How long does it take to fly to Knoxville?

Average flight duration from Illinois to Knoxville depends on which airport you fly into and out of. Flying from Chicago to Knoxville is 1h 31m on average, while flying from Moline to Knoxville is 3h 59m on average. Knoxville is the most popular airport in Knoxville.

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

166 flights are operational weekly from Illinois to Knoxville as of July 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

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

The number of flights available between Illinois and Knoxville is 23 per day as of July 2025. The most frequent departure time is 2:00PM, with 37% of daily flights leaving in the evening.

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

Allegiant Air, Frontier, and Delta are the most popular carriers operating from Illinois to Knoxville McGhee Tyson

What airlines fly to Knoxville?

American Airlines, United Airlines and Allegiant Air are the top three most popular airlines that fly to Knoxville from Illinois according to our data. American Airlines is the first choice among our users, with 51% of people opting to fly with this airline when traveling to Knoxville. Keep in mind that there are 4 different airlines that fly to Knoxville on a routine basis, so you have a few additional options to choose from.

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?

There are 4 operators available for flights from Illinois to Knoxville McGhee Tyson Airport as of July 2025.

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.

$44 Cheap Flights from Illinois to Knoxville in 2025

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Find the cheapest flights from Illinois to Knoxville

Round-trip

One-way

Last minute

Direct

Cheap round-trip flights

2:46 pm - 5:12 pmMDW-TYS

1h 26mnonstop

1:31 pm - 2:04 pmTYS-MDW

1h 33mnonstop

$70Allegiant Air

Find Deal

Mon, Aug 4 - Mon, Aug 18

2:54 pm - 5:22 pmMDW-TYS

1h 28mnonstop

1:31 pm - 2:04 pmTYS-MDW

1h 33mnonstop

$76Allegiant Air

Find Deal

Fri, Aug 15 - Mon, Aug 18

9:40 am - 12:26 pmORD-TYS

1h 46mnonstop

4:53 pm - 5:54 pmTYS-ORD

2h 01mnonstop

$188American Airlines

Find Deal

Wed, Aug 27 - Wed, Sep 3

1:55 pm - 4:36 pmORD-TYS

1h 41mnonstop

7:55 am - 9:00 amTYS-ORD

2h 05mnonstop

$189American Airlines

Find Deal

Sat, Aug 9 - Wed, Aug 13

5:40 am - 4:29 pmORD-TYS

9h 49m1 stop

5:25 pm - 12:32 amTYS-ORD

8h 07m1 stop

$194Frontier

Find Deal

Sun, Aug 10 - Sun, Aug 17

6:56 am - 8:47 pmORD-TYS

12h 51m1 stop

6:00 am - 4:10 pmTYS-ORD

11h 10m1 stop

$198

Find Deal

Fri, Aug 15 - Mon, Aug 18

7:52 pm - 10:37 pmORD-TYS

1h 45mnonstop

7:25 pm - 11:15 pmTYS-ORD

4h 50m1 stop

$199United Airlines

Find Deal

Fri, Aug 15 - Fri, Aug 22

7:50 pm - 10:35 pmORD-TYS

1h 45mnonstop

7:00 am - 7:57 amTYS-ORD

1h 57mnonstop

$203United Airlines

Find Deal

Thu, Aug 7 - Mon, Aug 11

10:00 am - 11:37 pmORD-TYS

12h 37m1 stop

8:52 am - 9:30 pmTYS-ORD

13h 38m2 stops

$211

Find Deal

Sun, Aug 10 - Mon, Aug 11

7:55 pm - 7:41 pmSTL-TYS

22h 46m1 stop

8:26 pm - 9:06 amTYS-STL

13h 40m1 stop

$281Frontier

Find Deal

Sun, Sep 7 - Thu, Sep 11

Allegiant Air flights from Illinois to Knoxville

Our best Allegiant Air deals on Illinois to Knoxville flight tickets

Allegiant Air

Aug 4

MDW2:46 pmChicago Midway

1h 26m

TYS5:12 pmKnoxville McGhee Tyson

Aug 18

TYS1:31 pmKnoxville McGhee Tyson

1h 33m

MDW2:04 pmChicago Midway

$70

Find similar

Allegiant Air

Aug 15

MDW2:54 pmChicago Midway

1h 28m

TYS5:22 pmKnoxville McGhee Tyson

Aug 18

TYS1:31 pmKnoxville McGhee Tyson

1h 33m

MDW2:04 pmChicago Midway

$76

Find similar

Allegiant Air

Sep 26

MDW7:50 pmChicago Midway

1h 31m

TYS10:21 pmKnoxville McGhee Tyson

Sep 29

TYS1:50 pmKnoxville McGhee Tyson

1h 36m

MDW2:26 pmChicago Midway

$78

Find similar

United Airlines flights from Illinois to Knoxville

Our best United Airlines deals on Illinois to Knoxville flight tickets

United Airlines

Aug 15

ORD7:52 pmChicago O'Hare Intl

1h 45m

TYS10:37 pmKnoxville McGhee Tyson

Aug 22

TYS7:25 pmKnoxville McGhee Tyson

4h 50m

1 stop

ORD11:15 pmChicago O'Hare Intl

$199

Find similar

United Airlines

Aug 7

ORD7:50 pmChicago O'Hare Intl

1h 45m

TYS10:35 pmKnoxville McGhee Tyson

Aug 11

TYS7:00 amKnoxville McGhee Tyson

1h 57m

ORD7:57 amChicago O'Hare Intl

$203

Find similar

United Airlines

Jul 31

ORD7:50 pmChicago O'Hare Intl

1h 45m

TYS10:35 pmKnoxville McGhee Tyson

Aug 4

TYS7:00 amKnoxville McGhee Tyson

1h 57m

ORD7:57 amChicago O'Hare Intl

$207

Find similar

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

Prices

Airlines

Other information

What is the cheapest month to fly to Knoxville?

The month of August is, on average, the cheapest month to fly to Knoxville from Illinois, with most prices found around $212. If you aren’t able to travel during the month of August, then book flights to Knoxville from Illinois during September instead. Flights to Knoxville in September, while not as cheap as those in August, still average around $229.

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

The cheapest day to depart from Illinois to Knoxville is on a Friday. Travelers who choose to depart for Knoxville on a Friday will often find tickets for as low as $256. 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 $310.

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 $258. 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 $287.

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

Fly from Belleville 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 $294 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 $242 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	$44
Fastest flight time	1h 24m
Direct flights	Mon, Tue, Thu, Fri and Sat
Airports in Knoxville	1 airport

The best one-way flight to Knoxville from Illinois in the past 72 hours is $44. The best round-trip flight deal from Illinois to Knoxville found on momondo in the last 72 hours is $70.

The fastest flight from Illinois to Knoxville takes 1h 24m

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

There is 1 airport near Knoxville: Knoxville McGhee Tyson (TYS)

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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?
There are 4 operators available for flights from Illinois to Knoxville McGhee Tyson Airport as of July 2025.
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?
Based on momondo bookings for this flight route, the most popular plane model on flight routes from Illinois to Knoxville is Canadair (Bombardier) Regional Jet CRJ-550 (18.71% of total bookings). The next most popular plane models are Embraer 175 (Enhanced Winglets) (18.01%), Canadair (Bombardier) Regional Jet 700 (14.92%), and Embraer 175 (12.83%).

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 Air	PriceFrom $63	Free Cancellation	Rating 7.2 705 reviews	Search Allegiant Air flights
American Airlines	PriceFrom $174	Free Cancellation	Rating 7.2 10,000 reviews	Search American Airlines flights
United Airlines	PriceFrom $184	Free Cancellation	Rating 7.4 8,861 reviews	Search United Airlines flights
Delta	PriceFrom $188	Free Cancellation	Rating 8.0 7,956 reviews	Search Delta flights

Pigeon Forge

Gatlinburg

Cherokee

Bryson City

Morristown

Corbin

Crossville

Maryville

Murphy

Newport

Alcoa

Oak Ridge

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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Cheap flights from Illinois to Knoxville from $44

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 8/15. 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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Allegiant Air flights from Illinois to Knoxville

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United Airlines flights from Illinois to Knoxville

Our best United Airlines deals on Illinois to Knoxville flight tickets

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?

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

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

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

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

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

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.

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

Allegiant Air, Frontier, and Delta are the most popular carriers operating from Illinois to Knoxville McGhee Tyson

What airlines fly to Knoxville?

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

The number of flights available between Illinois and Knoxville is 23 per day as of July 2025. The most frequent departure time is 2:00PM, with 37% of daily flights leaving in the evening.

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

166 flights are operational weekly from Illinois to Knoxville as of July 2025. The most popular departure day for this route is Mon, with 17% of flights per week taking off on this day.

How long does it take to fly to Knoxville?

Average flight duration from Illinois to Knoxville depends on which airport you fly into and out of. Flying from Chicago to Knoxville is 1h 31m on average, while flying from Moline to Knoxville is 3h 59m on average. Knoxville is the most popular airport in 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

Fastest flight time

Direct flights

Airports in Knoxville

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

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?

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

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

Traveling to a place near Knoxville?

Why use momondo?

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

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

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

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

An easier way to manage your Knoxville 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 the United States

Airports servicing Tennessee