$27+ 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 3/18. Fares are subject to change and may not be available on all flights or dates of travel.
BHM — ORD
Apr 3 — Apr 101
Round-trip
1 adult, Economy
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Find cheap flights from Alabama to Illinois with Cheapflights
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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 March 4, 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 March 4, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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 5/287:03 pm
ATL
- MDW
Nonstop2h 03m
Frontier
Mon 6/19:16 pm
MDW
- ATL
Nonstop2h 14m
Frontier
Deal found 3/3![Frontier logo]()
$80
This Frontier deal was found by Cheapflights users on 3/3. 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 3/247:00 am
ATL
- ORD
Nonstop2h 23m
Frontier
Wed 3/259:28 am
ORD
- ATL
Nonstop2h 16m
Frontier
Deal found 3/3![Frontier logo]()
$80
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Wed 4/19:15 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Tue 4/76:00 am
MDW
- ATL
Nonstop2h 20m
Frontier
Deal found 3/3![Frontier logo]()
$81
This Super.com deal was found by Cheapflights users on 2/28. 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.
Wed 5/139:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
Sun 5/175:01 am
ORD
- ATL
Nonstop2h 09m
Frontier
Deal found 2/28![Frontier logo]()
$81
This Expedia deal was found by Cheapflights users on 3/2. 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.
Thu 4/99:17 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Sat 4/116:40 am
MDW
- ATL
Nonstop2h 15m
Frontier
Deal found 3/2![Frontier logo]()
$82
This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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.
Sat 4/119:47 am
ATL
- ORD
Nonstop2h 21m
Frontier
Sun 4/125:05 am
ORD
- ATL
Nonstop2h 13m
Frontier
Deal found 3/3![Frontier logo]()
$82
This Frontier deal was found by Cheapflights users on 2/27. 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 5/159:15 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Sun 5/176:00 am
MDW
- ATL
Nonstop2h 15m
Frontier
Deal found 2/27![Frontier logo]()
$83
This CheapOair deal was found by Cheapflights users on 3/3. 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.
Wed 4/89:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
Sun 4/125:05 am
ORD
- ATL
Nonstop2h 13m
Frontier
Deal found 3/3![Frontier logo]()
$83
This Cheapflightsfares deal was found by Cheapflights users on 3/4. 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.
Tue 3/317:50 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Tue 4/76:00 am
MDW
- ATL
Nonstop2h 20m
Frontier
Deal found 3/4![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 3/3. 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 3/317:00 am
ATL
- ORD
Nonstop2h 23m
Frontier
Mon 4/64:39 pm
ORD
- ATL
Nonstop2h 26m
Frontier
Deal found 3/3![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/24:44 pm
ATL
- STL
Nonstop1h 50m
Frontier
Tue 4/711:21 am
STL
- ATL
Nonstop1h 46m
Frontier
Deal found 3/3![Frontier logo]()
$85
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/239:12 am
ATL
- ORD
Nonstop2h 11m
Multiple Airlines
Mon 4/275:50 am
ORD
- ATL
Nonstop2h 09m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$85
Best flights from Alabama to IllinoisDiscover carefully curated flight deals from Alabama to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 4, 2026.
Discover carefully curated flight deals from Alabama to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Wed 4/229:15 pm
ATL
- ORD
1 stop28h 37m
Multiple Airlines
Mon 4/279:44 pm
ORD
- ATL
1 stop9h 35m
Multiple Airlines
Deal found 2/27![Multiple Airlines logo]()
$142
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/295:24 pm
ATL
- ORD
Nonstop2h 11m
Delta
Sun 5/35:15 am
ORD
- ATL
Nonstop2h 00m
Delta
Deal found 3/1![Delta logo]()
$157
This Mytrip deal was found by Cheapflights users on 2/27. 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.
Tue 4/149:39 pm
ATL
- ORD
1 stop16h 21m
Spirit Airlines
Wed 4/157:15 pm
ORD
- ATL
2 stops24h 52m
Spirit Airlines
Deal found 2/27![Spirit Airlines logo]()
$166
This United Airlines deal was found by Cheapflights users on 3/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:59 pm
CHA
- ORD
Nonstop2h 13m
United Airlines
Sat 4/2510:30 am
ORD
- CHA
Nonstop1h 52m
United Airlines
Deal found 3/1![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/287:00 am
ATL
- STL
Nonstop1h 45m
Southwest
Sat 3/288:25 pm
STL
- ATL
Nonstop1h 35m
Southwest
Deal found 2/28![Southwest logo]()
$201
This Frontier deal was found by Cheapflights users on 2/27. 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.
Sun 3/2910:45 pm
ATL
- ORD
1 stop11h 35m
Frontier
Sun 4/55:05 am
ORD
- ATL
Nonstop2h 13m
Frontier
Deal found 2/27![Frontier logo]()
$209
This Mytrip deal was found by Cheapflights users on 2/27. 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.
Wed 4/228:37 pm
ATL
- ORD
2 stops21h 34m
Spirit Airlines
Mon 4/2712:47 pm
ORD
- ATL
1 stop7h 20m
Spirit Airlines
Deal found 2/27![Spirit Airlines logo]()
$185
This United Airlines deal was found by Cheapflights users on 3/2. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/221:59 pm
CHA
- ORD
Nonstop2h 13m
United Airlines
Mon 5/410:35 am
ORD
- CHA
Nonstop1h 50m
United Airlines
Deal found 3/2![United Airlines logo]()
$189
This Delta deal was found by Cheapflights users on 2/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/258:27 pm
ATL
- STL
Nonstop1h 39m
Delta
Tue 3/317:03 am
STL
- ATL
Nonstop1h 37m
Delta
Deal found 2/27![Delta logo]()
$201
This United Airlines deal was found by Cheapflights users on 2/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:53 am
CHA
- ORD
Nonstop2h 07m
United Airlines
Sun 3/299:15 pm
ORD
- CHA
Nonstop1h 44m
United Airlines
Deal found 2/28![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 2/28. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/147:55 am
ATL
- MDW
Nonstop1h 55m
Southwest
Sun 5/177:45 am
MDW
- ATL
Nonstop1h 55m
Southwest
Deal found 2/28![Southwest logo]()
$217
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/121:48 pm
ATL
- MDW
1 stop5h 45m
Delta
Sat 5/165:10 pm
MDW
- ATL
Nonstop2h 06m
Delta
Deal found 2/28![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 3/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/2610:53 am
CHA
- ORD
Nonstop2h 07m
United Airlines
Wed 4/19:30 pm
ORD
- CHA
Nonstop1h 53m
United Airlines
Deal found 3/1![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/711:10 am
ATL
- MDW
2 stops6h 45m
Southwest
Fri 4/107:45 am
MDW
- ATL
Nonstop1h 55m
Southwest
Deal found 3/3![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/137:30 am
ATL
- ORD
1 stop6h 31m
Delta
Sat 5/166:05 pm
ORD
- ATL
Nonstop2h 16m
Delta
Deal found 2/28![Delta logo]()
$207
This United Airlines deal was found by Cheapflights users on 2/28. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:59 pm
CHA
- ORD
Nonstop2h 13m
United Airlines
Sun 4/267:23 am
ORD
- CHA
Nonstop1h 52m
United Airlines
Deal found 2/28![United Airlines logo]()
$189
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/76:50 am
ATL
- ORD
1 stop9h 10m
Southwest
Wed 4/811:55 am
ORD
- ATL
2 stops9h 05m
Southwest
Deal found 3/3![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 2/28. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:51 pm
CHA
- ORD
1 stop5h 08m
Delta
Mon 4/277:10 am
ORD
- CHA
1 stop6h 22m
Delta
Deal found 2/28![Delta logo]()
$209
This United Airlines deal was found by Cheapflights users on 3/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/243:45 pm
ATL
- ORD
Nonstop2h 20m
United Airlines
Tue 4/76:18 pm
ORD
- ATL
Nonstop2h 10m
United Airlines
Deal found 3/1![United Airlines logo]()
$197
This Southwest deal was found by Cheapflights users on 3/3. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/169:05 am
ATL
- ORD
2 stops7h 25m
Southwest
Tue 5/191:35 pm
ORD
- ATL
1 stop6h 50m
Southwest
Deal found 3/3![Southwest logo]()
$222
This Delta deal was found by Cheapflights users on 2/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/107:59 pm
CHA
- ORD
1 stop4h 55m
Delta
Sun 4/127:10 am
ORD
- CHA
1 stop5h 59m
Delta
Deal found 2/27![Delta logo]()
$209
This Southwest deal was found by Cheapflights users on 3/1. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/243:30 pm
ATL
- MDW
Nonstop1h 55m
Southwest
Tue 4/710:05 am
MDW
- ATL
2 stops6h 40m
Southwest
Deal found 3/1![Southwest logo]()
$223
This United Airlines deal was found by Cheapflights users on 2/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/36:35 pm
HSV
- ORD
Nonstop2h 13m
United Airlines
Sun 4/54:03 pm
ORD
- HSV
Nonstop1h 55m
United Airlines
Deal found 2/27![United Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 3/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/37:30 am
CHA
- ORD
1 stop6h 09m
Delta
Thu 7/912:10 pm
ORD
- CHA
1 stop4h 04m
Delta
Deal found 3/1![Delta logo]()
$209
This Southwest deal was found by Cheapflights users on 2/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/166:50 pm
ATL
- STL
1 stop5h 35m
Southwest
Mon 4/202:15 pm
STL
- ATL
2 stops6h 25m
Southwest
Deal found 2/27![Southwest logo]()
$226
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/285:55 pm
HSV
- ORD
Nonstop2h 14m
United Airlines
Wed 4/111:19 am
ORD
- HSV
Nonstop1h 55m
United Airlines
Deal found 3/3![United Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 2/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/165:45 am
CHA
- ORD
1 stop5h 24m
Delta
Sat 4/188:15 am
ORD
- CHA
1 stop6h 32m
Delta
Deal found 2/27![Delta logo]()
$209
This Cheapflightsfares deal was found by Cheapflights users on 3/4. 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.
Fri 6/195:07 pm
PNS
- ORD
1 stop5h 20m
Spirit Airlines
Fri 6/2610:15 am
ORD
- PNS
1 stop10h 51m
Spirit Airlines
Deal found 3/4![Spirit Airlines logo]()
$363
This Southwest deal was found by Cheapflights users on 2/27. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/34:05 pm
ATL
- STL
1 stop3h 50m
Southwest
Mon 4/67:40 pm
STL
- ATL
Nonstop1h 30m
Southwest
Deal found 2/27![Southwest logo]()
$228
This United Airlines deal was found by Cheapflights users on 3/3. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/112:30 pm
HSV
- ORD
Nonstop2h 13m
United Airlines
Mon 4/137:45 pm
ORD
- HSV
Nonstop1h 52m
United Airlines
Deal found 3/3![United Airlines logo]()
$209
Last-minute flights from Alabama to IllinoisDiscover last-minute flight deals from Alabama to Illinois. Data last updated March 4, 2026 and is based on user searches.
Discover last-minute flight deals from Alabama to Illinois. Data last updated March 4, 2026 and is based on user searches.
This Frontier deal was found by Cheapflights users on 3/3. 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 3/247:00 am
ATL
- ORD
Nonstop2h 23m
Frontier
Wed 3/259:28 am
ORD
- ATL
Nonstop2h 16m
Frontier
Deal found 3/3![Frontier logo]()
$80
This Super.com deal was found by Cheapflights users on 3/1. 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 3/247:50 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Tue 3/316:00 am
MDW
- ATL
Nonstop2h 26m
Frontier
Deal found 3/1![Frontier logo]()
$86
This Cheapflightsfares deal was found by Cheapflights users on 3/4. 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.
Tue 3/317:50 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Tue 4/76:00 am
MDW
- ATL
Nonstop2h 20m
Frontier
Deal found 3/4![Frontier logo]()
$84
This Frontier deal was found by Cheapflights users on 3/3. 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 3/317:00 am
ATL
- ORD
Nonstop2h 23m
Frontier
Mon 4/64:39 pm
ORD
- ATL
Nonstop2h 26m
Frontier
Deal found 3/3![Frontier logo]()
$84
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Wed 4/19:15 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Tue 4/76:00 am
MDW
- ATL
Nonstop2h 20m
Frontier
Deal found 3/3![Frontier logo]()
$81
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/24:44 pm
ATL
- STL
Nonstop1h 50m
Frontier
Tue 4/711:21 am
STL
- ATL
Nonstop1h 46m
Frontier
Deal found 3/3![Frontier logo]()
$85
This CheapOair deal was found by Cheapflights users on 3/3. 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.
Wed 4/89:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
Sun 4/125:05 am
ORD
- ATL
Nonstop2h 13m
Frontier
Deal found 3/3![Frontier logo]()
$83
This Super.com deal was found by Cheapflights users on 3/4. 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.
Wed 4/89:15 pm
ATL
- ORD
Nonstop2h 24m
Frontier
Mon 4/134:34 pm
ORD
- ATL
Nonstop2h 26m
Frontier
Deal found 3/4![Frontier logo]()
$86
This Super.com deal was found by Cheapflights users on 3/2. 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 4/99:20 pm
ATL
- ORD
Nonstop2h 24m
Frontier
Tue 4/1411:07 am
ORD
- ATL
Nonstop2h 17m
Frontier
Deal found 3/2![Frontier logo]()
$81
This Expedia deal was found by Cheapflights users on 3/2. 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.
Thu 4/99:17 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Sat 4/116:40 am
MDW
- ATL
Nonstop2h 15m
Frontier
Deal found 3/2![Frontier logo]()
$82
This Cheapflightsfares deal was found by Cheapflights users on 3/3. 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.
Sat 4/119:47 am
ATL
- ORD
Nonstop2h 21m
Frontier
Sun 4/125:05 am
ORD
- ATL
Nonstop2h 13m
Frontier
Deal found 3/3![Frontier logo]()
$82
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 4/239:12 am
ATL
- ORD
Nonstop2h 11m
Multiple Airlines
Mon 4/275:50 am
ORD
- ATL
Nonstop2h 09m
Multiple Airlines
Deal found 2/28![Multiple Airlines logo]()
$85
One-way flights from Alabama to IllinoisSearch for one-way flight options from Alabama to Illinois. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
Search for one-way flight options from Alabama to Illinois. Find affordable one-way fares based on user searches. Data last updated March 4, 2026.
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Wed 3/189:46 am
ATL
- STL
Nonstop1h 51m
Frontier
Deal found 2/27![Frontier logo]()
$27
This Super.com deal was found by Cheapflights users on 3/3. 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.
Wed 3/119:46 am
ATL
- STL
Nonstop1h 51m
Frontier
Deal found 3/3![Frontier logo]()
$29
This Kiwi.com deal was found by Cheapflights users on 3/3. 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.
Wed 4/156:00 am
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 3/3![Frontier logo]()
$32
This Priceline deal was found by Cheapflights users on 3/4. 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 4/79:40 am
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 3/4![Frontier logo]()
$33
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/24:44 pm
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 3/3![Frontier logo]()
$39
This Frontier deal was found by Cheapflights users on 3/3. 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 3/1612:43 pm
ATL
- STL
Nonstop1h 51m
Frontier
Deal found 3/3![Frontier logo]()
$40
This Kiwi.com deal was found by Cheapflights users on 3/3. 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 4/186:00 am
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 3/3![Frontier logo]()
$45
This Priceline deal was found by Cheapflights users on 3/4. 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.
Thu 4/94:44 pm
ATL
- STL
Nonstop1h 50m
Frontier
Deal found 3/4![Frontier logo]()
$46
This Kiwi.com deal was found by Cheapflights users on 2/27. 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.
Fri 4/179:22 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Deal found 2/27![Frontier logo]()
$49
This Kiwi.com deal was found by Cheapflights users on 2/28. 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 3/179:07 am
ATL
- ORD
1 stop9h 08m
Spirit Airlines
Deal found 2/28![Spirit Airlines logo]()
$49
This Expedia deal was found by Cheapflights users on 2/28. 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.
Fri 5/159:15 pm
ATL
- MDW
Nonstop2h 04m
Frontier
Deal found 2/28![Frontier logo]()
$50
This Frontier deal was found by Cheapflights users on 3/3. 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 6/15:21 pm
ATL
- ORD
Nonstop2h 28m
Frontier
Deal found 3/3![Frontier logo]()
$50
Find flight deals from Alabama to Illinois
Keep the following information in mind while searching for Alabama to Illinois flight deals. Data was last updated March 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $80 (Cheapflightsfares) |
One-way from | $27 (Kiwi.com) |
Popular in | January |
Cheapest in | September |
Average price | $368 |
Good round-trip deal | $330 or less |
Good one-way deal | $138 or less |
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 March 4, 2026.
Use the filters below to find and compare flights from Alabama to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 4/22
9:15 pm-12:52 am
1 stop28h 37m
Chicago O'Hare Intl
Mon 4/27
9:44 pm-8:19 am
1 stop9h 35m
$142
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 4/29
5:24 pm-6:35 pm
Nonstop2h 11m
Chicago O'Hare Intl
Sun 5/3
5:15 am-8:15 am
Nonstop2h 00m
$157
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 4/14
9:39 pm-1:00 pm
1 stop16h 21m
Chicago O'Hare Intl
Wed 4/15
7:15 pm-9:07 pm
2 stops24h 52m
$166
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Wed 4/22
8:37 pm-5:11 pm
2 stops21h 34m
Chicago O'Hare Intl
Mon 4/27
12:47 pm-9:07 pm
1 stop7h 20m
$185
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 4/23
1:59 pm-3:12 pm
Nonstop2h 13m
Chicago O'Hare Intl
Sat 4/25
10:30 am-1:22 pm
Nonstop1h 52m
$189
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Wed 4/22
1:59 pm-3:12 pm
Nonstop2h 13m
Chicago O'Hare Intl
Mon 5/4
10:35 am-1:25 pm
Nonstop1h 50m
$189
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 3/26
10:53 am-12:00 pm
Nonstop2h 07m
Chicago O'Hare Intl
Sun 3/29
9:15 pm-11:59 pm
Nonstop1h 44m
$189
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 3/26
10:53 am-12:00 pm
Nonstop2h 07m
Chicago O'Hare Intl
Wed 4/1
9:30 pm-12:23 am
Nonstop1h 53m
$189
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 4/23
1:59 pm-3:12 pm
Nonstop2h 13m
Chicago O'Hare Intl
Sun 4/26
7:23 am-10:15 am
Nonstop1h 52m
$189
AtlantaChicago
ATL - ORD
ATLORD
Atlanta Hartsfield-Jackson
Tue 3/24
3:45 pm-5:05 pm
Nonstop2h 20m
Chicago O'Hare Intl
Tue 4/7
6:18 pm-9:28 pm
Nonstop2h 10m
$197
Showing 1-10 of 60 resultsSorted by cheapest first
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.
ATL-ORD
ATL-MDW
ATL-STL
CHA-ORD
HSV-ORD
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
USAL-USIL
ATL-ORD
ATL-MDW
ATL-STL
CHA-ORD
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 March 4, 2026.
One of the essential ways to save on airfare from Alabama to Illinois is to remain as flexible as possible. Flights that are in the evening tend to be the most expensive. A flight in the afternoon could potentially save you up to 29% on airfare.
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 March 4, 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.
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
Boarding
8.1
Crew
8.6
Entertainment
7.5
Comfort
8.0
Food
7.0
Overall
8.0
Reviews
1 / 20
10.0
ExcellentAnonymous,Mar 2026
KOA - HNL
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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.
Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Alabama to Illinois by cabin class
Find flights from Alabama to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Alabama and Illinois flights
Browse other Alabama and Illinois flight options. Last updated on March 4, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Find a return flight route from Illinois
Find the right flight back to Alabama after your stay in Illinois
Alabama to Illinois flights
Consider these flights traveling from Alabama to Illinois.
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 March 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$125 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$131 | Average$432 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$186 | Average$342 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$209 | Average$336 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$240 | Average$390 | FlexibilityNo cancel fee | On-time63% |