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$84+ Cheap flights from Knoxville (TYS) to Illinois

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 2/2. Fares are subject to change and may not be available on all flights or dates of travel.
TYS — ORD
Dec 7 — Dec 141
Sat 12/7
Sat 12/14
1 adult, Economy
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Cheap flight deals from Knoxville to Illinois

Discover tips and strategies to find the most affordable flight options for your journey from Knoxville (TYS) to Illinois (USIL). 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 December 2, 2024.

Find flight deals from Knoxville to Illinois

Cheapest flights from Knoxville to Illinois
Explore the most affordable flight options available from Knoxville to Illinois. Find the lowest fares from popular airlines and budget airlines, with prices last updated on December 2, 2024.

This American Airlines deal was found by Cheapflights users on 12/2. 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 12/2511:39 amTYS - ORD
Nonstop1h 55mAmerican Airlines
Mon 1/63:35 pmORD - TYS
Nonstop1h 36mAmerican Airlines
Deal found 12/2$204
This Delta deal was found by Cheapflights users on 11/30. 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 12/146:57 pmTYS - MDW
1 stop4h 09mDelta
Wed 12/1810:38 amMDW - TYS
1 stop6h 14mDelta
Deal found 11/30$218
This Delta deal was found by Cheapflights users on 12/1. 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.
Tue 12/109:00 amTYS - ORD
1 stop6h 26mDelta
Sat 1/185:45 amORD - TYS
1 stop6h 42mDelta
Deal found 12/1$223
This American Airlines deal was found by Cheapflights users on 12/1. 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 12/2511:39 amTYS - PIA
1 stop3h 35mAmerican Airlines
Mon 1/65:30 amPIA - TYS
1 stop4h 38mAmerican Airlines
Deal found 12/1$228
This American Airlines deal was found by Cheapflights users on 11/30. 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.
Sun 12/85:16 amTYS - STL
1 stop6h 31mAmerican Airlines
Fri 1/105:03 amSTL - TYS
1 stop5h 23mAmerican Airlines
Deal found 11/30$248
This United deal was found by Cheapflights users on 12/1. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/276:55 amTYS - ORD
Nonstop2h 05mUnited Airlines
Fri 1/317:51 pmORD - TYS
Nonstop1h 45mUnited Airlines
Deal found 12/1$254
This Frontier deal was found by Cheapflights users on 12/2. 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 12/124:19 pmTYS - MDW
1 stop8h 54mFrontier
Sun 12/157:15 amMDW - TYS
1 stop7h 01mFrontier
Deal found 12/2$258
This Delta deal was found by Cheapflights users on 12/2. 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.
Fri 12/65:20 amTYS - STL
1 stop5h 02mDelta
Sun 12/86:00 amSTL - TYS
1 stop3h 57mDelta
Deal found 12/2$288
This Mytrip deal was found by Cheapflights users on 12/1. 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.
Tue 12/316:20 amTYS - ORD
1 stop15h 29mMultiple Airlines
Wed 1/17:53 pmORD - TYS
1 stop13h 49mMultiple Airlines
Deal found 12/1$288
This Delta deal was found by Cheapflights users on 12/1. 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.
Thu 12/512:01 pmTYS - MLI
1 stop5h 25mDelta
Sat 12/75:25 pmMLI - TYS
1 stop5h 26mDelta
Deal found 12/1$338
This American Airlines deal was found by Cheapflights users on 12/2. 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 12/284:07 pmTYS - MLI
1 stop6h 49mAmerican Airlines
Wed 1/15:45 amMLI - TYS
2 stops8h 52mAmerican Airlines
Deal found 12/2$393
This United Airlines deal was found by Cheapflights users on 12/2. 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.
Mon 12/306:55 amTYS - STL
1 stop6h 31mUnited Airlines
Mon 1/611:10 amSTL - TYS
1 stop5h 55mUnited Airlines
Deal found 12/2$403

Find flights from Knoxville to Illinois within your budget

Customize your flight search to find flights from Knoxville to Illinois 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 2,650,959 searches. Data last updated December 2, 2024.

Fly from

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Fly to

Any airport

Route

Depart

Return

Price

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 1/16

1:55 pm-2:51 pm

Nonstop1h 56m

Chicago O'Hare Intl

Thu 1/23

2:10 pm-4:59 pm

Nonstop1h 49m

$169

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Mon 1/13

7:25 am-1:08 pm

1 stop6h 43m

Chicago Midway

Wed 1/22

6:00 am-1:27 pm

1 stop6h 27m

$188

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Thu 1/9

6:36 am-10:43 am

1 stop5h 07m

Chicago O'Hare Intl

Mon 1/13

5:55 pm-11:47 pm

1 stop4h 52m

$188

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Wed 12/25

11:39 am-12:34 pm

Nonstop1h 55m

Chicago O'Hare Intl

Mon 1/6

3:35 pm-6:11 pm

Nonstop1h 36m

$204

KnoxvillePeoria

TYS - PIA

TYSPIA

Knoxville McGhee Tyson

Tue 1/21

11:02 am-3:50 pm

1 stop5h 48m

Greater Peoria

Tue 1/28

4:25 pm-11:58 pm

1 stop6h 33m

$208

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Wed 1/15

7:17 pm-11:37 pm

1 stop5h 20m

Lambert-St Louis

Wed 1/22

11:04 am-6:37 pm

1 stop6h 33m

$208

KnoxvilleChicago

TYS - ORD

TYSORD

Knoxville McGhee Tyson

Mon 1/6

6:24 pm-7:47 am

1 stop14h 23m

Chicago O'Hare Intl

Fri 1/10

7:26 am-7:11 pm

1 stop10h 45m

$243

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Sun 12/8

5:16 am-10:47 am

1 stop6h 31m

Lambert-St Louis

Fri 1/10

5:03 am-11:26 am

1 stop5h 23m

$248

KnoxvilleChicago

TYS - MDW

TYSMDW

Knoxville McGhee Tyson

Thu 12/12

4:19 pm-12:13 am

1 stop8h 54m

Chicago Midway

Sun 12/15

7:15 am-3:16 pm

1 stop7h 01m

$258

KnoxvilleSt. Louis

TYS - STL

TYSSTL

Knoxville McGhee Tyson

Thu 1/9

9:10 am-2:37 pm

1 stop6h 27m

Lambert-St Louis

Mon 1/13

5:30 pm-10:36 pm

1 stop4h 06m

$284

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/2

Showing 1-10 of 29 results
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Best time to book a flight from Knoxville to Illinois

Have a flexible travel schedule? Discover the best time to fly to Illinois from Knoxville 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 Knoxville to Illinois

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

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

Currently, September is the cheapest month in which you can book a flight from Knoxville to Illinois (average of $232). Flying from Knoxville to Illinois in June is currently the most expensive (average of $308). 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 TYS to IL?

Find hourly flight availability from Knoxville to Illinois. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated December 2, 2024.

When flying from Knoxville to Illinois, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Rainfall in Illinois by month

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

In terms of precipitation, rainfall in Illinois ranges from 1.7 - 4.9 inches per month. August is typically the wettest month, when rainfall can reach 4.9 in. January is typically the driest time to visit Illinois when rainfall is around 1.7 in.

Temperature in Illinois by month

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

If weather is an important factor for your trip to Illinois, 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 73.4 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 23.0 F).

Reviews of airlines servicing Illinois

Get insights into the airlines that provide service to Illinois. 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 Illinois. Reviews last updated December 2, 2024.
Get a feel of what it's like to fly with American Airlines, United Airlines and Delta from Knoxville to Illinois by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

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
8,698 reviews
Delta
8.0
Very good
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

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
9,141 reviews
Delta
8.0
Very good
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

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
2,815 reviews
Delta
8.0
Very good
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

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
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

Entertainment

7.9

Reviews

1 / 10

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

Frontier
6.1
Okay
3,508 reviews
Delta
8.0
Very good
8,698 reviews

Comfort

7.9

Boarding

8.2

Food

7.3

Overall

8.0

Crew

8.6

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 Knoxville to Illinois. 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 from for flights from Knoxville to Illinois?

    If you book a flight to Illinois from Knoxville, you will be flying from McGhee Tyson, which is the city’s only airport. Knoxville McGhee Tyson (TYS) is located 11.3 mi from the center of Knoxville.

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

    The cheapest airline one-way is Frontier, with whom users have recently found tickets for as low as $84. However, be on the lookout for offers from American Airlines and Delta, as they are both options that can get you from Knoxville to Illinois for a low price.

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

    When deciding which route to take from Knoxville to Illinois consider Knoxville McGhee Tyson - Chicago O'Hare Intl, Knoxville McGhee Tyson - Chicago Midway or Knoxville McGhee Tyson - Lambert-St Louis as they are the most popular.

  • What are the most reliable airlines from Knoxville to Illinois?

    No one likes to see their flight delayed. When booking a flight from Knoxville to Illinois consider choosing Avianca (100%), ANA (98%) or Emirates (96%) as they are the most reliable in getting you off to your destination on time.

  • What are the cheapest flights from Knoxville to Illinois?

    Looking for the cheapest flight from Knoxville to Illinois? While on average our users pay $922, our data indicates the cheapest price to be $195. The most popular route (Knoxville McGhee Tyson - Chicago O'Hare Intl), is priced around $169.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Knoxville to Illinois 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 Knoxville to Illinois?

    Currently, September is the cheapest month in which you can book a flight from Knoxville to Illinois (average of $232). Flying from Knoxville to Illinois in June is currently the most expensive (average of $308). 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 Knoxville to Illinois

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Top 4 airlines flying from Knoxville to Illinois

Discover the top 4 airlines that operate flights from Knoxville to Illinois. 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 2,650,959 searches. Data last updated December 2, 2024.
AirlineCheapestAverageFlexibilityOn-time
Allegiant AirCheapest$74Average$81FlexibilityNo cancel feeOn-time88%
American AirlinesCheapest$167Average$371FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$170Average$302FlexibilityNo cancel feeOn-time69%
DeltaCheapest$187Average$308FlexibilityNo cancel feeOn-timeN/A
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