Cheap flights from Knoxville to Illinois from $60

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Knoxville to Illinois departing on 8/16. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Knoxville to Illinois

Cheap round-trip flights

Enter your travel dates to find the best prices.
United Airlines Logo
7:00 am - 7:55 am
TYS
-
ORD
1h 55mnonstop
United Airlines Logo
7:15 am - 10:08 am
ORD
-
TYS
1h 53mnonstop
$189United Airlines
Thu, Apr 9 - Sun, Apr 12
United Airlines Logo
7:00 am - 8:00 am
TYS
-
ORD
2h 00mnonstop
United Airlines Logo
6:06 pm - 8:47 pm
ORD
-
TYS
1h 41mnonstop
$204United Airlines
Fri, Mar 20 - Tue, Mar 24
Multiple Airlines Logo
11:27 am - 10:21 pm
TYS
-
MDW
11h 54m
2 stops
Multiple Airlines Logo
2:47 pm - 5:13 pm
MDW
-
TYS
1h 26mnonstop
$205Multiple Airlines
Thu, Apr 9 - Thu, May 21
Multiple Airlines Logo
1:15 pm - 7:31 pm
TYS
-
MDW
31h 16m
2 stops
Multiple Airlines Logo
2:46 pm - 5:14 pm
MDW
-
TYS
1h 28mnonstop
$207Multiple Airlines
Mon, May 11 - Thu, Jun 4
American Airlines Logo
8:48 pm - 9:57 pm
TYS
-
ORD
2h 09mnonstop
American Airlines Logo
6:30 pm - 9:21 pm
ORD
-
TYS
1h 51mnonstop
$208American Airlines
Fri, Apr 17 - Fri, Apr 24
Southwest Logo
5:50 pm - 10:15 pm
TYS
-
MDW
5h 25m
1 stop
Southwest Logo
6:00 am - 3:15 pm
MDW
-
TYS
8h 15m
1 stop
$209Southwest
Wed, Apr 8 - Sun, Apr 12
Southwest Logo
12:15 pm - 8:15 pm
TYS
-
MDW
9h 00m
2 stops
Southwest Logo
2:15 pm - 6:30 pm
MDW
-
TYS
3h 15m
1 stop
$214Southwest
Thu, Apr 9 - Sat, Apr 11
Allegiant Air Logo
7:00 am - 6:22 pm
TYS
-
MDW
12h 22m
1 stop
Allegiant Air Logo
2:47 pm - 5:13 pm
MDW
-
TYS
1h 26mnonstop
$218Allegiant Air
Thu, Apr 23 - Thu, May 28
American Airlines Logo
7:40 am - 11:01 am
TYS
-
BMI
4h 21m
1 stop
American Airlines Logo
2:56 pm - 9:24 pm
BMI
-
TYS
5h 28m
1 stop
$249American Airlines
Wed, Apr 1 - Mon, Apr 6
Allegiant Air Logo
10:03 pm - 4:19 pm
TYS
-
MLI
19h 16m
1 stop
Allegiant Air Logo
4:25 pm - 10:16 pm
MLI
-
TYS
28h 51m
1 stop
$310Allegiant Air
Fri, May 22 - Wed, Jun 3

Delta flights from Knoxville to Illinois

Our best Delta deals on Knoxville to Illinois flight tickets
Delta
Apr 9
TYS5:24 pmKnoxville McGhee Tyson
3h 53m
1 stop
ORD8:17 pmChicago O'Hare Intl
May 16
ORD8:10 amChicago O'Hare Intl
5h 55m
1 stop
TYS3:05 pmKnoxville McGhee Tyson
$209
Delta
Mar 20
TYS11:18 amKnoxville McGhee Tyson
6h 25m
1 stop
ORD4:43 pmChicago O'Hare Intl
Mar 24
ORD9:50 amChicago O'Hare Intl
5h 53m
1 stop
TYS4:43 pmKnoxville McGhee Tyson
$224
Delta
Apr 18
TYS5:15 pmKnoxville McGhee Tyson
4h 01m
1 stop
ORD8:16 pmChicago O'Hare Intl
Apr 25
ORD5:59 pmChicago O'Hare Intl
4h 55m
1 stop
TYS11:54 pmKnoxville McGhee Tyson
$229

United Airlines flights from Knoxville to Illinois

Our best United Airlines deals on Knoxville to Illinois flight tickets
United Airlines
Apr 9
TYS7:00 amKnoxville McGhee Tyson
1h 55m
ORD7:55 amChicago O'Hare Intl
Apr 12
ORD7:15 amChicago O'Hare Intl
1h 53m
TYS10:08 amKnoxville McGhee Tyson
$189
United Airlines
Mar 20
TYS7:00 amKnoxville McGhee Tyson
2h 00m
ORD8:00 amChicago O'Hare Intl
Mar 24
ORD6:06 pmChicago O'Hare Intl
1h 41m
TYS8:47 pmKnoxville McGhee Tyson
$204
United Airlines
Apr 3
TYS7:00 amKnoxville McGhee Tyson
1h 55m
ORD7:55 amChicago O'Hare Intl
Apr 5
ORD7:15 amChicago O'Hare Intl
1h 53m
TYS10:08 amKnoxville McGhee Tyson
$223

momondo Fare Finder

 
Customize your flight search to find flights from Knoxville to Illinois that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated March 5, 2026.
Use the filters below to find and compare flights from Knoxville to Illinois that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 4/9

7:00 am-7:55 am

Nonstop1h 55m

Chicago O'Hare Intl

Sun 4/12

7:15 am-10:08 am

Nonstop1h 53m

$189
Quickest round-trip

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Fri 3/20

7:00 am-8:00 am

Nonstop2h 00m

Chicago O'Hare Intl

Tue 3/24

6:06 pm-8:47 pm

Nonstop1h 41m

$204

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 4/9

11:27 am-10:21 pm

2 stops11h 54m

Chicago Midway

Thu 5/21

2:47 pm-5:13 pm

Nonstop1h 26m

$205

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Mon 5/11

1:15 pm-7:31 pm

2 stops31h 16m

Chicago Midway

Thu 6/4

2:46 pm-5:14 pm

Nonstop1h 28m

$207

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Fri 4/17

8:48 pm-9:57 pm

Nonstop2h 09m

Chicago O'Hare Intl

Fri 4/24

6:30 pm-9:21 pm

Nonstop1h 51m

$208

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Wed 4/8

5:50 pm-10:15 pm

1 stop5h 25m

Chicago Midway

Sun 4/12

6:00 am-3:15 pm

1 stop8h 15m

$209

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 4/9

12:15 pm-8:15 pm

2 stops9h 00m

Chicago Midway

Sat 4/11

2:15 pm-6:30 pm

1 stop3h 15m

$214

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 4/23

7:00 am-6:22 pm

1 stop12h 22m

Chicago Midway

Thu 5/28

2:47 pm-5:13 pm

Nonstop1h 26m

$218

KnoxvilleBloomington

TYS - BMI

TYSBMI

Knoxville McGhee Tyson

Wed 4/1

7:40 am-11:01 am

1 stop4h 21m

Bloomington-Normal

Mon 4/6

2:56 pm-9:24 pm

1 stop5h 28m

$249

KnoxvilleMoline

TYS - MLI

TYSMLI

Knoxville McGhee Tyson

Fri 5/22

10:03 pm-4:19 pm

1 stop19h 16m

Moline Quad-City

Wed 6/3

4:25 pm-10:16 pm

1 stop28h 51m

$310

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Illinois from

How to get the cheapest flight ticket from Knoxville to Illinois

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Knoxville is in January. Flight prices, which tend to average around $189, are often lower during this time because this is during the off-season. If you aren’t able to travel to Illinois during the month of January, then flying in August is also cheap. Prices for this month can be found on momondo for an average of $219.

What is the cheapest day to depart on your flight to Illinois?

The cheapest day to depart from Knoxville to Illinois is on a Friday when prices can be found for as low as $369. Flights from Knoxville to Illinois on a Sunday will generally be more expensive and average around $700. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Illinois?

Our most recent data shows that the best time of day to fly to Illinois is in the morning. Flights from Knoxville to Illinois during this time can be as low as $475. Flights in the evening are often more expensive with an average ticket price of $774.

What is the cheapest Knoxville McGhee Tyson to Illinois flight route?

Fly from Knoxville McGhee Tyson to Belleville for the best Knoxville McGhee Tyson - Illinois flight prices

How far in advance should I book a flight to Illinois?

You are more likely to see cheaper flights to Illinois from Knoxville when booking weeks ahead of your departure date. In general, you can expect to find flights to Illinois for around $283 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Illinois from Knoxville for as low as $214 on momondo.

What cabin class options are available on Knoxville McGhee Tyson to Illinois flights?

There are 4 cabin classes available to choose from on Knoxville McGhee Tyson to Illinois flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Knoxville to Illinois flights?

No. A direct flight is the cheapest option for a flight between Knoxville to Illinois.

Cheap Knoxville to Illinois flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Knoxville to Illinois

Best Price Found

$233

Fastest flight time

1h 34m

Direct flights

Every day

Airports in Illinois

98 airports
The best one-way flight to Illinois from Knoxville in the past 72 hours is $233. The best round-trip flight deal from Knoxville to Illinois found on momondo in the last 72 hours is $132.
The fastest flight from Knoxville to Illinois takes 1h 34m
Direct flights go from Knoxville to Illinois every day.
There are 98 airports in Illinois. From Knoxville there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).
  • When did momondo last update prices for flights from Knoxville McGhee Tyson Airport to Illinois?

    Prices for flights from Knoxville McGhee Tyson Airport to Illinois are updated daily.

  • How many operators does momondo search for flights from Knoxville McGhee Tyson Airport to Illinois?

  • How old do you have to be to fly from Knoxville McGhee Tyson Airport to Illinois?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Knoxville McGhee Tyson Airport to Illinois.

  • What documentation or ID do you need to fly to Illinois?

    The travel and health documents required for your trip to Illinois can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Illinois. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Knoxville to Illinois?

Best airlines flying from Knoxville to Illinois

Compare and see reviews for airlines that fly from Knoxville to Illinois with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $60Free CancellationRating
7.3
717 reviews
Search Allegiant Air flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,389 reviews
Search United Airlines flights
American AirlinesPriceFrom $189Free CancellationRating
7.1
11,381 reviews
Search American Airlines flights

Why use momondo?

Why should I use momondo to find a flight deal from Knoxville to Illinois?

Finding the right flight to Illinois from Knoxville is quick and easy when you have a range of options in front of you, from reputable agents and recognisable airlines. Options that can then be filtered down to find the best fit. That is what momondo does. We make finding flights to Illinois quick and easy, saving you time and money.

Can I find flights from Knoxville to Illinois with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Knoxville to Illinois flights to just show those with flexible booking policies.

How can momondo help me find flights from Knoxville to Illinois?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Illinois from Knoxville.

I’m not ready to book a flight from Knoxville to Illinois right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Illinois from Knoxville. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

An easier way to manage your Illinois trip

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1 adult
Sat 4/4
Sat 4/11

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