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Illinois

$47+ Cheap flights from Alabama to Illinois

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 8/22. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ORD
ago. 19 — ago. 261
mar. 8/19
mar. 8/26
1 adult, Economy
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Cheap flight deals from Alabama to Illinois

Keep the following information in mind while searching for Alabama to Illinois flight deals. Data was last updated agosto 14, 2025.

Round-trip from

$82
(Cheapflightsfares)

One-way from

$47
(Cheapflightsfares)

Popular in

March

Cheapest in

September

Average price

$341

Good round-trip deal

$82 or less

Good one-way deal

$175 or less
From Alabama to Illinois
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One-way flight from Alabama to Illinois
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Highest demand for flights based on searches. 2% potential increase in price ($9 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 August 2025
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Price to beat on a round-trip flight from Alabama to Illinois.
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Price to beat on a one-way flight from Alabama to Illinois.
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Find flight deals from Alabama to Illinois

Cheapest flights from Alabama to Illinois
Explore the most affordable flight options available from Alabama to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on agosto 14, 2025.

This Frontier deal was found by Cheapflights users on 8/14. 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.
dom. 9/1410:25 pmATL - MDW
Nonstop1h 55mFrontier
mié. 9/179:00 amMDW - ATL
Nonstop1h 58mFrontier
Deal found 8/14$82
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
vie. 11/72:11 pmATL - ORD
Nonstop2h 14mFrontier
dom. 11/95:10 amORD - ATL
Nonstop2h 05mFrontier
Deal found 8/14$82
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mié. 8/208:00 amATL - ORD
Nonstop2h 22mFrontier
vie. 8/225:10 amORD - ATL
Nonstop2h 11mFrontier
Deal found 8/12$83
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/3010:09 pmATL - ORD
Nonstop2h 24mFrontier
sáb. 9/65:40 pmORD - ATL
Nonstop2h 25mFrontier
Deal found 8/14$84
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
mié. 9/103:00 pmATL - MDW
Nonstop1h 58mFrontier
jue. 9/116:20 amMDW - ATL
Nonstop2h 07mFrontier
Deal found 8/14$85
This FlightHub deal was found by Cheapflights users on 8/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/219:16 amATL - ORD
Nonstop2h 23mFrontier
lun. 8/255:10 amORD - ATL
Nonstop2h 11mFrontier
Deal found 8/12$85
This Cheapflightsfares deal was found by Cheapflights users on 8/14. 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.
lun. 10/69:14 amATL - ORD
Nonstop2h 17mFrontier
mar. 10/143:12 pmORD - ATL
Nonstop2h 15mFrontier
Deal found 8/14$87
This Mytrip deal was found by Cheapflights users on 8/13. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 8/233:06 pmATL - ORD
Nonstop2h 20mSpirit Airlines
lun. 8/2511:21 amORD - ATL
Nonstop1h 50mSpirit Airlines
Deal found 8/13$88
This Cheapflightsfares deal was found by Cheapflights users on 8/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
mar. 10/1412:40 pmATL - MDW
Nonstop1h 58mFrontier
sáb. 10/186:15 amMDW - ATL
Nonstop2h 14mFrontier
Deal found 8/13$89
This Cheapflightsfares deal was found by Cheapflights users on 8/12. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 10/319:11 amATL - ORD
Nonstop2h 15mFrontier
dom. 11/25:10 amORD - ATL
Nonstop2h 05mFrontier
Deal found 8/12$89
This Trip.com deal was found by Cheapflights users on 8/13. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
jue. 8/2110:30 pmATL - ORD
Nonstop2h 24mFrontier
jue. 8/285:10 amORD - ATL
Nonstop2h 11mFrontier
Deal found 8/13$90
This Orbitz deal was found by Cheapflights users on 8/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
dom. 8/313:06 pmATL - ORD
Nonstop2h 20mMultiple Airlines
mié. 9/34:04 pmORD - ATL
Nonstop2h 23mMultiple Airlines
Deal found 8/13$91

Cheapflights 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, Cheapflights users made 2,558,603 searches. Data last updated agosto 14, 2025.
Use the filters below to find and compare flights from Alabama to Illinois that are best for you.

Fly from

Alabama

Fly to

Illinois

Route

Depart

Return

Price

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

mar. 10/14

12:40 pm-1:38 pm

Nonstop1h 58m

Chicago Midway

dom. 10/19

6:20 am-9:34 am

Nonstop2h 14m

$82

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

vie. 11/7

10:47 pm-11:59 pm

Nonstop2h 12m

Chicago O'Hare Intl

dom. 11/9

5:10 am-8:15 am

Nonstop2h 05m

$82

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

mar. 10/14

12:30 pm-1:47 pm

Nonstop2h 17m

Chicago O'Hare Intl

dom. 10/19

7:09 pm-10:24 pm

Nonstop2h 15m

$82

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

mié. 8/20

8:00 am-9:22 am

Nonstop2h 22m

Chicago O'Hare Intl

vie. 8/22

5:10 am-8:21 am

Nonstop2h 11m

$83

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

mié. 8/27

12:10 pm-1:33 pm

Nonstop2h 23m

Chicago O'Hare Intl

dom. 8/31

5:10 am-8:21 am

Nonstop2h 11m

$83

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

sáb. 8/30

10:09 pm-11:33 pm

Nonstop2h 24m

Chicago O'Hare Intl

dom. 8/31

5:10 am-8:21 am

Nonstop2h 11m

$83

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

sáb. 9/6

10:11 am-11:27 am

Nonstop2h 16m

Chicago O'Hare Intl

sáb. 9/6

5:40 pm-9:05 pm

Nonstop2h 25m

$84

AtlantaChicago

ATL - MDW

ATLMDW

Atlanta Hartsfield-Jackson

mié. 10/8

12:40 pm-1:38 pm

Nonstop1h 58m

Chicago Midway

dom. 10/12

6:20 am-9:34 am

Nonstop2h 14m

$85

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

vie. 10/10

10:59 pm-12:11 am

Nonstop2h 12m

Chicago O'Hare Intl

sáb. 10/18

5:45 pm-9:07 pm

Nonstop2h 22m

$85

AtlantaChicago

ATL - ORD

ATLORD

Atlanta Hartsfield-Jackson

jue. 8/21

9:16 am-10:39 am

Nonstop2h 23m

Chicago O'Hare Intl

lun. 8/25

5:10 am-8:21 am

Nonstop2h 11m

$85

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/14

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

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

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

Currently, August is the cheapest month in which you can book a flight from Alabama to Illinois (average of $245). Flying from Alabama to Illinois in March is currently the most expensive (average of $321). 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 AL to IL?

Find hourly flight availability from Alabama to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated agosto 14, 2025.

When flying from Alabama to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Alabama to Illinois

Explore weekly flight availability from Alabama to Illinois. 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 agosto 14, 2025.

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

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated agosto 14, 2025.
Peruse reviews from past customers who have flown with Southwest, Delta, and United Airlines from Alabama to Illinois to help guide your decision. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Southwest
8.0
Very good
4,244 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Delta
8.0
Very good
7,980 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
United Airlines
7.4
Good
8,916 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
American Airlines
7.2
Good
10,000 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.
Allegiant Air
7.2
Good
701 reviews
Southwest
8.0
Very good
4,244 reviews

Overall

8.0

Entertainment

7.5

Crew

8.6

Comfort

8.0

Boarding

8.1

Food

7.0

Reviews

1 / 20
8.0
Excellent

Walter,Aug 2025

OAK - SAN

Dozens of flights and I've never seen a row's beverages forgotten. I even went back and asked the attendant to check on them and nothing. I really hope it didn't have something to do with the Black mother with her kid in the row. Otherwise it was a typical Southwest flight, rapid boarding, tolerable leg room.

Related info for your journey

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

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

    The cheapest airlines for a one-way flight from Alabama to Illinois are Frontier ($47), United Airlines ($78), and Spirit Airlines ($79).

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

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

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

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

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

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

    Currently, August is the cheapest month in which you can book a flight from Alabama to Illinois (average of $245). Flying from Alabama to Illinois in March is currently the most expensive (average of $321). 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 Alabama to Illinois

See prices for flight routes from nearby airports that may be better suited for you.
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Top 4 airlines flying from Alabama to Illinois

Discover the top 4 airlines that operate flights from Alabama to Illinois. 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 agosto 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
DeltaCheapest$131Average$456FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$148Average$349FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$209Average$362FlexibilityNo cancel feeOn-time69%
SouthwestCheapest$270Average$377FlexibilityNo cancel feeOn-time63%

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