$19+ Cheap flights from Atlanta (ATL) 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ATL — ORD
Sep 21 — Sep 281
Round-trip
1 adult, Economy
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Find cheap flights from Atlanta 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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Cheapest flights from Atlanta to IllinoisExplore the most affordable flight options available from Atlanta to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
Explore the most affordable flight options available from Atlanta to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 22, 2026.
This Super.com deal was found by Cheapflights users on 8/21. 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.
Fri 9/1812:25 pm -
Nonstop1h 45m
Mon 9/212:29 pm -
Nonstop1h 41m
Deal found 8/21![Frontier logo]()
$61
This eDestinos deal was found by Cheapflights users on 8/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:25 pm -
Nonstop1h 45m
Fri 9/182:29 pm -
Nonstop1h 41m
Deal found 8/19![Frontier logo]()
$64
This Super.com deal was found by Cheapflights users on 8/20. 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 9/1612:25 pm -
Nonstop1h 45m
Fri 9/182:29 pm -
Nonstop1h 41m
Deal found 8/20![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 11/18:50 am -
Nonstop1h 50m
Sun 11/810:35 am -
Nonstop1h 40m
Deal found 8/18![Frontier logo]()
$67
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 11/38:50 am -
Nonstop1h 50m
Mon 11/910:35 am -
Nonstop1h 40m
Deal found 8/18![Frontier logo]()
$68
This Kiwi.com deal was found by Cheapflights users on 8/18. 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.
Mon 11/28:50 am -
Nonstop1h 50m
Wed 11/1110:35 am -
Nonstop1h 40m
Deal found 8/18![Frontier logo]()
$72
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 11/38:50 am -
Nonstop1h 50m
Sun 11/810:35 am -
Nonstop1h 40m
Deal found 8/18![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 8/20. 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.
Fri 9/1112:25 pm -
Nonstop1h 45m
Wed 9/162:29 pm -
Nonstop1h 41m
Deal found 8/20![Frontier logo]()
$75
This Frontier deal was found by Cheapflights users on 8/18. 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 11/118:50 am -
Nonstop1h 50m
Thu 11/1910:35 am -
Nonstop1h 40m
Deal found 8/18![Frontier logo]()
$76
This Frontier deal was found by Cheapflights users on 8/18. 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 10/212:25 pm -
Nonstop1h 45m
Fri 10/96:35 pm -
Nonstop1h 59m
Deal found 8/18![Frontier logo]()
$77
This Frontier deal was found by Cheapflights users on 8/19. 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 10/308:50 am -
Nonstop1h 50m
Mon 11/210:35 am -
Nonstop1h 40m
Deal found 8/19![Frontier logo]()
$83
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 10/75:02 pm -
Nonstop2h 21m
Sun 10/1110:26 am -
Nonstop2h 08m
Deal found 8/18![Frontier logo]()
$138
Best flights from Atlanta to IllinoisDiscover carefully curated flight deals from Atlanta to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
Discover carefully curated flight deals from Atlanta to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 22, 2026.
This Delta deal was found by Cheapflights users on 8/22. 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.
Sat 9/193:50 pm -
Nonstop1h 42m
Sat 9/263:54 pm -
Nonstop1h 37m
Deal found 8/22![Delta logo]()
$117
This Southwest deal was found by Cheapflights users on 8/20. 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 10/248:40 am -
Nonstop1h 40m
Sun 11/11:20 pm -
1 stop5h 00m
Deal found 8/20![Southwest logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 10/228:59 pm -
1 stop23h 07m
Sun 10/2510:20 am -
1 stop12h 46m
Deal found 8/18![Multiple Airlines logo]()
$176
This Delta deal was found by Cheapflights users on 8/21. 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 9/225:00 pm -
Nonstop1h 40m
Sat 9/265:46 pm -
Nonstop1h 43m
Deal found 8/21![Delta logo]()
$117
This United Airlines deal was found by Cheapflights users on 8/21. 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 10/88:00 am -
Nonstop2h 20m
Mon 10/1211:59 am -
Nonstop2h 06m
Deal found 8/21![United Airlines logo]()
$263
This Southwest deal was found by Cheapflights users on 8/21. 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 9/257:15 pm -
Nonstop1h 40m
Mon 9/283:15 pm -
Nonstop1h 35m
Deal found 8/21![Southwest logo]()
$137
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3012:53 pm -
1 stop6h 38m
Sun 11/14:39 pm -
1 stop6h 16m
Deal found 8/17![American Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 8/19. 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 9/2511:01 pm -
Nonstop1h 41m
Sun 9/276:00 am -
Nonstop1h 35m
Deal found 8/19![Delta logo]()
$137
This JetBlue deal was found by Cheapflights users on 8/18. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:40 pm -
1 stop7h 21m
Wed 9/1610:59 am -
1 stop5h 47m
Deal found 8/18![JetBlue logo]()
$311
This Southwest deal was found by Cheapflights users on 8/22. 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 9/172:40 pm -
Nonstop1h 40m
Mon 9/213:45 pm -
1 stop4h 45m
Deal found 8/22![Southwest logo]()
$147
This Delta deal was found by Cheapflights users on 8/20. 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.
Sun 10/48:20 am -
Nonstop1h 40m
Sun 10/117:20 pm -
Nonstop1h 40m
Deal found 8/20![Delta logo]()
$137
This Delta deal was found by Cheapflights users on 8/20. 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 9/107:19 pm -
Nonstop1h 39m
Mon 9/146:54 pm -
Nonstop1h 41m
Deal found 8/20![Delta logo]()
$137
This Delta deal was found by Cheapflights users on 8/18. 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 11/68:35 am -
Nonstop1h 42m
Fri 11/65:38 pm -
Nonstop1h 39m
Deal found 8/18![Delta logo]()
$137
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/309:00 pm -
1 stop12h 40m
Sun 10/49:36 pm -
1 stop30h 24m
Deal found 8/19![Multiple Airlines logo]()
$247
This United Airlines deal was found by Cheapflights users on 8/20. 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 9/57:04 pm -
Nonstop2h 24m
Tue 9/87:00 am -
Nonstop2h 12m
Deal found 8/20![United Airlines logo]()
$306
This American Airlines deal was found by Cheapflights users on 8/21. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/38:12 pm -
1 stop4h 53m
Tue 10/65:03 pm -
1 stop4h 17m
Deal found 8/21![American Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/310:25 pm -
1 stop11h 53m
Sun 10/49:36 pm -
2 stops12h 54m
Deal found 8/19![Multiple Airlines logo]()
$291
This Southwest deal was found by Cheapflights users on 8/22. 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.
Wed 9/231:20 pm -
1 stop6h 25m
Wed 9/307:45 pm -
Nonstop1h 55m
Deal found 8/22![Southwest logo]()
$269
This United Airlines deal was found by Cheapflights users on 8/20. 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 10/306:36 pm -
1 stop5h 37m
Tue 11/38:15 am -
1 stop4h 20m
Deal found 8/20![United Airlines logo]()
$319
This Southwest deal was found by Cheapflights users on 8/19. 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.
Wed 9/232:35 pm -
Nonstop1h 50m
Mon 9/287:55 am -
2 stops5h 50m
Deal found 8/19![Southwest logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/310:25 pm -
1 stop11h 53m
Mon 10/510:44 am -
2 stops9h 47m
Deal found 8/19![Multiple Airlines logo]()
$300
This American Airlines deal was found by Cheapflights users on 8/17. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 pm -
1 stop4h 59m
Sun 9/66:00 am -
1 stop4h 25m
Deal found 8/17![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 8/18. 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 10/67:05 am -
2 stops6h 00m
Thu 10/88:55 pm -
Nonstop1h 55m
Deal found 8/18![Southwest logo]()
$270
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 10/249:00 pm -
1 stop13h 30m
Sun 10/258:53 pm -
2 stops14h 07m
Deal found 8/20![Multiple Airlines logo]()
$302
This Delta deal was found by Cheapflights users on 8/17. 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.
Sat 10/3110:00 am -
Nonstop1h 32m
Sun 11/16:08 am -
Nonstop1h 31m
Deal found 8/17![Delta logo]()
$259
This United Airlines deal was found by Cheapflights users on 8/18. 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 9/210:05 am -
1 stop5h 55m
Sun 9/63:35 pm -
1 stop4h 35m
Deal found 8/18![United Airlines logo]()
$349
This American Airlines deal was found by Cheapflights users on 8/20. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 pm -
1 stop4h 59m
Tue 9/84:24 pm -
1 stop5h 46m
Deal found 8/20![American Airlines logo]()
$349
This Southwest deal was found by Cheapflights users on 8/21. 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 9/2611:50 am -
2 stops6h 20m
Mon 9/285:30 am -
Nonstop1h 45m
Deal found 8/21![Southwest logo]()
$274
This Delta deal was found by Cheapflights users on 8/17. 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 10/3012:44 pm -
Nonstop1h 26m
Sun 11/15:00 pm -
Nonstop1h 30m
Deal found 8/17![Delta logo]()
$259
This American Airlines deal was found by Cheapflights users on 8/18. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/210:21 am -
1 stop6h 52m
Sun 9/66:00 am -
2 stops8h 28m
Deal found 8/18![American Airlines logo]()
$354
Last-minute flights from Atlanta to IllinoisDiscover last-minute flight deals from Atlanta to Illinois. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Atlanta to Illinois. Data last updated August 22, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/912:25 pm -
Nonstop1h 45m
Mon 9/142:29 pm -
Nonstop1h 41m
Deal found 8/22![Frontier logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/910:35 am -
Nonstop2h 16m
Thu 9/177:28 pm -
Nonstop2h 16m
Deal found 8/18![Frontier logo]()
$138
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 9/106:30 am -
1 stop12h 24m
Mon 9/142:29 pm -
Nonstop1h 41m
Deal found 8/18![Frontier logo]()
$92
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/108:00 am -
Nonstop2h 20m
Thu 9/177:28 pm -
Nonstop2h 16m
Deal found 8/18![Frontier logo]()
$140
This eDestinos deal was found by Cheapflights users on 8/19. 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 eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:25 pm -
Nonstop1h 45m
Fri 9/182:29 pm -
Nonstop1h 41m
Deal found 8/19![Frontier logo]()
$64
This Kiwi.com deal was found by Cheapflights users on 8/22. 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 9/1112:25 pm -
Nonstop1h 45m
Mon 9/142:29 pm -
Nonstop1h 41m
Deal found 8/22![Frontier logo]()
$73
This Super.com deal was found by Cheapflights users on 8/20. 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.
Fri 9/1112:25 pm -
Nonstop1h 45m
Wed 9/162:29 pm -
Nonstop1h 41m
Deal found 8/20![Frontier logo]()
$75
This Super.com deal was found by Cheapflights users on 8/20. 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 9/1612:25 pm -
Nonstop1h 45m
Fri 9/182:29 pm -
Nonstop1h 41m
Deal found 8/20![Frontier logo]()
$65
This Kiwi.com deal was found by Cheapflights users on 8/18. 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 9/1612:25 pm -
Nonstop1h 45m
Mon 9/212:29 pm -
Nonstop1h 41m
Deal found 8/18![Frontier logo]()
$72
This Super.com deal was found by Cheapflights users on 8/21. 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.
Fri 9/1812:25 pm -
Nonstop1h 45m
Mon 9/212:29 pm -
Nonstop1h 41m
Deal found 8/21![Frontier logo]()
$61
This Travelocity deal was found by Cheapflights users on 8/22. 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 Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:25 pm -
Nonstop1h 45m
Thu 10/84:30 pm -
1 stop23h 14m
Deal found 8/22![Frontier logo]()
$88
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 9/307:30 pm -
1 stop17h 10m
Mon 10/56:20 am -
1 stop29h 08m
Deal found 8/19![Frontier logo]()
$139
One-way flights from Atlanta to IllinoisSearch for one-way flight options from Atlanta to Illinois. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
Search for one-way flight options from Atlanta to Illinois. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This Super.com deal was found by Cheapflights users on 8/21. 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 9/1612:25 pm -
Nonstop1h 45m
Deal found 8/21![Frontier logo]()
$19
This Super.com deal was found by Cheapflights users on 8/18. 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.
Mon 9/2812:25 pm -
Nonstop1h 45m
Deal found 8/18![Frontier logo]()
$23
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 9/2512:25 pm -
Nonstop1h 45m
Deal found 8/18![Frontier logo]()
$28
This Super.com deal was found by Cheapflights users on 8/21. 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.
Fri 10/94:51 pm -
Nonstop1h 49m
Deal found 8/21![Frontier logo]()
$29
This Kiwi.com deal was found by Cheapflights users on 8/20. 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.
Mon 9/2112:25 pm -
Nonstop1h 45m
Deal found 8/20![Frontier logo]()
$32
This Kiwi.com deal was found by Cheapflights users on 8/19. 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 10/164:51 pm -
Nonstop1h 49m
Deal found 8/19![Frontier logo]()
$37
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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 9/2312:25 pm -
Nonstop1h 45m
Deal found 8/18![Frontier logo]()
$38
This Frontier deal was found by Cheapflights users on 8/19. 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 10/194:51 pm -
Nonstop1h 49m
Deal found 8/19![Frontier logo]()
$45
This Super.com deal was found by Cheapflights users on 8/22. 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 9/912:25 pm -
Nonstop1h 45m
Deal found 8/22![Frontier logo]()
$54
This Cheapflightsfares deal was found by Cheapflights users on 8/18. 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.
Mon 10/264:51 pm -
Nonstop1h 49m
Deal found 8/18![Frontier logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 8/20. 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 11/197:40 am -
Nonstop2h 16m
Deal found 8/20![Frontier logo]()
$69
This Cheapflightsfares deal was found by Cheapflights users on 8/17. 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 10/299:59 am -
Nonstop1h 59m
Deal found 8/17![Frontier logo]()
$70
Find flight deals from Atlanta to Illinois
Keep the following information in mind while searching for Atlanta to Illinois flight deals. Data was last updated August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $61 (Super.com) |
One-way from | $19 (Super.com) |
Popular in | June |
Cheapest in | February |
Average price | $234 |
Good round-trip deal | $199 or less |
Good one-way deal | $129 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Atlanta 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 7,457,451 searches. Data last updated August 22, 2026.
Use the filters below to find and compare flights from Atlanta to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Sat 9/19
3:50 pm-4:32 pm
Nonstop1h 42m
Lambert-St Louis
Sat 9/26
3:54 pm-6:31 pm
Nonstop1h 37m
$117
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Tue 9/22
5:00 pm-5:40 pm
Nonstop1h 40m
Lambert-St Louis
Sat 9/26
5:46 pm-8:29 pm
Nonstop1h 43m
$117
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Sat 10/24
8:40 am-9:20 am
Nonstop1h 40m
Lambert-St Louis
Sun 11/1
1:20 pm-7:20 pm
1 stop5h 00m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Fri 9/25
7:15 pm-7:55 pm
Nonstop1h 40m
Lambert-St Louis
Mon 9/28
3:15 pm-5:50 pm
Nonstop1h 35m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Fri 9/25
11:01 pm-11:42 pm
Nonstop1h 41m
Lambert-St Louis
Sun 9/27
6:00 am-8:35 am
Nonstop1h 35m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Sun 10/4
8:20 am-9:00 am
Nonstop1h 40m
Lambert-St Louis
Sun 10/11
7:20 pm-10:00 pm
Nonstop1h 40m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Thu 9/10
7:19 pm-7:58 pm
Nonstop1h 39m
Lambert-St Louis
Mon 9/14
6:54 pm-9:35 pm
Nonstop1h 41m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Fri 11/6
8:35 am-9:17 am
Nonstop1h 42m
Lambert-St Louis
Fri 11/6
5:38 pm-8:17 pm
Nonstop1h 39m
$137
AtlantaSt. Louis
ATL Atlanta Hartsfield-Jackson - STL Lambert-St Louis
ATLSTL
Atlanta Hartsfield-Jackson
Thu 9/17
2:40 pm-3:20 pm
Nonstop1h 40m
Lambert-St Louis
Mon 9/21
3:45 pm-9:30 pm
1 stop4h 45m
$147
AtlantaChicago
ATL Atlanta Hartsfield-Jackson - RFD Chicago Greater Rockford
ATLRFD
Atlanta Hartsfield-Jackson
Thu 10/22
8:59 pm-7:06 pm
1 stop23h 07m
Chicago Greater Rockford
Sun 10/25
10:20 am-12:06 am
1 stop12h 46m
$176
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Atlanta to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Atlanta with our price prediction graph.
ATL-STL
ATL-ORD
ATL-RFD
ATL-EVV
ATL-MLI
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 Atlanta to Illinois
ATL-USIL
ATL-STL
ATL-ORD
ATL-RFD
ATL-EVV
What is the cheapest month to book a flight from Atlanta to Illinois?
Currently, February is the cheapest month in which you can book a flight from Atlanta to Illinois (average of $160). Flying from Atlanta to Illinois in June is currently the most expensive (average of $286). 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 ATL to IL?
Find hourly flight availability from Atlanta 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 August 22, 2026.
Unlike in the evening, when flights are generally more expensive, you can save up to 14% on flights from Atlanta to Illinois by exploring options for tickets in the morning.
Weekly flight availability from Atlanta to Illinois
Explore weekly flight availability from Atlanta 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 August 22, 2026.
The most flights from ATL to USIL are scheduled on a Friday (98 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (17 on average).
How much does it cost to fly round-trip from Atlanta to Illinois?
Airfare is below average for this route at the moment.
Atlanta to Illinois flights typically cost between $161 and $310 in October.The cheapest round-trip price found within the last 5 days was $138 on Frontier (Oct 7-Oct 11).
How far ahead should I book a flight from Atlanta to Illinois?
To ensure you get the cheapest price possible for a flight from Atlanta to Illinois, you should look to book at least 49 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest day to fly from Atlanta to Illinois?
Use this chart to determine the cheapest time to fly round-trip from Atlanta to Illinois. Price data was last updated on August 22, 2026.
Travelers seeking maximum savings on their Atlanta to Illinois flight should consider departing on Saturday evenings when fares are most often at their lowest. Monday at noon flights should be avoided if possible as fares are typically the most expensive at this time.
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 August 22, 2026.
Read reviews from past customers who have flown Southwest,Delta, andUnited Airlines from Atlanta to Illinois. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Crew
8.6
Entertainment
7.5
Comfort
8.0
Boarding
8.1
Food
7.0
Overall
8.0
Reviews
1 / 20
6.0
GoodReza,Jun 2026
TPA - MDW
Related info for your journey
Find useful and relevant information for your journey from Atlanta 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 Atlanta 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 Atlanta to Illinois by cabin class
Find flights from Atlanta to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Atlanta and Illinois flights
Browse other Atlanta and Illinois flight options. Last updated on August 22, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Atlanta to Illinois flights
Consider these flights traveling from Atlanta to Illinois.
Top 5 airlines flying from Atlanta to Illinois
Discover the top 5 airlines that operate flights from Atlanta 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$59 | Average$178 | FlexibilityNo cancel fee | On-time62% | |
| Cheapest$104 | Average$384 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$151 | Average$346 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$158 | Average$435 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$167 | Average$331 | FlexibilityNo cancel fee | On-time63% |