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$54+ Cheap flights from Illinois to Knoxville (TYS)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 1/23. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — TYS
Nov 26 — Dec 31
Tue 11/26
Tue 12/3
1 adult, Economy
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Cheap flight deals from Illinois to Knoxville

Discover tips and strategies to find the most affordable flight options for your journey from Illinois (USIL) to Knoxville (TYS). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 21, 2024.

Find flight deals from Illinois to Knoxville

Cheapest flights from Illinois to Knoxville
Explore the most affordable flight options available from Illinois to Knoxville. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 21, 2024.

This Mytrip deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/223:14 pmMDW - TYS
Nonstop1h 27mAllegiant Air
Mon 11/251:50 pmTYS - MDW
Nonstop1h 34mAllegiant Air
Deal found 11/20$160
This United Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/147:20 amORD - TYS
Nonstop1h 48mUnited Airlines
Wed 12/1810:50 amTYS - ORD
Nonstop2h 04mUnited Airlines
Deal found 11/20$169
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/117:05 amORD - TYS
1 stop3h 38mDelta
Mon 12/167:59 pmTYS - ORD
1 stop4h 59mDelta
Deal found 11/20$188
This Delta deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/1410:38 amMDW - TYS
1 stop3h 20mDelta
Mon 12/166:38 pmTYS - MDW
1 stop4h 28mDelta
Deal found 11/20$188
This American Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/148:23 amORD - TYS
Nonstop1h 46mAmerican Airlines
Thu 12/1911:39 amTYS - ORD
Nonstop1h 55mAmerican Airlines
Deal found 11/21$194
This Frontier deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:25 amORD - TYS
1 stop6h 51mFrontier
Sun 12/154:19 pmTYS - ORD
1 stop9h 20mFrontier
Deal found 11/20$208
This Frontier deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Frontier is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/127:15 amMDW - TYS
1 stop7h 01mFrontier
Sun 12/154:19 pmTYS - MDW
1 stop8h 54mFrontier
Deal found 11/20$208
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/184:08 pmSTL - TYS
1 stop7h 13mAmerican Airlines
Wed 12/2510:58 amTYS - STL
1 stop3h 39mAmerican Airlines
Deal found 11/20$218
This American Airlines deal was found by Cheapflights users on 11/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/103:24 pmMLI - TYS
1 stop7h 57mAmerican Airlines
Sat 12/148:02 pmTYS - MLI
1 stop4h 53mAmerican Airlines
Deal found 11/20$233
This Delta deal was found by Cheapflights users on 11/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/75:30 pmSTL - TYS
1 stop4h 02mDelta
Thu 12/126:38 pmTYS - STL
1 stop6h 05mDelta
Deal found 11/19$233
This United Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/63:16 pmPIA - TYS
1 stop4h 19mUnited Airlines
Tue 12/107:00 amTYS - PIA
1 stop4h 19mUnited Airlines
Deal found 11/21$238
This American Airlines deal was found by Cheapflights users on 11/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/64:40 pmPIA - TYS
2 stops6h 25mAmerican Airlines
Tue 12/1010:59 amTYS - PIA
1 stop5h 56mAmerican Airlines
Deal found 11/21$243

Find flights from Illinois to Knoxville within your budget

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, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.

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Fly to

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Route

Depart

Return

Price

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 12/14

7:20 am-10:08 am

Nonstop1h 48m

Knoxville McGhee Tyson

Wed 12/18

10:50 am-11:54 am

Nonstop2h 04m

$169

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Wed 12/11

7:05 am-11:43 am

1 stop3h 38m

Knoxville McGhee Tyson

Mon 12/16

7:59 pm-11:58 pm

1 stop4h 59m

$188

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Sat 12/14

8:23 am-11:09 am

Nonstop1h 46m

Knoxville McGhee Tyson

Thu 12/19

11:39 am-12:34 pm

Nonstop1h 55m

$194

ChicagoKnoxville

MDW - TYS

MDWTYS

Chicago Midway

Sat 1/4

6:00 am-1:52 pm

1 stop6h 52m

Knoxville McGhee Tyson

Sat 1/11

12:08 pm-2:53 pm

1 stop3h 45m

$198

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Tue 1/7

6:00 am-11:23 am

1 stop4h 23m

Knoxville McGhee Tyson

Sat 1/11

12:08 pm-3:44 pm

1 stop4h 36m

$208

St. LouisKnoxville

STL - TYS

STLTYS

Lambert-St Louis

Tue 1/7

5:42 am-2:18 pm

2 stops7h 36m

Knoxville McGhee Tyson

Sat 1/11

4:08 pm-7:23 pm

1 stop4h 15m

$213

MolineKnoxville

MLI - TYS

MLITYS

Moline Quad-City

Tue 12/10

3:24 pm-12:21 am

1 stop7h 57m

Knoxville McGhee Tyson

Sat 12/14

8:02 pm-11:55 pm

1 stop4h 53m

$233

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 12/6

3:16 pm-8:35 pm

1 stop4h 19m

Knoxville McGhee Tyson

Tue 12/10

7:00 am-10:19 am

1 stop4h 19m

$238

PeoriaKnoxville

PIA - TYS

PIATYS

Greater Peoria

Fri 12/6

4:40 pm-12:05 am

2 stops6h 25m

Knoxville McGhee Tyson

Tue 12/10

10:59 am-3:55 pm

1 stop5h 56m

$243

ChicagoKnoxville

ORD - TYS

ORDTYS

Chicago O'Hare Intl

Mon 12/9

7:45 pm-9:07 am

1 stop12h 22m

Knoxville McGhee Tyson

Thu 12/12

7:30 am-8:58 pm

1 stop14h 28m

$246

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/20

Showing 1-10 of 34 results
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Best time to book a flight from Illinois to Knoxville

Have a flexible travel schedule? Discover the best time to fly to Knoxville from Illinois with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Travel insights for flights from Illinois to Knoxville

Get recent, data-driven insights about flights from Illinois to Knoxville including ideal travel times, pricing trends, and more.

What is the cheapest month to book a flight from Illinois to Knoxville?

Currently, January is the cheapest month in which you can book a flight from Illinois to Knoxville (average of $304). Flying from Illinois to Knoxville in April is currently the most expensive (average of $371). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from IL to TYS?

Find hourly flight availability from Illinois to Knoxville. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 21, 2024.

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.

Weekly flight availability from Illinois to Knoxville

Explore weekly flight availability from Illinois to Knoxville. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated November 21, 2024.

The most flights from USIL to TYS are scheduled on a Thursday (21 on average). You will have fewer flight options on Saturday, which is when the least amount of flights are scheduled (10 on average).

Rainfall in Knoxville by month

Plan your trip to Knoxville by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Knoxville ranges from 2.7 - 4.8 inches per month. March is typically the wettest month, when rainfall can reach 4.8 in. October is typically the driest time to visit Knoxville when rainfall is around 2.7 in.

Temperature in Knoxville by month

Plan your trip to Knoxville by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Knoxville, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 78.8 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 39.2 F).

Reviews of airlines servicing Knoxville

Get insights into the airlines that provide service to Knoxville. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Knoxville. Reviews last updated November 21, 2024.
See what other customers who have flown with United Airlines, American Airlines and Delta 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
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,755 reviews
Delta
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
9,172 reviews
Delta
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Allegiant Air
7.4
Good
850 reviews
Delta
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

WestJet
7.3
Good
2,811 reviews
Delta
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

American Airlines
7.2
Good
10,000 reviews
Delta
8.0
Very good
8,755 reviews

Crew

8.5

Boarding

8.2

Overall

8.0

Comfort

7.9

Food

7.3

Entertainment

7.9

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Illinois to Knoxville. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • 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.

  • 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 Frontier ($54), American Airlines ($85), and Allegiant Air ($93).

  • What are the most popular routes from Illinois to Knoxville?

    While some choose either Chicago Midway - Knoxville McGhee Tyson or Lambert-St Louis - Knoxville McGhee Tyson, Chicago O'Hare Intl - Knoxville McGhee Tyson is the most popular route 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 Air Wisconsin (97%), Republic Airways (96%) or American Airlines (89%) 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 $347, our data shows the cheapest flight currently is $179. When looking at the most popular route, (Chicago O'Hare Intl - Knoxville McGhee Tyson), you can expect to pay $143 for that flight.

  • Can I find deals for flights from Illinois to Knoxville that include hotel bookings?

    Yes. In addition to deals on Illinois to Knoxville flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Illinois to Knoxville?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Knoxville.

  • Can I find deals for business class flights from Illinois to Knoxville?

    Yes. Cheapflights offers flight deals from Illinois to Knoxville by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Illinois to Knoxville?

    Currently, January is the cheapest month in which you can book a flight from Illinois to Knoxville (average of $304). Flying from Illinois to Knoxville in April is currently the most expensive (average of $371). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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Alternative routes for Illinois to Knoxville

See prices for flight routes from nearby airports that may be better suited for you.
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Top 5 airlines flying from Illinois to Knoxville

Discover the top 5 airlines that operate flights from Illinois to Knoxville. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,612,795 searches. Data last updated November 21, 2024.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$59Average$147FlexibilityNo cancel feeOn-time88%
FrontierCheapest$158Average$227FlexibilityNo cancel feeOn-time62%
DeltaCheapest$160Average$299FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$160Average$407FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$180Average$353FlexibilityNo cancel feeOn-time69%
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