$47+ Cheap flights from Illinois to Knoxville (TYS)
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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TYS
Nov 12 — Nov 191
Round-trip
1 adult, Economy
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Find cheap flights from Illinois to Knoxville with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Illinois to Knoxville
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Cheapest flights from Illinois to KnoxvilleExplore the most affordable flight options available from Illinois to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
Explore the most affordable flight options available from Illinois to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on October 13, 2026.
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Mon 11/28:55 pm -
Nonstop1h 52m
Sat 11/711:33 am -
Nonstop2h 07m
Deal found 10/10![American Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 10/10. 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.
Sat 12/127:32 pm -
2 stops23h 59m
Thu 1/149:45 am -
1 stop7h 29m
Deal found 10/10![Multiple Airlines logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/133:16 pm -
Nonstop1h 30m
Thu 11/196:30 am -
2 stops18h 17m
Deal found 10/8![Multiple Airlines logo]()
$254
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 11/1312:59 pm -
1 stop7h 41m
Mon 11/168:52 pm -
Nonstop2h 06m
Deal found 10/9![American Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/166:42 pm -
2 stops21h 36m
Mon 11/238:00 am -
Nonstop1h 39m
Deal found 10/10![Multiple Airlines logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Mon 11/94:31 pm -
Nonstop1h 30m
Mon 11/1610:09 pm -
3 stops44h 38m
Deal found 10/11![Multiple Airlines logo]()
$257
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 11/71:22 pm -
1 stop4h 24m
Tue 11/107:52 am -
Nonstop2h 18m
Deal found 10/9![American Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Fri 10/302:26 pm -
Nonstop1h 25m
Sun 11/17:00 am -
2 stops35h 47m
Deal found 10/11![Multiple Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Mon 11/21:26 pm -
Nonstop1h 25m
Fri 11/131:17 pm -
2 stops11h 30m
Deal found 10/12![Multiple Airlines logo]()
$260
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Mon 11/166:08 am -
3 stops29h 27m
Fri 11/201:01 pm -
Nonstop1h 39m
Deal found 10/9![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/133:16 pm -
Nonstop1h 30m
Sat 11/212:50 pm -
1 stop27h 17m
Deal found 10/8![Allegiant Air logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/133:16 pm -
Nonstop1h 30m
Mon 11/168:30 am -
2 stops10h 17m
Deal found 10/10![Multiple Airlines logo]()
$263
Best flights from Illinois to KnoxvilleDiscover carefully curated flight deals from Illinois to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
Discover carefully curated flight deals from Illinois to Knoxville that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated October 13, 2026.
This Delta deal was found by Cheapflights users on 10/10. 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 11/132:44 pm -
1 stop5h 45m
Mon 11/1611:43 am -
1 stop5h 35m
Deal found 10/10![Delta logo]()
$265
This Southwest deal was found by Cheapflights users on 10/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/38:50 am -
2 stops9h 55m
Fri 11/67:25 pm -
1 stop5h 45m
Deal found 10/12![Southwest logo]()
$278
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Mon 10/265:33 pm -
1 stop22h 41m
Fri 10/305:41 pm -
1 stop17h 08m
Deal found 10/11![Allegiant Air logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 10/291:12 pm -
2 stops27h 25m
Thu 11/57:00 am -
1 stop26h 38m
Deal found 10/9![Multiple Airlines logo]()
$367
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 10/2411:21 am -
1 stop5h 59m
Wed 10/286:06 pm -
1 stop4h 55m
Deal found 10/9![American Airlines logo]()
$369
This United Airlines deal was found by Cheapflights users on 10/12. 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 12/1910:35 am -
1 stop5h 40m
Wed 12/236:04 am -
1 stop4h 56m
Deal found 10/12![United Airlines logo]()
$400
This Delta deal was found by Cheapflights users on 10/12. 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.
Tue 11/106:49 am -
1 stop6h 06m
Tue 11/1711:43 am -
1 stop5h 35m
Deal found 10/12![Delta logo]()
$269
This Southwest deal was found by Cheapflights users on 10/12. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1211:10 am -
2 stops8h 25m
Sat 11/147:10 am -
2 stops8h 40m
Deal found 10/12![Southwest logo]()
$281
This Delta deal was found by Cheapflights users on 10/12. 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 11/46:04 am -
1 stop3h 41m
Wed 11/115:40 am -
1 stop5h 44m
Deal found 10/12![Delta logo]()
$269
This Kiwi.com deal was found by Cheapflights users on 10/12. 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 11/129:30 am -
1 stop12h 07m
Sat 11/143:57 pm -
1 stop18h 43m
Deal found 10/12![Allegiant Air logo]()
$328
This Delta deal was found by Cheapflights users on 10/12. 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.
Mon 11/28:05 am -
1 stop4h 26m
Mon 11/94:00 pm -
1 stop5h 49m
Deal found 10/12![Delta logo]()
$273
This Delta deal was found by Cheapflights users on 10/10. 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 11/135:13 pm -
1 stop5h 46m
Mon 11/167:22 pm -
1 stop4h 46m
Deal found 10/10![Delta logo]()
$281
This American Airlines deal was found by Cheapflights users on 10/12. 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.
Thu 12/245:00 am -
2 stops8h 36m
Mon 12/288:48 pm -
1 stop4h 28m
Deal found 10/12![American Airlines logo]()
$380
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 10/258:08 pm -
1 stop24h 36m
Thu 10/299:11 pm -
1 stop11h 53m
Deal found 10/10![Allegiant Air logo]()
$347
This Southwest deal was found by Cheapflights users on 10/9. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2410:25 am -
2 stops6h 30m
Wed 10/284:20 pm -
1 stop7h 55m
Deal found 10/9![Southwest logo]()
$354
This United Airlines deal was found by Cheapflights users on 10/12. 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 11/205:59 pm -
Nonstop1h 55m
Mon 11/236:45 am -
Nonstop2h 09m
Deal found 10/12![United Airlines logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Mon 11/1610:38 am -
1 stop8h 21m
Fri 11/206:01 pm -
1 stop17h 40m
Deal found 10/9![Allegiant Air logo]()
$347
This Delta deal was found by Cheapflights users on 10/8. 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 12/311:39 am -
1 stop5h 43m
Sun 12/65:40 am -
1 stop4h 09m
Deal found 10/8![Delta logo]()
$292
This Southwest deal was found by Cheapflights users on 10/11. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/262:45 pm -
2 stops7h 00m
Thu 10/298:20 am -
2 stops6h 05m
Deal found 10/11![Southwest logo]()
$359
This American Airlines deal was found by Cheapflights users on 10/10. 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 12/1711:23 am -
1 stop5h 54m
Mon 12/216:00 am -
1 stop5h 53m
Deal found 10/10![American Airlines logo]()
$397
This United Airlines deal was found by Cheapflights users on 10/10. 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.
Wed 12/22:36 pm -
1 stop5h 11m
Sat 12/56:25 am -
1 stop4h 45m
Deal found 10/10![United Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 10/291:12 pm -
2 stops27h 25m
Mon 11/24:41 pm -
1 stop21h 11m
Deal found 10/8![Multiple Airlines logo]()
$457
This Delta deal was found by Cheapflights users on 10/11. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/45:30 am -
1 stop4h 57m
Sun 12/66:17 pm -
1 stop6h 39m
Deal found 10/11![Delta logo]()
$292
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/2012:50 pm -
2 stops7h 50m
Thu 12/241:00 pm -
1 stop7h 30m
Deal found 10/8![Southwest logo]()
$365
This United Airlines deal was found by Cheapflights users on 10/9. 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 1/95:00 am -
1 stop4h 10m
Wed 1/131:55 pm -
1 stop5h 04m
Deal found 10/9![United Airlines logo]()
$409
This American Airlines deal was found by Cheapflights users on 10/12. 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 12/255:00 am -
2 stops10h 16m
Thu 12/318:48 pm -
1 stop4h 28m
Deal found 10/12![American Airlines logo]()
$413
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 10/299:40 am -
1 stop11h 44m
Mon 11/24:41 pm -
1 stop21h 11m
Deal found 10/8![Allegiant Air logo]()
$385
This Delta deal was found by Cheapflights users on 10/12. 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 12/25:05 pm -
1 stop3h 28m
Sun 12/65:40 am -
1 stop5h 45m
Deal found 10/12![Delta logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Tue 11/31:42 pm -
1 stop28h 29m
Fri 11/66:56 pm -
1 stop17h 58m
Deal found 10/12![Allegiant Air logo]()
$391
This Delta deal was found by Cheapflights users on 10/10. 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.
Mon 11/165:13 pm -
1 stop3h 43m
Sat 11/217:10 am -
1 stop6h 41m
Deal found 10/10![Delta logo]()
$307
Last-minute flights from Illinois to KnoxvilleDiscover last-minute flight deals from Illinois to Knoxville. Data last updated October 13, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Knoxville. Data last updated October 13, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Fri 10/302:26 pm -
Nonstop1h 25m
Sun 11/17:00 am -
2 stops35h 47m
Deal found 10/11![Multiple Airlines logo]()
$259
This American Airlines deal was found by Cheapflights users on 10/10. 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.
Mon 11/28:55 pm -
Nonstop1h 52m
Sat 11/711:33 am -
Nonstop2h 07m
Deal found 10/10![American Airlines logo]()
$253
This Kiwi.com deal was found by Cheapflights users on 10/12. 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.
Mon 11/21:26 pm -
Nonstop1h 25m
Fri 11/131:17 pm -
2 stops11h 30m
Deal found 10/12![Multiple Airlines logo]()
$260
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Sat 11/71:22 pm -
1 stop4h 24m
Tue 11/107:52 am -
Nonstop2h 18m
Deal found 10/9![American Airlines logo]()
$259
This Kiwi.com deal was found by Cheapflights users on 10/11. 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.
Mon 11/94:31 pm -
Nonstop1h 30m
Mon 11/1610:09 pm -
3 stops44h 38m
Deal found 10/11![Multiple Airlines logo]()
$257
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/133:16 pm -
Nonstop1h 30m
Thu 11/196:30 am -
2 stops18h 17m
Deal found 10/8![Multiple Airlines logo]()
$254
This American Airlines deal was found by Cheapflights users on 10/9. 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.
Fri 11/1312:59 pm -
1 stop7h 41m
Mon 11/168:52 pm -
Nonstop2h 06m
Deal found 10/9![American Airlines logo]()
$255
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 11/133:16 pm -
Nonstop1h 30m
Sat 11/212:50 pm -
1 stop27h 17m
Deal found 10/8![Allegiant Air logo]()
$262
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/133:16 pm -
Nonstop1h 30m
Mon 11/168:30 am -
2 stops10h 17m
Deal found 10/10![Multiple Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 10/12. 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 11/133:59 pm -
1 stop4h 57m
Mon 11/167:22 pm -
1 stop5h 32m
Deal found 10/12![Delta logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 10/10. 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 11/166:42 pm -
2 stops21h 36m
Mon 11/238:00 am -
Nonstop1h 39m
Deal found 10/10![Multiple Airlines logo]()
$256
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Mon 11/166:08 am -
3 stops29h 27m
Fri 11/201:01 pm -
Nonstop1h 39m
Deal found 10/9![Multiple Airlines logo]()
$261
One-way flights from Illinois to KnoxvilleSearch for one-way flight options from Illinois to Knoxville. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
Search for one-way flight options from Illinois to Knoxville. Find affordable one-way fares based on user searches. Data last updated October 13, 2026.
This CheapOair deal was found by Cheapflights users on 10/9. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:31 pm -
Nonstop1h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Allegiant Air logo]()
$47
This CheapOair deal was found by Cheapflights users on 10/13. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/133:16 pm -
Nonstop1h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/13![Allegiant Air logo]()
$54
This CheapOair deal was found by Cheapflights users on 10/12. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:26 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/12![Allegiant Air logo]()
$57
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Mon 11/239:29 am -
Nonstop1h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Allegiant Air logo]()
$59
This Kiwi.com deal was found by Cheapflights users on 10/9. 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 12/109:34 pm -
1 stop20h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$75
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 10/294:42 pm -
1 stop23h 55m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$90
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 10/287:15 am -
2 stops27h 14m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$102
This Kiwi.com deal was found by Cheapflights users on 10/8. 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 10/286:16 am -
2 stops28h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$106
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Wed 11/253:27 pm -
Nonstop1h 27m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Allegiant Air logo]()
$112
This Kiwi.com deal was found by Cheapflights users on 10/8. 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.
Sat 10/317:15 am -
2 stops26h 29m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Multiple Airlines logo]()
$113
This Kiwi.com deal was found by Cheapflights users on 10/9. 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.
Wed 11/117:35 pm -
2 stops25h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/9![Multiple Airlines logo]()
$115
This Southwest deal was found by Cheapflights users on 10/8. 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 Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:45 pm -
1 stop3h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/8![Southwest logo]()
$115
Find flight deals from Illinois to Knoxville
Keep the following information in mind while searching for Illinois to Knoxville flight deals. Data was last updated October 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $253 (American Airlines) |
One-way from | $47 (CheapOair) |
Popular in | September |
Cheapest in | June |
Average price | $303 |
Good round-trip deal | $106 or less |
Good one-way deal | $122 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Illinois to Knoxville 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 October 13, 2026.
Use the filters below to find and compare flights from Illinois to Knoxville that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Mon 11/16
8:05 am-3:30 pm
1 stop6h 25m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$133
MolineKnoxville
MLI Moline Quad-City - TYS Knoxville McGhee Tyson
MLITYS
Moline Quad-City
Fri 11/13
6:12 pm-6:35 pm
1 stop23h 23m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Tue 11/10
1:30 pm-8:09 pm
1 stop5h 39m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Sat 11/14
3:00 pm-10:12 pm
1 stop6h 12m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Wed 12/9
10:36 am-6:56 pm
1 stop7h 20m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Tue 12/8
8:04 am-1:51 pm
1 stop4h 47m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Fri 12/11
5:05 pm-9:33 pm
1 stop3h 28m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Sat 12/12
2:41 pm-8:00 pm
1 stop4h 19m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$137
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Mon 11/23
6:00 am-11:28 am
1 stop4h 28m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Sat 10/31
1:27 pm-7:49 pm
1 stop5h 22m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$147
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Illinois to Knoxville
Have a flexible travel schedule? Discover the best time to fly to Knoxville from Illinois with our price prediction graph.
ORD-TYS
MDW-TYS
BLV-TYS
RFD-TYS
MLI-TYS
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 Knoxville
USIL-TYS
ORD-TYS
MDW-TYS
BLV-TYS
RFD-TYS
What is the cheapest month to book a flight from Illinois to Knoxville?
Currently, June is the cheapest month in which you can book a flight from Illinois to Knoxville (average of $263). Flying from Illinois to Knoxville in September is currently the most expensive (average of $386). 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 TYS?
Find hourly flight availability from Illinois to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated October 13, 2026.
When flying from Illinois to Knoxville, the time of day you fly usually plays a role in the price. Save by searching for a flight in the morning, which can drop the price by up to 12% versus a flight in the afternoon.
Weekly flight availability from Illinois to Knoxville
Explore weekly flight availability from Illinois to Knoxville. 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 October 13, 2026.
The most flights from USIL to TYS are scheduled on a Monday (29 on average). You will have fewer flight options on Friday, which is when the least amount of flights are scheduled (16 on average).
How much does it cost to fly round-trip from Illinois to Knoxville?
Airfare is below average for this route at the moment.
Illinois to Knoxville flights typically cost between $279 and $499 in November.The cheapest round-trip price found within the last 5 days was $253 on American Airlines (Nov 2-Nov 7).
How far ahead should I book a flight from Illinois to Knoxville?
The price you pay for your flight from Illinois to Knoxville may vary depending on when you book. For the best chance of a lower fare, look to book 74 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 Knoxville?
Use this chart to determine the cheapest time to fly round-trip from Illinois to Knoxville. Price data was last updated on October 19, 2025.
Travelers seeking maximum savings on their Illinois to Knoxville flight should consider departing on Tuesday at noon when fares are most often at their lowest. Saturday evenings 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 Knoxville. 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 Knoxville?
Book flights to Knoxville if you plan to visit one of these locationsCherokee
Crossville
Morristown
Newport
Bryson City
Murphy
Browse thousands of different options on Cheapflights for your next trip
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Alternative routes for Illinois to Knoxville
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Complete your trip
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Search flights from Illinois to Knoxville by cabin class
Find flights from Illinois to Knoxville, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Knoxville
Explore flights to Knoxville departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on October 13, 2026.
Illinois and Knoxville flights
Browse other Illinois and Knoxville flight options. Last updated on October 13, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Illinois to Knoxville flights
Consider these flights traveling from Illinois to Knoxville.
Top 5 airlines flying from Illinois to Knoxville
Discover the top 5 airlines that operate flights from Illinois to Knoxville. 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 October 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$151 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$161 | Average$377 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$188 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$189 | Average$387 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$405 | FlexibilityNo cancel fee | On-timeN/A |