Cheap flights from Illinois to Knoxville (TYS) from $49

This is the cheapest one-way flight price, found on 9/28. Prices may vary by date and flight preferences.
ORD — TYS
Oct 3 — Oct 101

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

When searching for a good deal, it’s best to be prepared for potential fluctuations in price. We recommend booking at least 25 days in advance, which can save you up to 43% on flights from Illinois to Knoxville compared to booking the week you need them. Waiting 25 days out may not be for everyone, so we have options available for flights within the next two weeks, with the lowest price starting at $291. For sooner than that we have options available in the next 3 days from $386.

What is the cheapest month to fly from Illinois to Knoxville?

Our data shows that February tends to be the cheapest month to fly to Knoxville from Illinois. Users have commonly found prices around $271 for the month, but tickets can be as low as $175. Due to multiple factors, prepare for potentially higher prices in March.

When is the cheapest time to fly from Illinois to Knoxville (IL - TYS)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Knoxville as you normally would.

Cheap Allegiant Air flights from Illinois to Knoxville

Take a peek at the cheapest Allegiant Air flights we've detected traveling from Illinois to Knoxville. Come back soon if you're not finding the exact deal you're looking for.

Cheap Delta flights from Illinois to Knoxville

Have a look at some of the cheapest available Delta flights departing from Illinois and landing in Knoxville. Make sure to examine the flight information before completing your reservation.

Cheap Illinois to Knoxville flights in September & October 2023

The best prices found for Illinois to TYS flights for September, October
Listed are some of the best fares we've found on flights departing from Illinois to Knoxville in 2023. For more flight deals, be sure to check back very soon.

Illinois to Knoxville 2023 flight deals

Cheap flights to Knoxville from Illinois found for this year
Listed are some of the best fares we've found on flights departing from Illinois to Knoxville in 2023. For more flight deals, be sure to check back very soon.

Non-stop flights to Knoxville from Illinois

Save time with Illinois to Knoxville direct flight deals
For a shorter flight, select one of these non-stop flights from Illinois to Knoxville. Users seeking other options on flights from Illinois to Knoxville should update the search form at the top of the page.

Illinois to Knoxville flights leaving soon

Late deals on return flights to Knoxville from Illinois, departing today and this week
Users seeking a last-minute flight from Illinois to Knoxville should consider booking one of these fares. Users should be sure to double check the price, date, and time of their last-minute flight.

One-way flights to Knoxville from Illinois

The cheapest one-way flights from Illinois to Knoxville
If you're seeking multiple options on one-way flights from Illinois to Knoxville, be sure to check out these deals, which are updated often. Users needing a return flight from Illinois to Knoxville should utilize the search form above.

Find flights from Illinois to Knoxville within your budget

Use the slider to find flights from Illinois to Knoxville that fit your budget.

Fly from

Any airport

Fly to

Any airport

Budget

$104 - $195

Route

Depart

Return

Price

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Mon 10/23

Nonstop1h 24m

Knoxville McGhee Tyson

Fri 10/27

Nonstop1h 33m

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Mon 10/30

Nonstop1h 24m

Knoxville McGhee Tyson

Mon 11/6

Nonstop1h 35m

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 10/27

Nonstop1h 24m

Knoxville McGhee Tyson

Fri 11/3

Nonstop1h 35m

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 10/27

Nonstop1h 24m

Knoxville McGhee Tyson

Mon 10/30

Nonstop1h 33m

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Fri 11/10

Nonstop1h 39m

Knoxville McGhee Tyson

Sat 11/11

Nonstop2h 03m

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Wed 10/25

1 stop9h 35m

Knoxville McGhee Tyson

Mon 10/30

Nonstop1h 33m

Chicago MidwayKnoxville McGhee Tyson

MDW - TYS

MDWTYS

Chicago Midway

Fri 12/8

1 stop12h 14m

Knoxville McGhee Tyson

Mon 12/11

1 stop26h 22m

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Wed 10/25

1 stop6h 20m

Knoxville McGhee Tyson

Sat 10/28

1 stop4h 17m

Chicago O'Hare IntlKnoxville McGhee Tyson

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sun 10/8

Nonstop1h 37m

Knoxville McGhee Tyson

Fri 10/13

Nonstop1h 57m

Flights are sorted by cheapest first

Deals found on 9/27

Reviews of airlines servicing Knoxville

See what other customers who have flown with Allegiant Air, Delta and United Airlines from Illinois to Knoxville have to say. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

Delta
7.9
Good
3,023 reviews
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

Allegiant Air
7.5
Good
103 reviews
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

United Airlines
7.4
Good
1,890 reviews
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

American Airlines
7.2
Good
2,635 reviews
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

WestJet
7.2
Good
918 reviews
Delta
7.9
Good
3,023 reviews

Comfort

7.9

Crew

8.5

Entertainment

7.8

Food

7.2

Overall

7.9

Boarding

8.0

Reviews

1 / 10

Although I adhered to 17.7 lbs for carry-on and complied with dimensions of personal item for ITA, I felt very restricted compared to other travelers.

Related info for your journey

Useful info, stats and facts about Illinois to Knoxville flights.

What airport do you fly into for flights to Knoxville from Illinois?

Knoxville McGhee Tyson (TYS), located 11.3 mi from the city center, is the airport you fly into when you book flights from Illinois to Knoxville.

Can I find flights from Illinois to Knoxville for under $200 on Cheapflights?

Yes, there are multiple flights from Illinois to Knoxville for under $200. The cheapest flight booked recently is on Allegiant Air for just $104, but on average you can expect to pay $150.

Are there nonstop flights from Illinois to Knoxville for under $200 on Cheapflights?

Cheapflights has at least 20 direct flights from Illinois to Knoxville under $200. A good price for a nonstop flight from Illinois to Knoxville is less than $181.

Are there last-minute flights available from Illinois to Knoxville for under $200?

There are currently 20+ open flights from Illinois to Knoxville within the next 7 days for less than $200.

What days are nonstop flights available from Illinois to Knoxville?

Nonstop flights can be found on the following days: Monday, Tuesday, Thursday, Friday.

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

19 flight departures from Illinois to Knoxville per day on average.
Morning (6am - Noon) - 11% of flight departures
Afternoon (Noon - 6pm) - 58% of flight departures
Evening (6pm - Midnight) - 32% of flight departures

How long is the flight from Illinois to Knoxville?

A quick flight from Illinois to Knoxville can take about 1h 24m. Allegiant Air provides one of the quickest options available for as low as $104. The distance between Illinois and Knoxville is about 477 mi. Both multi-stop and nonstop flights can be found to your destination and back.

What are the cheapest airlines to fly from Illinois to Knoxville one-way?

The cheapest airlines for a one-way flight from Illinois to Knoxville are Allegiant Air ($49), Frontier ($70), and American Airlines ($111).

What are the most popular routes from Illinois to Knoxville?

What are the most popular airlines that fly from Illinois to Knoxville?

What are the most reliable airlines from Illinois to Knoxville?

No one likes to see their flight delayed. When booking a flight from Illinois to Knoxville consider choosing Republic Airways (100%), Lufthansa (84%) or Air Wisconsin (83%) as they are the most reliable in getting you off to your destination on time.

What are the cheapest flights from Illinois to Knoxville?

While on average a flight from Illinois to Knoxville is generally $278, our data shows the cheapest flight currently is $157. When looking at the most popular route, (Chicago O'Hare Intl - Knoxville McGhee Tyson), you can expect to pay $167 for that flight.

What does ORD to TYS mean?

This is defined as Chicago O'Hare Intl Airport (ORD) and Knoxville McGhee Tyson Airport (TYS). Codes like Knoxville McGhee Tyson Airport are often used to just call airports uniquely. This flight route has multiple associated airports, so we think it might be helpful to learn the name and codes of them as well. They are Chicago Midway Airport (MDW), Moline Quad-City Airport (MLI), Greater Peoria Airport (PIA), Bloomington-Normal Airport (BMI), Champaign University-Willard Airport (CMI).

Departure points for flights from Illinois to Knoxville

Select to see more specific information for flights to Knoxville from all departure points in Illinois

Top 4 airlines flying from Illinois to Knoxville

The chart below displays the airlines Cheapflights users traveling from Illinois to Knoxville choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$63Average$115FlexibilityNo cancel feeOn-time88%
Search Allegiant Air flights
DeltaCheapest$158Average$359FlexibilityNo cancel feeOn-timeN/A
Search Delta flights
American AirlinesCheapest$168Average$374FlexibilityNo cancel feeOn-time71%
Search American Airlines flights
United AirlinesCheapest$173Average$376FlexibilityNo cancel feeOn-time69%
Search United Airlines flights

Hourly flight availability from Illinois to Knoxville

See what time of day planes typically take off from Illinois to Knoxville
1%of flight departuresEarly morningMidnight to 6 am
24%of flight departuresMorning6 am to noon
16%of flight departuresAfternoonNoon to 6 pm
59%of flight departuresEvening6 pm to midnight
Midnight
6 AM
Noon
6 PM

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How does Cheapflights help users find flights from Illinois to Knoxville?

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Why should you use Cheapflights to find cheap flight tickets from Illinois to Knoxville?

Cheapflights simply makes it quick and affordable to book flights from Illinois to Knoxville by bringing together all flight options from hundreds of airlines and agencies online — and put it in one place for you to choose from. Plus, Cheapflights is 100% free to use for all.

Can Cheapflights find flights from Illinois to Knoxville with no change fees?

Yes, we can. To see specific flights from Illinois to Knoxville with no change fees, users can toggle flexible booking options after using the search form above to find flights.

Can Cheapflights notify me if prices for flights from Illinois to Knoxville become cheaper?

Yes, and it’s super simple to set up. Perform a flight search above and use a valid email address to enable the Price Alert feature. That’s it!

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