$105+ 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 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
CHA — ORD
Jul 14 — Jul 211
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 June 14, 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 June 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:59 am
CHA
- ORD
1 stop28h 16m
Multiple Airlines
Wed 8/58:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:09 am
CHA
- ORD
1 stop28h 06m
Multiple Airlines
Wed 8/58:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:57 am
CHA
- ORD
1 stop28h 18m
Multiple Airlines
Sat 8/88:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$200
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:59 am
CHA
- ORD
1 stop28h 16m
Multiple Airlines
Sat 8/18:05 am
ORD
- CHA
1 stop23h 14m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 6/10. 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 8/275:52 pm
CHA
- ORD
Nonstop2h 22m
American Airlines
Sun 8/308:55 pm
ORD
- CHA
Nonstop1h 50m
American Airlines
Deal found 6/10![American Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:08 am
CHA
- ORD
Nonstop2h 22m
American Airlines
Mon 7/68:59 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/12![American Airlines logo]()
$250
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/316:13 am
CHA
- ORD
Nonstop2h 22m
American Airlines
Tue 8/49:00 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/10![American Airlines logo]()
$253
This American Airlines deal was found by Cheapflights users on 6/11. 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 8/276:00 am
CHA
- ORD
1 stop5h 30m
American Airlines
Sat 8/298:55 pm
ORD
- CHA
Nonstop1h 50m
American Airlines
Deal found 6/11![American Airlines logo]()
$259
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/248:10 pm
CHA
- ORD
1 stop4h 51m
American Airlines
Mon 7/278:59 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/10![American Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 16m
Multiple Airlines
Wed 8/58:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 6/10. 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 7/77:20 pm
CHA
- MDW
1 stop3h 55m
Delta
Tue 7/146:00 am
MDW
- CHA
1 stop5h 22m
Delta
Deal found 6/10![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 6/10. 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 7/185:35 am
CHA
- STL
1 stop4h 31m
Delta
Wed 7/226:58 pm
STL
- CHA
1 stop3h 46m
Delta
Deal found 6/10![Delta logo]()
$271
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 June 14, 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 June 14, 2026.
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/117:07 pm
CHA
- ORD
Nonstop2h 05m
United Airlines
Sat 7/186:55 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 6/10. 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 8/143:04 pm
CHA
- MDW
1 stop4h 29m
Delta
Sun 8/166:05 am
MDW
- CHA
1 stop5h 21m
Delta
Deal found 6/10![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/184:22 pm
CHA
- STL
1 stop6h 26m
American Airlines
Wed 7/226:13 pm
STL
- CHA
1 stop4h 52m
American Airlines
Deal found 6/14![American Airlines logo]()
$271
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/39:43 pm
CHA
- RFD
1 stop12h 32m
Allegiant Air
Mon 7/68:39 am
RFD
- CHA
1 stop23h 55m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$335
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:00 am
CHA
- ORD
Nonstop1h 59m
United Airlines
Sat 7/185:50 pm
ORD
- CHA
Nonstop1h 59m
United Airlines
Deal found 6/14![United Airlines logo]()
$249
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:04 pm
CHA
- MDW
1 stop4h 29m
Delta
Wed 8/269:24 am
MDW
- CHA
1 stop3h 53m
Delta
Deal found 6/12![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/196:00 am
CHA
- ORD
Nonstop1h 59m
United Airlines
Sat 7/256:55 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/13![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/34:33 pm
CHA
- PIA
2 stops8h 49m
American Airlines
Mon 7/66:58 pm
PIA
- CHA
1 stop3h 53m
American Airlines
Deal found 6/10![American Airlines logo]()
$294
This Delta deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:20 pm
CHA
- MDW
1 stop3h 55m
Delta
Wed 7/159:19 am
MDW
- CHA
1 stop4h 00m
Delta
Deal found 6/14![Delta logo]()
$269
This Delta deal was found by Cheapflights users on 6/9. 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 8/273:04 pm
CHA
- MDW
1 stop4h 29m
Delta
Mon 8/314:39 pm
MDW
- CHA
1 stop3h 55m
Delta
Deal found 6/9![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/11:53 pm
CHA
- STL
1 stop5h 20m
United Airlines
Sat 8/155:30 pm
STL
- CHA
1 stop5h 40m
United Airlines
Deal found 6/12![United Airlines logo]()
$271
This Delta deal was found by Cheapflights users on 6/10. 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 10/96:00 am
CHA
- MDW
1 stop3h 45m
Delta
Sun 10/119:30 am
MDW
- CHA
1 stop4h 09m
Delta
Deal found 6/10![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/10. 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 6/266:00 am
CHA
- ORD
Nonstop2h 00m
United Airlines
Mon 6/296:57 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/10![United Airlines logo]()
$279
This Delta deal was found by Cheapflights users on 6/9. 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 9/256:00 am
CHA
- MDW
1 stop4h 07m
Delta
Sun 9/276:05 am
MDW
- CHA
1 stop4h 18m
Delta
Deal found 6/9![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/109:43 pm
CHA
- RFD
1 stop12h 32m
Allegiant Air
Mon 7/138:39 am
RFD
- CHA
1 stop23h 55m
Allegiant Air
Deal found 6/14![Allegiant Air logo]()
$423
This Delta deal was found by Cheapflights users on 6/10. 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 7/16:00 am
CHA
- MDW
1 stop4h 14m
Delta
Wed 7/89:19 am
MDW
- CHA
1 stop4h 00m
Delta
Deal found 6/10![Delta logo]()
$269
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/28:10 pm
CHA
- PIA
1 stop4h 47m
American Airlines
Mon 7/66:58 pm
PIA
- CHA
1 stop3h 53m
American Airlines
Deal found 6/10![American Airlines logo]()
$403
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:00 am
CHA
- ORD
Nonstop1h 59m
United Airlines
Thu 7/236:55 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/13![United Airlines logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/92:49 pm
CHA
- RFD
1 stop18h 00m
Allegiant Air
Mon 7/138:39 am
RFD
- CHA
1 stop23h 55m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$433
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:05 pm
CHA
- MDW
1 stop4h 20m
Delta
Fri 7/249:19 am
MDW
- CHA
1 stop4h 00m
Delta
Deal found 6/13![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/106:00 am
CHA
- ORD
Nonstop1h 59m
United Airlines
Sun 7/126:55 am
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/121:15 pm
CHA
- ORD
1 stop4h 36m
Delta
Sat 8/155:18 pm
ORD
- CHA
1 stop3h 52m
Delta
Deal found 6/12![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 6/2610:04 pm
CHA
- RFD
1 stop12h 13m
Allegiant Air
Mon 6/298:35 am
RFD
- CHA
1 stop24h 01m
Allegiant Air
Deal found 6/10![Allegiant Air logo]()
$467
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1010:44 am
CHA
- ORD
Nonstop2h 14m
United Airlines
Sun 9/136:59 am
ORD
- CHA
Nonstop1h 55m
United Airlines
Deal found 6/14![United Airlines logo]()
$319
This Delta deal was found by Cheapflights users on 6/10. 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 8/76:00 am
CHA
- ORD
1 stop5h 42m
Delta
Mon 8/105:30 am
ORD
- CHA
1 stop5h 56m
Delta
Deal found 6/10![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/162:49 pm
CHA
- RFD
1 stop18h 00m
Allegiant Air
Mon 7/208:39 am
RFD
- CHA
1 stop23h 55m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$475
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/212:50 pm
CHA
- ORD
1 stop6h 43m
Delta
Sat 7/257:00 am
ORD
- CHA
1 stop6h 43m
Delta
Deal found 6/13![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:45 am
CHA
- STL
1 stop5h 53m
United Airlines
Sat 10/313:15 pm
STL
- CHA
1 stop4h 34m
United Airlines
Deal found 6/12![United Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/143:04 pm
CHA
- ORD
1 stop4h 25m
Delta
Thu 8/209:54 am
ORD
- CHA
1 stop4h 29m
Delta
Deal found 6/12![Delta logo]()
$269
This United Airlines deal was found by Cheapflights users on 6/9. 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 8/256:15 am
CHA
- STL
1 stop6h 47m
United Airlines
Sat 8/296:54 pm
STL
- CHA
1 stop4h 16m
United Airlines
Deal found 6/9![United Airlines logo]()
$341
Last-minute flights from Chattanooga to IllinoisDiscover last-minute flight deals from Chattanooga to Illinois. Data last updated June 14, 2026 and is based on user searches.
Discover last-minute flight deals from Chattanooga to Illinois. Data last updated June 14, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:07 pm
CHA
- ORD
Nonstop2h 05m
United Airlines
Sat 7/42:30 pm
ORD
- CHA
Nonstop1h 49m
United Airlines
Deal found 6/12![United Airlines logo]()
$264
This American Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:08 am
CHA
- ORD
Nonstop2h 22m
American Airlines
Mon 7/68:59 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/12![American Airlines logo]()
$250
This Delta deal was found by Cheapflights users on 6/10. 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 7/77:20 pm
CHA
- MDW
1 stop3h 55m
Delta
Tue 7/146:00 am
MDW
- CHA
1 stop5h 22m
Delta
Deal found 6/10![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 16m
Multiple Airlines
Wed 8/58:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$262
This Delta deal was found by Cheapflights users on 6/10. 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 7/185:35 am
CHA
- STL
1 stop4h 31m
Delta
Tue 7/219:24 am
STL
- CHA
1 stop3h 38m
Delta
Deal found 6/10![Delta logo]()
$271
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:00 am
CHA
- ORD
Nonstop1h 59m
United Airlines
Fri 7/315:50 pm
ORD
- CHA
Nonstop1h 59m
United Airlines
Deal found 6/12![United Airlines logo]()
$249
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/248:10 pm
CHA
- ORD
1 stop4h 51m
American Airlines
Sat 8/19:49 pm
ORD
- CHA
Nonstop1h 54m
American Airlines
Deal found 6/10![American Airlines logo]()
$259
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/248:10 pm
CHA
- ORD
1 stop4h 51m
American Airlines
Mon 7/278:59 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/10![American Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:59 am
CHA
- ORD
1 stop28h 16m
Multiple Airlines
Wed 8/58:05 am
ORD
- CHA
1 stop23h 02m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$189
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/308:59 am
CHA
- ORD
1 stop28h 16m
Multiple Airlines
Sat 8/18:05 am
ORD
- CHA
1 stop23h 14m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 6/10. 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 7/316:13 am
CHA
- ORD
Nonstop2h 22m
American Airlines
Tue 8/49:00 pm
ORD
- CHA
Nonstop1h 52m
American Airlines
Deal found 6/10![American Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/319:43 pm
CHA
- MLI
1 stop11h 04m
Allegiant Air
Wed 8/53:03 pm
MLI
- CHA
1 stop22h 03m
Allegiant Air
Deal found 6/13![Allegiant Air logo]()
$283
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 June 14, 2026.
Search for one-way flight options from Chattanooga to Illinois. Find affordable one-way fares based on user searches. Data last updated June 14, 2026.
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/68:57 am
CHA
- ORD
1 stop28h 18m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:57 am
CHA
- ORD
1 stop28h 18m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$114
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/139:43 pm
CHA
- ORD
1 stop26h 27m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/132:56 pm
CHA
- RFD
1 stop17h 53m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$129
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:45 am
CHA
- ORD
1 stop6h 35m
Delta
Deal found 6/12![Delta logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 16m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$142
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/168:57 am
CHA
- MDW
2 stops31h 02m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$143
This Kiwi.com deal was found by Cheapflights users on 6/9. 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 16m
Multiple Airlines
Deal found 6/9![Multiple Airlines logo]()
$145
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/138:57 am
CHA
- MDW
2 stops31h 02m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$152
This Kiwi.com deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/162:56 pm
CHA
- RFD
1 stop17h 53m
Allegiant Air
Deal found 6/12![Allegiant Air logo]()
$153
This United Airlines deal was found by Cheapflights users on 6/11. 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.
Sun 9/610:44 am
CHA
- ORD
Nonstop2h 10m
United Airlines
Deal found 6/11![United Airlines logo]()
$160
This Kiwi.com deal was found by Cheapflights users on 6/10. 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 7/58:59 am
CHA
- ORD
1 stop28h 16m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$161
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 June 14, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $189 (Kiwi.com) |
One-way from | $105 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $334 |
Good round-trip deal | $311 or less |
Good one-way deal | $308 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 June 14, 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
Sat 7/11
7:07 pm-8:12 pm
Nonstop2h 05m
Chicago O'Hare Intl
Sat 7/18
6:55 am-9:44 am
Nonstop1h 49m
$249
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Sun 7/12
6:00 am-6:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Sat 7/18
5:50 pm-8:49 pm
Nonstop1h 59m
$249
Quickest round-trip
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Sun 7/19
6:00 am-6:59 am
Nonstop1h 59m
Chicago O'Hare Intl
Sat 7/25
6:55 am-9:44 am
Nonstop1h 49m
$249
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Fri 8/14
3:04 pm-6:33 pm
1 stop4h 29m
Chicago Midway
Sun 8/16
6:05 am-12:26 pm
1 stop5h 21m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Fri 8/14
3:04 pm-6:33 pm
1 stop4h 29m
Chicago Midway
Wed 8/26
9:24 am-2:17 pm
1 stop3h 53m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Tue 7/7
7:20 pm-10:15 pm
1 stop3h 55m
Chicago Midway
Wed 7/15
9:19 am-2:19 pm
1 stop4h 00m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Thu 8/27
3:04 pm-6:33 pm
1 stop4h 29m
Chicago Midway
Mon 8/31
4:39 pm-9:34 pm
1 stop3h 55m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Fri 10/9
6:00 am-8:45 am
1 stop3h 45m
Chicago Midway
Sun 10/11
9:30 am-2:39 pm
1 stop4h 09m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Fri 9/25
6:00 am-9:07 am
1 stop4h 07m
Chicago Midway
Sun 9/27
6:05 am-11:23 am
1 stop4h 18m
$269
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Wed 7/1
6:00 am-9:14 am
1 stop4h 14m
Chicago Midway
Wed 7/8
9:19 am-2:19 pm
1 stop4h 00m
$269
Showing 1-10 of 60 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-RFD
CHA-MDW
CHA-STL
CHA-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 Chattanooga to Illinois
CHA-USIL
CHA-ORD
CHA-RFD
CHA-MDW
CHA-STL
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 June 14, 2026.
When flying from Chattanooga to Illinois, the time of day you fly usually plays a role in the price. Save by searching for a flight in the afternoon, which can drop the price by up to 44% versus a flight in the evening.
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 June 14, 2026.
The most flights from CHA to USIL are scheduled on a Monday (5 on average). You will have fewer flight options on Wednesday, which is when the least amount of flights are scheduled (4 on average).
How much does it cost to fly round-trip from Chattanooga to Illinois?
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 36 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
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 June 14, 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.
Entertainment
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
Entertainment
7.8
Boarding
8.1
Overall
7.9
Crew
8.5
Comfort
7.8
Food
7.2
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
SEA - KOA
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 June 14, 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 June 14, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$333 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$189 | Average$290 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$306 | FlexibilityNo cancel fee | On-timeN/A |