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Cheap flights from Illinois to Knoxville from $55

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 7/5. 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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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
5:05 am - 10:36 am
ORD
-
TYS
28h 31m
1 stop
Multiple Airlines Logo
3:48 pm - 11:01 pm
TYS
-
ORD
32h 13m
2 stops
$196Multiple Airlines
Tue, May 5 - Tue, May 12
Multiple Airlines Logo
1:27 pm - 10:36 am
ORD
-
TYS
20h 09m
1 stop
Multiple Airlines Logo
9:25 pm - 10:23 am
TYS
-
ORD
13h 58m
2 stops
$198Multiple Airlines
Tue, Apr 28 - Thu, Apr 30
Allegiant Air Logo
2:46 pm - 5:14 pm
MDW
-
TYS
1h 28mnonstop
Allegiant Air Logo
1:22 pm - 1:56 pm
TYS
-
MDW
1h 34mnonstop
$198Allegiant Air
Sun, Jun 21 - Sun, Jun 28
Allegiant Air Logo
2:46 pm - 5:14 pm
MDW
-
TYS
1h 28mnonstop
Allegiant Air Logo
1:22 pm - 1:56 pm
TYS
-
MDW
1h 34mnonstop
$202Allegiant Air
Thu, Jun 11 - Thu, Jun 18
Southwest Logo
2:30 pm - 7:40 pm
STL
-
TYS
4h 10m
1 stop
Southwest Logo
5:50 pm - 10:00 pm
TYS
-
STL
5h 10m
1 stop
$249Southwest
Tue, May 5 - Tue, May 12
Southwest Logo
1:15 pm - 8:50 pm
STL
-
TYS
6h 35m
1 stop
Southwest Logo
7:05 am - 2:50 pm
TYS
-
STL
8h 45m
2 stops
$254Southwest
Tue, May 5 - Tue, May 12
American Airlines Logo
2:46 pm - 9:21 pm
BMI
-
TYS
5h 35m
1 stop
American Airlines Logo
8:48 pm - 11:52 pm
TYS
-
BMI
4h 04m
1 stop
$309American Airlines
Wed, Apr 29 - Mon, May 4
American Airlines Logo
11:16 am - 10:24 pm
BMI
-
TYS
10h 08m
2 stops
American Airlines Logo
8:48 pm - 11:52 pm
TYS
-
BMI
4h 04m
1 stop
$314American Airlines
Wed, Apr 29 - Mon, May 4
Delta Logo
4:20 pm - 11:54 pm
BMI
-
TYS
6h 34m
1 stop
Delta Logo
5:40 am - 11:19 am
TYS
-
BMI
6h 39m
1 stop
$319Delta
Tue, Apr 21 - Sat, Apr 25
Delta Logo
5:17 pm - 11:56 pm
MLI
-
TYS
5h 39m
1 stop
Delta Logo
7:27 am - 10:20 am
TYS
-
MLI
3h 53m
1 stop
$329Delta
Tue, May 26 - Tue, Jun 2

Southwest flights from Illinois to Knoxville

Our best Southwest deals on Illinois to Knoxville flight tickets
Southwest
May 5
MDW3:00 pmChicago Midway
3h 40m
1 stop
TYS7:40 pmKnoxville McGhee Tyson
May 12
TYS12:50 pmKnoxville McGhee Tyson
5h 40m
1 stop
MDW5:30 pmChicago Midway
$249
Southwest
May 5
MDW9:25 amChicago Midway
6h 45m
1 stop
TYS5:10 pmKnoxville McGhee Tyson
May 12
TYS8:15 amKnoxville McGhee Tyson
9h 30m
2 stops
MDW4:45 pmChicago Midway
$254
Southwest
May 5
MDW12:50 pmChicago Midway
7h 00m
2 stops
TYS8:50 pmKnoxville McGhee Tyson
May 12
TYS8:15 amKnoxville McGhee Tyson
9h 30m
2 stops
MDW4:45 pmChicago Midway
$259

American Airlines flights from Illinois to Knoxville

Our best American Airlines deals on Illinois to Knoxville flight tickets
American Airlines
May 28
ORD9:48 amChicago O'Hare Intl
1h 54m
TYS12:42 pmKnoxville McGhee Tyson
Jun 1
TYS6:20 pmKnoxville McGhee Tyson
2h 07m
ORD7:27 pmChicago O'Hare Intl
$249
American Airlines
Apr 23
ORD6:30 pmChicago O'Hare Intl
1h 51m
TYS9:21 pmKnoxville McGhee Tyson
May 2
TYS5:10 pmKnoxville McGhee Tyson
2h 14m
ORD6:24 pmChicago O'Hare Intl
$264
American Airlines
Apr 23
ORD6:30 pmChicago O'Hare Intl
1h 51m
TYS9:21 pmKnoxville McGhee Tyson
May 2
TYS3:58 pmKnoxville McGhee Tyson
4h 24m
1 stop
ORD7:22 pmChicago O'Hare Intl
$274

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 April 11, 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

Price

Cheapest round-trip

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Tue 5/5

5:05 am-10:36 am

1 stop28h 31m

Knoxville McGhee Tyson

Tue 5/12

3:48 pm-11:01 pm

2 stops32h 13m

$196

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Tue 4/28

1:27 pm-10:36 am

1 stop20h 09m

Knoxville McGhee Tyson

Thu 4/30

9:25 pm-10:23 am

2 stops13h 58m

$198
Quickest round-trip

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Sun 6/21

2:46 pm-5:14 pm

Nonstop1h 28m

Knoxville McGhee Tyson

Sun 6/28

1:22 pm-1:56 pm

Nonstop1h 34m

$198

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Thu 6/11

2:46 pm-5:14 pm

Nonstop1h 28m

Knoxville McGhee Tyson

Thu 6/18

1:22 pm-1:56 pm

Nonstop1h 34m

$202

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Tue 5/5

2:30 pm-7:40 pm

1 stop4h 10m

Knoxville McGhee Tyson

Tue 5/12

5:50 pm-10:00 pm

1 stop5h 10m

$249

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Tue 5/5

1:15 pm-8:50 pm

1 stop6h 35m

Knoxville McGhee Tyson

Tue 5/12

7:05 am-2:50 pm

2 stops8h 45m

$254

BloomingtonKnoxville

BMI - TYS

BMITYS

Bloomington-Normal

Wed 4/29

2:46 pm-9:21 pm

1 stop5h 35m

Knoxville McGhee Tyson

Mon 5/4

8:48 pm-11:52 pm

1 stop4h 04m

$309

BloomingtonKnoxville

BMI - TYS

BMITYS

Bloomington-Normal

Wed 4/29

11:16 am-10:24 pm

2 stops10h 08m

Knoxville McGhee Tyson

Mon 5/4

8:48 pm-11:52 pm

1 stop4h 04m

$314

BloomingtonKnoxville

BMI - TYS

BMITYS

Bloomington-Normal

Tue 4/21

4:20 pm-11:54 pm

1 stop6h 34m

Knoxville McGhee Tyson

Sat 4/25

5:40 am-11:19 am

1 stop6h 39m

$319

MolineKnoxville

MLI - TYS

MLITYS

Moline Quad-City

Tue 5/26

5:17 pm-11:56 pm

1 stop5h 39m

Knoxville McGhee Tyson

Tue 6/2

7:27 am-10:20 am

1 stop3h 53m

$329

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 $239. If you aren’t able to travel during the month of September, then book flights to Knoxville from Illinois during July instead. Flights to Knoxville in July, while not as cheap as those in September, still average around $249.

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 $268. 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 $318.

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 $315.

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 $189 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

$168

Fastest flight time

1h 25m

Direct flights

Mon, Wed, Fri, Sat and Sun

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Illinois in the past 72 hours is $168. The best round-trip flight deal from Illinois to Knoxville found on momondo in the last 72 hours is $106.
The fastest flight from Illinois to Knoxville takes 1h 25m
Direct flights go from Illinois to Knoxville on Monday, Wednesday, Friday, Saturday and Sunday. The only airline offering direct flights is Allegiant Air.
There is 1 airport in Knoxville. From Illinois there are direct flights to Knoxville McGhee Tyson (TYS).
Search flight deals

Frequently asked questions about flying from Illinois to Knoxville

  • 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 $61Free CancellationRating
7.3
705 reviews
Search Allegiant Air flights
DeltaPriceFrom $138Free CancellationRating
7.9
8,400 reviews
Search Delta flights
American AirlinesPriceFrom $188Free CancellationRating
7.1
11,564 reviews
Search American Airlines flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
9,561 reviews
Search United Airlines 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
Alcoa
Murphy
Oak Ridge
Newport
Lenoir City
Kodak
Dandridge
Clinton
Jefferson City
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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