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Cheap flights from Illinois to Knoxville from $51

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 9/5. 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

Allegiant Air Logo
12:06 pm - 2:30 pmMDW-TYS
1h 24mnonstop
Allegiant Air Logo
10:46 am - 11:18 amTYS-MDW
1h 32mnonstop
$128Allegiant Air
Find Deal
Fri, Oct 3 - Mon, Oct 6
Allegiant Air Logo
7:50 pm - 10:21 pmMDW-TYS
1h 31mnonstop
Allegiant Air Logo
1:50 pm - 2:26 pmTYS-MDW
1h 36mnonstop
$131Allegiant Air
Find Deal
Fri, Sep 26 - Mon, Sep 29
Logo
7:50 pm - 10:21 pmMDW-TYS
1h 31mnonstop
Logo
6:19 pm - 8:53 amTYS-MDW
15h 34m1 stop
$170
Find Deal
Mon, Sep 15 - Thu, Sep 18
Logo
7:50 pm - 10:21 pmMDW-TYS
1h 31mnonstop
Logo
9:31 pm - 9:18 amTYS-MDW
12h 47m1 stop
$171
Find Deal
Fri, Sep 26 - Sat, Sep 27
American Airlines Logo
11:43 am - 2:29 pmORD-TYS
1h 46mnonstop
American Airlines Logo
7:54 am - 9:00 amTYS-ORD
2h 06mnonstop
$189American Airlines
Find Deal
Fri, Nov 21 - Sun, Nov 23
United Airlines Logo
7:17 am - 9:58 amORD-TYS
1h 41mnonstop
United Airlines Logo
7:00 am - 7:55 amTYS-ORD
1h 55mnonstop
$194United Airlines
Find Deal
Sat, Sep 13 - Tue, Sep 16
American Airlines Logo
12:20 pm - 3:06 pmORD-TYS
1h 46mnonstop
American Airlines Logo
4:49 pm - 5:50 pmTYS-ORD
2h 01mnonstop
$199American Airlines
Find Deal
Wed, Sep 10 - Sat, Sep 13
Delta Logo
6:45 am - 1:42 pmORD-TYS
5h 57m1 stop
Delta Logo
5:44 am - 8:32 amTYS-ORD
3h 48m1 stop
$209Delta
Find Deal
Tue, Oct 7 - Wed, Oct 15
Delta Logo
6:00 am - 1:42 pmMDW-TYS
6h 42m1 stop
Delta Logo
12:47 pm - 6:25 pmTYS-MDW
6h 38m1 stop
$209Delta
Find Deal
Tue, Oct 7 - Thu, Oct 16
United Airlines Logo
7:55 pm - 10:45 pmORD-TYS
1h 50mnonstop
United Airlines Logo
7:00 am - 7:55 amTYS-ORD
1h 55mnonstop
$210United Airlines
Find Deal
Sat, Sep 20 - Mon, Sep 29

Delta flights from Illinois to Knoxville

Our best Delta deals on Illinois to Knoxville flight tickets
Delta
Oct 7
ORD6:45 amChicago O'Hare Intl
5h 57m
1 stop
TYS1:42 pmKnoxville McGhee Tyson
Oct 15
TYS5:44 amKnoxville McGhee Tyson
3h 48m
1 stop
ORD8:32 amChicago O'Hare Intl
$209
Find similar
Delta
Sep 9
ORD5:45 amChicago O'Hare Intl
6h 23m
1 stop
TYS1:08 pmKnoxville McGhee Tyson
Sep 16
TYS5:40 pmKnoxville McGhee Tyson
5h 43m
1 stop
ORD10:23 pmChicago O'Hare Intl
$214
Find similar
Delta
Sep 10
ORD12:59 pmChicago O'Hare Intl
6h 37m
1 stop
TYS8:36 pmKnoxville McGhee Tyson
Sep 13
TYS6:08 pmKnoxville McGhee Tyson
5h 06m
1 stop
ORD10:14 pmChicago O'Hare Intl
$219
Find similar

United Airlines flights from Illinois to Knoxville

Our best United Airlines deals on Illinois to Knoxville flight tickets
United Airlines
Sep 13
ORD7:17 amChicago O'Hare Intl
1h 41m
TYS9:58 amKnoxville McGhee Tyson
Sep 16
TYS7:00 amKnoxville McGhee Tyson
1h 55m
ORD7:55 amChicago O'Hare Intl
$194
Find similar
United Airlines
Sep 20
ORD7:55 pmChicago O'Hare Intl
1h 50m
TYS10:45 pmKnoxville McGhee Tyson
Sep 29
TYS7:00 amKnoxville McGhee Tyson
1h 55m
ORD7:55 amChicago O'Hare Intl
$210
Find similar
United Airlines
Sep 13
ORD7:17 amChicago O'Hare Intl
1h 41m
TYS9:58 amKnoxville McGhee Tyson
Sep 15
TYS10:54 amKnoxville McGhee Tyson
2h 04m
ORD11:58 amChicago O'Hare Intl
$213
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 August 28, 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

MDW - TYS

MDWTYS

Chicago Midway

Fri 10/3

12:06 pm-2:30 pm

Nonstop1h 24m

Knoxville McGhee Tyson

Mon 10/6

10:46 am-11:18 am

Nonstop1h 32m

$128

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Fri 9/26

7:50 pm-10:21 pm

Nonstop1h 31m

Knoxville McGhee Tyson

Mon 9/29

1:50 pm-2:26 pm

Nonstop1h 36m

$131

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Mon 9/15

7:50 pm-10:21 pm

Nonstop1h 31m

Knoxville McGhee Tyson

Thu 9/18

6:19 pm-8:53 am

1 stop15h 34m

$170

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Fri 9/26

7:50 pm-10:21 pm

Nonstop1h 31m

Knoxville McGhee Tyson

Sat 9/27

9:31 pm-9:18 am

1 stop12h 47m

$171

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Fri 11/21

11:43 am-2:29 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sun 11/23

7:54 am-9:00 am

Nonstop2h 06m

$189

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 9/13

7:17 am-9:58 am

Nonstop1h 41m

Knoxville McGhee Tyson

Tue 9/16

7:00 am-7:55 am

Nonstop1h 55m

$194

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Wed 9/10

12:20 pm-3:06 pm

Nonstop1h 46m

Knoxville McGhee Tyson

Sat 9/13

4:49 pm-5:50 pm

Nonstop2h 01m

$199

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Tue 10/7

6:45 am-1:42 pm

1 stop5h 57m

Knoxville McGhee Tyson

Wed 10/15

5:44 am-8:32 am

1 stop3h 48m

$209

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Tue 10/7

6:00 am-1:42 pm

1 stop6h 42m

Knoxville McGhee Tyson

Thu 10/16

12:47 pm-6:25 pm

1 stop6h 38m

$209

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 9/20

7:55 pm-10:45 pm

Nonstop1h 50m

Knoxville McGhee Tyson

Mon 9/29

7:00 am-7:55 am

Nonstop1h 55m

$210

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 $219. If you aren’t able to travel during the month of September, then book flights to Knoxville from Illinois during January instead. Flights to Knoxville in January, while not as cheap as those in September, still average around $241.

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

The cheapest day to depart from Illinois to Knoxville is on a Wednesday. Travelers who choose to depart for Knoxville on a Wednesday 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 $313.

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 $263. 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 morning when prices are around $291.

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 $300 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 $243 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

$52

Fastest flight time

1h 24m

Direct flights

Every day

Airports in Knoxville

1 airport
The best one-way flight to Knoxville from Illinois in the past 72 hours is $52. The best round-trip flight deal from Illinois to Knoxville found on momondo in the last 72 hours is $88.
The fastest flight from Illinois to Knoxville takes 1h 24m
Direct flights go from Illinois to Knoxville every day.
There is 1 airport near Knoxville: 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 $74Free CancellationRating
7.2
702 reviews
Search Allegiant Air flights
American AirlinesPriceFrom $179Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
DeltaPriceFrom $188Free CancellationRating
7.9
7,977 reviews
Search Delta flights
United AirlinesPriceFrom $189Free CancellationRating
7.4
8,944 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
Crossville
Maryville
Murphy
Newport
Alcoa
Lenoir City
Oak Ridge
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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