$101+ Cheap flights from Chattanooga (CHA) 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
CHA — ORD
May 30 — Jun 61
Round-trip
1 adult, Economy
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Cheapest flights from Chattanooga to IllinoisExplore the most affordable flight options available from Chattanooga to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
Explore the most affordable flight options available from Chattanooga to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/48:59 am
CHA
- ORD
1 stop28h 38m
Multiple Airlines
Wed 6/107:52 am
ORD
- CHA
1 stop23h 17m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$177
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/118:59 am
CHA
- ORD
1 stop15h 16m
Multiple Airlines
Wed 6/177:52 am
ORD
- CHA
1 stop23h 17m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$195
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/288:57 am
CHA
- ORD
1 stop15h 18m
Multiple Airlines
Sat 5/308:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$198
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/188:59 am
CHA
- ORD
1 stop28h 44m
Multiple Airlines
Wed 7/17:52 am
ORD
- CHA
1 stop23h 17m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/188:59 am
CHA
- ORD
1 stop28h 44m
Multiple Airlines
Wed 6/245:26 pm
ORD
- CHA
1 stop13h 43m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$224
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/78:59 am
CHA
- ORD
2 stops23h 56m
Multiple Airlines
Wed 6/107:52 am
ORD
- CHA
1 stop23h 17m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$232
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/188:59 am
CHA
- ORD
1 stop16h 00m
Multiple Airlines
Sat 6/207:07 pm
ORD
- CHA
1 stop12h 02m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$233
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 7/98:59 am
CHA
- ORD
1 stop28h 26m
Multiple Airlines
Sat 7/118:05 am
ORD
- CHA
1 stop23h 04m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$238
This Delta deal was found by Cheapflights users on 4/25. 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 6/165:35 am
CHA
- MDW
1 stop5h 34m
Delta
Tue 6/239:17 am
MDW
- CHA
1 stop3h 57m
Delta
Deal found 4/25![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:11 pm
CHA
- STL
1 stop4h 33m
American Airlines
Wed 6/36:12 pm
STL
- CHA
1 stop5h 07m
American Airlines
Deal found 4/28![American Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 4/29. 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 11/158:15 am
CHA
- STL
1 stop5h 41m
Delta
Sat 11/214:40 pm
STL
- CHA
1 stop6h 11m
Delta
Deal found 4/29![Delta logo]()
$286
This Delta deal was found by Cheapflights users on 4/29. 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 6/57:56 pm
CHA
- STL
1 stop5h 03m
Delta
Tue 6/91:39 pm
STL
- CHA
1 stop6h 03m
Delta
Deal found 4/29![Delta logo]()
$300
Best flights from Chattanooga to IllinoisDiscover carefully curated flight deals from Chattanooga to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
Discover carefully curated flight deals from Chattanooga to Illinois that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 30, 2026.
This United Airlines deal was found by Cheapflights users on 4/29. 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 10/216:30 am
CHA
- ORD
Nonstop2h 07m
United Airlines
Sat 10/2410:30 am
ORD
- CHA
Nonstop1h 51m
United Airlines
Deal found 4/29![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 4/25. 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 6/167:22 pm
CHA
- MDW
1 stop3h 55m
Delta
Thu 6/2512:45 pm
MDW
- CHA
1 stop5h 47m
Delta
Deal found 4/25![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:36 pm
CHA
- PIA
1 stop6h 22m
American Airlines
Mon 5/256:13 am
PIA
- CHA
1 stop8h 20m
American Airlines
Deal found 4/27![American Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Fri 6/510:04 pm
CHA
- RFD
1 stop12h 13m
Allegiant Air
Mon 6/88:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$313
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/42:53 pm
CHA
- RFD
1 stop17h 52m
Multiple Airlines
Sun 6/711:27 am
RFD
- CHA
2 stops32h 47m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$353
This United Airlines deal was found by Cheapflights users on 4/29. 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 9/112:01 pm
CHA
- ORD
Nonstop1h 54m
United Airlines
Sun 9/137:11 am
ORD
- CHA
Nonstop1h 58m
United Airlines
Deal found 4/29![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 4/26. 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 6/207:26 am
CHA
- MDW
1 stop6h 15m
Delta
Tue 6/306:00 am
MDW
- CHA
1 stop5h 23m
Delta
Deal found 4/26![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 4/28. 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 6/46:00 am
CHA
- ORD
Nonstop2h 02m
United Airlines
Sun 6/76:45 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 4/28![United Airlines logo]()
$264
This Delta deal was found by Cheapflights users on 4/29. 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 7/47:26 am
CHA
- MDW
1 stop6h 15m
Delta
Sat 7/114:22 pm
MDW
- CHA
1 stop3h 49m
Delta
Deal found 4/29![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/148:04 pm
CHA
- PIA
1 stop4h 48m
American Airlines
Mon 5/186:23 pm
PIA
- CHA
1 stop4h 36m
American Airlines
Deal found 4/29![American Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Fri 6/1210:04 pm
CHA
- RFD
1 stop12h 13m
Allegiant Air
Mon 6/158:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$325
This Delta deal was found by Cheapflights users on 4/25. 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 6/207:26 am
CHA
- MDW
1 stop6h 15m
Delta
Tue 6/2312:45 pm
MDW
- CHA
1 stop5h 47m
Delta
Deal found 4/25![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Wed 5/135:41 pm
CHA
- ORD
Nonstop2h 19m
United Airlines
Sun 5/177:15 am
ORD
- CHA
Nonstop1h 52m
United Airlines
Deal found 4/27![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 4/25. 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 6/47:56 pm
CHA
- ORD
1 stop5h 03m
Delta
Mon 6/87:01 am
ORD
- CHA
1 stop6h 13m
Delta
Deal found 4/25![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/146:52 pm
CHA
- STL
1 stop4h 27m
American Airlines
Sun 5/175:20 am
STL
- CHA
1 stop5h 20m
American Airlines
Deal found 4/29![American Airlines logo]()
$333
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/112:53 pm
CHA
- RFD
1 stop17h 52m
Allegiant Air
Mon 6/158:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$336
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Fri 6/196:00 am
CHA
- ORD
Nonstop2h 02m
United Airlines
Sun 6/216:45 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 4/28![United Airlines logo]()
$288
This Delta deal was found by Cheapflights users on 4/26. 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 6/242:55 pm
CHA
- ORD
1 stop4h 34m
Delta
Sun 6/286:35 am
ORD
- CHA
1 stop6h 30m
Delta
Deal found 4/26![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/127:00 am
CHA
- MLI
1 stop6h 27m
American Airlines
Sat 5/163:48 pm
MLI
- CHA
1 stop6h 56m
American Airlines
Deal found 4/27![American Airlines logo]()
$339
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Fri 6/1210:04 pm
CHA
- RFD
1 stop12h 13m
Allegiant Air
Wed 6/174:42 pm
RFD
- CHA
1 stop20h 31m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$349
This Delta deal was found by Cheapflights users on 4/25. 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 8/214:30 pm
CHA
- ORD
1 stop5h 50m
Delta
Mon 8/248:55 am
ORD
- CHA
1 stop4h 38m
Delta
Deal found 4/25![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 4/25. 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 6/176:00 am
CHA
- ORD
Nonstop2h 02m
United Airlines
Sun 6/216:45 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 4/25![United Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 6/112:53 pm
CHA
- RFD
1 stop17h 52m
Allegiant Air
Wed 6/174:42 pm
RFD
- CHA
1 stop20h 31m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$360
This United Airlines deal was found by Cheapflights users on 4/25. 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 5/221:56 pm
CHA
- ORD
Nonstop2h 02m
United Airlines
Sun 5/242:30 pm
ORD
- CHA
Nonstop1h 56m
United Airlines
Deal found 4/25![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 4/29. 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 6/57:56 pm
CHA
- STL
1 stop5h 03m
Delta
Tue 6/91:39 pm
STL
- CHA
1 stop6h 03m
Delta
Deal found 4/29![Delta logo]()
$300
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/166:09 pm
CHA
- PIA
1 stop6h 43m
American Airlines
Sun 5/176:23 pm
PIA
- CHA
1 stop4h 36m
American Airlines
Deal found 4/27![American Airlines logo]()
$414
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 6/183:03 pm
CHA
- RFD
1 stop17h 42m
Allegiant Air
Mon 6/298:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 4/26![Allegiant Air logo]()
$388
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 6/186:00 am
CHA
- ORD
Nonstop2h 02m
United Airlines
Mon 6/225:50 pm
ORD
- CHA
Nonstop1h 59m
United Airlines
Deal found 4/27![United Airlines logo]()
$324
This Delta deal was found by Cheapflights users on 4/25. 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 6/176:00 am
CHA
- MDW
1 stop4h 14m
Delta
Mon 6/226:00 am
MDW
- CHA
1 stop5h 23m
Delta
Deal found 4/25![Delta logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 6/1910:04 pm
CHA
- RFD
1 stop12h 13m
Allegiant Air
Mon 6/228:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 4/25![Allegiant Air logo]()
$389
Last-minute flights from Chattanooga to IllinoisDiscover last-minute flight deals from Chattanooga to Illinois. Data last updated April 30, 2026 and is based on user searches.
Discover last-minute flight deals from Chattanooga to Illinois. Data last updated April 30, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/74:11 pm
CHA
- ORD
1 stop8h 27m
Multiple Airlines
Sat 5/308:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 5/74:11 pm
CHA
- ORD
1 stop8h 27m
Multiple Airlines
Thu 5/145:05 am
ORD
- CHA
1 stop15h 07m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$280
This United Airlines deal was found by Cheapflights users on 4/29. 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 5/76:30 am
CHA
- ORD
Nonstop2h 07m
United Airlines
Sat 5/302:26 pm
ORD
- CHA
Nonstop1h 54m
United Airlines
Deal found 4/29![United Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 5/710:02 pm
CHA
- RFD
1 stop21h 17m
Allegiant Air
Thu 5/1410:37 am
RFD
- CHA
1 stop9h 35m
Allegiant Air
Deal found 4/27![Allegiant Air logo]()
$304
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 5/78:04 pm
CHA
- ORD
1 stop4h 50m
American Airlines
Sat 5/302:34 pm
ORD
- CHA
Nonstop2h 00m
American Airlines
Deal found 4/29![American Airlines logo]()
$304
This United Airlines deal was found by Cheapflights users on 4/27. 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.
Thu 5/72:01 pm
CHA
- ORD
Nonstop2h 09m
United Airlines
Thu 5/147:15 am
ORD
- CHA
Nonstop1h 52m
United Airlines
Deal found 4/27![United Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sun 5/104:11 pm
CHA
- ORD
1 stop8h 04m
Multiple Airlines
Thu 5/145:05 am
ORD
- CHA
1 stop15h 07m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$297
This Delta deal was found by Cheapflights users on 4/29. 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 5/234:30 pm
CHA
- MDW
1 stop5h 39m
Delta
Tue 5/269:22 am
MDW
- CHA
1 stop4h 21m
Delta
Deal found 4/29![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 4/29. 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 5/234:30 pm
CHA
- MDW
1 stop5h 39m
Delta
Sun 5/246:23 am
MDW
- CHA
1 stop5h 41m
Delta
Deal found 4/29![Delta logo]()
$304
This American Airlines deal was found by Cheapflights users on 4/27. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/236:36 pm
CHA
- PIA
1 stop6h 22m
American Airlines
Mon 5/256:13 am
PIA
- CHA
1 stop8h 20m
American Airlines
Deal found 4/27![American Airlines logo]()
$309
This Delta deal was found by Cheapflights users on 4/26. 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 5/245:40 am
CHA
- STL
1 stop5h 09m
Delta
Sat 5/307:05 am
STL
- CHA
1 stop4h 59m
Delta
Deal found 4/26![Delta logo]()
$305
This American Airlines deal was found by Cheapflights users on 4/28. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:11 pm
CHA
- STL
1 stop4h 33m
American Airlines
Wed 6/36:12 pm
STL
- CHA
1 stop5h 07m
American Airlines
Deal found 4/28![American Airlines logo]()
$271
One-way flights from Chattanooga to IllinoisSearch for one-way flight options from Chattanooga to Illinois. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
Search for one-way flight options from Chattanooga to Illinois. Find affordable one-way fares based on user searches. Data last updated April 30, 2026.
This Kiwi.com deal was found by Cheapflights users on 4/28. 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 5/288:57 am
CHA
- ORD
1 stop15h 18m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$101
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Thu 6/258:59 am
CHA
- ORD
1 stop16h 00m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$120
This Kiwi.com deal was found by Cheapflights users on 4/25. 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 7/238:59 am
CHA
- ORD
1 stop16h 00m
Multiple Airlines
Deal found 4/25![Multiple Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 4/26. 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 5/218:57 am
CHA
- ORD
1 stop15h 18m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 4/30. 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 7/268:59 am
CHA
- ORD
1 stop28h 26m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$129
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 5/245:40 am
CHA
- ORD
1 stop3h 59m
Delta
Deal found 4/28![Delta logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 4/27. 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.
Sun 6/288:59 am
CHA
- ORD
2 stops24h 04m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$146
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sun 5/248:57 am
CHA
- ORD
2 stops22h 27m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$149
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/144:11 pm
CHA
- STL
2 stops33h 10m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/218:57 am
CHA
- MDW
2 stops14h 05m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$175
This Kiwi.com deal was found by Cheapflights users on 4/29. 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 5/2210:05 pm
CHA
- RFD
1 stop12h 16m
Allegiant Air
Deal found 4/29![Allegiant Air logo]()
$179
This Kiwi.com deal was found by Cheapflights users on 4/28. 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.
Sun 7/128:59 am
CHA
- MDW
2 stops30h 39m
Allegiant Air
Deal found 4/28![Allegiant Air logo]()
$188
Find flight deals from Chattanooga to Illinois
Keep the following information in mind while searching for Chattanooga to Illinois flight deals. Data was last updated April 30, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $177 (Kiwi.com) |
One-way from | $101 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $321 |
Good round-trip deal | $336 or less |
Good one-way deal | $238 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chattanooga 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 April 30, 2026.
Use the filters below to find and compare flights from Chattanooga to Illinois that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Wed 10/21
6:30 am-7:37 am
Nonstop2h 07m
Chicago O'Hare Intl
Sat 10/24
10:30 am-1:21 pm
Nonstop1h 51m
$249
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Fri 9/11
2:01 pm-2:55 pm
Nonstop1h 54m
Chicago O'Hare Intl
Sun 9/13
7:11 am-10:09 am
Nonstop1h 58m
$249
Quickest round-trip
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 6/4
6:00 am-7:02 am
Nonstop2h 02m
Chicago O'Hare Intl
Sun 6/7
6:45 am-9:34 am
Nonstop1h 49m
$264
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Tue 6/16
7:22 pm-10:17 pm
1 stop3h 55m
Chicago Midway
Thu 6/25
12:45 pm-7:32 pm
1 stop5h 47m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Sat 6/20
7:26 am-12:41 pm
1 stop6h 15m
Chicago Midway
Tue 6/30
6:00 am-12:23 pm
1 stop5h 23m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Sat 7/4
7:26 am-12:41 pm
1 stop6h 15m
Chicago Midway
Sat 7/11
4:22 pm-9:11 pm
1 stop3h 49m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Sat 6/20
7:26 am-12:41 pm
1 stop6h 15m
Chicago Midway
Tue 6/23
12:45 pm-7:32 pm
1 stop5h 47m
$269
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 6/4
7:56 pm-11:59 pm
1 stop5h 03m
Chicago O'Hare Intl
Mon 6/8
7:01 am-2:14 pm
1 stop6h 13m
$269
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Wed 6/24
2:55 pm-6:29 pm
1 stop4h 34m
Chicago O'Hare Intl
Sun 6/28
6:35 am-2:05 pm
1 stop6h 30m
$269
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Fri 8/21
4:30 pm-9:20 pm
1 stop5h 50m
Chicago O'Hare Intl
Mon 8/24
8:55 am-2:33 pm
1 stop4h 38m
$269
Showing 1-10 of 59 resultsSorted by cheapest first
Best time to book a flight from Chattanooga to Illinois
Have a flexible travel schedule? Discover the best time to fly to Illinois from Chattanooga with our price prediction graph.
CHA-ORD
CHA-MDW
CHA-STL
CHA-PIA
CHA-RFD
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 Chattanooga to Illinois
CHA-USIL
CHA-ORD
CHA-MDW
CHA-STL
CHA-PIA
How far ahead should I book a flight from Chattanooga to Illinois?
The price you pay for your flight from Chattanooga to Illinois may vary depending on when you book. For the best chance of a lower fare, look to book 53 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest month to book a flight from Chattanooga to Illinois?
Currently, March is the cheapest month in which you can book a flight from Chattanooga to Illinois (average of $139). Flying from Chattanooga to Illinois in January is currently the most expensive (average of $189). 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 CHA to IL?
Find hourly flight availability from Chattanooga 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 April 30, 2026.
When flying from Chattanooga to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Weekly flight availability from Chattanooga to Illinois
Explore weekly flight availability from Chattanooga 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 April 30, 2026.
The most flights from CHA to USIL are scheduled on a Monday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (1 on average).
How much does it cost to fly round-trip from Chattanooga to Illinois?
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 April 30, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Chattanooga to Illinois have to say. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Crew
8.5
Boarding
8.1
Food
7.2
Comfort
7.9
Entertainment
7.8
Overall
7.9
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Related info for your journey
Find useful and relevant information for your journey from Chattanooga 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 Chattanooga to Illinois
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Complete your trip
Complete your trip to Illinois by adding a car rental and/or hotel reservation to your travel itinerary.
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Chattanooga and Illinois flights
Browse other Chattanooga and Illinois flight options. Last updated on April 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Chattanooga to Illinois flights
Consider these flights traveling from Chattanooga to Illinois.
Top 3 airlines flying from Chattanooga to Illinois
Discover the top 3 airlines that operate flights from Chattanooga 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 April 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$278 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$189 | Average$356 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$311 | FlexibilityNo cancel fee | On-timeN/A |