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Cheap flights from Illinois to Knoxville from $86

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Illinois to Knoxville departing on 1/21. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Find the cheapest flights from Illinois to Knoxville

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
8:10 am - 5:53 pm
ORD
-
TYS
8h 43m1 stop
Multiple Airlines Logo
1:39 pm - 11:27 am
TYS
-
ORD
22h 48m1 stop
$154Multiple Airlines
Thu, Jan 22 - Thu, Jan 29
United Airlines Logo
6:10 pm - 8:52 pm
ORD
-
TYS
1h 42mnonstop
United Airlines Logo
6:45 am - 7:48 am
TYS
-
ORD
2h 03mnonstop
$189United Airlines
Thu, Jan 22 - Thu, Jan 29
Multiple Airlines Logo
5:32 pm - 8:39 am
ORD
-
TYS
14h 07m1 stop
Multiple Airlines Logo
7:15 am - 10:42 pm
TYS
-
ORD
16h 27m1 stop
$194Multiple Airlines
Sat, Jan 24 - Mon, Jan 26
Multiple Airlines Logo
5:32 pm - 8:39 am
ORD
-
TYS
14h 07m1 stop
Multiple Airlines Logo
11:59 am - 7:44 pm
TYS
-
ORD
8h 45m1 stop
$195Multiple Airlines
Wed, Jan 21 - Sat, Jan 24
Delta Logo
1:26 pm - 8:47 pm
MDW
-
TYS
6h 21m1 stop
Delta Logo
1:00 pm - 5:55 pm
TYS
-
MDW
5h 55m1 stop
$209Delta
Thu, Jan 22 - Mon, Jan 26
Southwest Logo
3:35 pm - 8:05 pm
MDW
-
TYS
3h 30m1 stop
Southwest Logo
7:50 am - 1:50 pm
TYS
-
MDW
7h 00m2 stops
$214Southwest
Wed, Mar 25 - Tue, Mar 31
American Airlines Logo
6:00 am - 2:32 pm
STL
-
TYS
7h 32m1 stop
American Airlines Logo
6:00 am - 11:03 am
TYS
-
STL
6h 03m1 stop
$217American Airlines
Thu, Jan 15 - Sun, Jan 18
Southwest Logo
10:30 am - 8:05 pm
MDW
-
TYS
8h 35m2 stops
Southwest Logo
7:50 am - 5:05 pm
TYS
-
MDW
10h 15m2 stops
$219Southwest
Wed, Mar 25 - Tue, Mar 31
Delta Logo
7:10 am - 1:50 pm
STL
-
TYS
5h 40m1 stop
Delta Logo
5:40 am - 8:53 am
TYS
-
STL
4h 13m1 stop
$233Delta
Wed, Jan 21 - Wed, Jan 28
American Airlines Logo
10:23 am - 3:27 pm
STL
-
TYS
4h 04m1 stop
American Airlines Logo
12:20 pm - 5:05 pm
TYS
-
STL
5h 45m1 stop
$234American Airlines
Tue, Feb 17 - Thu, Feb 19

Southwest flights from Illinois to Knoxville

Our best Southwest deals on Illinois to Knoxville flight tickets
Southwest
Mar 25
MDW3:35 pmChicago Midway
3h 30m
1 stop
TYS8:05 pmKnoxville McGhee Tyson
Mar 31
TYS7:50 amKnoxville McGhee Tyson
7h 00m
2 stops
MDW1:50 pmChicago Midway
$214
Find similar
Southwest
Mar 25
MDW10:30 amChicago Midway
8h 35m
2 stops
TYS8:05 pmKnoxville McGhee Tyson
Mar 31
TYS7:50 amKnoxville McGhee Tyson
10h 15m
2 stops
MDW5:05 pmChicago Midway
$219
Find similar
Southwest
Apr 22
MDW9:25 amChicago Midway
6h 45m
1 stop
TYS5:10 pmKnoxville McGhee Tyson
Apr 27
TYS8:05 amKnoxville McGhee Tyson
5h 00m
1 stop
MDW12:05 pmChicago Midway
$263
Find similar

United Airlines flights from Illinois to Knoxville

Our best United Airlines deals on Illinois to Knoxville flight tickets
United Airlines
Jan 22
ORD6:10 pmChicago O'Hare Intl
1h 42m
TYS8:52 pmKnoxville McGhee Tyson
Jan 29
TYS6:45 amKnoxville McGhee Tyson
2h 03m
ORD7:48 amChicago O'Hare Intl
$189
Find similar
United Airlines
Jan 10
ORD7:42 amChicago O'Hare Intl
1h 50m
TYS10:32 amKnoxville McGhee Tyson
Jan 20
TYS11:10 amKnoxville McGhee Tyson
1h 55m
ORD12:05 pmChicago O'Hare Intl
$204
Find similar
United Airlines
Feb 13
ORD6:00 pmChicago O'Hare Intl
1h 37m
TYS8:37 pmKnoxville McGhee Tyson
Feb 16
TYS6:45 amKnoxville McGhee Tyson
2h 02m
ORD7:47 amChicago O'Hare Intl
$248
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 26, 2025.
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

Price

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Thu 1/22

8:10 am-5:53 pm

1 stop8h 43m

Knoxville McGhee Tyson

Thu 1/29

1:39 pm-11:27 am

1 stop22h 48m

$154

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Thu 1/22

6:10 pm-8:52 pm

Nonstop1h 42m

Knoxville McGhee Tyson

Thu 1/29

6:45 am-7:48 am

Nonstop2h 03m

$189

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 1/24

5:32 pm-8:39 am

1 stop14h 07m

Knoxville McGhee Tyson

Mon 1/26

7:15 am-10:42 pm

1 stop16h 27m

$194

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Wed 1/21

5:32 pm-8:39 am

1 stop14h 07m

Knoxville McGhee Tyson

Sat 1/24

11:59 am-7:44 pm

1 stop8h 45m

$195

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Thu 1/22

1:26 pm-8:47 pm

1 stop6h 21m

Knoxville McGhee Tyson

Mon 1/26

1:00 pm-5:55 pm

1 stop5h 55m

$209

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Wed 3/25

3:35 pm-8:05 pm

1 stop3h 30m

Knoxville McGhee Tyson

Tue 3/31

7:50 am-1:50 pm

2 stops7h 00m

$214

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Thu 1/15

6:00 am-2:32 pm

1 stop7h 32m

Knoxville McGhee Tyson

Sun 1/18

6:00 am-11:03 am

1 stop6h 03m

$217

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Wed 3/25

10:30 am-8:05 pm

2 stops8h 35m

Knoxville McGhee Tyson

Tue 3/31

7:50 am-5:05 pm

2 stops10h 15m

$219

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Wed 1/21

7:10 am-1:50 pm

1 stop5h 40m

Knoxville McGhee Tyson

Wed 1/28

5:40 am-8:53 am

1 stop4h 13m

$233

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Tue 2/17

10:23 am-3:27 pm

1 stop4h 04m

Knoxville McGhee Tyson

Thu 2/19

12:20 pm-5:05 pm

1 stop5h 45m

$234

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 Knoxville from

How to get the cheapest flight ticket from Illinois to Knoxville

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 Knoxville?

The month of September is, on average, the cheapest month to fly to Knoxville from Illinois, with most prices found around $229. If you aren’t able to travel during the month of September, then book flights to Knoxville from Illinois during June instead. Flights to Knoxville in June, while not as cheap as those in September, still average around $244.

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

The cheapest day to depart from Illinois to Knoxville is on a Saturday. Travelers who choose to depart for Knoxville on a Saturday will often find tickets for as low as $261. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Illinois to Knoxville for around $319.

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

At noon is the cheapest time of day to fly from Illinois to Knoxville when you can find flight prices for as low as $262. Flying to Knoxville at noon is an ideal time because this is during off-peak travel hours. In contrast, the most expensive time of day to depart to Knoxville is in the afternoon when prices are around $297.

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

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

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

You are more likely to see cheaper flights to Knoxville from Illinois when booking weeks ahead of your departure date. In general, you can expect to find flights to Knoxville for around $314 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Knoxville from Illinois for as low as $224 on momondo.

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

There are 4 cabin classes available to choose from on Illinois to Knoxville McGhee Tyson 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 Illinois to Knoxville flights?

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

Cheap Illinois to Knoxville flight deals and tips

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

Best Price Found

$91

Fastest flight time

1h 39m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Illinois in the past 72 hours is $91. The best round-trip flight deal from Illinois to Knoxville found on momondo in the last 72 hours is $138.
The fastest flight from Illinois to Knoxville takes 1h 39m
Direct flights go from Illinois to Knoxville every day.
There is 1 airport in Knoxville. From Illinois there are direct flights to Knoxville McGhee Tyson (TYS).
Search flight deals

  • When did momondo last update prices for flights from Illinois to Knoxville McGhee Tyson Airport?

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

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

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Illinois to Knoxville McGhee Tyson Airport.

  • What documentation or ID do you need to fly to Knoxville McGhee Tyson Airport?

    The required travel and health documents for your Knoxville McGhee Tyson Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Knoxville McGhee Tyson Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Best airlines flying from Illinois to Knoxville

Compare and see reviews for airlines that fly from Illinois to Knoxville with momondo
Airline
Rating
Free Cancellation
Price
Allegiant AirPriceFrom $82Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $189Free CancellationRating
7.2
11,062 reviews
Search American Airlines flights
United AirlinesPriceFrom $192Free CancellationRating
7.4
9,115 reviews
Search United Airlines flights
DeltaPriceFrom $208Free CancellationRating
7.9
8,013 reviews
Search Delta flights

Traveling to a place near Knoxville?

Book flights to Knoxville if you plan to visit one of these locations
Pigeon Forge
Gatlinburg
Cherokee
Bryson City
Morristown
Corbin
Maryville
Crossville
Murphy
Alcoa
Oak Ridge
Newport
Lenoir City
Kodak
Dandridge
Jefferson City
Clinton
Rockford

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Illinois to Knoxville for you.

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

Yes. momondo enables you to select and highlight flights to Knoxville from Illinois with this policy.

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

Once you have performed a search for Illinois to Knoxville flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

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

If you are not ready to book a flight from Illinois to Knoxville now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Knoxville and let you know when they change.

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