How many flights depart from Knoxville to Illinois on average per day?

As of June 2026, there are 31 flights per day flying from Knoxville to Illinois. The most common time of day flights depart is 1:00PM, with 43% of flights taking off in the afternoon.

How many flights depart from Knoxville to Illinois on average per week?

As of June 2026, 217 flights take off from Knoxville and land in Illinois each week. The most common flight departure day for this route is Thu, with 16% of weekly flights taking off on this day.

What airlines fly to Illinois?

United Airlines, American Airlines and Delta are the top three most popular airlines that fly to Illinois from Knoxville according to our data. United Airlines is the first choice among our users, with 45% of people opting to fly with this airline when traveling to Illinois. Keep in mind that there are 4 different airlines that fly to Illinois on a routine basis, so you have a few additional options to choose from.

What is the cheapest airline that flies from Knoxville McGhee Tyson to Illinois?

Frontier, Southwest, and United Airlines are the most popular carriers operating from Knoxville McGhee Tyson to Illinois

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?

There are 4 operators available for flights from Knoxville McGhee Tyson Airport to Illinois as of June 2026.

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.

$60 Cheap Flights from Knoxville to Illinois in 2026

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Knoxville to Illinois

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:22 pm - 1:58 pm

TYS

MDW

1h 36mnonstop

2:48 pm - 5:18 pm

MDW

TYS

1h 30mnonstop

$149Allegiant Air

Thu, Jul 30 - Sun, Aug 2

1:22 pm - 1:58 pm

TYS

MDW

1h 36mnonstop

2:48 pm - 5:18 pm

MDW

TYS

1h 30mnonstop

$159Allegiant Air

Thu, Jul 23 - Sun, Jul 26

8:00 am - 11:14 pm

TYS

ORD

16h 14m

1 stop

7:55 am - 1:04 pm

ORD

TYS

28h 09m

1 stop

$225Multiple Airlines

Thu, Aug 20 - Fri, Aug 28

1:21 pm - 11:14 pm

TYS

ORD

10h 53m

1 stop

5:30 pm - 2:59 pm

ORD

TYS

20h 29m

1 stop

$227Multiple Airlines

Thu, Aug 20 - Tue, Aug 25

6:00 am - 6:59 am

TYS

ORD

1h 59mnonstop

5:55 pm - 8:44 pm

ORD

TYS

1h 49mnonstop

$249United Airlines

Thu, Jul 2 - Thu, Jul 9

6:43 pm - 7:59 pm

TYS

ORD

2h 16mnonstop

8:05 am - 10:58 am

ORD

TYS

1h 53mnonstop

$250American Airlines

Thu, Jun 25 - Sun, Jun 28

5:45 pm - 6:55 pm

TYS

ORD

2h 10mnonstop

5:55 pm - 8:44 pm

ORD

TYS

1h 49mnonstop

$259United Airlines

Fri, Jul 3 - Mon, Jul 6

8:19 pm - 7:23 pm

TYS

STL

24h 04m

1 stop

8:08 pm - 7:24 pm

STL

TYS

22h 16m

1 stop

$259Frontier

Fri, Jul 17 - Tue, Jul 21

8:19 pm - 7:23 pm

TYS

STL

24h 04m

1 stop

8:08 pm - 7:24 pm

STL

TYS

22h 16m

1 stop

$282Frontier

Wed, Jul 22 - Sun, Jul 26

1:13 pm - 5:29 pm

TYS

BMI

5h 16m

1 stop

6:03 pm - 11:49 pm

BMI

TYS

4h 46m

1 stop

$334American Airlines

Wed, Jun 17 - Sat, Jun 27

American Airlines flights from Knoxville to Illinois

Our best American Airlines deals on Knoxville to Illinois flight tickets

American Airlines

Jun 25

TYS6:43 pmKnoxville McGhee Tyson

2h 16m

ORD7:59 pmChicago O'Hare Intl

Jun 28

ORD8:05 amChicago O'Hare Intl

1h 53m

TYS10:58 amKnoxville McGhee Tyson

$250

American Airlines

Jun 18

TYS7:15 amKnoxville McGhee Tyson

2h 05m

ORD8:20 amChicago O'Hare Intl

Jul 5

ORD5:07 amChicago O'Hare Intl

4h 31m

1 stop

TYS10:38 amKnoxville McGhee Tyson

$274

American Airlines

Jun 25

TYS6:43 pmKnoxville McGhee Tyson

2h 16m

ORD7:59 pmChicago O'Hare Intl

Jun 28

ORD5:10 amChicago O'Hare Intl

4h 26m

1 stop

TYS10:36 amKnoxville McGhee Tyson

$275

United Airlines flights from Knoxville to Illinois

Our best United Airlines deals on Knoxville to Illinois flight tickets

United Airlines

Jul 2

TYS6:00 amKnoxville McGhee Tyson

1h 59m

ORD6:59 amChicago O'Hare Intl

Jul 9

ORD5:55 pmChicago O'Hare Intl

1h 49m

TYS8:44 pmKnoxville McGhee Tyson

$249

United Airlines

Jul 3

TYS5:45 pmKnoxville McGhee Tyson

2h 10m

ORD6:55 pmChicago O'Hare Intl

Jul 5

ORD6:55 amChicago O'Hare Intl

1h 48m

TYS9:43 amKnoxville McGhee Tyson

$259

United Airlines

Jul 3

TYS5:45 pmKnoxville McGhee Tyson

2h 10m

ORD6:55 pmChicago O'Hare Intl

Jul 5

ORD5:59 pmChicago O'Hare Intl

1h 49m

TYS8:48 pmKnoxville McGhee Tyson

$260

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Quickest round-trip

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 7/30

1:22 pm-1:58 pm

Nonstop1h 36m

Chicago Midway

Sun 8/2

2:48 pm-5:18 pm

Nonstop1h 30m

$149

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 7/23

1:22 pm-1:58 pm

Nonstop1h 36m

Chicago Midway

Sun 7/26

2:48 pm-5:18 pm

Nonstop1h 30m

$159

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 8/20

8:00 am-11:14 pm

1 stop16h 14m

Chicago O'Hare Intl

Fri 8/28

7:55 am-1:04 pm

1 stop28h 09m

$225

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 8/20

1:21 pm-11:14 pm

1 stop10h 53m

Chicago O'Hare Intl

Tue 8/25

5:30 pm-2:59 pm

1 stop20h 29m

$227

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 7/2

6:00 am-6:59 am

Nonstop1h 59m

Chicago O'Hare Intl

Thu 7/9

5:55 pm-8:44 pm

Nonstop1h 49m

$249

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 6/25

6:43 pm-7:59 pm

Nonstop2h 16m

Chicago O'Hare Intl

Sun 6/28

8:05 am-10:58 am

Nonstop1h 53m

$250

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Fri 7/3

5:45 pm-6:55 pm

Nonstop2h 10m

Chicago O'Hare Intl

Mon 7/6

5:55 pm-8:44 pm

Nonstop1h 49m

$259

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Fri 7/17

8:19 pm-7:23 pm

1 stop24h 04m

Lambert-St Louis

Tue 7/21

8:08 pm-7:24 pm

1 stop22h 16m

$259

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 7/22

8:19 pm-7:23 pm

1 stop24h 04m

Lambert-St Louis

Sun 7/26

8:08 pm-7:24 pm

1 stop22h 16m

$282

KnoxvilleBloomington

TYS - BMI

TYSBMI

Knoxville McGhee Tyson

Wed 6/17

1:13 pm-5:29 pm

1 stop5h 16m

Bloomington-Normal

Sat 6/27

6:03 pm-11:49 pm

1 stop4h 46m

$334

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Other information

What is the cheapest month to fly to Illinois?

The cheapest month to fly to Illinois from Knoxville is in November. Flight prices, which tend to average around $48, 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 November, then flying in September is also cheap. Prices for this month can be found on momondo for an average of $49.

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 $371. Flights from Knoxville to Illinois on a Sunday will generally be more expensive and average around $735. 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 $490. Flights in the evening are often more expensive with an average ticket price of $624.

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

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

How far in advance should I book a flight from Knoxville 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 $296 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 $193 on momondo.

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

There are 4 cabin classes available to choose from on Knoxville 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	$98
Fastest flight time	1h 34m
Direct flights	Mon, Tue, Thu, Fri, Sat and Sun
Airports in Illinois	98 airports

The best one-way flight to Illinois from Knoxville in the past 72 hours is $98. The best round-trip flight deal from Knoxville to Illinois found on momondo in the last 72 hours is $106.

The fastest flight from Knoxville to Illinois takes 1h 34m

Direct flights go from Knoxville to Illinois on Monday, Tuesday, Thursday, Friday, Saturday and Sunday. Airlines offering direct flights are: United Airlines and Allegiant Air.

There are 98 airports in Illinois. From Knoxville there are direct flights to Chicago O'Hare Intl (ORD), Chicago Midway (MDW).

Search flight deals

Frequently asked questions about flying from Knoxville to Illinois

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?
There are 4 operators available for flights from Knoxville McGhee Tyson Airport to Illinois as of June 2026.
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?
Based on momondo bookings for flights between Knoxville and Illinois, the leading plane model is Canadair (Bombardier) Regional Jet 700, making up 20.15% of the total bookings. Other popular models include Canadair (Bombardier) Regional Jet CRJ-550 with 19.50%, Airbus A319 with 13.89%, and Embraer 175 (Enhanced Winglets) with 10.58%.

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 Air	PriceFrom $60	Free Cancellation	Rating 7.3 705 reviews	Search Allegiant Air flights
United Airlines	PriceFrom $189	Free Cancellation	Rating 7.4 9,781 reviews	Search United Airlines flights
American Airlines	PriceFrom $189	Free Cancellation	Rating 7.1 11,645 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

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Start using Trips

Find my bookings

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

1 adult

Wed 7/8

Wed 7/15

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Illinois

Popular cities

Other flights from Knoxville

Other flights to Illinois

Airlines

Complete your trip

Feeling lucky

Popular cities in Illinois

Flights to New Yorkfrom $72

Flights to Los Angelesfrom $49

Flights to Orlandofrom $50

Flights to Miamifrom $79

Flights to Chicagofrom $56

Flights to San Franciscofrom $56

Flights to Las Vegasfrom $56

Flights to Washington, D.C.from $58

Flights to Bostonfrom $75

Flights to Atlantafrom $50

Flights to Fort Lauderdalefrom $46

Flights to Dallasfrom $50

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 7/9. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Knoxville to Illinois

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Cheap direct flights

American Airlines flights from Knoxville to Illinois

Our best American Airlines deals on Knoxville to Illinois flight tickets

United Airlines flights from Knoxville to Illinois

Our best United Airlines deals on Knoxville to Illinois flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Knoxville to Illinois that are best for you.

See travel insights to Illinois from

How to get the cheapest flight ticket from Knoxville to Illinois

What is the cheapest month to fly to Illinois?

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

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

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

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

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

Can stopping save me money on Knoxville to Illinois flights?

What is the cheapest airline that flies from Knoxville McGhee Tyson to Illinois?

What airlines fly to Illinois?

How many flights depart from Knoxville to Illinois on average per day?

How many flights depart from Knoxville to Illinois on average per week?

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

Fastest flight time

Direct flights

Airports in Illinois

Frequently asked questions about flying 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

Why use momondo?

An easier way to manage your Illinois trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Illinois

Popular cities in Illinois

Popular flights according to clicks in the last 7 days on momondo

Knoxville flight routes

According to popular flight searches on momondo this year

Illinois flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Illinois

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Complete your trip to Illinois

Explore popular destinations other users love

According to popular flight searches on momondo this year