Nonstop2h 06m

Atlanta Hartsfield-Jackson

Sat 12/13

9:10 pm-8:45 pm

1 stop24h 35m

$88

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Tue 11/18

2:31 pm-9:23 pm

1 stop5h 52m

Atlanta Hartsfield-Jackson

Wed 11/19

10:00 am-11:14 am

Nonstop2h 14m

$97

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Tue 11/25

4:00 pm-9:22 am

1 stop16h 22m

Atlanta Hartsfield-Jackson

Wed 12/3

7:43 am-8:46 am

Nonstop2h 03m

$101

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Fri 12/5

7:25 am-9:38 pm

1 stop13h 13m

Atlanta Hartsfield-Jackson

Fri 12/12

9:10 pm-10:24 pm

Nonstop2h 14m

$102

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Fri 12/5

8:42 pm-11:48 pm

Nonstop2h 06m

Atlanta Hartsfield-Jackson

Sun 12/7

9:10 pm-10:18 pm

1 stop26h 08m

$102

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Mon 1/5

6:12 am-9:30 am

Nonstop2h 18m

Atlanta Hartsfield-Jackson

Mon 1/12

10:25 pm-11:25 pm

Nonstop2h 00m

$109

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 1/15

9:43 pm-7:29 am

1 stop8h 46m

Atlanta Hartsfield-Jackson

Sun 1/18

3:34 pm-9:44 pm

1 stop7h 10m

$124

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Mon 11/24

3:43 pm-10:49 pm

1 stop6h 06m

Atlanta Hartsfield-Jackson

Tue 11/25

2:05 pm-11:13 pm

1 stop10h 08m

$130

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Fri 1/16

9:00 am-12:08 pm

Nonstop2h 08m

Atlanta Hartsfield-Jackson

Mon 1/19

6:40 pm-7:55 pm

Nonstop2h 15m

$131

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 11/20

6:20 am-8:39 am

1 stop25h 19m

Atlanta Hartsfield-Jackson

Sat 11/22

9:40 pm-10:43 pm

Nonstop2h 03m

$131

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/6

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, March is the cheapest month in which you can book a flight from Illinois to Alabama (average of $157). Flying from Illinois to Alabama in April is currently the most expensive (average of $232). 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 November 7, 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 November 2, 2025.

Travelers seeking maximum savings on their Illinois to Alabama flight should consider departing on Monday mornings 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 November 7, 2025.

The most flights from USIL to USAL are scheduled on a Monday (15 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (11 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 November 7, 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
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Southwest
8.0
Very good
4,241 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Delta
7.9
Good
8,001 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
United Airlines
7.4
Good
9,007 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
American Airlines
7.2
Good
11,040 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines
Allegiant Air
7.2
Good
697 reviews
Southwest
8.0
Very good
4,241 reviews

Crew

8.6

Entertainment

7.5

Boarding

8.1

Comfort

8.0

Food

7.0

Overall

8.0

Reviews

1 / 20
2.0
Mediocre

Mike,Aug 2025

OKC - AUS

AC was not adequate, even on a night flight. WiFi subpar even for the airlines

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 United Airlines fly from Illinois to Alabama in about 2h 06m. The time it takes to get you to your destination can typically vary by up to 4h. The distance between Illinois and Alabama is about 591 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 Frontier, which is currently one of the cheapest options available, starting at $49. United Airlines flights start at $66 while deals on Southwest start at $66 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, March is the cheapest month in which you can book a flight from Illinois to Alabama (average of $157). Flying from Illinois to Alabama in April is currently the most expensive (average of $232). 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 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 November 7, 2025.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$97Average$187FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$187Average$330FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$423FlexibilityNo cancel feeOn-time69%
DeltaCheapest$216Average$457FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$275Average$396FlexibilityNo cancel feeOn-time63%

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