$121+ Cheap flights from Illinois to Chattanooga (CHA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — CHA
Oct 10 — Oct 171
Round-trip
1 adult, Economy
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1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Illinois to ChattanoogaExplore the most affordable flight options available from Illinois to Chattanooga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
Explore the most affordable flight options available from Illinois to Chattanooga. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Sat 10/248:04 am -
1 stop23h 35m
Thu 10/298:59 am -
1 stop7h 38m
Deal found 9/7![Multiple Airlines logo]()
$222
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 11/198:00 am -
1 stop9h 14m
Sun 11/227:00 pm -
1 stop18h 38m
Deal found 9/6![Multiple Airlines logo]()
$269
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/26:50 am -
Nonstop1h 52m
Tue 10/67:07 pm -
Nonstop2h 12m
Deal found 9/9![United Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 10/239:05 pm -
Nonstop1h 51m
Fri 10/3010:00 am -
Nonstop2h 10m
Deal found 9/6![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 10/65:40 am -
1 stop5h 08m
Tue 10/1312:36 pm -
1 stop7h 07m
Deal found 9/6![American Airlines logo]()
$281
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:05 pm -
Nonstop1h 51m
Sat 10/312:54 pm -
1 stop5h 57m
Deal found 9/5![American Airlines logo]()
$289
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/17:37 pm -
Nonstop1h 52m
Sun 10/48:07 pm -
1 stop4h 52m
Deal found 9/9![American Airlines logo]()
$290
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:37 pm -
Nonstop1h 52m
Fri 10/25:00 pm -
Nonstop2h 19m
Deal found 9/5![American Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/205:29 pm -
1 stop5h 21m
Tue 11/310:16 am -
1 stop6h 53m
Deal found 9/9![American Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:04 am -
1 stop4h 14m
Wed 10/143:09 pm -
1 stop3h 51m
Deal found 9/9![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:30 am -
1 stop6h 40m
Wed 10/147:00 pm -
1 stop5h 57m
Deal found 9/9![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/195:35 pm -
1 stop3h 33m
Sun 10/255:35 am -
1 stop4h 34m
Deal found 9/9![Delta logo]()
$299
Best flights from Illinois to ChattanoogaDiscover carefully curated flight deals from Illinois to Chattanooga that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
Discover carefully curated flight deals from Illinois to Chattanooga that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 10, 2026.
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/205:29 pm -
1 stop5h 21m
Tue 11/310:16 am -
1 stop6h 53m
Deal found 9/9![American Airlines logo]()
$299
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 12/242:35 pm -
1 stop5h 40m
Thu 12/311:58 pm -
1 stop4h 05m
Deal found 9/9![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:30 am -
1 stop6h 40m
Sun 10/115:35 am -
1 stop4h 04m
Deal found 9/9![Delta logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/162:44 pm -
1 stop23h 54m
Mon 10/193:13 pm -
1 stop20h 14m
Deal found 9/8![Allegiant Air logo]()
$300
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Sat 10/1710:30 am -
Nonstop1h 46m
Sun 10/186:00 am -
Nonstop1h 59m
Deal found 9/7![United Airlines logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:30 am -
1 stop6h 40m
Wed 10/147:00 pm -
1 stop5h 57m
Deal found 9/9![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 10/305:30 pm -
1 stop5h 26m
Mon 11/27:01 am -
2 stops11h 07m
Deal found 9/6![American Airlines logo]()
$304
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/195:35 pm -
1 stop3h 33m
Sun 10/255:35 am -
1 stop4h 34m
Deal found 9/9![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 9/2411:01 am -
1 stop4h 29m
Sun 9/276:00 am -
1 stop5h 18m
Deal found 9/5![American Airlines logo]()
$314
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:01 am -
1 stop4h 29m
Wed 9/306:00 am -
1 stop5h 18m
Deal found 9/5![American Airlines logo]()
$314
This Delta deal was found by Cheapflights users on 9/8. 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 11/121:05 pm -
1 stop5h 51m
Mon 11/166:07 pm -
1 stop5h 47m
Deal found 9/8![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 2/69:22 am -
1 stop6h 36m
Tue 2/910:41 am -
1 stop7h 12m
Deal found 9/8![United Airlines logo]()
$351
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 10/76:04 am -
1 stop4h 14m
Sun 10/116:40 am -
1 stop4h 23m
Deal found 9/6![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/228:30 am -
1 stop5h 56m
Sat 9/2612:22 pm -
1 stop5h 18m
Deal found 9/7![American Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 1/216:25 am -
1 stop5h 58m
Thu 1/286:45 am -
1 stop4h 20m
Deal found 9/9![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/6. 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.
Thu 10/11:00 pm -
1 stop6h 26m
Sun 10/46:00 am -
1 stop4h 07m
Deal found 9/6![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/8. 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.
Sat 2/66:25 am -
1 stop5h 58m
Wed 2/101:59 pm -
1 stop6h 00m
Deal found 9/8![United Airlines logo]()
$369
This American Airlines deal was found by Cheapflights users on 9/7. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:19 pm -
2 stops8h 40m
Sat 9/265:30 am -
2 stops8h 19m
Deal found 9/7![American Airlines logo]()
$339
This Delta deal was found by Cheapflights users on 9/8. 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 10/156:04 am -
1 stop4h 14m
Tue 10/208:20 am -
1 stop4h 34m
Deal found 9/8![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/6. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1810:25 am -
Nonstop1h 49m
Sat 11/215:55 pm -
Nonstop2h 10m
Deal found 9/6![United Airlines logo]()
$369
This Delta deal was found by Cheapflights users on 9/6. 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 11/176:00 am -
1 stop4h 20m
Tue 11/243:00 pm -
1 stop4h 04m
Deal found 9/6![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 10/63:30 pm -
1 stop4h 33m
Tue 10/1312:36 pm -
2 stops6h 40m
Deal found 9/6![American Airlines logo]()
$372
This Delta deal was found by Cheapflights users on 9/6. 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.
Thu 11/196:00 am -
1 stop4h 20m
Tue 11/246:00 am -
1 stop4h 42m
Deal found 9/6![Delta logo]()
$319
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Tue 9/226:05 am -
1 stop6h 11m
Sat 9/261:52 pm -
1 stop6h 09m
Deal found 9/7![United Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/266:40 am -
1 stop3h 43m
Fri 10/23:08 pm -
1 stop6h 22m
Deal found 9/5![Delta logo]()
$319
This American Airlines deal was found by Cheapflights users on 9/6. 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 11/122:34 pm -
1 stop6h 35m
Sun 11/159:51 am -
1 stop5h 07m
Deal found 9/6![American Airlines logo]()
$403
This Delta deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/265:30 am -
1 stop4h 53m
Sat 10/37:15 am -
1 stop6h 43m
Deal found 9/5![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 11/1810:32 am -
1 stop3h 48m
Wed 11/256:00 am -
1 stop5h 39m
Deal found 9/6![Delta logo]()
$319
This Delta deal was found by Cheapflights users on 9/7. 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.
Sat 9/266:05 am -
1 stop4h 18m
Wed 9/306:00 am -
1 stop4h 07m
Deal found 9/7![Delta logo]()
$334
This American Airlines deal was found by Cheapflights users on 9/8. 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.
Thu 1/214:08 pm -
1 stop5h 51m
Thu 1/286:00 am -
2 stops8h 59m
Deal found 9/8![American Airlines logo]()
$507
Last-minute flights from Illinois to ChattanoogaDiscover last-minute flight deals from Illinois to Chattanooga. Data last updated September 10, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Chattanooga. Data last updated September 10, 2026 and is based on user searches.
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:37 pm -
Nonstop1h 52m
Fri 10/25:00 pm -
Nonstop2h 19m
Deal found 9/5![American Airlines logo]()
$294
This American Airlines deal was found by Cheapflights users on 9/9. 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.
Thu 10/17:37 pm -
Nonstop1h 52m
Sun 10/48:07 pm -
1 stop4h 52m
Deal found 9/9![American Airlines logo]()
$290
This United Airlines deal was found by Cheapflights users on 9/9. 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.
Fri 10/26:50 am -
Nonstop1h 52m
Tue 10/67:07 pm -
Nonstop2h 12m
Deal found 9/9![United Airlines logo]()
$279
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Tue 10/65:40 am -
1 stop5h 08m
Tue 10/1312:36 pm -
1 stop7h 07m
Deal found 9/6![American Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:04 am -
1 stop4h 14m
Wed 10/143:09 pm -
1 stop3h 51m
Deal found 9/9![Delta logo]()
$299
This Delta deal was found by Cheapflights users on 9/9. 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 10/76:30 am -
1 stop6h 40m
Sun 10/115:35 am -
1 stop4h 04m
Deal found 9/9![Delta logo]()
$299
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 10/162:44 pm -
1 stop23h 54m
Mon 10/193:13 pm -
1 stop20h 14m
Deal found 9/8![Allegiant Air logo]()
$300
This Delta deal was found by Cheapflights users on 9/9. 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.
Mon 10/195:35 pm -
1 stop3h 33m
Sun 10/255:35 am -
1 stop4h 34m
Deal found 9/9![Delta logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/9. 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 10/205:29 pm -
1 stop5h 21m
Tue 11/310:16 am -
1 stop6h 53m
Deal found 9/9![American Airlines logo]()
$299
This American Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 10/239:05 pm -
Nonstop1h 51m
Fri 10/3010:00 am -
Nonstop2h 10m
Deal found 9/6![American Airlines logo]()
$280
This American Airlines deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/239:05 pm -
Nonstop1h 51m
Sat 10/312:54 pm -
1 stop5h 57m
Deal found 9/5![American Airlines logo]()
$289
This Kiwi.com deal was found by Cheapflights users on 9/7. 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.
Sat 10/248:04 am -
1 stop23h 35m
Thu 10/298:59 am -
1 stop7h 38m
Deal found 9/7![Multiple Airlines logo]()
$222
One-way flights from Illinois to ChattanoogaSearch for one-way flight options from Illinois to Chattanooga. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
Search for one-way flight options from Illinois to Chattanooga. Find affordable one-way fares based on user searches. Data last updated September 10, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:11 am -
1 stop24h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$121
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/78:00 am -
1 stop24h 09m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 9/9. 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.
Fri 11/136:44 pm -
2 stops37h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/9![Multiple Airlines logo]()
$127
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” 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 12/35:00 am -
1 stop13h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$140
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 12/105:00 am -
1 stop13h 11m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$153
This Kiwi.com deal was found by Cheapflights users on 9/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:15 am -
2 stops25h 04m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$162
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Sat 10/108:04 am -
1 stop23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$163
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Sat 10/37:11 am -
1 stop24h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$165
This Kiwi.com deal was found by Cheapflights users on 9/6. 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.
Sat 10/36:25 am -
2 stops25h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$174
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Wed 11/44:18 pm -
2 stops14h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$219
This Kiwi.com deal was found by Cheapflights users on 9/8. 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 9/246:25 am -
2 stops30h 24m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$243
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 11/156:16 am -
2 stops30h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$253
Find flight deals from Illinois to Chattanooga
Keep the following information in mind while searching for Illinois to Chattanooga flight deals. Data was last updated September 10, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $222 (Kiwi.com) |
One-way from | $121 (Kiwi.com) |
Popular in | August |
Cheapest in | January |
Average price | $339 |
Good round-trip deal | $289 or less |
Good one-way deal | $308 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Chattanooga that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
Use the filters below to find and compare flights from Illinois to Chattanooga that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
St. LouisChattanooga
STL Lambert-St Louis - CHA Chattanooga Lovell Field
STLCHA
Lambert-St Louis
Fri 11/13
6:44 pm-2:25 pm
3 stops42h 41m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$161
ChicagoChattanooga
MDW Chicago Midway - CHA Chattanooga Lovell Field
MDWCHA
Chicago Midway
Sat 10/3
6:25 am-8:49 am
2 stops25h 24m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$174
St. LouisChattanooga
STL Lambert-St Louis - CHA Chattanooga Lovell Field
STLCHA
Lambert-St Louis
Wed 11/4
4:18 pm-8:04 am
2 stops14h 46m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$219
ChicagoChattanooga
MDW Chicago Midway - CHA Chattanooga Lovell Field
MDWCHA
Chicago Midway
Sun 10/18
6:40 pm-2:23 pm
2 stops18h 43m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$258
ChicagoChattanooga
ORD Chicago O'Hare Intl - CHA Chattanooga Lovell Field
ORDCHA
Chicago O'Hare Intl
Fri 10/16
6:50 am-9:42 am
Nonstop1h 52m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$259
St. LouisChattanooga
STL Lambert-St Louis - CHA Chattanooga Lovell Field
STLCHA
Lambert-St Louis
Fri 10/2
8:30 am-3:26 pm
1 stop5h 56m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$264
St. LouisChattanooga
STL Lambert-St Louis - CHA Chattanooga Lovell Field
STLCHA
Lambert-St Louis
Wed 11/4
10:35 am-4:43 pm
1 stop5h 08m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$264
ChicagoChattanooga
MDW Chicago Midway - CHA Chattanooga Lovell Field
MDWCHA
Chicago Midway
Thu 10/15
9:29 am-2:29 pm
1 stop4h 00m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$269
ChicagoChattanooga
ORD Chicago O'Hare Intl - CHA Chattanooga Lovell Field
ORDCHA
Chicago O'Hare Intl
Tue 10/6
5:27 am-11:18 am
1 stop4h 51m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$269
Quickest round-trip
ChicagoChattanooga
ORD Chicago O'Hare Intl - CHA Chattanooga Lovell Field
ORDCHA
Chicago O'Hare Intl
Sat 3/6
10:30 am-1:21 pm
Nonstop1h 51m
Chattanooga Lovell Field
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$269
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Chattanooga
Have a flexible travel schedule? Discover the best time to fly to Chattanooga from Illinois with our price prediction graph.
PIA-CHA
ORD-CHA
BMI-CHA
STL-CHA
MDW-CHA
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 Illinois to Chattanooga
USIL-CHA
PIA-CHA
ORD-CHA
BMI-CHA
STL-CHA
What is the cheapest month to book a flight from Illinois to Chattanooga?
Currently, January is the cheapest month in which you can book a flight from Illinois to Chattanooga (average of $234). Flying from Illinois to Chattanooga in May is currently the most expensive (average of $347). 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 IL to CHA?
Find hourly flight availability from Illinois to Chattanooga. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 10, 2026.
It’s optimal to fly from Illinois to Chattanooga in the evening. By choosing this option you can save up to 15% on the cost of your flight, compared to a flight at noon.
Weekly flight availability from Illinois to Chattanooga
Explore weekly flight availability from Illinois to Chattanooga. 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 September 10, 2026.
The most flights from USIL to CHA are scheduled on a Tuesday (7 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (3 on average).
How much does it cost to fly round-trip from Illinois to Chattanooga?
Airfare is below average for this route at the moment.
Illinois to Chattanooga flights typically cost between $249 and $329 in October.The cheapest round-trip price found within the last 5 days was $222 on Multiple Airlines (Oct 24-Oct 29).
How far ahead should I book a flight from Illinois to Chattanooga?
The price you pay for your flight from Illinois to Chattanooga may vary depending on when you book. For the best chance of a lower fare, look to book 56 days in advance of your trip. Fares are likely to increase a fortnight or so before your departure date.
What is the cheapest day to fly from Illinois to Chattanooga?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Chattanooga. Price data was last updated on September 5, 2026.
Travelers seeking maximum savings on their Illinois to Chattanooga flight should consider departing on Monday evenings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.
Related info for your journey
Find useful and relevant information for your journey from Illinois to Chattanooga. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Chattanooga?
Book flights to Chattanooga if you plan to visit one of these locationsTrenton
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Alternative routes for Illinois to Chattanooga
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Other flights to Chattanooga
Explore flights to Chattanooga departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on September 10, 2026.
Complete your trip
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Illinois and Chattanooga flights
Browse other Illinois and Chattanooga flight options. Last updated on September 10, 2026.
Popular flight searches
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Illinois to Chattanooga flights
Consider these flights traveling from Illinois to Chattanooga.
Top 3 airlines flying from Illinois to Chattanooga
Discover the top 3 airlines that operate flights from Illinois to Chattanooga. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 7,457,451 searches. Data last updated September 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$189 | Average$327 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$199 | Average$289 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$208 | Average$278 | FlexibilityNo cancel fee | On-timeN/A |