$90+ 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 6/4. Fares are subject to change and may not be available on all flights or dates of travel.
CHA — ORD
Apr 10 — Apr 171
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 March 11, 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 March 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sat 4/251:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Wed 4/221:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/193:30 pm
CHA
- ORD
2 stops43h 10m
Multiple Airlines
Wed 4/221:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Wed 4/297:15 pm
ORD
- CHA
1 stop24h 57m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sun 4/265:05 am
ORD
- CHA
1 stop14h 25m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$202
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sat 4/187:15 pm
ORD
- CHA
1 stop24h 16m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$205
This American Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/246:45 pm
CHA
- ORD
Nonstop2h 15m
American Airlines
Sat 4/257:44 pm
ORD
- CHA
Nonstop1h 53m
American Airlines
Deal found 3/8![American Airlines logo]()
$208
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:30 am
CHA
- ORD
Nonstop2h 13m
United Airlines
Sat 4/189:30 pm
ORD
- CHA
Nonstop1h 53m
United Airlines
Deal found 3/8![United Airlines logo]()
$209
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 5/76:45 pm
CHA
- ORD
Nonstop2h 15m
American Airlines
Sat 5/97:44 pm
ORD
- CHA
Nonstop1h 53m
American Airlines
Deal found 3/6![American Airlines logo]()
$210
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sun 4/195:05 am
ORD
- CHA
1 stop14h 26m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$213
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/205:14 pm
CHA
- ORD
2 stops24h 46m
Multiple Airlines
Sat 4/251:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$215
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:10 am
CHA
- MDW
1 stop6h 33m
Delta
Sat 4/1810:41 am
MDW
- CHA
1 stop6h 03m
Delta
Deal found 3/8![Delta logo]()
$229
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 March 11, 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 March 11, 2026.
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:30 am
CHA
- ORD
Nonstop2h 13m
United Airlines
Sat 4/189:30 pm
ORD
- CHA
Nonstop1h 53m
United Airlines
Deal found 3/8![United Airlines logo]()
$209
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:10 am
CHA
- MDW
1 stop6h 33m
Delta
Sat 4/1810:41 am
MDW
- CHA
1 stop6h 03m
Delta
Deal found 3/8![Delta logo]()
$229
This American Airlines deal was found by Cheapflights users on 3/9. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/245:15 am
CHA
- STL
1 stop5h 25m
American Airlines
Sat 3/287:05 am
STL
- CHA
1 stop5h 18m
American Airlines
Deal found 3/9![American Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 3/9. 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.
Thu 4/239:20 pm
CHA
- RFD
1 stop21h 59m
Allegiant Air
Sun 4/2610:37 am
RFD
- CHA
1 stop8h 53m
Allegiant Air
Deal found 3/9![Allegiant Air logo]()
$300
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 3/272:01 pm
CHA
- ORD
Nonstop2h 17m
United Airlines
Sun 3/299:15 pm
ORD
- CHA
Nonstop1h 44m
United Airlines
Deal found 3/8![United Airlines logo]()
$224
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/217:10 am
CHA
- ORD
1 stop4h 09m
Delta
Sat 4/258:15 am
ORD
- CHA
1 stop5h 17m
Delta
Deal found 3/6![Delta logo]()
$229
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/243:00 pm
CHA
- ORD
1 stop6h 40m
Delta
Mon 4/271:36 pm
ORD
- CHA
1 stop7h 07m
Delta
Deal found 3/8![Delta logo]()
$229
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/210:50 am
CHA
- ORD
Nonstop2h 09m
United Airlines
Sun 4/57:23 am
ORD
- CHA
Nonstop1h 52m
United Airlines
Deal found 3/10![United Airlines logo]()
$229
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/253:13 pm
CHA
- ORD
1 stop4h 35m
Delta
Sun 4/267:00 am
ORD
- CHA
1 stop6h 17m
Delta
Deal found 3/8![Delta logo]()
$229
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 5/165:41 pm
CHA
- ORD
Nonstop2h 19m
United Airlines
Sun 5/242:25 pm
ORD
- CHA
Nonstop1h 56m
United Airlines
Deal found 3/10![United Airlines logo]()
$229
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/97:13 am
CHA
- STL
1 stop5h 34m
American Airlines
Sun 4/1212:27 pm
STL
- CHA
1 stop4h 47m
American Airlines
Deal found 3/10![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:20 pm
CHA
- RFD
1 stop21h 59m
Allegiant Air
Sun 4/1910:37 am
RFD
- CHA
1 stop8h 54m
Allegiant Air
Deal found 3/6![Allegiant Air logo]()
$300
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/265:45 am
CHA
- ORD
1 stop3h 52m
Delta
Mon 5/41:36 pm
ORD
- CHA
1 stop7h 07m
Delta
Deal found 3/6![Delta logo]()
$229
This American Airlines deal was found by Cheapflights users on 3/10. 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 3/276:47 pm
CHA
- STL
1 stop5h 48m
American Airlines
Sun 3/297:05 am
STL
- CHA
1 stop7h 02m
American Airlines
Deal found 3/10![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 3/9. 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 4/236:25 pm
CHA
- ORD
1 stop6h 34m
Delta
Sun 4/267:00 am
ORD
- CHA
1 stop6h 17m
Delta
Deal found 3/9![Delta logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/169:20 pm
CHA
- RFD
1 stop21h 59m
Allegiant Air
Thu 4/2310:37 am
RFD
- CHA
1 stop8h 53m
Allegiant Air
Deal found 3/10![Allegiant Air logo]()
$321
This United Airlines deal was found by Cheapflights users on 3/9. 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.
Sat 5/25:41 pm
CHA
- STL
1 stop6h 38m
United Airlines
Tue 5/57:45 am
STL
- CHA
1 stop4h 40m
United Airlines
Deal found 3/9![United Airlines logo]()
$269
This Delta deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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.
Mon 4/207:10 am
CHA
- ORD
1 stop6h 35m
Delta
Sun 4/267:00 am
ORD
- CHA
1 stop6h 17m
Delta
Deal found 3/6![Delta logo]()
$229
This Delta deal was found by Cheapflights users on 3/9. 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 4/95:50 am
CHA
- ORD
1 stop5h 09m
Delta
Sun 4/127:10 am
ORD
- CHA
1 stop5h 59m
Delta
Deal found 3/9![Delta logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 4/99:56 pm
CHA
- RFD
1 stop21h 23m
Allegiant Air
Sun 4/1910:37 am
RFD
- CHA
1 stop8h 54m
Allegiant Air
Deal found 3/10![Allegiant Air logo]()
$349
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Sat 4/45:46 pm
CHA
- STL
1 stop5h 06m
United Airlines
Tue 4/76:55 pm
STL
- CHA
1 stop4h 28m
United Airlines
Deal found 3/10![United Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 3/215:00 am
CHA
- PIA
2 stops8h 18m
American Airlines
Wed 3/251:17 pm
PIA
- CHA
2 stops8h 34m
American Airlines
Deal found 3/6![American Airlines logo]()
$355
This United Airlines deal was found by Cheapflights users on 3/10. 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 4/248:30 am
CHA
- PIA
1 stop6h 38m
United Airlines
Sun 4/265:35 pm
PIA
- CHA
1 stop5h 48m
United Airlines
Deal found 3/10![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 3/227:59 pm
CHA
- ORD
1 stop4h 55m
Delta
Sat 3/282:05 pm
ORD
- CHA
1 stop6h 29m
Delta
Deal found 3/8![Delta logo]()
$244
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/169:20 pm
CHA
- RFD
1 stop21h 59m
Allegiant Air
Wed 4/2212:09 pm
RFD
- CHA
1 stop25h 30m
Allegiant Air
Deal found 3/6![Allegiant Air logo]()
$363
This American Airlines deal was found by Cheapflights users on 3/10. 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 4/245:00 am
CHA
- PIA
2 stops8h 52m
American Airlines
Sun 4/261:22 pm
PIA
- CHA
1 stop3h 52m
American Airlines
Deal found 3/10![American Airlines logo]()
$365
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 4/238:30 am
CHA
- PIA
1 stop6h 38m
United Airlines
Sun 4/265:35 pm
PIA
- CHA
1 stop5h 48m
United Airlines
Deal found 3/10![United Airlines logo]()
$289
This Delta deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:00 pm
CHA
- MDW
1 stop3h 58m
Delta
Sun 4/199:27 am
MDW
- CHA
1 stop3h 50m
Delta
Deal found 3/7![Delta logo]()
$254
This American Airlines deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 3/217:51 am
CHA
- MLI
1 stop6h 30m
American Airlines
Wed 3/252:02 pm
MLI
- CHA
1 stop6h 49m
American Airlines
Deal found 3/6![American Airlines logo]()
$377
This United Airlines deal was found by Cheapflights users on 3/10. 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.
Thu 3/266:30 am
CHA
- PIA
1 stop4h 33m
United Airlines
Mon 3/305:25 pm
PIA
- CHA
1 stop5h 34m
United Airlines
Deal found 3/10![United Airlines logo]()
$299
Last-minute flights from Chattanooga to IllinoisDiscover last-minute flight deals from Chattanooga to Illinois. Data last updated March 11, 2026 and is based on user searches.
Discover last-minute flight deals from Chattanooga to Illinois. Data last updated March 11, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/10. 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 3/3111:46 am
CHA
- MDW
1 stop6h 36m
Delta
Tue 4/146:00 am
MDW
- CHA
1 stop4h 09m
Delta
Deal found 3/10![Delta logo]()
$249
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Wed 4/221:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$188
This Kiwi.com deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sat 4/187:15 pm
ORD
- CHA
1 stop24h 16m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$205
This United Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/168:30 am
CHA
- ORD
Nonstop2h 13m
United Airlines
Sat 4/189:30 pm
ORD
- CHA
Nonstop1h 53m
United Airlines
Deal found 3/8![United Airlines logo]()
$209
This Kiwi.com deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/163:29 pm
CHA
- ORD
1 stop19h 07m
Multiple Airlines
Sun 4/195:05 am
ORD
- CHA
1 stop14h 26m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$216
This Delta deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/167:10 am
CHA
- MDW
1 stop6h 33m
Delta
Sat 4/1810:41 am
MDW
- CHA
1 stop6h 03m
Delta
Deal found 3/8![Delta logo]()
$229
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/193:30 pm
CHA
- ORD
2 stops43h 10m
Multiple Airlines
Wed 4/221:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$191
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 4/205:14 pm
CHA
- ORD
2 stops24h 46m
Multiple Airlines
Sat 4/251:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$215
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sat 4/251:27 pm
ORD
- CHA
1 stop30h 03m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$183
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Wed 4/297:15 pm
ORD
- CHA
1 stop24h 57m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$199
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/233:29 pm
CHA
- ORD
1 stop9h 55m
Multiple Airlines
Sun 4/265:05 am
ORD
- CHA
1 stop14h 25m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$202
This American Airlines deal was found by Cheapflights users on 3/8. Clicking the “Pick Dates” 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 4/246:45 pm
CHA
- ORD
Nonstop2h 15m
American Airlines
Sat 4/257:44 pm
ORD
- CHA
Nonstop1h 53m
American Airlines
Deal found 3/8![American Airlines logo]()
$208
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 March 11, 2026.
Search for one-way flight options from Chattanooga to Illinois. Find affordable one-way fares based on user searches. Data last updated March 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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 stop7h 15m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 5/104:11 pm
CHA
- ORD
1 stop9h 13m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$99
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 5/74:11 pm
CHA
- ORD
1 stop18h 25m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$104
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 3/229:36 pm
CHA
- ORD
1 stop14h 41m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$105
This Kiwi.com deal was found by Cheapflights users on 3/6. Clicking the “Pick Dates” 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
1 stop25h 37m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 5/144:11 pm
CHA
- ORD
1 stop31h 46m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$125
This United Airlines deal was found by Cheapflights users on 3/7. Clicking the “Pick Dates” 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 5/66:30 am
CHA
- ORD
Nonstop2h 07m
United Airlines
Deal found 3/7![United Airlines logo]()
$126
This Kiwi.com deal was found by Cheapflights users on 3/10. 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 5/144:11 pm
CHA
- MDW
2 stops31h 08m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$155
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Mon 3/233:07 pm
CHA
- MDW
1 stop25h 26m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$157
This Kiwi.com deal was found by Cheapflights users on 3/10. 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.
Mon 3/233:07 pm
CHA
- STL
1 stop9h 12m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$159
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 3/229:36 pm
CHA
- MDW
2 stops42h 57m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$167
This Delta deal was found by Cheapflights users on 3/9. 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.
Wed 6/175:45 pm
CHA
- STL
1 stop4h 05m
Delta
Deal found 3/9![Delta logo]()
$176
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 March 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $183 (Kiwi.com) |
One-way from | $90 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $293 |
Good round-trip deal | $300 or less |
Good one-way deal | $228 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 March 11, 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
Thu 4/16
8:30 am-9:43 am
Nonstop2h 13m
Chicago O'Hare Intl
Sat 4/18
9:30 pm-12:23 am
Nonstop1h 53m
$209
Quickest round-trip
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Fri 3/27
2:01 pm-3:18 pm
Nonstop2h 17m
Chicago O'Hare Intl
Sun 3/29
9:15 pm-11:59 pm
Nonstop1h 44m
$224
ChattanoogaChicago
CHA - MDW
CHAMDW
Chattanooga Lovell Field
Thu 4/16
7:10 am-12:43 pm
1 stop6h 33m
Chicago Midway
Sat 4/18
10:41 am-5:44 pm
1 stop6h 03m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Tue 4/21
7:10 am-10:19 am
1 stop4h 09m
Chicago O'Hare Intl
Sat 4/25
8:15 am-2:32 pm
1 stop5h 17m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Fri 4/24
3:00 pm-8:40 pm
1 stop6h 40m
Chicago O'Hare Intl
Mon 4/27
1:36 pm-9:43 pm
1 stop7h 07m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 4/2
10:50 am-11:59 am
Nonstop2h 09m
Chicago O'Hare Intl
Sun 4/5
7:23 am-10:15 am
Nonstop1h 52m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Sat 4/25
3:13 pm-6:48 pm
1 stop4h 35m
Chicago O'Hare Intl
Sun 4/26
7:00 am-2:17 pm
1 stop6h 17m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Sat 5/16
5:41 pm-7:00 pm
Nonstop2h 19m
Chicago O'Hare Intl
Sun 5/24
2:25 pm-5:21 pm
Nonstop1h 56m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Sun 4/26
5:45 am-8:37 am
1 stop3h 52m
Chicago O'Hare Intl
Mon 5/4
1:36 pm-9:43 pm
1 stop7h 07m
$229
ChattanoogaChicago
CHA - ORD
CHAORD
Chattanooga Lovell Field
Thu 4/23
6:25 pm-11:59 pm
1 stop6h 34m
Chicago O'Hare Intl
Sun 4/26
7:00 am-2:17 pm
1 stop6h 17m
$229
Showing 1-10 of 58 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-RFD
CHA-PIA
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-RFD
What is the cheapest month to book a flight from Chattanooga to Illinois?
Currently, August is the cheapest month in which you can book a flight from Chattanooga to Illinois (average of $60). 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 March 11, 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 March 11, 2026.
The most flights from CHA to USIL are scheduled on a Monday (8 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (3 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 March 11, 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.
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
6.0
GoodJim,Nov 2025
AVL - ATL
Comfort
7.9
Boarding
8.1
Overall
7.9
Food
7.2
Crew
8.5
Entertainment
7.8
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.
Search flights from Chattanooga to Illinois by cabin class
Find flights from Chattanooga to Illinois, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Chattanooga and Illinois flights
Browse other Chattanooga and Illinois flight options. Last updated on March 11, 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 March 11, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$316 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$189 | Average$349 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$208 | Average$293 | FlexibilityNo cancel fee | On-timeN/A |