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Alabama

$45+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — BHM
Oct 16 — Oct 231
Thu 10/16
Thu 10/23
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 September 16, 2025.

Round-trip from

$80
(Frontier)

One-way from

$45
(Frontier)

Popular in

October

Cheapest in

July

Average price

$377

Good round-trip deal

$119 or less

Good one-way deal

$173 or less
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. 3% potential increase in price ($11 potential increase over avg. RT price).
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Cheapest flight prices on average. 1% potential price decrease ($8 potential savings vs. average RT price).
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Average for round-trip flights in September 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 September 16, 2025.

This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/1511:00 amORD - ATL
Nonstop2h 08mFrontier
Mon 10/2010:27 pmATL - ORD
Nonstop2h 12mFrontier
Deal found 9/16$79
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/25:10 amORD - ATL
Nonstop2h 09mFrontier
Mon 10/610:27 pmATL - ORD
Nonstop2h 12mFrontier
Deal found 9/14$80
This Frontier deal was found by Cheapflights users on 9/15. 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 10/25:10 amORD - ATL
Nonstop2h 09mFrontier
Tue 10/712:30 pmATL - ORD
Nonstop2h 17mFrontier
Deal found 9/15$81
This Frontier deal was found by Cheapflights users on 9/15. 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.
Fri 10/35:50 pmORD - ATL
Nonstop2h 28mFrontier
Tue 10/712:30 pmATL - ORD
Nonstop2h 17mFrontier
Deal found 9/15$82
This Frontier deal was found by Cheapflights users on 9/14. 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 Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/249:00 amMDW - ATL
Nonstop1h 58mFrontier
Thu 9/2510:25 pmATL - MDW
Nonstop1h 55mFrontier
Deal found 9/14$83
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 10/46:15 amMDW - ATL
Nonstop2h 07mFrontier
Mon 10/610:46 pmATL - MDW
Nonstop1h 55mFrontier
Deal found 9/15$84
This Gotogate deal was found by Cheapflights users on 9/16. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/311:37 pmMDW - ATL
Nonstop1h 58mFrontier
Fri 11/79:05 pmATL - MDW
Nonstop2h 03mFrontier
Deal found 9/16$85
This Frontier deal was found by Cheapflights users on 9/15. 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 10/25:10 amORD - ATL
Nonstop2h 09mFrontier
Fri 10/310:27 pmATL - ORD
Nonstop2h 12mFrontier
Deal found 9/15$87
This Frontier deal was found by Cheapflights users on 9/15. 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.
Wed 10/111:45 amORD - ATL
Nonstop2h 12mFrontier
Wed 10/83:21 pmATL - ORD
Nonstop2h 19mFrontier
Deal found 9/15$88
This Kiwi.com deal was found by Cheapflights users on 9/15. 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 9/232:32 pmMDW - ATL
Nonstop2h 01mFrontier
Tue 10/2112:40 pmATL - MDW
Nonstop1h 58mFrontier
Deal found 9/15$89
This Frontier deal was found by Cheapflights users on 9/15. 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.
Mon 9/295:10 amORD - ATL
Nonstop2h 09mFrontier
Mon 10/62:59 pmATL - ORD
Nonstop2h 18mFrontier
Deal found 9/15$89
This Cheapflightsfares deal was found by Cheapflights users on 9/16. 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 10/1511:00 amORD - ATL
Nonstop2h 08mFrontier
Wed 10/154:34 pmATL - ORD
1 stop8h 25mFrontier
Deal found 9/16$91

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 September 16, 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

Wed 10/15

1:15 pm-4:05 pm

Nonstop1h 50m

Atlanta Hartsfield-Jackson

Wed 10/15

6:30 pm-7:25 pm

Nonstop1h 55m

$137

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Wed 10/8

2:30 pm-5:35 pm

Nonstop2h 05m

Atlanta Hartsfield-Jackson

Wed 10/15

10:15 am-11:31 am

Nonstop2h 16m

$137

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Wed 10/15

7:10 am-10:13 am

Nonstop2h 03m

Atlanta Hartsfield-Jackson

Wed 10/22

8:10 am-9:26 am

Nonstop2h 16m

$137

St. LouisAtlanta

STL - ATL

STLATL

Lambert-St Louis

Mon 9/29

7:55 pm-9:55 pm

1 stop25h 00m

Atlanta Hartsfield-Jackson

Mon 10/6

7:34 am-9:07 am

1 stop26h 33m

$145

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Wed 10/8

10:05 am-3:35 pm

1 stop4h 30m

Atlanta Hartsfield-Jackson

Wed 10/15

6:30 pm-7:25 pm

Nonstop1h 55m

$147

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Wed 10/15

7:10 am-10:13 am

Nonstop2h 03m

Atlanta Hartsfield-Jackson

Mon 10/20

3:41 pm-5:00 pm

Nonstop2h 19m

$147

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Thu 10/30

5:15 pm-8:05 pm

Nonstop1h 50m

Atlanta Hartsfield-Jackson

Mon 11/3

3:55 pm-4:50 pm

Nonstop1h 55m

$157

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Tue 10/28

3:00 pm-5:50 pm

Nonstop1h 50m

Atlanta Hartsfield-Jackson

Thu 10/30

7:00 am-12:45 pm

1 stop6h 45m

$157

ChicagoAtlanta

ORD - ATL

ORDATL

Chicago O'Hare Intl

Mon 12/22

6:20 pm-9:37 pm

Nonstop2h 17m

Atlanta Hartsfield-Jackson

Thu 12/25

10:20 am-11:41 am

Nonstop2h 21m

$157

ChicagoAtlanta

MDW - ATL

MDWATL

Chicago Midway

Tue 10/14

5:50 am-12:40 pm

1 stop5h 50m

Atlanta Hartsfield-Jackson

Tue 10/14

7:00 pm-10:05 pm

1 stop4h 05m

$157

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/14

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, August is the cheapest month in which you can book a flight from Illinois to Alabama (average of $363). Flying from Illinois to Alabama in March is currently the most expensive (average of $457). 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 September 16, 2025.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Alabama as you normally would.

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 September 16, 2025.

The most flights from USIL to USAL are scheduled on a Monday (17 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (10 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 September 16, 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
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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
4,242 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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
8.0
Very good
7,957 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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
8,924 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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
10,000 reviews
Southwest
8.0
Very good
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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
4,242 reviews

Comfort

8.0

Food

7.0

Crew

8.6

Boarding

8.1

Overall

8.0

Entertainment

7.5

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 Southwest, United Airlines, and Frontier fly from Illinois to Alabama in about 1h 50m. The time it takes to get you to your destination can typically vary by up to 23h 10m. 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 United Airlines, which is currently one of the cheapest options available, starting at $68. American Airlines flights start at $69 while deals on Southwest start at $69 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, August is the cheapest month in which you can book a flight from Illinois to Alabama (average of $363). Flying from Illinois to Alabama in March is currently the most expensive (average of $457). 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 September 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$157Average$332FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$424FlexibilityNo cancel feeOn-time69%
Spirit AirlinesCheapest$214Average$233FlexibilityNo cancel feeOn-time65%
DeltaCheapest$232Average$466FlexibilityNo cancel feeOn-timeN/A
SouthwestCheapest$275Average$407FlexibilityNo cancel feeOn-time63%

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