$69+ 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 11/2. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TYS
Nov 26 — Dec 31
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
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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 27, 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 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/127:55 am -
1 stop13h 42m
Fri 11/131:17 pm -
1 stop10h 26m
Deal found 10/22![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/184:36 pm -
2 stops25h 57m
Wed 12/25:14 pm -
1 stop21h 42m
Deal found 10/22![Multiple Airlines logo]()
$263
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/58:00 am -
1 stop4h 51m
Mon 12/77:26 pm -
1 stop5h 30m
Deal found 10/25![Delta logo]()
$265
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/15:12 pm -
1 stop4h 05m
Tue 12/812:32 pm -
1 stop4h 44m
Deal found 10/25![Delta logo]()
$265
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:55 pm -
Nonstop1h 52m
Mon 11/308:50 pm -
Nonstop2h 09m
Deal found 10/27![American Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/18:00 am -
1 stop3h 20m
Tue 12/81:00 pm -
2 stops7h 05m
Deal found 10/25![Southwest logo]()
$270
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Fri 11/277:20 am -
1 stop6h 40m
Mon 12/75:15 pm -
1 stop6h 30m
Deal found 10/23![Southwest logo]()
$273
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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
Fri 11/207:30 am -
1 stop13h 17m
Deal found 10/22![Multiple Airlines logo]()
$276
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/245:30 am -
1 stop4h 58m
Tue 12/17:10 am -
1 stop4h 49m
Deal found 10/24![Delta logo]()
$277
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/147:55 am -
1 stop23h 10m
Mon 11/162:21 pm -
1 stop9h 22m
Deal found 10/23![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/126:08 am -
2 stops15h 29m
Mon 11/163:04 pm -
Nonstop1h 37m
Deal found 10/23![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:26 pm -
Nonstop1h 25m
Sun 11/14:57 pm -
1 stop25h 57m
Deal found 10/26![Allegiant Air logo]()
$280
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 27, 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 27, 2026.
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Fri 11/277:20 am -
1 stop6h 40m
Mon 12/75:15 pm -
1 stop6h 30m
Deal found 10/23![Southwest logo]()
$273
This Delta deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/61:41 pm -
1 stop3h 41m
Thu 12/107:26 pm -
1 stop4h 28m
Deal found 10/27![Delta logo]()
$285
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/95:59 pm -
Nonstop1h 55m
Fri 11/205:40 pm -
Nonstop2h 03m
Deal found 10/26![United Airlines logo]()
$305
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/411:26 am -
2 stops9h 19m
Sun 12/64:38 pm -
1 stop6h 35m
Deal found 10/23![American Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/257:53 pm -
1 stop13h 19m
Thu 12/39:05 pm -
1 stop13h 21m
Deal found 10/24![Allegiant Air logo]()
$359
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/88:09 pm -
1 stop19h 23m
Thu 11/127:45 am -
2 stops25h 04m
Deal found 10/24![Multiple Airlines logo]()
$405
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:15 pm -
2 stops6h 35m
Sun 12/137:25 pm -
1 stop5h 45m
Deal found 10/26![Southwest logo]()
$290
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/91:34 pm -
1 stop5h 40m
Sun 12/136:17 pm -
1 stop6h 39m
Deal found 10/26![Delta logo]()
$302
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:30 am -
1 stop4h 58m
Tue 12/17:10 am -
1 stop4h 49m
Deal found 10/24![Delta logo]()
$302
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:43 am -
1 stop5h 16m
Wed 12/21:55 pm -
1 stop5h 03m
Deal found 10/26![United Airlines logo]()
$334
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/245:00 am -
1 stop5h 02m
Mon 12/286:00 am -
1 stop5h 16m
Deal found 10/25![American Airlines logo]()
$339
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/38:00 am -
1 stop3h 20m
Thu 12/35:15 pm -
1 stop6h 30m
Deal found 10/26![Southwest logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/101:49 pm -
1 stop19h 03m
Mon 12/142:12 pm -
1 stop23h 03m
Deal found 10/23![Allegiant Air logo]()
$363
This Delta deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/186:00 am -
1 stop4h 06m
Sun 2/217:30 am -
1 stop6h 03m
Deal found 10/26![Delta logo]()
$302
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/28:00 am -
1 stop3h 20m
Thu 12/35:15 pm -
1 stop6h 30m
Deal found 10/26![Southwest logo]()
$311
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:30 am -
1 stop5h 43m
Sat 11/1410:51 am -
1 stop4h 03m
Deal found 10/26![United Airlines logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/88:09 pm -
1 stop19h 23m
Thu 11/122:09 pm -
1 stop24h 26m
Deal found 10/24![Allegiant Air logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/167:03 pm -
2 stops40h 03m
Fri 11/206:01 pm -
1 stop17h 40m
Deal found 10/23![Multiple Airlines logo]()
$435
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/285:10 am -
1 stop8h 20m
Wed 12/22:40 pm -
2 stops9h 05m
Deal found 10/23![Southwest logo]()
$331
This American Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/25:44 am -
1 stop4h 18m
Sat 12/58:35 pm -
1 stop4h 28m
Deal found 10/23![American Airlines logo]()
$407
This Delta deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/161:05 pm -
1 stop6h 35m
Fri 4/237:30 am -
1 stop6h 03m
Deal found 10/25![Delta logo]()
$339
This United Airlines deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/192:20 pm -
Nonstop1h 55m
Tue 1/55:55 pm -
Nonstop2h 06m
Deal found 10/23![United Airlines logo]()
$389
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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
Mon 11/165:52 pm -
1 stop20h 02m
Deal found 10/23![Allegiant Air logo]()
$396
This American Airlines deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 10/25![American Airlines logo]()
$417
This Southwest deal was found by Cheapflights users on 10/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/162:20 pm -
2 stops6h 05m
Fri 4/234:35 pm -
1 stop5h 40m
Deal found 10/25![Southwest logo]()
$359
This United Airlines deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:45 am -
1 stop5h 15m
Sat 12/56:00 am -
1 stop5h 10m
Deal found 10/26![United Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/276:04 pm -
1 stop17h 00m
Tue 12/13:42 pm -
2 stops45h 15m
Deal found 10/26![Multiple Airlines logo]()
$507
This Delta deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 3/185:00 pm -
1 stop3h 45m
Sun 3/2112:00 pm -
1 stop5h 22m
Deal found 10/23![Delta logo]()
$384
This Southwest deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Southwest is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 am -
1 stop6h 00m
Wed 11/111:00 pm -
1 stop6h 05m
Deal found 10/26![Southwest logo]()
$369
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/299:15 am -
1 stop12h 31m
Fri 1/295:59 pm -
1 stop16h 56m
Deal found 10/23![Allegiant Air logo]()
$451
Last-minute flights from Illinois to KnoxvilleDiscover last-minute flight deals from Illinois to Knoxville. Data last updated October 27, 2026 and is based on user searches.
Discover last-minute flight deals from Illinois to Knoxville. Data last updated October 27, 2026 and is based on user searches.
This Kiwi.com deal was found by Cheapflights users on 10/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/302:26 pm -
Nonstop1h 25m
Sun 11/14:57 pm -
1 stop25h 57m
Deal found 10/26![Allegiant Air logo]()
$280
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/97:50 pm -
2 stops20h 28m
Fri 11/2012:38 pm -
1 stop8h 37m
Deal found 10/22![Multiple Airlines logo]()
$265
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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
Fri 11/207:30 am -
1 stop13h 17m
Deal found 10/22![Multiple Airlines logo]()
$276
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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
Wed 11/112:35 pm -
1 stop19h 47m
Deal found 10/22![Allegiant Air logo]()
$281
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/127:55 am -
1 stop13h 42m
Fri 11/131:17 pm -
1 stop10h 26m
Deal found 10/22![Multiple Airlines logo]()
$261
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/126:08 am -
2 stops15h 29m
Mon 11/163:04 pm -
Nonstop1h 37m
Deal found 10/23![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/147:55 am -
1 stop23h 10m
Mon 11/162:21 pm -
1 stop9h 22m
Deal found 10/23![Multiple Airlines logo]()
$279
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/184:36 pm -
2 stops25h 57m
Wed 12/25:14 pm -
1 stop21h 42m
Deal found 10/22![Multiple Airlines logo]()
$263
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/189:00 am -
1 stop6h 48m
Sat 11/216:05 pm -
1 stop5h 50m
Deal found 10/27![American Airlines logo]()
$281
This Delta deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/245:30 am -
1 stop4h 58m
Tue 12/17:10 am -
1 stop4h 49m
Deal found 10/24![Delta logo]()
$277
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/258:55 pm -
Nonstop1h 52m
Mon 11/308:50 pm -
Nonstop2h 09m
Deal found 10/27![American Airlines logo]()
$270
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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.
Fri 11/277:20 am -
1 stop6h 40m
Mon 12/75:15 pm -
1 stop6h 30m
Deal found 10/23![Southwest logo]()
$273
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 27, 2026.
Search for one-way flight options from Illinois to Knoxville. Find affordable one-way fares based on user searches. Data last updated October 27, 2026.
This CheapOair deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 11/21:26 pm -
Nonstop1h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Allegiant Air logo]()
$69
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Allegiant Air logo]()
$73
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 10/23![Allegiant Air logo]()
$79
This Kiwi.com deal was found by Cheapflights users on 10/24. Clicking the “Pick Dates” 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 11/68:09 pm -
Nonstop1h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/24![Allegiant Air logo]()
$94
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 1/138:25 am -
1 stop23h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$95
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/69:34 pm -
1 stop20h 08m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$97
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/138:30 pm -
2 stops37h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$121
This Southwest deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 12/67:20 am -
1 stop6h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Southwest logo]()
$123
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/1210:19 am -
2 stops10h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$131
This American Airlines deal was found by Cheapflights users on 10/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/138:31 am -
Nonstop1h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/27![American Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 10/22. Clicking the “Pick Dates” 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 11/126:08 am -
2 stops14h 57m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/22![Multiple Airlines logo]()
$135
This Kiwi.com deal was found by Cheapflights users on 10/23. Clicking the “Pick Dates” 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 stops26h 02m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 10/23![Multiple Airlines logo]()
$138
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 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $261 (Kiwi.com) |
One-way from | $69 (CheapOair) |
Popular in | September |
Cheapest in | June |
Average price | $337 |
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 27, 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
Fri 11/13
3:16 pm-5:46 pm
Nonstop1h 30m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$73
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Wed 1/13
8:25 am-8:30 am
1 stop23h 05m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$95
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Fri 11/6
8:09 pm-10:39 pm
Nonstop1h 30m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$106
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Fri 11/13
8:30 pm-11:23 am
2 stops37h 53m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$121
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Sun 12/6
7:20 am-3:00 pm
1 stop6h 40m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$123
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Fri 11/13
6:42 pm-11:23 am
3 stops39h 41m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$149
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Fri 11/13
12:00 pm-8:35 pm
2 stops7h 35m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$158
ChicagoKnoxville
MDW Chicago Midway - TYS Knoxville McGhee Tyson
MDWTYS
Chicago Midway
Sun 12/13
10:10 am-6:45 pm
2 stops7h 35m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$170
MolineKnoxville
MLI Moline Quad-City - TYS Knoxville McGhee Tyson
MLITYS
Moline Quad-City
Wed 11/11
10:34 am-4:40 pm
1 stop29h 06m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$174
ChicagoKnoxville
ORD Chicago O'Hare Intl - TYS Knoxville McGhee Tyson
ORDTYS
Chicago O'Hare Intl
Fri 11/27
4:08 pm-6:52 pm
Nonstop1h 44m
Knoxville McGhee Tyson
Wed 12/31
12:00 am-11:00 pm
Nonstop0h 00m
$177
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
MLI-TYS
RFD-TYS
BLV-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
MLI-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 $261). 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 27, 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 17% versus a flight in the afternoon.
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 $274 and $407 in November.The cheapest round-trip price found within the last 5 days was $261 on Multiple Airlines (Nov 12-Nov 13).
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Knoxville by adding a car rental and/or hotel reservation to your travel itinerary.
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 27, 2026.
Illinois and Knoxville flights
Browse other Illinois and Knoxville flight options. Last updated on October 27, 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 27, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$82 | Average$151 | FlexibilityNo cancel fee | On-time88% | |
| Cheapest$161 | Average$413 | FlexibilityNo cancel fee | On-time63% | |
| Cheapest$188 | Average$406 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$189 | Average$389 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$288 | Average$395 | FlexibilityNo cancel fee | On-timeN/A |