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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 12/25. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHM
Dec 15 — Dec 221
Mon 12/15
Mon 12/22
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 15, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$76
(FlightHub)

One-way from

$20
(Cheapflightsfares)

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 15, 2025.

This FlightHub deal was found by Cheapflights users on 11/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/86:11 amORD - ATL
Nonstop2h 20mMultiple Airlines
Wed 12/102:29 pmATL - ORD
1 stop6h 32mMultiple Airlines
Deal found 11/14$76
This Trip.com deal was found by Cheapflights users on 11/12. 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.
Wed 12/103:26 pmORD - ATL
1 stop6h 38mMultiple Airlines
Wed 12/171:15 pmATL - ORD
Nonstop2h 16mMultiple Airlines
Deal found 11/12$77
This Kiwi.com deal was found by Cheapflights users on 11/13. 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
Wed 12/37:43 amATL - MDW
Nonstop2h 03mFrontier
Deal found 11/13$78
This Super.com deal was found by Cheapflights users on 11/13. 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.
Tue 12/24:22 pmORD - ATL
Nonstop2h 17mFrontier
Wed 12/35:18 pmATL - ORD
Nonstop2h 28mFrontier
Deal found 11/13$78
This Frontier deal was found by Cheapflights users on 11/13. 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.
Tue 12/22:49 pmMDW - ATL
Nonstop2h 04mFrontier
Sat 12/61:02 pmATL - MDW
Nonstop1h 57mFrontier
Deal found 11/13$79
This Frontier deal was found by Cheapflights users on 11/13. 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.
Tue 12/24:22 pmORD - ATL
Nonstop2h 17mFrontier
Sat 12/69:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 11/13$79
This Kiwi.com deal was found by Cheapflights users on 11/13. 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 11/256:00 amORD - ATL
Nonstop2h 16mFrontier
Thu 11/2710:57 pmATL - ORD
Nonstop2h 11mFrontier
Deal found 11/13$80
This Super.com deal was found by Cheapflights users on 11/13. 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
Sun 12/75:11 pmATL - MDW
Nonstop2h 01mFrontier
Deal found 11/13$81
This Super.com deal was found by Cheapflights users on 11/14. 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 12/45:05 amORD - ATL
Nonstop2h 14mFrontier
Sun 12/79:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 11/14$81
This Kiwi.com deal was found by Cheapflights users on 11/13. 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.
Sun 12/77:27 pmMDW - ATL
Nonstop2h 13mFrontier
Tue 12/97:43 amATL - MDW
Nonstop2h 03mFrontier
Deal found 11/13$82
This Kiwi.com deal was found by Cheapflights users on 11/14. 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 12/66:11 amORD - ATL
Nonstop2h 20mFrontier
Sun 12/79:10 pmATL - ORD
Nonstop2h 14mFrontier
Deal found 11/14$82
This Cheapflightsfares deal was found by Cheapflights users on 11/14. 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.
Wed 12/102:49 pmMDW - ATL
Nonstop2h 04mFrontier
Thu 12/115:07 pmATL - MDW
Nonstop2h 01mFrontier
Deal found 11/14$83

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 15, 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

ORD - ATL

ORDATL

Chicago O'Hare Intl

Fri 11/28

6:00 am-9:16 am

Nonstop2h 16m

Atlanta Hartsfield-Jackson

Wed 12/3

5:18 pm-6:46 pm

Nonstop2h 28m

$94

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Sat 12/6

3:26 pm-11:04 pm

1 stop6h 38m

Atlanta Hartsfield-Jackson

Mon 12/8

9:10 pm-10:24 pm

Nonstop2h 14m

$97

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Sat 12/13

3:26 pm-11:04 pm

1 stop6h 38m

Atlanta Hartsfield-Jackson

Mon 12/15

9:57 pm-11:08 am

1 stop14h 11m

$113

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Thu 1/8

8:35 am-9:30 pm

1 stop11h 55m

Atlanta Hartsfield-Jackson

Mon 1/12

3:20 pm-10:41 pm

1 stop8h 21m

$116

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Thu 1/15

8:41 pm-11:39 am

1 stop13h 58m

Atlanta Hartsfield-Jackson

Sun 1/18

1:50 pm-6:58 pm

1 stop6h 08m

$124

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 1/8

6:45 am-9:49 am

Nonstop2h 04m

Atlanta Hartsfield-Jackson

Mon 1/12

9:15 pm-10:09 pm

Nonstop1h 54m

$131

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Fri 2/6

6:10 pm-9:15 pm

Nonstop2h 05m

Atlanta Hartsfield-Jackson

Fri 2/13

8:15 am-9:33 am

Nonstop2h 18m

$131

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Thu 1/8

7:05 am-10:20 am

Nonstop2h 15m

Atlanta Hartsfield-Jackson

Mon 1/12

10:53 pm-11:57 pm

Nonstop2h 04m

$131

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 2/12

5:25 am-10:00 am

1 stop3h 35m

Atlanta Hartsfield-Jackson

Sun 2/15

6:10 am-7:05 am

Nonstop1h 55m

$141

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Sat 1/24

5:40 pm-8:35 pm

Nonstop1h 55m

Atlanta Hartsfield-Jackson

Tue 1/27

7:05 am-10:35 am

1 stop4h 30m

$141

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/14

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 December is currently the most expensive (average of $238). 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 15, 2025.

It’s typically best to fly out from Illinois to Alabama in the evening. Doing so could potentially save you 12% 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 16, 2024.

Travelers seeking maximum savings on their Illinois to Alabama flight should consider departing on Monday at noon 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 15, 2025.

The most flights from USIL to USAL are scheduled on a Wednesday (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 15, 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
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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
8,011 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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
9,017 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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
11,050 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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
699 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Food

7.0

Boarding

8.1

Entertainment

7.5

Crew

8.6

Comfort

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 Delta fly from Illinois to Alabama in about 2h 04m. The time it takes to get you to your destination can typically vary by up to 4h 34m. 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 $53. Spirit Airlines flights start at $59 while deals on Southwest start at $95 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 December is currently the most expensive (average of $238). 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 4 airlines flying from Illinois to Alabama

Discover the top 4 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 15, 2025.
AirlineCheapestAverageFlexibilityOn-time
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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