$29+ 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 4/2. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ORD
feb. 13 — feb. 201
1 adult, Economy
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Find cheap flights from Alabama to Illinois with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.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 enero 14, 2026.
Most accurate provider | eDreams 3 stars |
|---|---|
Most trusted provider | eDreams 3 stars |
Round-trip from | $58 (Frontier) |
One-way from | $33 (Frontier) |
Popular in | January |
Cheapest in | September |
Average price | $440 |
Good round-trip deal | $279 or less |
Good one-way deal | $213 or less |
Find flight deals from Alabama to Illinois
Cheapest flights from Alabama to IllinoisExplore 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 enero 14, 2026.
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 enero 14, 2026.
This Frontier deal was found by Cheapflights users on 1/13. 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.
mié. 2/186:00 am
ATL
- STL
Nonstop1h 51m
Frontier
mié. 2/258:17 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$58
This Frontier deal was found by Cheapflights users on 1/13. 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.
mié. 2/46:00 am
ATL
- STL
Nonstop1h 51m
Frontier
mié. 2/118:17 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$62
This Frontier deal was found by Cheapflights users on 1/13. 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.
vie. 2/206:00 am
ATL
- STL
Nonstop1h 51m
Frontier
mié. 2/258:17 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$63
This Frontier deal was found by Cheapflights users on 1/13. 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.
vie. 2/206:00 am
ATL
- STL
Nonstop1h 51m
Frontier
vie. 2/278:22 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$68
This Frontier deal was found by Cheapflights users on 1/13. 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.
sáb. 2/76:00 am
ATL
- STL
Nonstop1h 51m
Frontier
lun. 2/238:22 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$69
This CheapOair deal was found by Cheapflights users on 1/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
sáb. 2/218:29 pm
ATL
- MDW
Nonstop2h 04m
Frontier
dom. 2/229:04 pm
MDW
- ATL
Nonstop2h 07m
Frontier
Deal found 1/13![Frontier logo]()
$70
This Frontier deal was found by Cheapflights users on 1/13. 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.
lun. 2/26:00 am
ATL
- STL
Nonstop1h 51m
Frontier
mié. 2/48:22 pm
STL
- ATL
Nonstop1h 44m
Frontier
Deal found 1/13![Frontier logo]()
$73
This Cheapflightsfares deal was found by Cheapflights users on 1/13. 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.
sáb. 1/316:00 am
ATL
- STL
Nonstop1h 51m
Frontier
sáb. 2/148:17 pm
STL
- ATL
Nonstop1h 40m
Frontier
Deal found 1/13![Frontier logo]()
$74
This Expedia deal was found by Cheapflights users on 1/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
vie. 2/139:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
jue. 2/194:42 pm
ORD
- ATL
Nonstop2h 26m
Frontier
Deal found 1/13![Frontier logo]()
$74
This Trip.com deal was found by Cheapflights users on 1/13. 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.
vie. 2/134:49 pm
ATL
- MDW
Nonstop2h 04m
Frontier
lun. 2/162:19 pm
MDW
- ATL
Nonstop2h 03m
Frontier
Deal found 1/13![Frontier logo]()
$75
This Trip.com deal was found by Cheapflights users on 1/13. 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. 2/199:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
lun. 2/234:42 pm
ORD
- ATL
Nonstop2h 26m
Frontier
Deal found 1/13![Frontier logo]()
$76
This Kiwi.com deal was found by Cheapflights users on 1/13. 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.
mié. 2/116:04 pm
ATL
- MDW
Nonstop2h 03m
Frontier
vie. 2/206:48 pm
MDW
- ATL
Nonstop2h 14m
Frontier
Deal found 1/13![Frontier logo]()
$77
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 enero 14, 2026.
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
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
sáb. 2/7
6:00 am-6:51 am
Nonstop1h 51m
Lambert-St Louis
lun. 2/23
8:22 pm-11:02 pm
Nonstop1h 40m
$69
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
vie. 2/6
6:00 am-6:51 am
Nonstop1h 51m
Lambert-St Louis
vie. 2/13
8:20 pm-11:00 pm
Nonstop1h 40m
$94
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
lun. 2/9
10:56 pm-10:27 pm
1 stop24h 31m
Lambert-St Louis
lun. 2/23
8:22 pm-11:02 pm
Nonstop1h 40m
$108
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
jue. 4/2
10:30 am-11:33 am
Nonstop2h 03m
Chicago Midway
vie. 4/3
6:00 am-9:18 am
Nonstop2h 18m
$108
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
jue. 3/12
9:15 pm-10:19 pm
Nonstop2h 04m
Chicago Midway
sáb. 3/14
6:00 am-9:17 am
Nonstop2h 17m
$146
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
dom. 2/8
6:13 pm-9:21 am
1 stop16h 08m
Lambert-St Louis
lun. 2/9
8:22 pm-11:06 pm
Nonstop1h 44m
$147
AtlantaSt. Louis
ATL - STL
ATLSTL
Atlanta Hartsfield-Jackson
mar. 1/27
1:00 pm-11:33 pm
1 stop11h 33m
Lambert-St Louis
sáb. 1/31
12:12 pm-9:46 pm
1 stop8h 34m
$150
HuntsvilleChicago
HSV - ORD
HSVORD
Huntsville
vie. 2/20
2:49 pm-11:03 pm
1 stop8h 14m
Chicago O'Hare Intl
lun. 2/23
5:15 am-1:59 pm
1 stop8h 44m
$153
AtlantaChicago
ATL - MDW
ATLMDW
Atlanta Hartsfield-Jackson
sáb. 2/7
2:25 pm-3:20 pm
Nonstop1h 55m
Chicago Midway
sáb. 2/7
5:40 pm-8:35 pm
Nonstop1h 55m
$177
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
jue. 2/12
11:30 am-12:49 pm
Nonstop2h 19m
Chicago O'Hare Intl
jue. 2/19
2:35 pm-5:41 pm
Nonstop2h 06m
$177
Showing 1-10 of 60 results
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, March is the cheapest month in which you can book a flight from Alabama to Illinois (average of $113). Flying from Alabama to Illinois in June is currently the most expensive (average of $219). 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 enero 14, 2026.
One of the essential ways to save on airfare from Alabama to Illinois is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the evening could potentially save you up to 38% on airfare.
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 enero 14, 2026.
The most flights from USAL to USIL are scheduled on a Monday (14 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (6 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 enero 14, 2026.
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.
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
Comfort
8.0
Food
7.0
Overall
8.0
Entertainment
7.5
Boarding
8.1
Crew
8.6
Reviews
1 / 20
2.0
MediocreThomas,Dec 2025
SEA - DEN
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.
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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.
Top 5 airlines flying from Alabama to Illinois
Discover the top 5 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 enero 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$125 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$131 | Average$465 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$186 | Average$341 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$338 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$240 | Average$390 | FlexibilityNo cancel fee | On-time63% |