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Find cheap flights from Knoxville to Illinois from $46

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Knoxville to Illinois departing on 6/24. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
0 bags
Sat 5/25
Sat 6/1

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Best Illinois Flight Deals

Cheapest round-trip prices found by our users on KAYAK in the last 72 hours

Chicago
Chicagononstop$85
Moline
Moline1 stop$360
Peoria
Peoria1 stop$273
Bloomington
Bloomington1 stop$438
St. Louis
St. Louis1 stop$194

Good to know

Low season

January

High season

December

Cheapest flight

$46
Best time to beat the crowds with an average 18% drop in price.
Most popular time to fly with an average 10% increase in price.
Flight from Knoxville to Chicago Midway Airport

FAQs - booking Illinois flights

  • How does KAYAK find such low prices on flights from Knoxville to Illinois?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Knoxville to Illinois.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Knoxville to Illinois?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Illinois from Knoxville is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Knoxville to Illinois?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Illinois with an airline and back to Knoxville with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Knoxville to Illinois?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Illinois from Knoxville up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

See more FAQs

Top tips for finding cheap flights to Illinois

  • Looking for a cheap flight? 25% of our users found tickets from Knoxville to the following destinations at these prices or less: Chicago $280 one-way - $418 round-trip
  • Morning departure is around 23% more expensive than an evening flight, on average*.
*Average of the lowest prices shown in KAYAK’s search results for departures within the next 30 days

Top 5 airlines serving from Knoxville to Illinois

 
Need help choosing which airline to fly with from Knoxville to Illinois? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
8.0
DeltaOverall score based on 10975 reviews
7.9comfort
7.4food
8.2boarding
8.6crew
8.0entertainment
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

Made the Atlanta to Pittsburgh trip many times, with Delta no issues

I always fly with Delta. My friends tell me their horror stories of flying with other airlines. I just smile and say, “You should fly Delta”

I'm a larger, athletic guy (6'2", 260lbs powerlifter) and I found the seats incredibly uncomfortable with minimal leg room, especially in a window seat. Now, I full understand that being smaller may change my view but even if I was 80lbs less, my legs would be the same size and I was sandwiched between my seat and the seat in front of me.

Horrible. This was not first class. This was a connecting flight whi h was late. My original flight never came. I hated the fact that delta gave me a connecting flight from New York to Orlando Florida. No meals and the television screens were not working. There wasn't even any power to charge your phones. This is NOT FIRST CLASS DELTA!!! Do better next time!

This flight was ridiculous. I had to have a connecting flight from New York to orlando Florida??? The flight left late and because it was a short flight there was no first class amenities. I had one alcohol drink. The flight crew was fine, but it sure did not feel like first class. Delta to me dropped the ball by giving me a connecting flight. By the time we got to Raleigh we would have missed the next flight. Lucky for me the flight never came so now I was stuck waiting for a later flight that came in late also.

Our flight was delayed in Atlanta. The staff could have gave us an explanation for the delay and how long it would be.

I liked the ease of checking in, luggage check in, wheel chair assistance, boarding and flight.

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive. I also upgraded to comfort + , I didn’t feel it was worth it. There was no benefit

On my way home I had a layover. The flight from ATL to CLT was amended 5x while I was waiting. I could have driven home sooner. Overall from Dallas, Tx to Charlotte, NC I started my trip at 4:30pm, I didn’t get home until past midnight. I know things happen, but 5x to make me run back and forth in an airport from different terminals is excessive.

More facilities to transport to the gates......felt too much walking distance

Just happy I flew Qatar Airways awesome no wonder they are #1 in the world right now! The food was just delicious, very courteous, professional crew.

It was good no problems made it on time for the next flight overseas!

It was a really long flight from Doha to Philadelphia and it was overall a good one. The one area that I would comment on is that there is a lot of single-use plastic and disposables in the meal service for American Airlines. It would be great to see more circular options in the meal service to reduce the amount of waste.

Suddenly Flight has been change by Qatar and there’s no information is there of us from Bom to Doha and counter person is behaving like Qatar owner next I will not buy Qatar and I will not suggest anyone to fly in Qatar

The crew was fantastic and the over flight was perfect as well.

They shld provide food. Between food they are giving 10 hours gap which is toooo much

The crew was great and the food and liquor offerings were good. Seats were a bit cramped. Flight arrived early at destination. That's a plus.

All over with Qatar airlines my experience was really bad due to delays and then putting me on different airlines and after 8 hours of wait I had to listen to their is no plane to fly for another 24 hours. Wore experience ever.

I had already opted for Vegan food before 2 months yet they say we have no record for it,

The delays (5 hrs) were a comedy of errors, and the multiple safety issues encountered were very concerning.

The flight was delayed instead of leaving at 11 it left at 12.20

United WiFi is consistently unusable (it can take 10 mins to load a single web page). If you need Wifi to do work, be prepared to lose half a day of productivity.

Good movies, iffy pay WiFi, food ok- on time though and that was great!

Awful…flight was delayed more than 12hrs, missed all connections to Fort Wayne, IN, had to get flight to another city 2 hours from my destination, flight was again delayed by 40 mins because they did not have enough fuel, again missed a connection, finally arrived in Indiana at 11pm…but before my 2 hour drive home, ay, no Five That Our Luggage Never Made On The plane and Still In Chicago

Boarding was friendly and quick. While the plane model was older with no live tv, the entertainment was full of movies and tv shows. All food was available. Pilots were very communicative with status of the flight. Flight landed on time.

Flight was delayed by over an hour and gate checked bags took 15 minutes to be delivered to the jet bridge.

The Palm Springs to Chicago O’Hare was on Time and Palm Springs airport is easier navigate. As our connection was only an approximately 50 minutes, we asked staff for insights for the Chicago airport in terms of transferring into the other terminal from which our flight left, and they were unhelpful. However, the United App was very helpful in terms of notifications and even providing directions. The Chicago to Detroit flight was significantly delayed which we all know does happen. However, there were very few updates or notifications as to why this was happening when we would actually arrive. It took nearly 30 minutes for bags to make it to baggage claim. We arrived nearly 1 hour late on a 40 minute flight.

Flight cancelled due to fog. No other flights available for 36 hours. Directed by United to book passage on another carrier, and submit receipts for reimbursement. Did that. United now states they will not reimburse. Currently out 2 grand.

The flight was delayed by 4 hours !!!!! It was very uncomfortable , and they told us only one our before departure

This flight is frequently delayed. The connections seemingly are more frequently delayed. I’ve missed connections as a result twice on the same route to charlotte then Charleston. Final destination arrival has been the next day, twice in a row. No pilots, no crew. Too many excuses. Unfortunately, my days with American are over.

Entertainment was okay not because anything was wrong but it is a short flight so having no wifi is annoying but understandable. Crew was outstanding as usual

Those seats were way too narrow. I had the middle seat, one person was a very skinny person and we still couldn’t avoid touching each other anytime one of us moved. The other person was larger and we were basically sitting in each others lap the entire flight. There was zero entertainment. The flight was long enough to justify tvs, but no. Gotta sit there in your infant seat and twiddle your thumbs.

Flight was fine. It took an unusually long time to have baggage delivered to the carousel in ORD.

Average - flew with Jet Blue internal and it was far more comfortable and better food and entertainment. Notable difference

The flight got canceled due to mechanical issues, and he to be rebooked and missed my appointments for that day

The flight was scheduled to depart DCA at 12:30 pm but was delayed twice on the ground so that we were finally scheduled to depart at around 4:00 pm. Once we boarded, it was announced that takeoff would be delayed again to fix a hydraulic problem which delayed our eventual takeoff until around 5:00 pm. Once we departed, it was a smooth flight back to ORD. We did not get any explanation about what caused the original significant delay. In my experience, this happens frequently with AA.

The only problem experienced was a ground stop in Chicago due to weather. But the crew handled everything professionally. They prioritized rebooking those passengers who had connecting flights and then deplaning the other passengers. When the hold was lifted, they efficiently re-boarded all the passengers so that we could depart before our departure limit expired.

Our second leg to Jackson WY was unable to land due to weather. We were flown back to Dallas after stopping in SLC. We were given hotel rooms and vouchers. We were told that we would be back on the same plane in the morning. Instead we were given a different flight with different seats. Not a good experience. No one knew what was going on.

Turn on the heat. Flight was way too cold from Arizona to Chicago.

I purchased a carry on bag online…was supposed to cost $72 but after a whole slew of bs charges, the total was over $175.00. Because of these hidden charges, I will not even consider flying Frontier ever again. It’s just not worth the hassle. I’m scratching this company off my list forever.

Flight was OK. Seats were good no cell phone charges on the plane no TVs or entertainment.

There were 3 leg for the trip and each leg was delayed by 90 minutes or more. The boarding process takes forever with people waiting on the jetway even though most folks do not have carry-on. The whole process is poorly managed.

Flight cancelled and was told by a rude gate agent that they don’t accommodate on other airlines. Had to wait 5 hours for a connecting flight that had a 7 hour layover. Would not allow bags to be checked early so we couldn’t go through security .Had to rent a car for the afternoon to store bags and get a meal. Also incurred a hotel fee. No apology or reason given for the cancellation- just rudeness.

They cancelled the flight then did nothing to help us rebook. It was awful - I won’t fly with them again

The process of buying the ticket and navigating all the hidden charges that Frontier throws at you was a terrible experience. The actual airport experience and flying was fine.

The truck that was refueling the plane drove away with the hose still connected to the plane and ripped part of the plane off with it

Not have to pay for every single item to take a flight. Seating and delays sucked.

Flight was cancelled and I had to spend the night in the airport lugging my suitcase around

If you don’t check in 24 hours in advance, they will charge you $110 to check your bag instead of the $30. I did not get an email with this information and did not check in. In addition, my flight home was cancelled at layover and I had to spend the night in the airport, and then have another layover at another airport before making it home. Will not fly frontier again.

Book cheap flights from Knoxville to Illinois

Recent round-trip flight deals

6/14Fri
nonstopAllegiant Air
1h 34mTYS-MDW
6/17Mon
nonstopAllegiant Air
1h 25mMDW-TYS
$85
5/19Sun
1 stopFrontier
20h 28mTYS-MDW
5/21Tue
1 stopFrontier
9h 54mMDW-TYS
$110
9/7Sat
nonstopAmerican Airlines
1h 59mTYS-ORD
9/11Wed
nonstopAmerican Airlines
1h 48mORD-TYS
$169
9/7Sat
1 stopAmerican Airlines
7h 06mTYS-ORD
9/11Wed
nonstopAmerican Airlines
1h 43mORD-TYS
$177
8/17Sat
nonstopUnited Airlines
1h 58mTYS-ORD
8/18Sun
1 stopUnited Airlines
4h 55mORD-TYS
$178
5/9Thu
nonstopUnited Airlines
2h 00mTYS-ORD
5/12Sun
nonstopUnited Airlines
1h 46mORD-TYS
$179
8/16Fri
1 stopDelta
5h 04mTYS-ORD
8/31Sat
1 stopDelta
5h 15mORD-TYS
$188
5/11Sat
1 stopDelta
6h 12mTYS-ORD
5/14Tue
1 stopDelta
3h 31mORD-TYS
$198
5/19Sun
2 stops
23h 40mTYS-ORD
5/22Wed
3 stops
31h 42mORD-TYS
$492
5/23Thu
2 stops
22h 57mTYS-ORD
5/30Thu
2 stops
14h 00mORD-TYS
$531

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Recent one-way flight deals

6/24Mon
nonstopAllegiant Air
1h 34mTYS-MDW
$46
6/24Mon
nonstopAllegiant Air
1h 34mTYS-MDW
$52
5/19Sun
1 stopFrontier
20h 28mTYS-MDW
$69
5/19Sun
1 stopFrontier
28h 01mTYS-ORD
$69
8/14Wed
1 stopDelta
6h 53mTYS-STL
$99
7/20Sat
1 stopAmerican Airlines
6h 45mTYS-ORD
$194
5/22Wed
nonstopUnited Airlines
1h 54mTYS-ORD
$205
6/24Mon
nonstopAmerican Airlines
1h 57mTYS-ORD
$210
7/20Sat
1 stopDelta
6h 46mTYS-MDW
$214
6/27Thu
nonstopUnited Airlines
1h 58mTYS-ORD
$235

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Last minute flights from Knoxville to Illinois

Last minute flight, train and bus deals

4/29Mon
multi-stopFrontier
25h 47mTYS-MDW
5/6Mon
multi-stopFrontier
15h 04mMDW-TYS
$217
4/29Mon
multi-stopFrontier
15h 05mTYS-ORD
5/6Mon
multi-stopFrontier
22h 23mORD-TYS
$217
4/28Sun
multi-stopFrontier
18h 01mTYS-ORD
5/1Wed
multi-stopFrontier
21h 58mORD-TYS
$237
4/26Fri
multi-stopAmerican Airlines
4h 18mTYS-STL
4/28Sun
multi-stopAmerican Airlines
6h 04mSTL-TYS
$261
4/26Fri
multi-stopAmerican Airlines
5h 56mTYS-ORD
4/30Tue
nonstopAmerican Airlines
1h 45mORD-TYS
$272
4/26Fri
multi-stopAmerican Airlines
4h 47mTYS-ORD
4/30Tue
multi-stopAmerican Airlines
4h 34mORD-TYS
$280
4/26Fri
multi-stopDelta
4h 24mTYS-MDW
4/30Tue
multi-stopDelta
5h 55mMDW-TYS
$358
4/29Mon
nonstopUnited Airlines
1h 57mTYS-ORD
5/6Mon
nonstopUnited Airlines
1h 53mORD-TYS
$419
4/29Mon
multi-stopUnited Airlines
5h 06mTYS-ORD
5/6Mon
multi-stopUnited Airlines
14h 56mORD-TYS
$611
4/28Sun
multi-stopDelta
4h 24mTYS-MDW
5/1Wed
multi-stopDelta
4h 07mMDW-TYS
$798

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Knoxville - Illinois Flights

Departure:

Knoxville (TYS)United States

Return flight deals:

Illinois - Knoxville

Cabin classes:

$1,040
$761
$1,038
$61